#380 merge cd_mkdir and cd_correction rules

rm -f $eval_script

.travis.yml

@@ -1,5 +1,7 @@
 language: python
+sudo: false
 python:
+  - "3.5"
   - "3.4"
   - "3.3"
   - "2.7"
@@ -14,8 +16,6 @@ addons:
       - tcsh
       - pandoc
       - git
-env:
-  - FUNCTIONAL=true BARE=true
 install:
   - pip install coveralls
   - pip install -r requirements.txt
@@ -23,5 +23,5 @@ install:
   - rm -rf build
 script:
   - export COVERAGE_PYTHON_VERSION=python-${TRAVIS_PYTHON_VERSION:0:1}
-  - coverage run --source=thefuck,tests -m py.test -v --capture=sys
+  - coverage run --source=thefuck,tests -m py.test -v --capture=sys --run-without-docker --enable-functional
 after_success: coveralls

README.md

@@ -141,8 +141,8 @@ using the matched rule and runs it. Rules enabled by default are as follows:
 
 * `cargo` – runs `cargo build` instead of `cargo`;
 * `cargo_no_command` – fixes wrongs commands like `cargo buid`;
-* `cd_correction` – spellchecks and correct failed cd commands;
-* `cd_mkdir` – creates directories before cd'ing into them;
+* `cd_correction` – spellchecks and correct failed cd commands, when it's not possible
+creates directories before cd'ing into them;
 * `cd_parent` – changes `cd..` to `cd ..`;
 * `composer_not_command` – fixes composer command name;
 * `cp_omitting_directory` – adds `-a` when you `cp` directory;
@@ -198,6 +198,7 @@ using the matched rule and runs it. Rules enabled by default are as follows:
 * `switch_lang` – switches command from your local layout to en;
 * `systemctl` – correctly orders parameters of confusing `systemctl`;
 * `test.py` – runs `py.test` instead of `test.py`;
+* `touch` – creates missing directories before "touching";
 * `tsuru_login` – runs `tsuru login` if not authenticated or session expired;
 * `tsuru_not_command` – fixes wrong `tsuru` commands like `tsuru shell`;
 * `tmux` – fixes `tmux` commands;
@@ -226,36 +227,37 @@ For adding your own rule you should create `your-rule-name.py`
 in `~/.thefuck/rules`. The rule should contain two functions:
 
 ```python
-match(command: Command, settings: Settings) -> bool
-get_new_command(command: Command, settings: Settings) -> str | list[str]
+match(command: Command) -> bool
+get_new_command(command: Command) -> str | list[str]
 ```
 
 Also the rule can contain an optional function
 
 ```python
-side_effect(old_command: Command, fixed_command: str, settings: Settings) -> None
+side_effect(old_command: Command, fixed_command: str) -> None
 ```
 and optional `enabled_by_default`, `requires_output` and `priority` variables.
 
 `Command` has three attributes: `script`, `stdout` and `stderr`.
 
-`Settings` is a special object filled with `~/.thefuck/settings.py` and values from env ([see more below](#settings)).
+*Rules api changed in 3.0:* For accessing settings in rule you need to import it with `from thefuck.conf import settings`.
+`settings` is a special object filled with `~/.thefuck/settings.py` and values from env ([see more below](#settings)).
 
 Simple example of the rule for running script with `sudo`:
 
 ```python
-def match(command, settings):
+def match(command):
     return ('permission denied' in command.stderr.lower()
             or 'EACCES' in command.stderr)
 
 
-def get_new_command(command, settings):
+def get_new_command(command):
     return 'sudo {}'.format(command.script)
 
 # Optional:
 enabled_by_default = True
 
-def side_effect(command, settings):
+def side_effect(command, fixed_command):
     subprocess.call('chmod 777 .', shell=True)
 
 priority = 1000  # Lower first, default is 1000
@@ -264,13 +266,15 @@ requires_output = True
 ```
 
 [More examples of rules](https://github.com/nvbn/thefuck/tree/master/thefuck/rules),
-[utility functions for rules](https://github.com/nvbn/thefuck/tree/master/thefuck/utils.py).
+[utility functions for rules](https://github.com/nvbn/thefuck/tree/master/thefuck/utils.py),
+[app/os-specific helpers](https://github.com/nvbn/thefuck/tree/master/thefuck/specific/).
 
 ## Settings
 
 The Fuck has a few settings parameters which can be changed in `~/.thefuck/settings.py`:
 
 * `rules` – list of enabled rules, by default `thefuck.conf.DEFAULT_RULES`;
+* `exclude_rules` – list of disabled rules, by default `[]`;
 * `require_confirmation` – requires confirmation before running new command, by default `True`;
 * `wait_command` – max amount of time in seconds for getting previous command output;
 * `no_colors` – disable colored output;
@@ -281,6 +285,7 @@ Example of `settings.py`:
 
 ```python
 rules = ['sudo', 'no_command']
+exclude_rules = ['git_push']
 require_confirmation = True
 wait_command = 10
 no_colors = False
@@ -291,6 +296,7 @@ debug = False
 Or via environment variables:
 
 * `THEFUCK_RULES` – list of enabled rules, like `DEFAULT_RULES:rm_root` or `sudo:no_command`;
+* `THEFUCK_EXCLUDE_RULES` – list of disabled rules, like `git_pull:git_push`; 
 * `THEFUCK_REQUIRE_CONFIRMATION` – require confirmation before running new command, `true/false`;
 * `THEFUCK_WAIT_COMMAND` – max amount of time in seconds for getting previous command output;
 * `THEFUCK_NO_COLORS` – disable colored output, `true/false`;
@@ -302,6 +308,7 @@ For example:
 
 ```bash
 export THEFUCK_RULES='sudo:no_command'
+export THEFUCK_EXCLUDE_RULES='git_pull:git_push'
 export THEFUCK_REQUIRE_CONFIRMATION='true'
 export THEFUCK_WAIT_COMMAND=10
 export THEFUCK_NO_COLORS='false'
@@ -326,7 +333,7 @@ py.test
 Run unit and functional tests (requires docker):
 
 ```bash
-FUNCTIONAL=true py.test
+py.test --enable-functional
 ```
 
 For sending package to pypi:

install.sh

@@ -4,8 +4,12 @@ should_add_alias () {
     [ -f $1 ] && ! grep -q thefuck $1
 }
 
+installed () {
+    hash $1 2>/dev/null
+}
+
 # Install os dependencies:
-if [ -f $(which apt-get) ]; then
+if installed apt-get; then
     # Debian/ubuntu:
     sudo apt-get update -yy
     sudo apt-get install -yy python-pip python-dev command-not-found
@@ -15,7 +19,7 @@ if [ -f $(which apt-get) ]; then
         sudo apt-get install -yy python-commandnotfound
     fi
 else
-    if [ -f $(which brew) ]; then
+    if installed brew; then
         # OS X:
         brew update
         brew install python

requirements.txt

@@ -6,3 +6,4 @@ setuptools>=17.1
 pexpect
 pypandoc
 pytest-benchmark
+pytest-docker-pexpect

setup.py

@@ -20,7 +20,7 @@ elif (3, 0) < version < (3, 3):
           ' ({}.{} detected).'.format(*version))
     sys.exit(-1)
 
-VERSION = '2.9.1'
+VERSION = '3.1'
 
 install_requires = ['psutil', 'colorama', 'six', 'decorator']
 extras_require = {':python_version<"3.4"': ['pathlib']}
@@ -41,4 +41,5 @@ setup(name='thefuck',
       extras_require=extras_require,
       entry_points={'console_scripts': [
           'thefuck = thefuck.main:main',
-          'thefuck-alias = thefuck.main:print_alias']})
+          'thefuck-alias = thefuck.main:print_alias',
+          'fuck = thefuck.main:how_to_configure_alias']})

tests/conftest.py

@@ -1,5 +1,13 @@
+from pathlib import Path
 import pytest
-from mock import Mock
+from thefuck import conf
+
+
+def pytest_addoption(parser):
+    """Adds `--run-without-docker` argument."""
+    group = parser.getgroup("thefuck")
+    group.addoption('--enable-functional', action="store_true", default=False,
+                    help="Enable functional tests")
 
 
 @pytest.fixture
@@ -7,11 +15,34 @@ def no_memoize(monkeypatch):
     monkeypatch.setattr('thefuck.utils.memoize.disabled', True)
 
 
+@pytest.fixture(autouse=True)
+def settings(request):
+    def _reset_settings():
+        conf.settings.clear()
+        conf.settings.update(conf.DEFAULT_SETTINGS)
+
+    request.addfinalizer(_reset_settings)
+    conf.settings.user_dir = Path('~/.thefuck')
+    return conf.settings
+
+
 @pytest.fixture
-def settings():
-    return Mock(debug=False, no_colors=True)
+def no_colors(settings):
+    settings.no_colors = True
 
 
 @pytest.fixture(autouse=True)
 def no_cache(monkeypatch):
     monkeypatch.setattr('thefuck.utils.cache.disabled', True)
+
+
+@pytest.fixture(autouse=True)
+def functional(request):
+    if request.node.get_marker('functional') \
+            and not request.config.getoption('enable_functional'):
+        pytest.skip('functional tests are disabled')
+
+
+@pytest.fixture
+def source_root():
+    return Path(__file__).parent.parent.resolve()

tests/functional/plots.py

@@ -1,6 +1,3 @@
-from pexpect import TIMEOUT
-
-
 def _set_confirmation(proc, require):
     proc.sendline(u'mkdir -p ~/.thefuck')
     proc.sendline(
@@ -8,7 +5,7 @@ def _set_confirmation(proc, require):
             require))
 
 
-def with_confirmation(proc):
+def with_confirmation(proc, TIMEOUT):
     """Ensures that command can be fixed when confirmation enabled."""
     _set_confirmation(proc, True)
 
@@ -23,19 +20,19 @@ def with_confirmation(proc):
     assert proc.expect([TIMEOUT, u'test'])
 
 
-def history_changed(proc, to):
+def history_changed(proc, TIMEOUT, to):
     """Ensures that history changed."""
     proc.send('\033[A')
     assert proc.expect([TIMEOUT, to])
 
 
-def history_not_changed(proc):
+def history_not_changed(proc, TIMEOUT):
     """Ensures that history not changed."""
     proc.send('\033[A')
     assert proc.expect([TIMEOUT, u'fuck'])
 
 
-def select_command_with_arrows(proc):
+def select_command_with_arrows(proc, TIMEOUT):
     """Ensures that command can be selected with arrow keys."""
     _set_confirmation(proc, True)
 
@@ -50,12 +47,14 @@ def select_command_with_arrows(proc):
     assert proc.expect([TIMEOUT, u'git help'])
     proc.send('\033[A')
     assert proc.expect([TIMEOUT, u'git push'])
+    proc.send('\033[B')
+    assert proc.expect([TIMEOUT, u'git help'])
     proc.send('\n')
 
-    assert proc.expect([TIMEOUT, u'Not a git repository'])
+    assert proc.expect([TIMEOUT, u'usage'])
 
 
-def refuse_with_confirmation(proc):
+def refuse_with_confirmation(proc, TIMEOUT):
     """Ensures that fix can be refused when confirmation enabled."""
     _set_confirmation(proc, True)
 
@@ -70,7 +69,7 @@ def refuse_with_confirmation(proc):
     assert proc.expect([TIMEOUT, u'Aborted'])
 
 
-def without_confirmation(proc):
+def without_confirmation(proc, TIMEOUT):
     """Ensures that command can be fixed when confirmation disabled."""
     _set_confirmation(proc, False)
 
@@ -79,3 +78,9 @@ def without_confirmation(proc):
     proc.sendline(u'fuck')
     assert proc.expect([TIMEOUT, u'echo test'])
     assert proc.expect([TIMEOUT, u'test'])
+
+
+def how_to_configure(proc, TIMEOUT):
+    proc.sendline(u'unalias fuck')
+    proc.sendline(u'fuck')
+    assert proc.expect([TIMEOUT, u"alias isn't configured"])

tests/functional/test_bash.py

@@ -1,53 +1,67 @@
 import pytest
 from tests.functional.plots import with_confirmation, without_confirmation, \
     refuse_with_confirmation, history_changed, history_not_changed, \
-    select_command_with_arrows
-from tests.functional.utils import spawn, functional, images
+    select_command_with_arrows, how_to_configure
 
-containers = images(('ubuntu-python3-bash', u'''
-FROM ubuntu:latest
-RUN apt-get update
-RUN apt-get install -yy python3 python3-pip python3-dev git
-RUN pip3 install -U setuptools
-RUN ln -s /usr/bin/pip3 /usr/bin/pip
-'''),
-                    ('ubuntu-python2-bash', u'''
-FROM ubuntu:latest
-RUN apt-get update
-RUN apt-get install -yy python python-pip python-dev git
-RUN pip2 install -U pip setuptools
-'''))
+containers = ((u'thefuck/ubuntu-python3-bash',
+               u'''FROM ubuntu:latest
+                   RUN apt-get update
+                   RUN apt-get install -yy python3 python3-pip python3-dev git
+                   RUN pip3 install -U setuptools
+                   RUN ln -s /usr/bin/pip3 /usr/bin/pip''',
+               u'bash'),
+              (u'thefuck/ubuntu-python2-bash',
+               u'''FROM ubuntu:latest
+                   RUN apt-get update
+                   RUN apt-get install -yy python python-pip python-dev git
+                   RUN pip2 install -U pip setuptools''',
+               u'bash'))
 
 
 @pytest.fixture(params=containers)
-def proc(request):
-    tag, dockerfile = request.param
-    proc = spawn(request, tag, dockerfile, u'bash')
+def proc(request, spawnu, run_without_docker):
+    proc = spawnu(*request.param)
+    if not run_without_docker:
+        proc.sendline(u"pip install /src")
     proc.sendline(u"export PS1='$ '")
     proc.sendline(u'eval $(thefuck --alias)')
     proc.sendline(u'echo > $HISTFILE')
     return proc
 
 
-@functional
-def test_with_confirmation(proc):
-    with_confirmation(proc)
-    history_changed(proc, u'echo test')
+@pytest.mark.functional
+@pytest.mark.once_without_docker
+def test_with_confirmation(proc, TIMEOUT, run_without_docker):
+    with_confirmation(proc, TIMEOUT)
+    if not run_without_docker:
+        history_changed(proc, TIMEOUT, u'echo test')
 
 
-@functional
-def test_select_command_with_arrows(proc):
-    select_command_with_arrows(proc)
-    history_changed(proc, u'git push')
+@pytest.mark.functional
+@pytest.mark.once_without_docker
+def test_select_command_with_arrows(proc, TIMEOUT, run_without_docker):
+    select_command_with_arrows(proc, TIMEOUT)
+    if not run_without_docker:
+        history_changed(proc, TIMEOUT, u'git help')
 
 
-@functional
-def test_refuse_with_confirmation(proc):
-    refuse_with_confirmation(proc)
-    history_not_changed(proc)
+@pytest.mark.functional
+@pytest.mark.once_without_docker
+def test_refuse_with_confirmation(proc, TIMEOUT, run_without_docker):
+    refuse_with_confirmation(proc, TIMEOUT)
+    if not run_without_docker:
+        history_not_changed(proc, TIMEOUT)
 
 
-@functional
-def test_without_confirmation(proc):
-    without_confirmation(proc)
-    history_changed(proc, u'echo test')
+@pytest.mark.functional
+@pytest.mark.once_without_docker
+def test_without_confirmation(proc, TIMEOUT, run_without_docker):
+    without_confirmation(proc, TIMEOUT)
+    if not run_without_docker:
+        history_changed(proc, TIMEOUT, u'echo test')
+
+
+@pytest.mark.functional
+@pytest.mark.once_without_docker
+def test_how_to_configure_alias(proc, TIMEOUT):
+    how_to_configure(proc, TIMEOUT)

tests/functional/test_fish.py

@@ -1,59 +1,54 @@
 import pytest
 from tests.functional.plots import with_confirmation, without_confirmation, \
     refuse_with_confirmation, select_command_with_arrows
-from tests.functional.utils import spawn, functional, images, bare
 
-containers = images(('ubuntu-python3-fish', u'''
-FROM ubuntu:latest
-RUN apt-get update
-RUN apt-get install -yy python3 python3-pip python3-dev fish git
-RUN pip3 install -U setuptools
-RUN ln -s /usr/bin/pip3 /usr/bin/pip
-RUN apt-get install -yy fish
-'''),
-                    ('ubuntu-python2-fish', u'''
-FROM ubuntu:latest
-RUN apt-get update
-RUN apt-get install -yy python python-pip python-dev git
-RUN pip2 install -U pip setuptools
-RUN apt-get install -yy fish
-'''))
+containers = (('thefuck/ubuntu-python3-fish',
+               u'''FROM ubuntu:latest
+                   RUN apt-get update
+                   RUN apt-get install -yy python3 python3-pip python3-dev fish git
+                   RUN pip3 install -U setuptools
+                   RUN ln -s /usr/bin/pip3 /usr/bin/pip
+                   RUN apt-get install -yy fish''',
+               u'fish'),
+              ('thefuck/ubuntu-python2-fish',
+               u'''FROM ubuntu:latest
+                   RUN apt-get update
+                   RUN apt-get install -yy python python-pip python-dev git
+                   RUN pip2 install -U pip setuptools
+                   RUN apt-get install -yy fish''',
+               u'fish'))
 
 
 @pytest.fixture(params=containers)
-def proc(request):
-    tag, dockerfile = request.param
-    proc = spawn(request, tag, dockerfile, u'fish')
+def proc(request, spawnu):
+    proc = spawnu(*request.param)
+    proc.sendline(u"pip install /src")
     proc.sendline(u'thefuck --alias > ~/.config/fish/config.fish')
     proc.sendline(u'fish')
     return proc
 
 
-@functional
-@pytest.mark.skipif(
-    bool(bare), reason='https://github.com/travis-ci/apt-source-whitelist/issues/71')
-def test_with_confirmation(proc):
-    with_confirmation(proc)
+@pytest.mark.functional
+@pytest.mark.skip_without_docker
+def test_with_confirmation(proc, TIMEOUT):
+    with_confirmation(proc, TIMEOUT)
 
 
-@functional
-@pytest.mark.skipif(
-    bool(bare), reason='https://github.com/travis-ci/apt-source-whitelist/issues/71')
-def test_select_command_with_arrows(proc):
-    select_command_with_arrows(proc)
+@pytest.mark.functional
+@pytest.mark.skip_without_docker
+def test_select_command_with_arrows(proc, TIMEOUT):
+    select_command_with_arrows(proc, TIMEOUT)
 
 
-@functional
-@pytest.mark.skipif(
-    bool(bare), reason='https://github.com/travis-ci/apt-source-whitelist/issues/71')
-def test_refuse_with_confirmation(proc):
-    refuse_with_confirmation(proc)
+@pytest.mark.functional
+@pytest.mark.skip_without_docker
+def test_refuse_with_confirmation(proc, TIMEOUT):
+    refuse_with_confirmation(proc, TIMEOUT)
 
 
-@functional
-@pytest.mark.skipif(
-    bool(bare), reason='https://github.com/travis-ci/apt-source-whitelist/issues/71')
-def test_without_confirmation(proc):
-    without_confirmation(proc)
+@pytest.mark.functional
+@pytest.mark.skip_without_docker
+def test_without_confirmation(proc, TIMEOUT):
+    without_confirmation(proc, TIMEOUT)
 
 # TODO: ensure that history changes.

tests/functional/test_install.py

@@ -1,25 +1,25 @@
 import pytest
-from pexpect import TIMEOUT
-from tests.functional.utils import spawn, functional, bare
+from thefuck.utils import get_installation_info
 
-envs = ((u'bash', 'ubuntu-bash', u'''
+envs = ((u'bash', 'thefuck/ubuntu-bash', u'''
 FROM ubuntu:latest
 RUN apt-get update
 RUN apt-get install -yy bash
-'''), (u'bash', 'generic-bash', u'''
+'''), (u'bash', 'thefuck/generic-bash', u'''
 FROM fedora:latest
-RUN dnf install -yy python-devel sudo which gcc
+RUN dnf install -yy python-devel sudo wget gcc
 '''))
 
 
-@functional
-@pytest.mark.skipif(
-    bool(bare), reason="Can't be tested in bare run")
+@pytest.mark.functional
+@pytest.mark.skip_without_docker
 @pytest.mark.parametrize('shell, tag, dockerfile', envs)
-def test_installation(request, shell, tag, dockerfile):
-    proc = spawn(request, tag, dockerfile, shell, install=False)
+def test_installation(spawnu, shell, TIMEOUT, tag, dockerfile):
+    proc = spawnu(tag, dockerfile, shell)
     proc.sendline(u'cat /src/install.sh | sh - && $0')
     proc.sendline(u'thefuck --version')
-    assert proc.expect([TIMEOUT, u'The Fuck'], timeout=600)
+    version = get_installation_info().version
+    assert proc.expect([TIMEOUT, u'thefuck {}'.format(version)],
+                       timeout=600)
     proc.sendline(u'fuck')
     assert proc.expect([TIMEOUT, u'No fucks given'])

tests/functional/test_performance.py

@@ -1,7 +1,5 @@
-from pexpect import TIMEOUT
 import pytest
 import time
-from tests.functional.utils import spawn, functional, bare
 
 dockerfile = u'''
 FROM ubuntu:latest
@@ -11,24 +9,17 @@ RUN pip3 install -U setuptools
 RUN ln -s /usr/bin/pip3 /usr/bin/pip
 RUN adduser --disabled-password --gecos '' test
 ENV SEED "{seed}"
-COPY thefuck /src
 WORKDIR /src
-RUN pip install .
 USER test
 RUN echo 'eval $(thefuck --alias)' > /home/test/.bashrc
 RUN echo > /home/test/.bash_history
 RUN git config --global user.email "you@example.com"
 RUN git config --global user.name "Your Name"
+USER root
 '''.format(seed=time.time())
 
 
-@pytest.fixture
-def proc(request):
-    return spawn(request, 'ubuntu-python3-bash-performance',
-                 dockerfile, u'bash', install=False, copy_src=True)
-
-
-def plot(proc):
+def plot(proc, TIMEOUT):
     proc.sendline(u'cd /home/test/')
     proc.sendline(u'fuck')
     assert proc.expect([TIMEOUT, u'No fucks given'])
@@ -48,9 +39,12 @@ def plot(proc):
     assert proc.expect([TIMEOUT, u'test'])
 
 
-@functional
-@pytest.mark.skipif(
-    bool(bare), reason='Would lie on a bare run')
+@pytest.mark.functional
+@pytest.mark.skip_without_docker
 @pytest.mark.benchmark(min_rounds=10)
-def test_performance(proc, benchmark):
-    assert benchmark(plot, proc) is None
+def test_performance(spawnu, TIMEOUT, benchmark):
+    proc = spawnu(u'thefuck/ubuntu-python3-bash-performance',
+                  dockerfile, u'bash')
+    proc.sendline(u'pip install /src')
+    proc.sendline(u'su test')
+    assert benchmark(plot, proc, TIMEOUT) is None

tests/functional/test_tcsh.py

@@ -1,51 +1,55 @@
 import pytest
-from tests.functional.utils import spawn, functional, images
 from tests.functional.plots import with_confirmation, without_confirmation, \
     refuse_with_confirmation, select_command_with_arrows
 
-containers = images(('ubuntu-python3-tcsh', u'''
-FROM ubuntu:latest
-RUN apt-get update
-RUN apt-get install -yy python3 python3-pip python3-dev git
-RUN pip3 install -U setuptools
-RUN ln -s /usr/bin/pip3 /usr/bin/pip
-RUN apt-get install -yy tcsh
-'''),
-                    ('ubuntu-python2-tcsh', u'''
-FROM ubuntu:latest
-RUN apt-get update
-RUN apt-get install -yy python python-pip python-dev git
-RUN pip2 install -U pip setuptools
-RUN apt-get install -yy tcsh
-'''))
+containers = (('thefuck/ubuntu-python3-tcsh',
+               u'''FROM ubuntu:latest
+                   RUN apt-get update
+                   RUN apt-get install -yy python3 python3-pip python3-dev git
+                   RUN pip3 install -U setuptools
+                   RUN ln -s /usr/bin/pip3 /usr/bin/pip
+                   RUN apt-get install -yy tcsh''',
+               u'tcsh'),
+              ('thefuck/ubuntu-python2-tcsh',
+               u'''FROM ubuntu:latest
+                   RUN apt-get update
+                   RUN apt-get install -yy python python-pip python-dev git
+                   RUN pip2 install -U pip setuptools
+                   RUN apt-get install -yy tcsh''',
+               u'tcsh'))
 
 
 @pytest.fixture(params=containers)
-def proc(request):
-    tag, dockerfile = request.param
-    proc = spawn(request, tag, dockerfile, u'tcsh')
+def proc(request, spawnu, run_without_docker):
+    proc = spawnu(*request.param)
+    if not run_without_docker:
+        proc.sendline(u'pip install /src')
     proc.sendline(u'tcsh')
     proc.sendline(u'eval `thefuck --alias`')
     return proc
 
 
-@functional
-def test_with_confirmation(proc):
-    with_confirmation(proc)
+@pytest.mark.functional
+@pytest.mark.once_without_docker
+def test_with_confirmation(proc, TIMEOUT):
+    with_confirmation(proc, TIMEOUT)
 
 
-@functional
-def test_select_command_with_arrows(proc):
-    select_command_with_arrows(proc)
+@pytest.mark.functional
+@pytest.mark.once_without_docker
+def test_select_command_with_arrows(proc, TIMEOUT):
+    select_command_with_arrows(proc, TIMEOUT)
 
 
-@functional
-def test_refuse_with_confirmation(proc):
-    refuse_with_confirmation(proc)
+@pytest.mark.functional
+@pytest.mark.once_without_docker
+def test_refuse_with_confirmation(proc, TIMEOUT):
+    refuse_with_confirmation(proc, TIMEOUT)
 
 
-@functional
-def test_without_confirmation(proc):
-    without_confirmation(proc)
+@pytest.mark.functional
+@pytest.mark.once_without_docker
+def test_without_confirmation(proc, TIMEOUT):
+    without_confirmation(proc, TIMEOUT)
 
 # TODO: ensure that history changes.

tests/functional/test_zsh.py

@@ -1,29 +1,30 @@
 import pytest
-from tests.functional.utils import spawn, functional, images
 from tests.functional.plots import with_confirmation, without_confirmation, \
-    refuse_with_confirmation, history_changed, history_not_changed, select_command_with_arrows
+    refuse_with_confirmation, history_changed, history_not_changed, \
+    select_command_with_arrows, how_to_configure
 
-containers = images(('ubuntu-python3-zsh', u'''
-FROM ubuntu:latest
-RUN apt-get update
-RUN apt-get install -yy python3 python3-pip python3-dev git
-RUN pip3 install -U setuptools
-RUN ln -s /usr/bin/pip3 /usr/bin/pip
-RUN apt-get install -yy zsh
-'''),
-                    ('ubuntu-python2-zsh', u'''
-FROM ubuntu:latest
-RUN apt-get update
-RUN apt-get install -yy python python-pip python-dev git
-RUN pip2 install -U pip setuptools
-RUN apt-get install -yy zsh
-'''))
+containers = (('thefuck/ubuntu-python3-zsh',
+               u'''FROM ubuntu:latest
+                   RUN apt-get update
+                   RUN apt-get install -yy python3 python3-pip python3-dev git
+                   RUN pip3 install -U setuptools
+                   RUN ln -s /usr/bin/pip3 /usr/bin/pip
+                   RUN apt-get install -yy zsh''',
+               u'zsh'),
+              ('thefuck/ubuntu-python2-zsh',
+               u'''FROM ubuntu:latest
+                   RUN apt-get update
+                   RUN apt-get install -yy python python-pip python-dev git
+                   RUN pip2 install -U pip setuptools
+                   RUN apt-get install -yy zsh''',
+               u'zsh'))
 
 
 @pytest.fixture(params=containers)
-def proc(request):
-    tag, dockerfile = request.param
-    proc = spawn(request, tag, dockerfile, u'zsh')
+def proc(request, spawnu, run_without_docker):
+    proc = spawnu(*request.param)
+    if not run_without_docker:
+        proc.sendline(u'pip install /src')
     proc.sendline(u'eval $(thefuck --alias)')
     proc.sendline(u'export HISTFILE=~/.zsh_history')
     proc.sendline(u'echo > $HISTFILE')
@@ -33,25 +34,35 @@ def proc(request):
     return proc
 
 
-@functional
-def test_with_confirmation(proc):
-    with_confirmation(proc)
-    history_changed(proc, u'echo test')
+@pytest.mark.functional
+@pytest.mark.once_without_docker
+def test_with_confirmation(proc, TIMEOUT):
+    with_confirmation(proc, TIMEOUT)
+    history_changed(proc, TIMEOUT, u'echo test')
 
 
-@functional
-def test_select_command_with_arrows(proc):
-    select_command_with_arrows(proc)
-    history_changed(proc, u'git push')
+@pytest.mark.functional
+@pytest.mark.once_without_docker
+def test_select_command_with_arrows(proc, TIMEOUT):
+    select_command_with_arrows(proc, TIMEOUT)
+    history_changed(proc, TIMEOUT, u'git help')
 
 
-@functional
-def test_refuse_with_confirmation(proc):
-    refuse_with_confirmation(proc)
-    history_not_changed(proc)
+@pytest.mark.functional
+@pytest.mark.once_without_docker
+def test_refuse_with_confirmation(proc, TIMEOUT):
+    refuse_with_confirmation(proc, TIMEOUT)
+    history_not_changed(proc, TIMEOUT)
 
 
-@functional
-def test_without_confirmation(proc):
-    without_confirmation(proc)
-    history_changed(proc, u'echo test')
+@pytest.mark.functional
+@pytest.mark.once_without_docker
+def test_without_confirmation(proc, TIMEOUT):
+    without_confirmation(proc, TIMEOUT)
+    history_changed(proc, TIMEOUT, u'echo test')
+
+
+@pytest.mark.functional
+@pytest.mark.once_without_docker
+def test_how_to_configure_alias(proc, TIMEOUT):
+    how_to_configure(proc, TIMEOUT)

tests/functional/utils.py

@@ -1,65 +0,0 @@
-import pytest
-import os
-import subprocess
-import shutil
-from tempfile import mkdtemp
-from pathlib import Path
-import sys
-import pexpect
-from tests.utils import root
-
-
-bare = os.environ.get('BARE')
-enabled = os.environ.get('FUNCTIONAL')
-
-
-def build_container(tag, dockerfile, copy_src=False):
-    tmpdir = mkdtemp()
-    try:
-        if copy_src:
-            subprocess.call(['cp', '-a', str(root), tmpdir])
-        dockerfile_path = Path(tmpdir).joinpath('Dockerfile')
-        with dockerfile_path.open('w') as file:
-            file.write(dockerfile)
-        if subprocess.call(['docker', 'build', '--tag={}'.format(tag), tmpdir]) != 0:
-            raise Exception("Can't build a container")
-    finally:
-        shutil.rmtree(tmpdir)
-
-
-def spawn(request, tag, dockerfile, cmd, install=True, copy_src=False):
-    if bare:
-        proc = pexpect.spawnu(cmd)
-    else:
-        tag = 'thefuck/{}'.format(tag)
-        build_container(tag, dockerfile, copy_src)
-        proc = pexpect.spawnu('docker run --rm=true --volume {}:/src --tty=true '
-                              '--interactive=true {} {}'.format(root, tag, cmd))
-        if install:
-            proc.sendline('pip install /src')
-
-    proc.sendline('cd /')
-
-    proc.logfile = sys.stdout
-
-    def _finalizer():
-        proc.terminate()
-        if not bare:
-            container_id = subprocess.check_output(['docker', 'ps']) \
-                                     .decode('utf-8').split('\n')[-2].split()[0]
-            subprocess.check_call(['docker', 'kill', container_id])
-
-    request.addfinalizer(_finalizer)
-    return proc
-
-
-def images(*items):
-    if bare:
-        return [items[0]]
-    else:
-        return items
-
-
-functional = pytest.mark.skipif(
-    not enabled,
-    reason='Functional tests are disabled by default.')

tests/rules/test_apt_get.py

@@ -11,7 +11,7 @@ from tests.utils import Command
 @pytest.mark.parametrize('command', [
     Command(script='vim', stderr='vim: command not found')])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command, return_value', [
@@ -24,7 +24,7 @@ def test_match(command):
 def test_match_mocked(cmdnf_mock, command, return_value):
     get_packages = Mock(return_value=return_value)
     cmdnf_mock.CommandNotFound.return_value = Mock(getPackages=get_packages)
-    assert match(command, None)
+    assert match(command)
     assert cmdnf_mock.CommandNotFound.called
     assert get_packages.called
 
@@ -32,7 +32,7 @@ def test_match_mocked(cmdnf_mock, command, return_value):
 @pytest.mark.parametrize('command', [
     Command(script='vim', stderr=''), Command()])
 def test_not_match(command):
-    assert not match(command, None)
+    assert not match(command)
 
 
 # python-commandnotfound is available in ubuntu 14.04+
@@ -44,7 +44,7 @@ def test_not_match(command):
     (Command('sudo vim'), 'sudo apt-get install vim && sudo vim'),
     (Command('sudo convert'), 'sudo apt-get install imagemagick && sudo convert')])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command
 
 
 @pytest.mark.parametrize('command, new_command, return_value', [
@@ -63,4 +63,4 @@ def test_get_new_command(command, new_command):
 def test_get_new_command_mocked(cmdnf_mock, command, new_command, return_value):
     get_packages = Mock(return_value=return_value)
     cmdnf_mock.CommandNotFound.return_value = Mock(getPackages=get_packages)
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command

tests/rules/test_apt_get_search.py

@@ -4,7 +4,7 @@ from tests.utils import Command
 
 
 def test_match():
-    assert match(Command('apt-get search foo'), None)
+    assert match(Command('apt-get search foo'))
 
 
 @pytest.mark.parametrize('command', [
@@ -18,8 +18,8 @@ def test_match():
     Command('apt-get update')
 ])
 def test_not_match(command):
-    assert not match(command, None)
+    assert not match(command)
 
 
 def test_get_new_command():
-    assert get_new_command(Command('apt-get search foo'), None) == 'apt-cache search foo'
+    assert get_new_command(Command('apt-get search foo')) == 'apt-cache search foo'

tests/rules/test_brew_install.py

@@ -28,9 +28,9 @@ def _is_not_okay_to_test():
 def test_match(brew_no_available_formula, brew_already_installed,
                brew_install_no_argument):
     assert match(Command('brew install elsticsearch',
-                         stderr=brew_no_available_formula), None)
+                         stderr=brew_no_available_formula))
     assert not match(Command('brew install git',
-                             stderr=brew_already_installed), None)
+                             stderr=brew_already_installed))
     assert not match(Command('brew install', stderr=brew_install_no_argument),
                      None)
 
@@ -39,7 +39,7 @@ def test_match(brew_no_available_formula, brew_already_installed,
                     reason='No need to run if there\'s no formula')
 def test_get_new_command(brew_no_available_formula):
     assert get_new_command(Command('brew install elsticsearch',
-                                   stderr=brew_no_available_formula), None)\
+                                   stderr=brew_no_available_formula))\
         == 'brew install elasticsearch'
 
     assert get_new_command(Command('brew install aa',

tests/rules/test_brew_unknown_command.py

@@ -15,15 +15,15 @@ def brew_unknown_cmd2():
 
 
 def test_match(brew_unknown_cmd):
-    assert match(Command('brew inst', stderr=brew_unknown_cmd), None)
+    assert match(Command('brew inst', stderr=brew_unknown_cmd))
     for command in _brew_commands():
-        assert not match(Command('brew ' + command), None)
+        assert not match(Command('brew ' + command))
 
 
 def test_get_new_command(brew_unknown_cmd, brew_unknown_cmd2):
-    assert get_new_command(Command('brew inst', stderr=brew_unknown_cmd),
-                           None) == ['brew list', 'brew install', 'brew uninstall']
+    assert get_new_command(Command('brew inst', stderr=brew_unknown_cmd)) \
+           == ['brew list', 'brew install', 'brew uninstall']
 
-    cmds = get_new_command(Command('brew instaa', stderr=brew_unknown_cmd2), None)
+    cmds = get_new_command(Command('brew instaa', stderr=brew_unknown_cmd2))
     assert 'brew install' in cmds
     assert 'brew uninstall' in cmds

tests/rules/test_brew_upgrade.py

@@ -6,10 +6,10 @@ from tests.utils import Command
 @pytest.mark.parametrize('command', [
     Command(script='brew upgrade')])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command, new_command', [
     (Command('brew upgrade'), 'brew upgrade --all')])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command

tests/rules/test_cargo_no_command.py

@@ -12,10 +12,10 @@ no_such_subcommand = """No such subcommand
 @pytest.mark.parametrize('command', [
     Command(script='cargo buid', stderr=no_such_subcommand)])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command, new_command', [
     (Command('cargo buid', stderr=no_such_subcommand), 'cargo build')])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command

tests/rules/test_cd_correct.py

@@ -1,5 +1,5 @@
 import pytest
-from thefuck.rules.cd_mkdir import match, get_new_command
+from thefuck.rules.cd_correction import match, get_new_command
 from tests.utils import Command
 
 
@@ -9,17 +9,17 @@ from tests.utils import Command
             stderr='cd: foo: No such file or directory'),
     Command(script='cd foo/bar/baz', stderr='cd: can\'t cd to foo/bar/baz')])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command', [
     Command(script='cd foo', stderr=''), Command()])
 def test_not_match(command):
-    assert not match(command, None)
+    assert not match(command)
 
 
 @pytest.mark.parametrize('command, new_command', [
     (Command('cd foo'), 'mkdir -p foo && cd foo'),
     (Command('cd foo/bar/baz'), 'mkdir -p foo/bar/baz && cd foo/bar/baz')])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command

tests/rules/test_cd_parent.py

@@ -3,10 +3,10 @@ from tests.utils import Command
 
 
 def test_match():
-    assert match(Command('cd..', stderr='cd..: command not found'), None)
-    assert not match(Command(), None)
+    assert match(Command('cd..', stderr='cd..: command not found'))
+    assert not match(Command())
 
 
 def test_get_new_command():
     assert get_new_command(
-        Command('cd..'), None) == 'cd ..'
+        Command('cd..')) == 'cd ..'

tests/rules/test_composer_not_command.py

@@ -41,17 +41,16 @@ def composer_not_command_one_of_this():
 
 def test_match(composer_not_command, composer_not_command_one_of_this):
     assert match(Command('composer udpate',
-                         stderr=composer_not_command), None)
+                         stderr=composer_not_command))
     assert match(Command('composer pdate',
-                         stderr=composer_not_command_one_of_this), None)
-    assert not match(Command('ls update', stderr=composer_not_command),
-                     None)
+                         stderr=composer_not_command_one_of_this))
+    assert not match(Command('ls update', stderr=composer_not_command))
 
 
 def test_get_new_command(composer_not_command, composer_not_command_one_of_this):
     assert get_new_command(Command('composer udpate',
-                                   stderr=composer_not_command), None) \
+                                   stderr=composer_not_command)) \
            == 'composer update'
     assert get_new_command(
-        Command('composer pdate', stderr=composer_not_command_one_of_this),
-        None) == 'composer selfupdate'
+        Command('composer pdate', stderr=composer_not_command_one_of_this)) \
+           == 'composer selfupdate'

tests/rules/test_cp_omitting_directory.py

@@ -7,7 +7,7 @@ from tests.utils import Command
     ('cp dir', 'cp: dor: is a directory'),
     ('cp dir', "cp: omitting directory 'dir'")])
 def test_match(script, stderr):
-    assert match(Command(script, stderr=stderr), None)
+    assert match(Command(script, stderr=stderr))
 
 
 @pytest.mark.parametrize('script, stderr', [
@@ -15,8 +15,8 @@ def test_match(script, stderr):
     ('some dir', "cp: omitting directory 'dir'"),
     ('cp dir', '')])
 def test_not_match(script, stderr):
-    assert not match(Command(script, stderr=stderr), None)
+    assert not match(Command(script, stderr=stderr))
 
 
 def test_get_new_command():
-    assert get_new_command(Command(script='cp dir'), None) == 'cp -a dir'
+    assert get_new_command(Command(script='cp dir')) == 'cp -a dir'

tests/rules/test_dirty_untar.py

@@ -11,8 +11,9 @@ def tar_error(tmpdir):
         path = os.path.join(str(tmpdir), filename)
 
         def reset(path):
+            os.mkdir('d')
             with tarfile.TarFile(path, 'w') as archive:
-                for file in ('a', 'b', 'c'):
+                for file in ('a', 'b', 'c', 'd/e'):
                     with open(file, 'w') as f:
                         f.write('*')
 
@@ -26,7 +27,8 @@ def tar_error(tmpdir):
         os.chdir(str(tmpdir))
         reset(path)
 
-        assert(set(os.listdir('.')) == {filename, 'a', 'b', 'c'})
+        assert set(os.listdir('.')) == {filename, 'a', 'b', 'c', 'd'}
+        assert set(os.listdir('./d')) == {'e'}
 
     return fixture
 
@@ -45,19 +47,19 @@ parametrize_script = pytest.mark.parametrize('script, fixed', [
 @parametrize_script
 def test_match(tar_error, filename, script, fixed):
     tar_error(filename)
-    assert match(Command(script=script.format(filename)), None)
+    assert match(Command(script=script.format(filename)))
 
 
 @parametrize_filename
 @parametrize_script
 def test_side_effect(tar_error, filename, script, fixed):
     tar_error(filename)
-    side_effect(Command(script=script.format(filename)), None, None)
-    assert(os.listdir('.') == [filename])
+    side_effect(Command(script=script.format(filename)), None)
+    assert set(os.listdir('.')) == {filename, 'd'}
 
 
 @parametrize_filename
 @parametrize_script
 def test_get_new_command(tar_error, filename, script, fixed):
     tar_error(filename)
-    assert get_new_command(Command(script=script.format(filename)), None) == fixed.format(filename)
+    assert get_new_command(Command(script=script.format(filename))) == fixed.format(filename)

tests/rules/test_dirty_unzip.py

@@ -15,31 +15,34 @@ def zip_error(tmpdir):
             archive.writestr('b', '2')
             archive.writestr('c', '3')
 
+            archive.writestr('d/e', '4')
+
             archive.extractall()
 
     os.chdir(str(tmpdir))
     reset(path)
 
-    assert(set(os.listdir('.')) == {'foo.zip', 'a', 'b', 'c'})
+    assert set(os.listdir('.')) == {'foo.zip', 'a', 'b', 'c', 'd'}
+    assert set(os.listdir('./d')) == {'e'}
 
 
 @pytest.mark.parametrize('script', [
     'unzip foo',
     'unzip foo.zip'])
 def test_match(zip_error, script):
-    assert match(Command(script=script), None)
+    assert match(Command(script=script))
 
 
 @pytest.mark.parametrize('script', [
     'unzip foo',
     'unzip foo.zip'])
 def test_side_effect(zip_error, script):
-    side_effect(Command(script=script), None, None)
-    assert(os.listdir('.') == ['foo.zip'])
+    side_effect(Command(script=script), None)
+    assert set(os.listdir('.')) == {'foo.zip', 'd'}
 
 
 @pytest.mark.parametrize('script,fixed', [
     ('unzip foo', 'unzip foo -d foo'),
     ('unzip foo.zip', 'unzip foo.zip -d foo')])
 def test_get_new_command(zip_error, script, fixed):
-    assert get_new_command(Command(script=script), None) == fixed
+    assert get_new_command(Command(script=script)) == fixed

tests/rules/test_django_south_ghost.py

@@ -41,13 +41,13 @@ south.exceptions.GhostMigrations:
 
 
 def test_match(stderr):
-    assert match(Command('./manage.py migrate', stderr=stderr), None)
-    assert match(Command('python manage.py migrate', stderr=stderr), None)
-    assert not match(Command('./manage.py migrate'), None)
-    assert not match(Command('app migrate', stderr=stderr), None)
-    assert not match(Command('./manage.py test', stderr=stderr), None)
+    assert match(Command('./manage.py migrate', stderr=stderr))
+    assert match(Command('python manage.py migrate', stderr=stderr))
+    assert not match(Command('./manage.py migrate'))
+    assert not match(Command('app migrate', stderr=stderr))
+    assert not match(Command('./manage.py test', stderr=stderr))
 
 
 def test_get_new_command():
-    assert get_new_command(Command('./manage.py migrate auth'), None)\
+    assert get_new_command(Command('./manage.py migrate auth'))\
         == './manage.py migrate auth --delete-ghost-migrations'

tests/rules/test_django_south_merge.py

@@ -31,13 +31,13 @@ The following options are available:
 
 
 def test_match(stderr):
-    assert match(Command('./manage.py migrate', stderr=stderr), None)
-    assert match(Command('python manage.py migrate', stderr=stderr), None)
-    assert not match(Command('./manage.py migrate'), None)
-    assert not match(Command('app migrate', stderr=stderr), None)
-    assert not match(Command('./manage.py test', stderr=stderr), None)
+    assert match(Command('./manage.py migrate', stderr=stderr))
+    assert match(Command('python manage.py migrate', stderr=stderr))
+    assert not match(Command('./manage.py migrate'))
+    assert not match(Command('app migrate', stderr=stderr))
+    assert not match(Command('./manage.py test', stderr=stderr))
 
 
 def test_get_new_command():
-    assert get_new_command(Command('./manage.py migrate auth'), None) \
+    assert get_new_command(Command('./manage.py migrate auth')) \
            == './manage.py migrate auth --merge'

tests/rules/test_docker_not_command.py

@@ -110,14 +110,14 @@ def stderr(cmd):
 
 
 def test_match():
-    assert match(Command('docker pes', stderr=stderr('pes')), None)
+    assert match(Command('docker pes', stderr=stderr('pes')))
 
 
 @pytest.mark.parametrize('script, stderr', [
     ('docker ps', ''),
     ('cat pes', stderr('pes'))])
 def test_not_match(script, stderr):
-    assert not match(Command(script, stderr=stderr), None)
+    assert not match(Command(script, stderr=stderr))
 
 
 @pytest.mark.usefixtures('docker_help')
@@ -126,4 +126,4 @@ def test_not_match(script, stderr):
     ('tags', ['tag', 'stats', 'images'])])
 def test_get_new_command(wrong, fixed):
     command = Command('docker {}'.format(wrong), stderr=stderr(wrong))
-    assert get_new_command(command, None) == ['docker {}'.format(x) for x in fixed]
+    assert get_new_command(command) == ['docker {}'.format(x) for x in fixed]

tests/rules/test_dry.py

@@ -7,11 +7,11 @@ from tests.utils import Command
     Command(script='cd cd foo'),
     Command(script='git git push origin/master')])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command, new_command', [
     (Command('cd cd foo'), 'cd foo'),
     (Command('git git push origin/master'), 'git push origin/master')])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command

tests/rules/test_fix_alt_space.py

@@ -11,12 +11,12 @@ def test_match():
 
     """
     assert match(Command(u'ps -ef | grep foo',
-                         stderr=u'-bash:  grep: command not found'), None)
-    assert not match(Command('ps -ef | grep foo'), None)
-    assert not match(Command(), None)
+                         stderr=u'-bash:  grep: command not found'))
+    assert not match(Command('ps -ef | grep foo'))
+    assert not match(Command())
 
 
 def test_get_new_command():
     """ Replace the Alt+Space character by a simple space """
-    assert get_new_command(Command(u'ps -ef | grep foo'), None)\
+    assert get_new_command(Command(u'ps -ef | grep foo'))\
            == 'ps -ef | grep foo'

tests/rules/test_fix_file.py

@@ -2,7 +2,6 @@ import pytest
 import os
 from thefuck.rules.fix_file import match, get_new_command
 from tests.utils import Command
-from thefuck.types import Settings
 
 
 # (script, file, line, col (or None), stdout, stderr)
@@ -184,7 +183,7 @@ E       NameError: name 'mocker' is not defined
 def test_match(mocker, monkeypatch, test):
     mocker.patch('os.path.isfile', return_value=True)
     monkeypatch.setenv('EDITOR', 'dummy_editor')
-    assert match(Command(stdout=test[4], stderr=test[5]), None)
+    assert match(Command(stdout=test[4], stderr=test[5]))
 
 
 @pytest.mark.parametrize('test', tests)
@@ -194,7 +193,7 @@ def test_no_editor(mocker, monkeypatch, test):
     if 'EDITOR' in os.environ:
         monkeypatch.delenv('EDITOR')
 
-    assert not match(Command(stdout=test[4], stderr=test[5]), None)
+    assert not match(Command(stdout=test[4], stderr=test[5]))
 
 
 @pytest.mark.parametrize('test', tests)
@@ -203,7 +202,7 @@ def test_not_file(mocker, monkeypatch, test):
     mocker.patch('os.path.isfile', return_value=False)
     monkeypatch.setenv('EDITOR', 'dummy_editor')
 
-    assert not match(Command(stdout=test[4], stderr=test[5]), None)
+    assert not match(Command(stdout=test[4], stderr=test[5]))
 
 
 @pytest.mark.parametrize('test', tests)
@@ -219,16 +218,16 @@ def test_get_new_command(mocker, monkeypatch, test):
 
 @pytest.mark.parametrize('test', tests)
 @pytest.mark.usefixtures('no_memoize')
-def test_get_new_command_with_settings(mocker, monkeypatch, test):
+def test_get_new_command_with_settings(mocker, monkeypatch, test, settings):
     mocker.patch('os.path.isfile', return_value=True)
     monkeypatch.setenv('EDITOR', 'dummy_editor')
 
     cmd = Command(script=test[0], stdout=test[4], stderr=test[5])
-    settings = Settings({'fixcolcmd': '{editor} {file} +{line}:{col}'})
+    settings.fixcolcmd = '{editor} {file} +{line}:{col}'
 
     if test[3]:
-        assert (get_new_command(cmd, settings) ==
+        assert (get_new_command(cmd) ==
             'dummy_editor {} +{}:{} && {}'.format(test[1], test[2], test[3], test[0]))
     else:
-        assert (get_new_command(cmd, settings) ==
+        assert (get_new_command(cmd) ==
             'dummy_editor {} +{} && {}'.format(test[1], test[2], test[0]))

tests/rules/test_git_add.py

@@ -18,7 +18,7 @@ def did_not_match(target, did_you_forget=True):
     Command(script='git commit unknown',
             stderr=did_not_match('unknown'))])  # Older versions of Git
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command', [
@@ -27,7 +27,7 @@ def test_match(command):
     Command(script='git commit unknown',  # Newer versions of Git
             stderr=did_not_match('unknown', False))])
 def test_not_match(command):
-    assert not match(command, None)
+    assert not match(command)
 
 
 @pytest.mark.parametrize('command, new_command', [
@@ -36,4 +36,4 @@ def test_not_match(command):
     (Command('git commit unknown', stderr=did_not_match('unknown')),  # Old Git
      'git add -- unknown && git commit unknown')])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command

tests/rules/test_git_branch_delete.py

@@ -12,11 +12,11 @@ If you are sure you want to delete it, run 'git branch -D branch'.
 
 
 def test_match(stderr):
-    assert match(Command('git branch -d branch', stderr=stderr), None)
-    assert not match(Command('git branch -d branch'), None)
-    assert not match(Command('ls', stderr=stderr), None)
+    assert match(Command('git branch -d branch', stderr=stderr))
+    assert not match(Command('git branch -d branch'))
+    assert not match(Command('ls', stderr=stderr))
 
 
 def test_get_new_command(stderr):
-    assert get_new_command(Command('git branch -d branch', stderr=stderr), None)\
+    assert get_new_command(Command('git branch -d branch', stderr=stderr))\
         == "git branch -D branch"

tests/rules/test_git_branch_list.py

@@ -4,16 +4,16 @@ from tests.utils import Command
 
 
 def test_match():
-    assert match(Command('git branch list'), None)
+    assert match(Command('git branch list'))
 
 
 def test_not_match():
-    assert not match(Command(), None)
-    assert not match(Command('git commit'), None)
-    assert not match(Command('git branch'), None)
-    assert not match(Command('git stash list'), None)
+    assert not match(Command())
+    assert not match(Command('git commit'))
+    assert not match(Command('git branch'))
+    assert not match(Command('git stash list'))
 
 
 def test_get_new_command():
-    assert (get_new_command(Command('git branch list'), None) ==
+    assert (get_new_command(Command('git branch list')) ==
             shells.and_('git branch --delete list', 'git branch'))

tests/rules/test_git_checkout.py

@@ -21,7 +21,7 @@ def get_branches(mocker):
     Command(script='git checkout unknown', stderr=did_not_match('unknown')),
     Command(script='git commit unknown', stderr=did_not_match('unknown'))])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command', [
@@ -30,7 +30,7 @@ def test_match(command):
     Command(script='git checkout known', stderr=('')),
     Command(script='git commit known', stderr=(''))])
 def test_not_match(command):
-    assert not match(command, None)
+    assert not match(command)
 
 
 @pytest.mark.parametrize('branches, command, new_command', [
@@ -50,4 +50,4 @@ def test_not_match(command):
      'git commit test-random-branch-123')])
 def test_get_new_command(branches, command, new_command, get_branches):
     get_branches.return_value = branches
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command

tests/rules/test_git_diff_staged.py

@@ -7,7 +7,7 @@ from tests.utils import Command
     Command(script='git diff foo'),
     Command(script='git diff')])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command', [
@@ -16,11 +16,11 @@ def test_match(command):
     Command(script='git branch'),
     Command(script='git log')])
 def test_not_match(command):
-    assert not match(command, None)
+    assert not match(command)
 
 
 @pytest.mark.parametrize('command, new_command', [
     (Command('git diff'), 'git diff --staged'),
     (Command('git diff foo'), 'git diff --staged foo')])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command

tests/rules/test_git_fix_stash.py

@@ -20,7 +20,11 @@ usage: git stash list [<options>]
     'git stash Some message',
     'git stash saev Some message'])
 def test_match(wrong):
-    assert match(Command(wrong, stderr=git_stash_err), None)
+    assert match(Command(wrong, stderr=git_stash_err))
+
+
+def test_not_match():
+    assert not match(Command("git", stderr=git_stash_err))
 
 
 @pytest.mark.parametrize('wrong,fixed', [
@@ -28,4 +32,4 @@ def test_match(wrong):
     ('git stash Some message', 'git stash save Some message'),
     ('git stash saev Some message', 'git stash save Some message')])
 def test_get_new_command(wrong, fixed):
-    assert get_new_command(Command(wrong, stderr=git_stash_err), None) == fixed
+    assert get_new_command(Command(wrong, stderr=git_stash_err)) == fixed

tests/rules/test_git_not_command.py

@@ -41,17 +41,17 @@ def git_command():
 
 
 def test_match(git_not_command, git_command, git_not_command_one_of_this):
-    assert match(Command('git brnch', stderr=git_not_command), None)
-    assert match(Command('git st', stderr=git_not_command_one_of_this), None)
-    assert not match(Command('ls brnch', stderr=git_not_command), None)
-    assert not match(Command('git branch', stderr=git_command), None)
+    assert match(Command('git brnch', stderr=git_not_command))
+    assert match(Command('git st', stderr=git_not_command_one_of_this))
+    assert not match(Command('ls brnch', stderr=git_not_command))
+    assert not match(Command('git branch', stderr=git_command))
 
 
 def test_get_new_command(git_not_command, git_not_command_one_of_this,
                          git_not_command_closest):
-    assert get_new_command(Command('git brnch', stderr=git_not_command), None) \
+    assert get_new_command(Command('git brnch', stderr=git_not_command)) \
            == ['git branch']
-    assert get_new_command(Command('git st', stderr=git_not_command_one_of_this),
-                           None) == ['git stats', 'git stash', 'git stage']
-    assert get_new_command(Command('git tags', stderr=git_not_command_closest),
-                           None) == ['git tag', 'git stage']
+    assert get_new_command(Command('git st', stderr=git_not_command_one_of_this)) \
+           == ['git stats', 'git stash', 'git stage']
+    assert get_new_command(Command('git tags', stderr=git_not_command_closest)) \
+           == ['git tag', 'git stage']

tests/rules/test_git_pull.py

@@ -19,11 +19,11 @@ If you wish to set tracking information for this branch you can do so with:
 
 
 def test_match(stderr):
-    assert match(Command('git pull', stderr=stderr), None)
-    assert not match(Command('git pull'), None)
-    assert not match(Command('ls', stderr=stderr), None)
+    assert match(Command('git pull', stderr=stderr))
+    assert not match(Command('git pull'))
+    assert not match(Command('ls', stderr=stderr))
 
 
 def test_get_new_command(stderr):
-    assert get_new_command(Command('git pull', stderr=stderr), None) \
+    assert get_new_command(Command('git pull', stderr=stderr)) \
            == "git branch --set-upstream-to=origin/master master && git pull"

tests/rules/test_git_pull_clone.py

@@ -12,10 +12,10 @@ Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).
 @pytest.mark.parametrize('command', [
     Command(script='git pull git@github.com:mcarton/thefuck.git', stderr=git_err)])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command, output', [
     (Command(script='git pull git@github.com:mcarton/thefuck.git', stderr=git_err), 'git clone git@github.com:mcarton/thefuck.git')])
 def test_get_new_command(command, output):
-    assert get_new_command(command, None) == output
+    assert get_new_command(command) == output

tests/rules/test_git_push.py

@@ -14,11 +14,11 @@ To push the current branch and set the remote as upstream, use
 
 
 def test_match(stderr):
-    assert match(Command('git push master', stderr=stderr), None)
-    assert not match(Command('git push master'), None)
-    assert not match(Command('ls', stderr=stderr), None)
+    assert match(Command('git push master', stderr=stderr))
+    assert not match(Command('git push master'))
+    assert not match(Command('ls', stderr=stderr))
 
 
 def test_get_new_command(stderr):
-    assert get_new_command(Command('git push', stderr=stderr), None)\
+    assert get_new_command(Command('git push', stderr=stderr))\
         == "git push --set-upstream origin master"

tests/rules/test_git_push_force.py

@@ -30,7 +30,7 @@ To /tmp/bar
     Command(script='git push nvbn', stderr=git_err),
     Command(script='git push nvbn master', stderr=git_err)])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command', [
@@ -41,7 +41,7 @@ def test_match(command):
     Command(script='git push nvbn', stderr=git_ok),
     Command(script='git push nvbn master', stderr=git_uptodate)])
 def test_not_match(command):
-    assert not match(command, None)
+    assert not match(command)
 
 
 @pytest.mark.parametrize('command, output', [
@@ -49,4 +49,4 @@ def test_not_match(command):
     (Command(script='git push nvbn', stderr=git_err), 'git push --force nvbn'),
     (Command(script='git push nvbn master', stderr=git_err), 'git push --force nvbn master')])
 def test_get_new_command(command, output):
-    assert get_new_command(command, None) == output
+    assert get_new_command(command) == output

tests/rules/test_git_push_pull.py

@@ -30,7 +30,7 @@ To /tmp/bar
     Command(script='git push nvbn', stderr=git_err),
     Command(script='git push nvbn master', stderr=git_err)])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command', [
@@ -41,7 +41,7 @@ def test_match(command):
     Command(script='git push nvbn', stderr=git_ok),
     Command(script='git push nvbn master', stderr=git_uptodate)])
 def test_not_match(command):
-    assert not match(command, None)
+    assert not match(command)
 
 
 @pytest.mark.parametrize('command, output', [
@@ -51,4 +51,4 @@ def test_not_match(command):
     (Command(script='git push nvbn master', stderr=git_err),
      'git pull nvbn master && git push nvbn master')])
 def test_get_new_command(command, output):
-    assert get_new_command(command, None) == output
+    assert get_new_command(command) == output

tests/rules/test_git_stash.py

@@ -18,14 +18,14 @@ rebase_error = (
     Command(script='git cherry-pick a1b2c3d', stderr=cherry_pick_error),
     Command(script='git rebase -i HEAD~7', stderr=rebase_error)])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command', [
     Command(script='git cherry-pick a1b2c3d', stderr=('')),
     Command(script='git rebase -i HEAD~7', stderr=(''))])
 def test_not_match(command):
-    assert not match(command, None)
+    assert not match(command)
 
 
 @pytest.mark.parametrize('command, new_command', [
@@ -34,4 +34,4 @@ def test_not_match(command):
     (Command('git rebase -i HEAD~7', stderr=rebase_error),
      'git stash && git rebase -i HEAD~7')])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command

tests/rules/test_go_run.py

@@ -7,11 +7,11 @@ from tests.utils import Command
     Command(script='go run foo'),
     Command(script='go run bar')])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command, new_command', [
     (Command('go run foo'), 'go run foo.go'),
     (Command('go run bar'), 'go run bar.go')])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command

tests/rules/test_grep_recursive.py

@@ -3,10 +3,10 @@ from tests.utils import Command
 
 
 def test_match():
-    assert match(Command('grep blah .', stderr='grep: .: Is a directory'), None)
-    assert not match(Command(), None)
+    assert match(Command('grep blah .', stderr='grep: .: Is a directory'))
+    assert not match(Command())
 
 
 def test_get_new_command():
     assert get_new_command(
-        Command('grep blah .'), None) == 'grep -r blah .'
+        Command('grep blah .')) == 'grep -r blah .'

tests/rules/test_gulp_not_task.py

@@ -11,18 +11,18 @@ def stdout(task):
 
 
 def test_match():
-    assert match(Command('gulp srve', stdout('srve')), None)
+    assert match(Command('gulp srve', stdout('srve')))
 
 
 @pytest.mark.parametrize('script, stdout', [
     ('gulp serve', ''),
     ('cat srve', stdout('srve'))])
 def test_not_march(script, stdout):
-    assert not match(Command(script, stdout), None)
+    assert not match(Command(script, stdout))
 
 
 def test_get_new_command(mocker):
     mocker.patch('thefuck.rules.gulp_not_task.get_gulp_tasks', return_value=[
         'serve', 'build', 'default'])
     command = Command('gulp srve', stdout('srve'))
-    assert get_new_command(command, None) == ['gulp serve', 'gulp default']
+    assert get_new_command(command) == ['gulp serve', 'gulp default']

tests/rules/test_has_exists_script.py

@@ -4,17 +4,14 @@ from thefuck.rules.has_exists_script import match, get_new_command
 
 def test_match():
     with patch('os.path.exists', return_value=True):
-        assert match(Mock(script='main', stderr='main: command not found'),
-                     None)
+        assert match(Mock(script='main', stderr='main: command not found'))
         assert match(Mock(script='main --help',
-                          stderr='main: command not found'),
-                     None)
-        assert not match(Mock(script='main', stderr=''), None)
+                          stderr='main: command not found'))
+        assert not match(Mock(script='main', stderr=''))
 
     with patch('os.path.exists', return_value=False):
-        assert not match(Mock(script='main', stderr='main: command not found'),
-                         None)
+        assert not match(Mock(script='main', stderr='main: command not found'))
 
 
 def test_get_new_command():
-    assert get_new_command(Mock(script='main --help'), None) == './main --help'
+    assert get_new_command(Mock(script='main --help')) == './main --help'

tests/rules/test_heroku_not_command.py

@@ -16,14 +16,14 @@ no_suggest_stderr = ''' !    `aaaaa` is not a heroku command.
 @pytest.mark.parametrize('cmd', ['log', 'pge'])
 def test_match(cmd):
     assert match(
-        Command('heroku {}'.format(cmd), stderr=suggest_stderr(cmd)), None)
+        Command('heroku {}'.format(cmd), stderr=suggest_stderr(cmd)))
 
 
 @pytest.mark.parametrize('script, stderr', [
     ('cat log', suggest_stderr('log')),
     ('heroku aaa', no_suggest_stderr)])
 def test_not_match(script, stderr):
-    assert not match(Command(script, stderr=stderr), None)
+    assert not match(Command(script, stderr=stderr))
 
 
 @pytest.mark.parametrize('cmd, result', [
@@ -31,4 +31,4 @@ def test_not_match(script, stderr):
     ('pge', ['heroku pg', 'heroku logs'])])
 def test_get_new_command(cmd, result):
     command = Command('heroku {}'.format(cmd), stderr=suggest_stderr(cmd))
-    assert get_new_command(command, None) == result
+    assert get_new_command(command) == result

tests/rules/test_history.py

@@ -25,13 +25,13 @@ def callables(mocker):
 @pytest.mark.usefixtures('history', 'callables', 'no_memoize', 'alias')
 @pytest.mark.parametrize('script', ['ls cet', 'daff x'])
 def test_match(script):
-    assert match(Command(script=script), None)
+    assert match(Command(script=script))
 
 
 @pytest.mark.usefixtures('history', 'callables', 'no_memoize', 'alias')
 @pytest.mark.parametrize('script', ['apt-get', 'nocommand y'])
 def test_not_match(script):
-    assert not match(Command(script=script), None)
+    assert not match(Command(script=script))
 
 
 @pytest.mark.usefixtures('history', 'callables', 'no_memoize', 'alias')
@@ -39,4 +39,4 @@ def test_not_match(script):
     ('ls cet', 'ls cat'),
     ('daff x', 'diff x')])
 def test_get_new_command(script, result):
-    assert get_new_command(Command(script), None) == result
+    assert get_new_command(Command(script)) == result

tests/rules/test_java.py

@@ -7,11 +7,11 @@ from tests.utils import Command
     Command(script='java foo.java'),
     Command(script='java bar.java')])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command, new_command', [
     (Command('java foo.java'), 'java foo'),
     (Command('java bar.java'), 'java bar')])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command

tests/rules/test_javac.py

@@ -7,11 +7,11 @@ from tests.utils import Command
     Command(script='javac foo'),
     Command(script='javac bar')])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command, new_command', [
     (Command('javac foo'), 'javac foo.java'),
     (Command('javac bar'), 'javac bar.java')])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command

tests/rules/test_lein_not_task.py

@@ -14,10 +14,10 @@ Did you mean this?
 
 
 def test_match(is_not_task):
-    assert match(Command(script='lein rpl', stderr=is_not_task), None)
-    assert not match(Command(script='ls', stderr=is_not_task), None)
+    assert match(Command(script='lein rpl', stderr=is_not_task))
+    assert not match(Command(script='ls', stderr=is_not_task))
 
 
 def test_get_new_command(is_not_task):
-    assert get_new_command(Command(script='lein rpl --help', stderr=is_not_task),
-                           None) == ['lein repl --help', 'lein jar --help']
+    assert get_new_command(Command(script='lein rpl --help', stderr=is_not_task)) \
+           == ['lein repl --help', 'lein jar --help']

tests/rules/test_ls_lah.py

@@ -3,14 +3,14 @@ from tests.utils import Command
 
 
 def test_match():
-    assert match(Command(script='ls'), None)
-    assert match(Command(script='ls file.py'), None)
-    assert match(Command(script='ls /opt'), None)
-    assert not match(Command(script='ls -lah /opt'), None)
-    assert not match(Command(script='pacman -S binutils'), None)
-    assert not match(Command(script='lsof'), None)
+    assert match(Command(script='ls'))
+    assert match(Command(script='ls file.py'))
+    assert match(Command(script='ls /opt'))
+    assert not match(Command(script='ls -lah /opt'))
+    assert not match(Command(script='pacman -S binutils'))
+    assert not match(Command(script='lsof'))
 
 
 def test_get_new_command():
-    assert get_new_command(Command(script='ls file.py'), None) == 'ls -lah file.py'
-    assert get_new_command(Command(script='ls'), None) == 'ls -lah'
+    assert get_new_command(Command(script='ls file.py')) == 'ls -lah file.py'
+    assert get_new_command(Command(script='ls')) == 'ls -lah'

tests/rules/test_man.py

@@ -12,14 +12,14 @@ from tests.utils import Command
     Command('man -s 2 read'),
     Command('man -s 3 read')])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command', [
     Command('man'),
     Command('man ')])
 def test_not_match(command):
-    assert not match(command, None)
+    assert not match(command)
 
 
 @pytest.mark.parametrize('command, new_command', [
@@ -31,4 +31,4 @@ def test_not_match(command):
     (Command('man -s 2 read'), 'man -s 3 read'),
     (Command('man -s 3 read'), 'man -s 2 read')])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command

tests/rules/test_man_no_space.py

@@ -3,10 +3,10 @@ from tests.utils import Command
 
 
 def test_match():
-    assert match(Command('mandiff', stderr='mandiff: command not found'), None)
-    assert not match(Command(), None)
+    assert match(Command('mandiff', stderr='mandiff: command not found'))
+    assert not match(Command())
 
 
 def test_get_new_command():
     assert get_new_command(
-        Command('mandiff'), None) == 'man diff'
+        Command('mandiff')) == 'man diff'

tests/rules/test_mercurial.py

@@ -37,7 +37,7 @@ from thefuck.rules.mercurial import (
     )),
 ])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command', [
@@ -63,7 +63,7 @@ def test_match(command):
     )),
 ])
 def test_not_match(command):
-    assert not match(command, None)
+    assert not match(command)
 
 
 @pytest.mark.parametrize('command, possibilities', [
@@ -131,4 +131,4 @@ def test_extract_possibilities(command, possibilities):
     )), 'hg rebase re'),
 ])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command

tests/rules/test_mkdir_p.py

@@ -9,7 +9,7 @@ from tests.utils import Command
     Command('hdfs dfs -mkdir foo/bar/baz', stderr='mkdir: `foo/bar/baz\': No such file or directory')
     ])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command', [
@@ -19,7 +19,7 @@ def test_match(command):
     Command('./bin/hdfs dfs -mkdir foo/bar/baz'),
     Command()])
 def test_not_match(command):
-    assert not match(command, None)
+    assert not match(command)
 
 
 @pytest.mark.parametrize('command, new_command', [
@@ -27,5 +27,5 @@ def test_not_match(command):
     (Command('hdfs dfs -mkdir foo/bar/baz'), 'hdfs dfs -mkdir -p foo/bar/baz'),
     (Command('./bin/hdfs dfs -mkdir foo/bar/baz'), './bin/hdfs dfs -mkdir -p foo/bar/baz')])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command
 

tests/rules/test_mvn_no_command.py

@@ -6,7 +6,7 @@ from tests.utils import Command
 @pytest.mark.parametrize('command', [
     Command(script='mvn', stdout='[ERROR] No goals have been specified for this build. You must specify a valid lifecycle phase or a goal in the format <plugin-prefix>:<goal> or <plugin-group-id>:<plugin-artifact-id>[:<plugin-version>]:<goal>. Available lifecycle phases are: validate, initialize, generate-sources, process-sources, generate-resources, process-resources, compile, process-classes, generate-test-sources, process-test-sources, generate-test-resources, process-test-resources, test-compile, process-test-classes, test, prepare-package, package, pre-integration-test, integration-test, post-integration-test, verify, install, deploy, pre-clean, clean, post-clean, pre-site, site, post-site, site-deploy. -> [Help 1]')])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command', [
@@ -30,11 +30,11 @@ def test_match(command):
     Command(script='mvn -v')
 ])
 def test_not_match(command):
-    assert not match(command, None)
+    assert not match(command)
 
 @pytest.mark.parametrize('command, new_command', [
     (Command(script='mvn', stdout='[ERROR] No goals have been specified for this build. You must specify a valid lifecycle phase or a goal in the format <plugin-prefix>:<goal> or <plugin-group-id>:<plugin-artifact-id>[:<plugin-version>]:<goal>. Available lifecycle phases are: validate, initialize, generate-sources, process-sources, generate-resources, process-resources, compile, process-classes, generate-test-sources, process-test-sources, generate-test-resources, process-test-resources, test-compile, process-test-classes, test, prepare-package, package, pre-integration-test, integration-test, post-integration-test, verify, install, deploy, pre-clean, clean, post-clean, pre-site, site, post-site, site-deploy. -> [Help 1]'), ['mvn clean package', 'mvn clean install']),
     (Command(script='mvn -N', stdout='[ERROR] No goals have been specified for this build. You must specify a valid lifecycle phase or a goal in the format <plugin-prefix>:<goal> or <plugin-group-id>:<plugin-artifact-id>[:<plugin-version>]:<goal>. Available lifecycle phases are: validate, initialize, generate-sources, process-sources, generate-resources, process-resources, compile, process-classes, generate-test-sources, process-test-sources, generate-test-resources, process-test-resources, test-compile, process-test-classes, test, prepare-package, package, pre-integration-test, integration-test, post-integration-test, verify, install, deploy, pre-clean, clean, post-clean, pre-site, site, post-site, site-deploy. -> [Help 1]'), ['mvn -N clean package', 'mvn -N clean install'])])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command
 

tests/rules/test_mvn_unknown_lifecycle_phase.py

@@ -6,7 +6,7 @@ from tests.utils import Command
 @pytest.mark.parametrize('command', [
     Command(script='mvn cle', stdout='[ERROR] Unknown lifecycle phase "cle". You must specify a valid lifecycle phase or a goal in the format <plugin-prefix>:<goal> or <plugin-group-id>:<plugin-artifact-id>[:<plugin-version>]:<goal>. Available lifecycle phases are: validate, initialize, generate-sources, process-sources, generate-resources, process-resources, compile, process-classes, generate-test-sources, process-test-sources, generate-test-resources, process-test-resources, test-compile, process-test-classes, test, prepare-package, package, pre-integration-test, integration-test, post-integration-test, verify, install, deploy, pre-clean, clean, post-clean, pre-site, site, post-site, site-deploy. -> [Help 1]')])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command', [
@@ -30,11 +30,11 @@ def test_match(command):
     Command(script='mvn -v')
 ])
 def test_not_match(command):
-    assert not match(command, None)
+    assert not match(command)
 
 @pytest.mark.parametrize('command, new_command', [
     (Command(script='mvn cle', stdout='[ERROR] Unknown lifecycle phase "cle". You must specify a valid lifecycle phase or a goal in the format <plugin-prefix>:<goal> or <plugin-group-id>:<plugin-artifact-id>[:<plugin-version>]:<goal>. Available lifecycle phases are: validate, initialize, generate-sources, process-sources, generate-resources, process-resources, compile, process-classes, generate-test-sources, process-test-sources, generate-test-resources, process-test-resources, test-compile, process-test-classes, test, prepare-package, package, pre-integration-test, integration-test, post-integration-test, verify, install, deploy, pre-clean, clean, post-clean, pre-site, site, post-site, site-deploy. -> [Help 1]'), ['mvn clean', 'mvn compile']),
     (Command(script='mvn claen package', stdout='[ERROR] Unknown lifecycle phase "claen". You must specify a valid lifecycle phase or a goal in the format <plugin-prefix>:<goal> or <plugin-group-id>:<plugin-artifact-id>[:<plugin-version>]:<goal>. Available lifecycle phases are: validate, initialize, generate-sources, process-sources, generate-resources, process-resources, compile, process-classes, generate-test-sources, process-test-sources, generate-test-resources, process-test-resources, test-compile, process-test-classes, test, prepare-package, package, pre-integration-test, integration-test, post-integration-test, verify, install, deploy, pre-clean, clean, post-clean, pre-site, site, post-site, site-deploy. -> [Help 1]'), ['mvn clean package'])])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command
 

tests/rules/test_no_command.py

@@ -11,19 +11,17 @@ def get_all_executables(mocker):
 
 @pytest.mark.usefixtures('no_memoize')
 def test_match():
-    assert match(Command(stderr='vom: not found', script='vom file.py'), None)
-    assert match(Command(stderr='fucck: not found', script='fucck'), None)
-    assert not match(Command(stderr='qweqwe: not found', script='qweqwe'), None)
-    assert not match(Command(stderr='some text', script='vom file.py'), None)
+    assert match(Command(stderr='vom: not found', script='vom file.py'))
+    assert match(Command(stderr='fucck: not found', script='fucck'))
+    assert not match(Command(stderr='qweqwe: not found', script='qweqwe'))
+    assert not match(Command(stderr='some text', script='vom file.py'))
 
 
 @pytest.mark.usefixtures('no_memoize')
 def test_get_new_command():
     assert get_new_command(
         Command(stderr='vom: not found',
-                script='vom file.py'),
-        None) == ['vim file.py']
+                script='vom file.py')) == ['vim file.py']
     assert get_new_command(
         Command(stderr='fucck: not found',
-                script='fucck'),
-        Command) == ['fsck']
+                script='fucck')) == ['fsck']

tests/rules/test_no_such_file.py

@@ -8,7 +8,7 @@ from tests.utils import Command
     Command(script='mv foo bar/', stderr="mv: cannot move 'foo' to 'bar/': No such file or directory"),
     ])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command', [
@@ -16,7 +16,7 @@ def test_match(command):
     Command(script='mv foo bar/foo', stderr="mv: permission denied"),
     ])
 def test_not_match(command):
-    assert not match(command, None)
+    assert not match(command)
 
 
 @pytest.mark.parametrize('command, new_command', [
@@ -24,4 +24,4 @@ def test_not_match(command):
     (Command(script='mv foo bar/', stderr="mv: cannot move 'foo' to 'bar/': No such file or directory"), 'mkdir -p bar && mv foo bar/'),
     ])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command

tests/rules/test_open.py

@@ -14,7 +14,7 @@ from tests.utils import Command
     Command(script='gnome-open foo.com'),
     Command(script='kde-open foo.com')])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command, new_command', [
@@ -28,4 +28,4 @@ def test_match(command):
     (Command('gnome-open foo.io'), 'gnome-open http://foo.io'),
     (Command('kde-open foo.io'), 'kde-open http://foo.io')])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command

tests/rules/test_pacman.py

@@ -23,7 +23,7 @@ extra/vim-python3 7.4.712-1 \t/usr/bin/vim'''
     Command(script='vim', stderr='vim: command not found'),
     Command(script='sudo vim', stderr='sudo: vim: command not found')])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command, return_value', [
@@ -33,14 +33,14 @@ def test_match(command):
 @patch.multiple(pacman, create=True, pacman=pacman_cmd)
 def test_match_mocked(subp_mock, command, return_value):
     subp_mock.check_output.return_value = return_value
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command', [
     Command(script='vim', stderr=''), Command(),
     Command(script='sudo vim', stderr=''), Command()])
 def test_not_match(command):
-    assert not match(command, None)
+    assert not match(command)
 
 
 sudo_vim_possibilities = ['{} -S extra/gvim && sudo vim',
@@ -66,7 +66,7 @@ vim_possibilities = [s.format(pacman_cmd) for s in vim_possibilities]
     (Command('convert'), ['{} -S extra/imagemagick && convert'.format(pacman_cmd)]),
     (Command('sudo convert'), ['{} -S extra/imagemagick && sudo convert'.format(pacman_cmd)])])
 def test_get_new_command(command, new_command, mocker):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command
 
 
 @pytest.mark.parametrize('command, new_command, return_value', [
@@ -79,4 +79,4 @@ def test_get_new_command(command, new_command, mocker):
 @patch.multiple(pacman, create=True, pacman=pacman_cmd)
 def test_get_new_command_mocked(subp_mock, command, new_command, return_value):
     subp_mock.check_output.return_value = return_value
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command

tests/rules/test_pacman_not_found.py

@@ -15,7 +15,7 @@ extra/llvm35 3.5.2-13/usr/bin/llc'''
     Command(script='pacman llc', stderr='error: target not found: llc'),
     Command(script='sudo pacman llc', stderr='error: target not found: llc')])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command', [
@@ -25,7 +25,7 @@ def test_match(command):
 @patch('thefuck.specific.archlinux.subprocess')
 def test_match_mocked(subp_mock, command):
     subp_mock.check_output.return_value = PKGFILE_OUTPUT_LLC
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.skipif(not getattr(pacman_not_found, 'enabled_by_default', True),
@@ -35,7 +35,7 @@ def test_match_mocked(subp_mock, command):
     (Command(script='pacman -S llc', stderr='error: target not found: llc'), ['pacman -S extra/llvm', 'pacman -S extra/llvm35']),
     (Command(script='sudo pacman -S llc', stderr='error: target not found: llc'), ['sudo pacman -S extra/llvm', 'sudo pacman -S extra/llvm35'])])
 def test_get_new_command(command, fixed):
-    assert get_new_command(command, None) == fixed
+    assert get_new_command(command) == fixed
 
 
 @pytest.mark.parametrize('command, fixed', [
@@ -45,4 +45,4 @@ def test_get_new_command(command, fixed):
 @patch('thefuck.specific.archlinux.subprocess')
 def test_get_new_command_mocked(subp_mock, command, fixed):
     subp_mock.check_output.return_value = PKGFILE_OUTPUT_LLC
-    assert get_new_command(command, None) == fixed
+    assert get_new_command(command) == fixed

tests/rules/test_pip_unknown_command.py

@@ -14,12 +14,11 @@ def pip_unknown_cmd_without_recommend():
 
 
 def test_match(pip_unknown_cmd, pip_unknown_cmd_without_recommend):
-    assert match(Command('pip instatl', stderr=pip_unknown_cmd), None)
+    assert match(Command('pip instatl', stderr=pip_unknown_cmd))
     assert not match(Command('pip i',
-                             stderr=pip_unknown_cmd_without_recommend),
-                     None)
+                             stderr=pip_unknown_cmd_without_recommend))
 
 
 def test_get_new_command(pip_unknown_cmd):
-    assert get_new_command(Command('pip instatl', stderr=pip_unknown_cmd),
-                           None) == 'pip install'
+    assert get_new_command(Command('pip instatl',
+                                   stderr=pip_unknown_cmd)) == 'pip install'

tests/rules/test_python_command.py

@@ -3,10 +3,10 @@ from tests.utils import Command
 
 
 def test_match():
-    assert match(Command('temp.py', stderr='Permission denied'), None)
-    assert not match(Command(), None)
+    assert match(Command('temp.py', stderr='Permission denied'))
+    assert not match(Command())
 
 
 def test_get_new_command():
-    assert get_new_command(Command('./test_sudo.py'), None)\
+    assert get_new_command(Command('./test_sudo.py'))\
            == 'python ./test_sudo.py'

tests/rules/test_python_execute.py

@@ -7,11 +7,11 @@ from tests.utils import Command
     Command(script='python foo'),
     Command(script='python bar')])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command, new_command', [
     (Command('python foo'), 'python foo.py'),
     (Command('python bar'), 'python bar.py')])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command

tests/rules/test_quotation_marks.py

@@ -8,7 +8,7 @@ from tests.utils import Command
     Command(script="git commit -am \"Mismatched Quotation Marks\'"),
     Command(script="echo \"hello\'")])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command, new_command', [
@@ -16,4 +16,4 @@ def test_match(command):
     (Command("git commit -am \"Mismatched Quotation Marks\'"), "git commit -am \"Mismatched Quotation Marks\""),
     (Command("echo \"hello\'"), "echo \"hello\"")])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command

tests/rules/test_rm_dir.py

@@ -10,7 +10,7 @@ from tests.utils import Command
     Command('./bin/hdfs dfs -rm foo', stderr='rm: `foo`: Is a directory')
     ])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command', [
@@ -19,13 +19,13 @@ def test_match(command):
     Command('./bin/hdfs dfs -rm foo'),  
     Command()])
 def test_not_match(command):
-    assert not match(command, None)
+    assert not match(command)
 
 
 @pytest.mark.parametrize('command, new_command', [
     (Command('rm foo'), 'rm -rf foo'),
     (Command('hdfs dfs -rm foo'), 'hdfs dfs -rm -r foo')])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command
 
 

tests/rules/test_rm_root.py

@@ -5,7 +5,7 @@ from tests.utils import Command
 
 def test_match():
     assert match(Command(script='rm -rf /',
-                         stderr='add --no-preserve-root'), None)
+                         stderr='add --no-preserve-root'))
 
 
 @pytest.mark.parametrize('command', [
@@ -13,9 +13,9 @@ def test_match():
     Command(script='rm --no-preserve-root /', stderr='add --no-preserve-root'),
     Command(script='rm -rf /', stderr='')])
 def test_not_match(command):
-    assert not match(command, None)
+    assert not match(command)
 
 
 def test_get_new_command():
-    assert get_new_command(Command(script='rm -rf /'), None) \
+    assert get_new_command(Command(script='rm -rf /')) \
            == 'rm -rf / --no-preserve-root'

tests/rules/test_sed_unterminated_s.py

@@ -9,20 +9,20 @@ def sed_unterminated_s():
 
 
 def test_match(sed_unterminated_s):
-    assert match(Command('sed -e s/foo/bar', stderr=sed_unterminated_s), None)
-    assert match(Command('sed -es/foo/bar', stderr=sed_unterminated_s), None)
-    assert match(Command('sed -e s/foo/bar -e s/baz/quz', stderr=sed_unterminated_s), None)
-    assert not match(Command('sed -e s/foo/bar'), None)
-    assert not match(Command('sed -es/foo/bar'), None)
-    assert not match(Command('sed -e s/foo/bar -e s/baz/quz'), None)
+    assert match(Command('sed -e s/foo/bar', stderr=sed_unterminated_s))
+    assert match(Command('sed -es/foo/bar', stderr=sed_unterminated_s))
+    assert match(Command('sed -e s/foo/bar -e s/baz/quz', stderr=sed_unterminated_s))
+    assert not match(Command('sed -e s/foo/bar'))
+    assert not match(Command('sed -es/foo/bar'))
+    assert not match(Command('sed -e s/foo/bar -e s/baz/quz'))
 
 
 def test_get_new_command(sed_unterminated_s):
-    assert get_new_command(Command('sed -e s/foo/bar', stderr=sed_unterminated_s), None) \
+    assert get_new_command(Command('sed -e s/foo/bar', stderr=sed_unterminated_s)) \
             == 'sed -e s/foo/bar/'
-    assert get_new_command(Command('sed -es/foo/bar', stderr=sed_unterminated_s), None) \
+    assert get_new_command(Command('sed -es/foo/bar', stderr=sed_unterminated_s)) \
             == 'sed -es/foo/bar/'
-    assert get_new_command(Command(r"sed -e 's/\/foo/bar'", stderr=sed_unterminated_s), None) \
+    assert get_new_command(Command(r"sed -e 's/\/foo/bar'", stderr=sed_unterminated_s)) \
             == r"sed -e 's/\/foo/bar/'"
-    assert get_new_command(Command(r"sed -e s/foo/bar -es/baz/quz", stderr=sed_unterminated_s), None) \
+    assert get_new_command(Command(r"sed -e s/foo/bar -es/baz/quz", stderr=sed_unterminated_s)) \
             == r"sed -e s/foo/bar/ -es/baz/quz/"

tests/rules/test_sl_ls.py

@@ -4,9 +4,9 @@ from tests.utils import Command
 
 
 def test_match():
-    assert match(Command('sl'), None)
-    assert not match(Command('ls'), None)
+    assert match(Command('sl'))
+    assert not match(Command('ls'))
 
 
 def test_get_new_command():
-    assert get_new_command(Command('sl'), None) == 'ls'
+    assert get_new_command(Command('sl')) == 'ls'

tests/rules/test_ssh_known_host.py

@@ -44,23 +44,23 @@ Host key verification failed.""".format(path, '98.765.432.321')
 
 def test_match(ssh_error):
     errormsg, _, _, _ = ssh_error
-    assert match(Command('ssh', stderr=errormsg), None)
-    assert match(Command('ssh', stderr=errormsg), None)
-    assert match(Command('scp something something', stderr=errormsg), None)
-    assert match(Command('scp something something', stderr=errormsg), None)
-    assert not match(Command(stderr=errormsg), None)
-    assert not match(Command('notssh', stderr=errormsg), None)
-    assert not match(Command('ssh'), None)
+    assert match(Command('ssh', stderr=errormsg))
+    assert match(Command('ssh', stderr=errormsg))
+    assert match(Command('scp something something', stderr=errormsg))
+    assert match(Command('scp something something', stderr=errormsg))
+    assert not match(Command(stderr=errormsg))
+    assert not match(Command('notssh', stderr=errormsg))
+    assert not match(Command('ssh'))
 
 
 def test_side_effect(ssh_error):
     errormsg, path, reset, known_hosts = ssh_error
     command = Command('ssh user@host', stderr=errormsg)
-    side_effect(command, None, None)
+    side_effect(command, None)
     expected = ['123.234.567.890 asdjkasjdakjsd\n', '111.222.333.444 qwepoiwqepoiss\n']
     assert known_hosts(path) == expected
 
 
 def test_get_new_command(ssh_error, monkeypatch):
     errormsg, _, _, _ = ssh_error
-    assert get_new_command(Command('ssh user@host', stderr=errormsg), None) == 'ssh user@host'
+    assert get_new_command(Command('ssh user@host', stderr=errormsg)) == 'ssh user@host'

tests/rules/test_sudo.py

@@ -14,11 +14,11 @@ from tests.utils import Command
     ('You don\'t have access to the history DB.', ''),
     ('', "error: [Errno 13] Permission denied: '/usr/local/lib/python2.7/dist-packages/ipaddr.py'")])
 def test_match(stderr, stdout):
-    assert match(Command(stderr=stderr, stdout=stdout), None)
+    assert match(Command(stderr=stderr, stdout=stdout))
 
 
 def test_not_match():
-    assert not match(Command(), None)
+    assert not match(Command())
 
 
 @pytest.mark.parametrize('before, after', [
@@ -26,4 +26,4 @@ def test_not_match():
     ('echo a > b', 'sudo sh -c "echo a > b"'),
     ('echo "a" >> b', 'sudo sh -c "echo \\"a\\" >> b"')])
 def test_get_new_command(before, after):
-    assert get_new_command(Command(before), None) == after
+    assert get_new_command(Command(before)) == after

tests/rules/test_switch_lang.py

@@ -9,7 +9,7 @@ from tests.utils import Command
     Command(stderr='command not found: фзе-пуе', script=u'фзе-пуе'),
     Command(stderr='command not found: λσ', script=u'λσ')])
 def test_match(command):
-    assert switch_lang.match(command, None)
+    assert switch_lang.match(command)
 
 
 @pytest.mark.parametrize('command', [
@@ -18,11 +18,11 @@ def test_match(command):
     Command(stderr='command not found: агсл', script=u'агсл'),
     Command(stderr='some info', script=u'фзе-пуе')])
 def test_not_match(command):
-    assert not switch_lang.match(command, None)
+    assert not switch_lang.match(command)
 
 
 @pytest.mark.parametrize('command, new_command', [
     (Command(u'фзе-пуе штыефдд мшь'), 'apt-get install vim'),
     (Command(u'λσ -λα'), 'ls -la')])
 def test_get_new_command(command, new_command):
-    assert switch_lang.get_new_command(command, None) == new_command
+    assert switch_lang.get_new_command(command) == new_command

tests/rules/test_systemctl.py

@@ -4,15 +4,15 @@ from tests.utils import Command
 
 
 def test_match():
-    assert match(Command('systemctl nginx start', stderr='Unknown operation \'nginx\'.'), None)
-    assert match(Command('sudo systemctl nginx start', stderr='Unknown operation \'nginx\'.'), None)
-    assert not match(Command('systemctl start nginx'), None)
-    assert not match(Command('systemctl start nginx'), None)
-    assert not match(Command('sudo systemctl nginx', stderr='Unknown operation \'nginx\'.'), None)
-    assert not match(Command('systemctl nginx', stderr='Unknown operation \'nginx\'.'), None)
-    assert not match(Command('systemctl start wtf', stderr='Failed to start wtf.service: Unit wtf.service failed to load: No such file or directory.'), None)
+    assert match(Command('systemctl nginx start', stderr='Unknown operation \'nginx\'.'))
+    assert match(Command('sudo systemctl nginx start', stderr='Unknown operation \'nginx\'.'))
+    assert not match(Command('systemctl start nginx'))
+    assert not match(Command('systemctl start nginx'))
+    assert not match(Command('sudo systemctl nginx', stderr='Unknown operation \'nginx\'.'))
+    assert not match(Command('systemctl nginx', stderr='Unknown operation \'nginx\'.'))
+    assert not match(Command('systemctl start wtf', stderr='Failed to start wtf.service: Unit wtf.service failed to load: No such file or directory.'))
 
 
 def test_get_new_command():
-    assert get_new_command(Command('systemctl nginx start'), None) == "systemctl start nginx"
-    assert get_new_command(Command('sudo systemctl nginx start'), None) == "sudo systemctl start nginx"
+    assert get_new_command(Command('systemctl nginx start')) == "systemctl start nginx"
+    assert get_new_command(Command('sudo systemctl nginx start')) == "sudo systemctl start nginx"

tests/rules/test_tmux.py

@@ -11,9 +11,9 @@ def tmux_ambiguous():
 
 
 def test_match(tmux_ambiguous):
-    assert match(Command('tmux list', stderr=tmux_ambiguous), None)
+    assert match(Command('tmux list', stderr=tmux_ambiguous))
 
 
 def test_get_new_command(tmux_ambiguous):
-    assert get_new_command(Command('tmux list', stderr=tmux_ambiguous), None)\
+    assert get_new_command(Command('tmux list', stderr=tmux_ambiguous))\
         == ['tmux list-keys', 'tmux list-panes', 'tmux list-windows']

tests/rules/test_tsuru_login.py

@@ -15,7 +15,7 @@ error_msg = (
     Command(script='tsuru app-log -f', stderr=error_msg[1]),
 ])
 def test_match(command):
-    assert match(command, {})
+    assert match(command)
 
 
 @pytest.mark.parametrize('command', [
@@ -24,7 +24,7 @@ def test_match(command):
     Command(script='tsuru app-log -f', stderr=('Error: unparseable data')),
 ])
 def test_not_match(command):
-    assert not match(command, {})
+    assert not match(command)
 
 
 @pytest.mark.parametrize('command, new_command', [
@@ -34,4 +34,4 @@ def test_not_match(command):
      'tsuru login && tsuru app-log -f'),
 ])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, {}) == new_command
+    assert get_new_command(command) == new_command

tests/rules/test_tsuru_not_command.py

@@ -30,7 +30,7 @@ from thefuck.rules.tsuru_not_command import match, get_new_command
     )),
 ])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command', [
@@ -58,7 +58,7 @@ def test_match(command):
     Command('tsuru env-get', stderr='Error: App thefuck not found.'),
 ])
 def test_not_match(command):
-    assert not match(command, None)
+    assert not match(command)
 
 
 @pytest.mark.parametrize('command, new_commands', [
@@ -87,4 +87,4 @@ def test_not_match(command):
     )), ['tsuru target-list']),
 ])
 def test_get_new_command(command, new_commands):
-    assert get_new_command(command, None) == new_commands
+    assert get_new_command(command) == new_commands

tests/rules/test_unknown_command.py

@@ -9,7 +9,7 @@ from tests.utils import Command
             stderr='ls: Unknown command\nDid you mean -ls?  This command begins with a dash.'),
     Command(script='hdfs dfs ls /foo/bar', stderr='ls: Unknown command\nDid you mean -ls?  This command begins with a dash.')])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command', [
@@ -18,7 +18,7 @@ def test_match(command):
     Command(script='hdfs dfs -ls -R /foo/bar', stderr=''),  
     Command()])
 def test_not_match(command):
-    assert not match(command, None)
+    assert not match(command)
 
 
 @pytest.mark.parametrize('command, new_command', [
@@ -31,5 +31,5 @@ def test_not_match(command):
     (Command('./bin/hdfs dfs -Dtest=fred ls -R /foo/bar',
         stderr='ls: Unknown command\nDid you mean -ls?  This command begins with a dash.'), ['./bin/hdfs dfs -Dtest=fred -ls -R /foo/bar'])])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command
 

tests/rules/test_vagrant_up.py

@@ -11,7 +11,7 @@ from tests.utils import Command
     Command(script='vagrant rdp devbox',
             stderr='VM must be created before running this command. Run `vagrant up` first.')])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 @pytest.mark.parametrize('command', [
@@ -20,7 +20,7 @@ def test_match(command):
     Command(script='vagrant ssh', stderr='A Vagrant environment or target machine is required to run this command. Run `vagrant init` to create a new Vagrant environment. Or, get an ID of a target machine from `vagrant global-status` to run this command on. A final option is to change to a directory with a Vagrantfile and to try again.'),  
     Command()])
 def test_not_match(command):
-    assert not match(command, None)
+    assert not match(command)
 
 
 @pytest.mark.parametrize('command, new_command', [
@@ -31,5 +31,5 @@ def test_not_match(command):
     (Command(script='vagrant rdp devbox',
             stderr='VM must be created before running this command. Run `vagrant up` first.'), ['vagrant up devbox && vagrant rdp devbox', 'vagrant up && vagrant rdp devbox'])])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command
 

tests/rules/test_whois.py

@@ -8,11 +8,11 @@ from tests.utils import Command
     Command(script='whois https://en.wikipedia.org/'),
     Command(script='whois meta.unix.stackexchange.com')])
 def test_match(command):
-    assert match(command, None)
+    assert match(command)
 
 
 def test_not_match():
-    assert not match(Command(script='whois'), None)
+    assert not match(Command(script='whois'))
 
 
 # `whois com` actually makes sense
@@ -23,4 +23,4 @@ def test_not_match():
                                                     'whois stackexchange.com',
                                                     'whois com'])])
 def test_get_new_command(command, new_command):
-    assert get_new_command(command, None) == new_command
+    assert get_new_command(command) == new_command

tests/specific/test_git.py

@@ -9,9 +9,10 @@ from tests.utils import Command
      "19:23:25.470911 git.c:282   trace: alias expansion: com => 'commit' '--verbose'")])
 def test_git_support(called, command, stderr):
     @git_support
-    def fn(command, settings): return command.script
+    def fn(command):
+        return command.script
 
-    assert fn(Command(script=called, stderr=stderr), None) == command
+    assert fn(Command(script=called, stderr=stderr)) == command
 
 
 @pytest.mark.parametrize('command, is_git', [
@@ -24,6 +25,7 @@ def test_git_support(called, command, stderr):
     ('cat hub', False)])
 def test_git_support_match(command, is_git):
     @git_support
-    def fn(command, settings): return True
+    def fn(command):
+        return True
 
-    assert fn(Command(script=command), None) == is_git
+    assert fn(Command(script=command)) == is_git

tests/specific/test_sudo.py

@@ -13,8 +13,8 @@ from tests.utils import Command
     (False, 'sudo ls', 'ls', False),
     (False, 'ls', 'ls', False)])
 def test_sudo_support(return_value, command, called, result):
-    def fn(command, settings):
+    def fn(command):
         assert command == Command(called)
         return return_value
 
-    assert sudo_support(fn)(Command(command), None) == result
+    assert sudo_support(fn)(Command(command)) == result

tests/test_conf.py

@@ -2,15 +2,6 @@ import pytest
 import six
 from mock import Mock
 from thefuck import conf
-from tests.utils import Rule
-
-
-@pytest.mark.parametrize('enabled, rules, result', [
-    (True, conf.DEFAULT_RULES, True),
-    (False, conf.DEFAULT_RULES, False),
-    (False, conf.DEFAULT_RULES + ['test'], True)])
-def test_default(enabled, rules, result):
-    assert (Rule('test', enabled_by_default=enabled) in rules) == result
 
 
 @pytest.fixture
@@ -26,73 +17,79 @@ def environ(monkeypatch):
 
 
 @pytest.mark.usefixture('environ')
-def test_settings_defaults(load_source):
+def test_settings_defaults(load_source, settings):
     load_source.return_value = object()
+    settings.init()
     for key, val in conf.DEFAULT_SETTINGS.items():
-        assert getattr(conf.get_settings(Mock()), key) == val
+        assert getattr(settings, key) == val
 
 
 @pytest.mark.usefixture('environ')
 class TestSettingsFromFile(object):
-    def test_from_file(self, load_source):
+    def test_from_file(self, load_source, settings):
         load_source.return_value = Mock(rules=['test'],
                                         wait_command=10,
                                         require_confirmation=True,
                                         no_colors=True,
-                                        priority={'vim': 100})
-        settings = conf.get_settings(Mock())
+                                        priority={'vim': 100},
+                                        exclude_rules=['git'])
+        settings.init()
         assert settings.rules == ['test']
         assert settings.wait_command == 10
         assert settings.require_confirmation is True
         assert settings.no_colors is True
         assert settings.priority == {'vim': 100}
+        assert settings.exclude_rules == ['git']
 
-    def test_from_file_with_DEFAULT(self, load_source):
+    def test_from_file_with_DEFAULT(self, load_source, settings):
         load_source.return_value = Mock(rules=conf.DEFAULT_RULES + ['test'],
                                         wait_command=10,
+                                        exclude_rules=[],
                                         require_confirmation=True,
                                         no_colors=True)
-        settings = conf.get_settings(Mock())
+        settings.init()
         assert settings.rules == conf.DEFAULT_RULES + ['test']
 
 
 @pytest.mark.usefixture('load_source')
 class TestSettingsFromEnv(object):
-    def test_from_env(self, environ):
+    def test_from_env(self, environ, settings):
         environ.update({'THEFUCK_RULES': 'bash:lisp',
+                        'THEFUCK_EXCLUDE_RULES': 'git:vim',
                         'THEFUCK_WAIT_COMMAND': '55',
                         'THEFUCK_REQUIRE_CONFIRMATION': 'true',
                         'THEFUCK_NO_COLORS': 'false',
                         'THEFUCK_PRIORITY': 'bash=10:lisp=wrong:vim=15'})
-        settings = conf.get_settings(Mock())
+        settings.init()
         assert settings.rules == ['bash', 'lisp']
+        assert settings.exclude_rules == ['git', 'vim']
         assert settings.wait_command == 55
         assert settings.require_confirmation is True
         assert settings.no_colors is False
         assert settings.priority == {'bash': 10, 'vim': 15}
 
-    def test_from_env_with_DEFAULT(self, environ):
+    def test_from_env_with_DEFAULT(self, environ, settings):
         environ.update({'THEFUCK_RULES': 'DEFAULT_RULES:bash:lisp'})
-        settings = conf.get_settings(Mock())
+        settings.init()
         assert settings.rules == conf.DEFAULT_RULES + ['bash', 'lisp']
 
 
 class TestInitializeSettingsFile(object):
-    def test_ignore_if_exists(self):
+    def test_ignore_if_exists(self, settings):
         settings_path_mock = Mock(is_file=Mock(return_value=True), open=Mock())
-        user_dir_mock = Mock(joinpath=Mock(return_value=settings_path_mock))
-        conf.initialize_settings_file(user_dir_mock)
+        settings.user_dir = Mock(joinpath=Mock(return_value=settings_path_mock))
+        settings._init_settings_file()
         assert settings_path_mock.is_file.call_count == 1
         assert not settings_path_mock.open.called
 
-    def test_create_if_doesnt_exists(self):
+    def test_create_if_doesnt_exists(self, settings):
         settings_file = six.StringIO()
         settings_path_mock = Mock(
             is_file=Mock(return_value=False),
             open=Mock(return_value=Mock(
                 __exit__=lambda *args: None, __enter__=lambda *args: settings_file)))
-        user_dir_mock = Mock(joinpath=Mock(return_value=settings_path_mock))
-        conf.initialize_settings_file(user_dir_mock)
+        settings.user_dir = Mock(joinpath=Mock(return_value=settings_path_mock))
+        settings._init_settings_file()
         settings_file_contents = settings_file.getvalue()
         assert settings_path_mock.is_file.call_count == 1
         assert settings_path_mock.open.call_count == 1

tests/test_corrector.py

@@ -1,85 +1,59 @@
 import pytest
-from pathlib import PosixPath, Path
-from mock import Mock
-from thefuck import corrector, conf, types
+from pathlib import PosixPath
+from thefuck import corrector, conf
 from tests.utils import Rule, Command, CorrectedCommand
-from thefuck.corrector import make_corrected_commands, get_corrected_commands
-
-
-def test_load_rule(mocker):
-    match = object()
-    get_new_command = object()
-    load_source = mocker.patch(
-        'thefuck.corrector.load_source',
-        return_value=Mock(match=match,
-                          get_new_command=get_new_command,
-                          enabled_by_default=True,
-                          priority=900,
-                          requires_output=True))
-    assert corrector.load_rule(Path('/rules/bash.py'), settings=Mock(priority={})) \
-           == Rule('bash', match, get_new_command, priority=900)
-    load_source.assert_called_once_with('bash', '/rules/bash.py')
+from thefuck.corrector import get_corrected_commands, organize_commands
 
 
 class TestGetRules(object):
-    @pytest.fixture(autouse=True)
+    @pytest.fixture
     def glob(self, mocker):
-        return mocker.patch('thefuck.corrector.Path.glob', return_value=[])
+        results = {}
+        mocker.patch('pathlib.Path.glob',
+                     new_callable=lambda: lambda *_: results.pop('value', []))
+        return lambda value: results.update({'value': value})
+
+    @pytest.fixture(autouse=True)
+    def load_source(self, monkeypatch):
+        monkeypatch.setattr('thefuck.types.load_source',
+                            lambda x, _: Rule(x))
 
     def _compare_names(self, rules, names):
-        return [r.name for r in rules] == names
+        assert {r.name for r in rules} == set(names)
 
-    @pytest.mark.parametrize('conf_rules, rules', [
-        (conf.DEFAULT_RULES, ['bash', 'lisp', 'bash', 'lisp']),
-        (types.RulesNamesList(['bash']), ['bash', 'bash'])])
-    def test_get(self, monkeypatch, glob, conf_rules, rules):
-        glob.return_value = [PosixPath('bash.py'), PosixPath('lisp.py')]
-        monkeypatch.setattr('thefuck.corrector.load_source',
-                            lambda x, _: Rule(x))
-        assert self._compare_names(
-            corrector.get_rules(Path('~'), Mock(rules=conf_rules, priority={})),
-            rules)
+    @pytest.mark.parametrize('paths, conf_rules, exclude_rules, loaded_rules', [
+        (['git.py', 'bash.py'], conf.DEFAULT_RULES, [], ['git', 'bash']),
+        (['git.py', 'bash.py'], ['git'], [], ['git']),
+        (['git.py', 'bash.py'], conf.DEFAULT_RULES, ['git'], ['bash']),
+        (['git.py', 'bash.py'], ['git'], ['git'], [])])
+    def test_get_rules(self, glob, settings, paths, conf_rules, exclude_rules,
+                       loaded_rules):
+        glob([PosixPath(path) for path in paths])
+        settings.update(rules=conf_rules,
+                        priority={},
+                        exclude_rules=exclude_rules)
+        rules = corrector.get_rules()
+        self._compare_names(rules, loaded_rules)
 
 
-class TestIsRuleMatch(object):
-    def test_no_match(self, settings):
-        assert not corrector.is_rule_match(
-            Command('ls'), Rule('', lambda *_: False), settings)
-
-    def test_match(self, settings):
-        rule = Rule('', lambda x, _: x.script == 'cd ..')
-        assert corrector.is_rule_match(Command('cd ..'), rule, settings)
-
-    def test_when_rule_failed(self, capsys, settings):
-        rule = Rule('test', Mock(side_effect=OSError('Denied')),
-                    requires_output=False)
-        assert not corrector.is_rule_match(
-            Command('ls'), rule, settings)
-        assert capsys.readouterr()[1].split('\n')[0] == '[WARN] Rule test:'
-
-
-class TestMakeCorrectedCommands(object):
-    def test_with_rule_returns_list(self):
-        rule = Rule(get_new_command=lambda x, _: [x.script + '!', x.script + '@'],
-                    priority=100)
-        assert list(make_corrected_commands(Command(script='test'), rule, None)) \
-               == [CorrectedCommand(script='test!', priority=100),
-                   CorrectedCommand(script='test@', priority=200)]
-
-    def test_with_rule_returns_command(self):
-        rule = Rule(get_new_command=lambda x, _: x.script + '!',
-                    priority=100)
-        assert list(make_corrected_commands(Command(script='test'), rule, None)) \
-               == [CorrectedCommand(script='test!', priority=100)]
-
 def test_get_corrected_commands(mocker):
     command = Command('test', 'test', 'test')
-    rules = [Rule(match=lambda *_: False),
-             Rule(match=lambda *_: True,
-                  get_new_command=lambda x, _: x.script + '!', priority=100),
-             Rule(match=lambda *_: True,
-                  get_new_command=lambda x, _: [x.script + '@', x.script + ';'],
+    rules = [Rule(match=lambda _: False),
+             Rule(match=lambda _: True,
+                  get_new_command=lambda x: x.script + '!', priority=100),
+             Rule(match=lambda _: True,
+                  get_new_command=lambda x: [x.script + '@', x.script + ';'],
                   priority=60)]
     mocker.patch('thefuck.corrector.get_rules', return_value=rules)
-    assert [cmd.script for cmd in get_corrected_commands(command, None, Mock(debug=False))] \
+    assert [cmd.script for cmd in get_corrected_commands(command)] \
            == ['test!', 'test@', 'test;']
+
+
+def test_organize_commands():
+    """Ensures that the function removes duplicates and sorts commands."""
+    commands = [CorrectedCommand('ls'), CorrectedCommand('ls -la', priority=9000),
+                CorrectedCommand('ls -lh', priority=100),
+                CorrectedCommand('ls -lh', priority=9999)]
+    assert list(organize_commands(iter(commands))) \
+        == [CorrectedCommand('ls'), CorrectedCommand('ls -lh', priority=100),
+            CorrectedCommand('ls -la', priority=9000)]

tests/test_logs.py

@@ -1,14 +1,20 @@
+import pytest
 from mock import Mock
 from thefuck import logs
 
 
-def test_color():
-    assert logs.color('red', Mock(no_colors=False)) == 'red'
-    assert logs.color('red', Mock(no_colors=True)) == ''
+def test_color(settings):
+    settings.no_colors = False
+    assert logs.color('red') == 'red'
+    settings.no_colors = True
+    assert logs.color('red') == ''
 
 
-def test_debug(capsys):
-    logs.debug('test', Mock(no_colors=True, debug=True))
-    assert capsys.readouterr() == ('', 'DEBUG: test\n')
-    logs.debug('test', Mock(no_colors=True, debug=False))
-    assert capsys.readouterr() == ('', '')
+@pytest.mark.usefixtures('no_colors')
+@pytest.mark.parametrize('debug, stderr', [
+    (True, 'DEBUG: test\n'),
+    (False, '')])
+def test_debug(capsys, settings, debug, stderr):
+    settings.debug = debug
+    logs.debug('test')
+    assert capsys.readouterr() == ('', stderr)

tests/test_main.py

@@ -1,46 +0,0 @@
-import pytest
-from subprocess import PIPE
-from mock import Mock
-from thefuck import main
-from tests.utils import Command
-
-
-class TestGetCommand(object):
-    @pytest.fixture(autouse=True)
-    def Popen(self, monkeypatch):
-        Popen = Mock()
-        Popen.return_value.stdout.read.return_value = b'stdout'
-        Popen.return_value.stderr.read.return_value = b'stderr'
-        monkeypatch.setattr('thefuck.main.Popen', Popen)
-        return Popen
-
-    @pytest.fixture(autouse=True)
-    def prepare(self, monkeypatch):
-        monkeypatch.setattr('thefuck.main.os.environ', {})
-        monkeypatch.setattr('thefuck.main.wait_output', lambda *_: True)
-
-    @pytest.fixture(autouse=True)
-    def generic_shell(self, monkeypatch):
-        monkeypatch.setattr('thefuck.shells.from_shell', lambda x: x)
-        monkeypatch.setattr('thefuck.shells.to_shell', lambda x: x)
-
-    def test_get_command_calls(self, Popen):
-        assert main.get_command(Mock(env={}),
-                                ['thefuck', 'apt-get', 'search', 'vim']) \
-               == Command('apt-get search vim', 'stdout', 'stderr')
-        Popen.assert_called_once_with('apt-get search vim',
-                                      shell=True,
-                                      stdout=PIPE,
-                                      stderr=PIPE,
-                                      env={})
-
-    @pytest.mark.parametrize('args, result', [
-        (['thefuck', ''], None),
-        (['thefuck', '', ''], None),
-        (['thefuck', 'ls', '-la'], 'ls -la'),
-        (['thefuck', 'ls'], 'ls')])
-    def test_get_command_script(self, args, result):
-        if result:
-            assert main.get_command(Mock(env={}), args).script == result
-        else:
-            assert main.get_command(Mock(env={}), args) is None

tests/test_readme.py

@@ -1,14 +1,10 @@
-from tests.utils import root
-
-
-def test_readme():
-    with root.joinpath('README.md').open() as f:
+def test_readme(source_root):
+    with source_root.joinpath('README.md').open() as f:
         readme = f.read()
 
-        bundled = root \
-            .joinpath('thefuck') \
-            .joinpath('rules') \
-            .glob('*.py')
+        bundled = source_root.joinpath('thefuck') \
+                             .joinpath('rules') \
+                             .glob('*.py')
 
         for rule in bundled:
             if rule.stem != '__init__':

tests/test_touch.py

@@ -0,0 +1,29 @@
+import pytest
+from thefuck.rules.touch import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.fixture
+def stderr():
+    return "touch: cannot touch '/a/b/c':" \
+           " No such file or directory"
+
+
+def test_match(stderr):
+    command = Command(
+        'touch /a/b/c', stderr=stderr)
+    assert match(command)
+
+
+@pytest.mark.parametrize('command', [
+    Command('touch /a/b/c'),
+    Command('touch /a/b/c', stdout=stderr()),
+    Command('ls /a/b/c', stderr=stderr())])
+def test_not_match(command):
+    assert not match(command)
+
+
+def test_get_new_command(stderr):
+    command = Command('touch /a/b/c', stderr=stderr)
+    fixed_command = get_new_command(command)
+    assert fixed_command == 'mkdir -p /a/b && touch /a/b/c'

tests/test_types.py

@@ -1,52 +1,10 @@
-from thefuck.types import RulesNamesList, Settings, \
-    SortedCorrectedCommandsSequence
-from tests.utils import Rule, CorrectedCommand
-
-
-def test_rules_names_list():
-    assert RulesNamesList(['bash', 'lisp']) == ['bash', 'lisp']
-    assert RulesNamesList(['bash', 'lisp']) == RulesNamesList(['bash', 'lisp'])
-    assert Rule('lisp') in RulesNamesList(['lisp'])
-    assert Rule('bash') not in RulesNamesList(['lisp'])
-
-
-def test_update_settings():
-    settings = Settings({'key': 'val'})
-    new_settings = settings.update(key='new-val', unset='unset-value')
-    assert new_settings.key == 'val'
-    assert new_settings.unset == 'unset-value'
-    assert settings.key == 'val'
-
-
-class TestSortedCorrectedCommandsSequence(object):
-    def test_realises_generator_only_on_demand(self, settings):
-        should_realise = False
-
-        def gen():
-            yield CorrectedCommand('git commit')
-            yield CorrectedCommand('git branch', priority=200)
-            assert should_realise
-            yield CorrectedCommand('git checkout', priority=100)
-
-        commands = SortedCorrectedCommandsSequence(gen(), settings)
-        assert commands[0] == CorrectedCommand('git commit')
-        should_realise = True
-        assert commands[1] == CorrectedCommand('git checkout', priority=100)
-        assert commands[2] == CorrectedCommand('git branch', priority=200)
-
-    def test_remove_duplicates(self, settings):
-        side_effect = lambda *_: None
-        seq = SortedCorrectedCommandsSequence(
-            iter([CorrectedCommand('ls', priority=100),
-                  CorrectedCommand('ls', priority=200),
-                  CorrectedCommand('ls', side_effect, 300)]),
-            settings)
-        assert set(seq) == {CorrectedCommand('ls', priority=100),
-                            CorrectedCommand('ls', side_effect, 300)}
-
-    def test_with_blank(self, settings):
-        seq = SortedCorrectedCommandsSequence(iter([]), settings)
-        assert list(seq) == []
+from subprocess import PIPE
+from mock import Mock
+from pathlib import Path
+import pytest
+from tests.utils import CorrectedCommand, Rule, Command
+from thefuck import conf
+from thefuck.exceptions import EmptyCommand
 
 
 class TestCorrectedCommand(object):
@@ -60,3 +18,108 @@ class TestCorrectedCommand(object):
     def test_hashable(self):
         assert {CorrectedCommand('ls', None, 100),
                 CorrectedCommand('ls', None, 200)} == {CorrectedCommand('ls')}
+
+
+class TestRule(object):
+    def test_from_path(self, mocker):
+        match = object()
+        get_new_command = object()
+        load_source = mocker.patch(
+            'thefuck.types.load_source',
+            return_value=Mock(match=match,
+                              get_new_command=get_new_command,
+                              enabled_by_default=True,
+                              priority=900,
+                              requires_output=True))
+        assert Rule.from_path(Path('/rules/bash.py')) \
+               == Rule('bash', match, get_new_command, priority=900)
+        load_source.assert_called_once_with('bash', '/rules/bash.py')
+
+    @pytest.mark.parametrize('rules, exclude_rules, rule, is_enabled', [
+        (conf.DEFAULT_RULES, [], Rule('git', enabled_by_default=True), True),
+        (conf.DEFAULT_RULES, [], Rule('git', enabled_by_default=False), False),
+        ([], [], Rule('git', enabled_by_default=False), False),
+        ([], [], Rule('git', enabled_by_default=True), False),
+        (conf.DEFAULT_RULES + ['git'], [], Rule('git', enabled_by_default=False), True),
+        (['git'], [], Rule('git', enabled_by_default=False), True),
+        (conf.DEFAULT_RULES, ['git'], Rule('git', enabled_by_default=True), False),
+        (conf.DEFAULT_RULES, ['git'], Rule('git', enabled_by_default=False), False),
+        ([], ['git'], Rule('git', enabled_by_default=True), False),
+        ([], ['git'], Rule('git', enabled_by_default=False), False)])
+    def test_is_enabled(self, settings, rules, exclude_rules, rule, is_enabled):
+        settings.update(rules=rules,
+                        exclude_rules=exclude_rules)
+        assert rule.is_enabled == is_enabled
+
+    def test_isnt_match(self):
+        assert not Rule('', lambda _: False).is_match(
+            Command('ls'))
+
+    def test_is_match(self):
+        rule = Rule('', lambda x: x.script == 'cd ..')
+        assert rule.is_match(Command('cd ..'))
+
+    @pytest.mark.usefixtures('no_colors')
+    def test_isnt_match_when_rule_failed(self, capsys):
+        rule = Rule('test', Mock(side_effect=OSError('Denied')),
+                    requires_output=False)
+        assert not rule.is_match(Command('ls'))
+        assert capsys.readouterr()[1].split('\n')[0] == '[WARN] Rule test:'
+
+    def test_get_corrected_commands_with_rule_returns_list(self):
+        rule = Rule(get_new_command=lambda x: [x.script + '!', x.script + '@'],
+                    priority=100)
+        assert list(rule.get_corrected_commands(Command(script='test'))) \
+               == [CorrectedCommand(script='test!', priority=100),
+                   CorrectedCommand(script='test@', priority=200)]
+
+    def test_get_corrected_commands_with_rule_returns_command(self):
+        rule = Rule(get_new_command=lambda x: x.script + '!',
+                    priority=100)
+        assert list(rule.get_corrected_commands(Command(script='test'))) \
+               == [CorrectedCommand(script='test!', priority=100)]
+
+
+class TestCommand(object):
+    @pytest.fixture(autouse=True)
+    def Popen(self, monkeypatch):
+        Popen = Mock()
+        Popen.return_value.stdout.read.return_value = b'stdout'
+        Popen.return_value.stderr.read.return_value = b'stderr'
+        monkeypatch.setattr('thefuck.types.Popen', Popen)
+        return Popen
+
+    @pytest.fixture(autouse=True)
+    def prepare(self, monkeypatch):
+        monkeypatch.setattr('thefuck.types.os.environ', {})
+        monkeypatch.setattr('thefuck.types.Command._wait_output',
+                            staticmethod(lambda *_: True))
+
+    @pytest.fixture(autouse=True)
+    def generic_shell(self, monkeypatch):
+        monkeypatch.setattr('thefuck.shells.from_shell', lambda x: x)
+        monkeypatch.setattr('thefuck.shells.to_shell', lambda x: x)
+
+    def test_from_script_calls(self, Popen, settings):
+        settings.env = {}
+        assert Command.from_raw_script(
+            ['apt-get', 'search', 'vim']) == Command(
+            'apt-get search vim', 'stdout', 'stderr')
+        Popen.assert_called_once_with('apt-get search vim',
+                                      shell=True,
+                                      stdout=PIPE,
+                                      stderr=PIPE,
+                                      env={})
+
+    @pytest.mark.parametrize('script, result', [
+        ([''], None),
+        (['', ''], None),
+        (['ls', '-la'], 'ls -la'),
+        (['ls'], 'ls')])
+    def test_from_script(self, script, result):
+        if result:
+            assert Command.from_raw_script(script).script == result
+        else:
+            with pytest.raises(EmptyCommand):
+                Command.from_raw_script(script)
+

tests/test_ui.py

@@ -1,10 +1,9 @@
 # -*- encoding: utf-8 -*-
 
-from mock import Mock
 import pytest
 from itertools import islice
 from thefuck import ui
-from thefuck.types import CorrectedCommand, SortedCorrectedCommandsSequence
+from thefuck.types import CorrectedCommand
 
 
 @pytest.fixture
@@ -41,10 +40,8 @@ def test_read_actions(patch_getch):
 
 
 def test_command_selector():
-    selector = ui.CommandSelector([1, 2, 3])
+    selector = ui.CommandSelector(iter([1, 2, 3]))
     assert selector.value == 1
-    changes = []
-    selector.on_change(changes.append)
     selector.next()
     assert selector.value == 2
     selector.next()
@@ -53,69 +50,55 @@ def test_command_selector():
     assert selector.value == 1
     selector.previous()
     assert selector.value == 3
-    assert changes == [1, 2, 3, 1, 3]
 
 
+@pytest.mark.usefixtures('no_colors')
 class TestSelectCommand(object):
     @pytest.fixture
-    def commands_with_side_effect(self, settings):
-        return SortedCorrectedCommandsSequence(
-            iter([CorrectedCommand('ls', lambda *_: None, 100),
-                  CorrectedCommand('cd', lambda *_: None, 100)]),
-            settings)
+    def commands_with_side_effect(self):
+        return [CorrectedCommand('ls', lambda *_: None, 100),
+                CorrectedCommand('cd', lambda *_: None, 100)]
 
     @pytest.fixture
-    def commands(self, settings):
-        return SortedCorrectedCommandsSequence(
-            iter([CorrectedCommand('ls', None, 100),
-                  CorrectedCommand('cd', None, 100)]),
-            settings)
+    def commands(self):
+        return [CorrectedCommand('ls', None, 100),
+                CorrectedCommand('cd', None, 100)]
 
     def test_without_commands(self, capsys):
-        assert ui.select_command([], Mock(debug=False, no_color=True)) is None
+        assert ui.select_command(iter([])) is None
         assert capsys.readouterr() == ('', 'No fucks given\n')
 
-    def test_without_confirmation(self, capsys, commands):
-        assert ui.select_command(commands,
-                                 Mock(debug=False, no_color=True,
-                                      require_confirmation=False)) == commands[0]
+    def test_without_confirmation(self, capsys, commands, settings):
+        settings.require_confirmation = False
+        assert ui.select_command(iter(commands)) == commands[0]
         assert capsys.readouterr() == ('', 'ls\n')
 
-    def test_without_confirmation_with_side_effects(self, capsys,
-                                                    commands_with_side_effect):
-        assert ui.select_command(commands_with_side_effect,
-                                 Mock(debug=False, no_color=True,
-                                      require_confirmation=False)) \
+    def test_without_confirmation_with_side_effects(
+            self, capsys, commands_with_side_effect, settings):
+        settings.require_confirmation = False
+        assert ui.select_command(iter(commands_with_side_effect)) \
                == commands_with_side_effect[0]
         assert capsys.readouterr() == ('', 'ls (+side effect)\n')
 
     def test_with_confirmation(self, capsys, patch_getch, commands):
         patch_getch(['\n'])
-        assert ui.select_command(commands,
-                                 Mock(debug=False, no_color=True,
-                                      require_confirmation=True)) == commands[0]
+        assert ui.select_command(iter(commands)) == commands[0]
         assert capsys.readouterr() == ('', u'\x1b[1K\rls [enter/↑/↓/ctrl+c]\n')
 
     def test_with_confirmation_abort(self, capsys, patch_getch, commands):
         patch_getch([KeyboardInterrupt])
-        assert ui.select_command(commands,
-                                 Mock(debug=False, no_color=True,
-                                      require_confirmation=True)) is None
+        assert ui.select_command(iter(commands)) is None
         assert capsys.readouterr() == ('', u'\x1b[1K\rls [enter/↑/↓/ctrl+c]\nAborted\n')
 
     def test_with_confirmation_with_side_effct(self, capsys, patch_getch,
                                                commands_with_side_effect):
         patch_getch(['\n'])
-        assert ui.select_command(commands_with_side_effect,
-                                 Mock(debug=False, no_color=True,
-                                      require_confirmation=True))\
+        assert ui.select_command(iter(commands_with_side_effect))\
                == commands_with_side_effect[0]
         assert capsys.readouterr() == ('', u'\x1b[1K\rls (+side effect) [enter/↑/↓/ctrl+c]\n')
 
     def test_with_confirmation_select_second(self, capsys, patch_getch, commands):
         patch_getch(['\x1b', '[', 'B', '\n'])
-        assert ui.select_command(commands,
-                                 Mock(debug=False, no_color=True,
-                                      require_confirmation=True)) == commands[1]
+        assert ui.select_command(iter(commands)) == commands[1]
         assert capsys.readouterr() == (
             '', u'\x1b[1K\rls [enter/↑/↓/ctrl+c]\x1b[1K\rcd [enter/↑/↓/ctrl+c]\n')

tests/test_utils.py

@@ -1,10 +1,9 @@
 import pytest
 from mock import Mock
 import six
-from thefuck.utils import wrap_settings, \
+from thefuck.utils import default_settings, \
     memoize, get_closest, get_all_executables, replace_argument, \
-    get_all_matched_commands, is_app, for_app, cache
-from thefuck.types import Settings
+    get_all_matched_commands, is_app, for_app, cache, compatibility_call
 from tests.utils import Command
 
 
@@ -12,9 +11,12 @@ from tests.utils import Command
     ({'key': 'val'}, {}, {'key': 'val'}),
     ({'key': 'new-val'}, {'key': 'val'}, {'key': 'val'}),
     ({'key': 'new-val', 'unset': 'unset'}, {'key': 'val'}, {'key': 'val', 'unset': 'unset'})])
-def test_wrap_settings(override, old, new):
-    fn = lambda _, settings: settings
-    assert wrap_settings(override)(fn)(None, Settings(old)) == new
+def test_default_settings(settings, override, old, new):
+    settings.clear()
+    settings.update(old)
+    fn = lambda _: _
+    default_settings(override)(fn)(None)
+    assert settings == new
 
 
 def test_memoize():
@@ -53,7 +55,7 @@ def get_aliases(mocker):
 
 
 @pytest.mark.usefixtures('no_memoize', 'get_aliases')
-def test_get_all_callables():
+def test_get_all_executables():
     all_callables = get_all_executables()
     assert 'vim' in all_callables
     assert 'fsck' in all_callables
@@ -112,10 +114,10 @@ def test_is_app(script, names, result):
     ('hg diff', ['git', 'hub'], False)])
 def test_for_app(script, names, result):
     @for_app(*names)
-    def match(command, settings):
+    def match(command):
         return True
 
-    assert match(Command(script), None) == result
+    assert match(Command(script)) == result
 
 
 class TestCache(object):
@@ -180,3 +182,50 @@ class TestCache(object):
         shelve.update({key: {'etag': '-1', 'value': 'old-value'}})
         assert fn() == 'test'
         assert shelve == {key: {'etag': '0', 'value': 'test'}}
+
+
+class TestCompatibilityCall(object):
+    def test_match(self):
+        def match(command):
+            assert command == Command()
+            return True
+
+        assert compatibility_call(match, Command())
+
+    def test_old_match(self, settings):
+        def match(command, _settings):
+            assert command == Command()
+            assert settings == _settings
+            return True
+
+        assert compatibility_call(match, Command())
+
+    def test_get_new_command(self):
+        def get_new_command(command):
+            assert command == Command()
+            return True
+
+        assert compatibility_call(get_new_command, Command())
+
+    def test_old_get_new_command(self, settings):
+        def get_new_command(command, _settings):
+            assert command == Command()
+            assert settings == _settings
+            return True
+
+        assert compatibility_call(get_new_command, Command())
+
+    def test_side_effect(self):
+        def side_effect(command, new_command):
+            assert command == Command() == new_command
+            return True
+
+        assert compatibility_call(side_effect, Command(), Command())
+
+    def test_old_side_effect(self, settings):
+        def side_effect(command, new_command, _settings):
+            assert command == Command() == new_command
+            assert settings == _settings
+            return True
+
+        assert compatibility_call(side_effect, Command(), Command())

tests/utils.py

@@ -1,25 +1,25 @@
-from pathlib import Path
 from thefuck import types
 from thefuck.conf import DEFAULT_PRIORITY
 
 
-def Command(script='', stdout='', stderr=''):
-    return types.Command(script, stdout, stderr)
+class Command(types.Command):
+    def __init__(self, script='', stdout='', stderr=''):
+        super(Command, self).__init__(script, stdout, stderr)
 
 
-def Rule(name='', match=lambda *_: True,
-         get_new_command=lambda *_: '',
-         enabled_by_default=True,
-         side_effect=None,
-         priority=DEFAULT_PRIORITY,
-         requires_output=True):
-    return types.Rule(name, match, get_new_command,
-                      enabled_by_default, side_effect,
-                      priority, requires_output)
+class Rule(types.Rule):
+    def __init__(self, name='', match=lambda *_: True,
+                 get_new_command=lambda *_: '',
+                 enabled_by_default=True,
+                 side_effect=None,
+                 priority=DEFAULT_PRIORITY,
+                 requires_output=True):
+        super(Rule, self).__init__(name, match, get_new_command,
+                                   enabled_by_default, side_effect,
+                                   priority, requires_output)
 
 
-def CorrectedCommand(script='', side_effect=None, priority=DEFAULT_PRIORITY):
-    return types.CorrectedCommand(script, side_effect, priority)
-
-
-root = Path(__file__).parent.parent.resolve()
+class CorrectedCommand(types.CorrectedCommand):
+    def __init__(self, script='', side_effect=None, priority=DEFAULT_PRIORITY):
+        super(CorrectedCommand, self).__init__(
+            script, side_effect, priority)

thefuck/conf.py

@@ -1,31 +1,16 @@
-from copy import copy
 from imp import load_source
 import os
 import sys
+from pathlib import Path
 from six import text_type
-from . import logs, types
 
 
-class _DefaultRulesNames(types.RulesNamesList):
-    def __add__(self, items):
-        return _DefaultRulesNames(list(self) + items)
-
-    def __contains__(self, item):
-        return item.enabled_by_default or \
-               super(_DefaultRulesNames, self).__contains__(item)
-
-    def __eq__(self, other):
-        if isinstance(other, _DefaultRulesNames):
-            return super(_DefaultRulesNames, self).__eq__(other)
-        else:
-            return False
-
-
-DEFAULT_RULES = _DefaultRulesNames([])
+ALL_ENABLED = object()
+DEFAULT_RULES = [ALL_ENABLED]
 DEFAULT_PRIORITY = 1000
 
-
 DEFAULT_SETTINGS = {'rules': DEFAULT_RULES,
+                    'exclude_rules': [],
                     'wait_command': 3,
                     'require_confirmation': True,
                     'no_colors': False,
@@ -34,13 +19,13 @@ DEFAULT_SETTINGS = {'rules': DEFAULT_RULES,
                     'env': {'LC_ALL': 'C', 'LANG': 'C', 'GIT_TRACE': '1'}}
 
 ENV_TO_ATTR = {'THEFUCK_RULES': 'rules',
+               'THEFUCK_EXCLUDE_RULES': 'exclude_rules',
                'THEFUCK_WAIT_COMMAND': 'wait_command',
                'THEFUCK_REQUIRE_CONFIRMATION': 'require_confirmation',
                'THEFUCK_NO_COLORS': 'no_colors',
                'THEFUCK_PRIORITY': 'priority',
                'THEFUCK_DEBUG': 'debug'}
 
-
 SETTINGS_HEADER = u"""# ~/.thefuck/settings.py: The Fuck settings file
 #
 # The rules are defined as in the example bellow:
@@ -54,82 +39,89 @@ SETTINGS_HEADER = u"""# ~/.thefuck/settings.py: The Fuck settings file
 """
 
 
-def _settings_from_file(user_dir):
-    """Loads settings from file."""
-    settings = load_source('settings',
-                           text_type(user_dir.joinpath('settings.py')))
-    return {key: getattr(settings, key)
-            for key in DEFAULT_SETTINGS.keys()
-            if hasattr(settings, key)}
+class Settings(dict):
+    def __getattr__(self, item):
+        return self.get(item)
 
+    def __setattr__(self, key, value):
+        self[key] = value
 
-def _rules_from_env(val):
-    """Transforms rules list from env-string to python."""
-    val = val.split(':')
-    if 'DEFAULT_RULES' in val:
-        val = DEFAULT_RULES + [rule for rule in val if rule != 'DEFAULT_RULES']
-    return val
+    def init(self):
+        """Fills `settings` with values from `settings.py` and env."""
+        from .logs import exception
 
+        self._setup_user_dir()
+        self._init_settings_file()
 
-def _priority_from_env(val):
-    """Gets priority pairs from env."""
-    for part in val.split(':'):
         try:
-            rule, priority = part.split('=')
-            yield rule, int(priority)
-        except ValueError:
-            continue
+            self.update(self._settings_from_file())
+        except Exception:
+            exception("Can't load settings from file", sys.exc_info())
 
+        try:
+            self.update(self._settings_from_env())
+        except Exception:
+            exception("Can't load settings from env", sys.exc_info())
 
-def _val_from_env(env, attr):
-    """Transforms env-strings to python."""
-    val = os.environ[env]
-    if attr == 'rules':
-        return _rules_from_env(val)
-    elif attr == 'priority':
-        return dict(_priority_from_env(val))
-    elif attr == 'wait_command':
-        return int(val)
-    elif attr in ('require_confirmation', 'no_colors', 'debug'):
-        return val.lower() == 'true'
-    else:
+    def _init_settings_file(self):
+        settings_path = self.user_dir.joinpath('settings.py')
+        if not settings_path.is_file():
+            with settings_path.open(mode='w') as settings_file:
+                settings_file.write(SETTINGS_HEADER)
+                for setting in DEFAULT_SETTINGS.items():
+                    settings_file.write(u'# {} = {}\n'.format(*setting))
+
+    def _setup_user_dir(self):
+        """Returns user config dir, create it when it doesn't exist."""
+        user_dir = Path(os.path.expanduser('~/.thefuck'))
+        rules_dir = user_dir.joinpath('rules')
+        if not rules_dir.is_dir():
+            rules_dir.mkdir(parents=True)
+        self.user_dir = user_dir
+
+    def _settings_from_file(self):
+        """Loads settings from file."""
+        settings = load_source(
+            'settings', text_type(self.user_dir.joinpath('settings.py')))
+        return {key: getattr(settings, key)
+                for key in DEFAULT_SETTINGS.keys()
+                if hasattr(settings, key)}
+
+    def _rules_from_env(self, val):
+        """Transforms rules list from env-string to python."""
+        val = val.split(':')
+        if 'DEFAULT_RULES' in val:
+            val = DEFAULT_RULES + [rule for rule in val if rule != 'DEFAULT_RULES']
         return val
 
+    def _priority_from_env(self, val):
+        """Gets priority pairs from env."""
+        for part in val.split(':'):
+            try:
+                rule, priority = part.split('=')
+                yield rule, int(priority)
+            except ValueError:
+                continue
 
-def _settings_from_env():
-    """Loads settings from env."""
-    return {attr: _val_from_env(env, attr)
-            for env, attr in ENV_TO_ATTR.items()
-            if env in os.environ}
+    def _val_from_env(self, env, attr):
+        """Transforms env-strings to python."""
+        val = os.environ[env]
+        if attr in ('rules', 'exclude_rules'):
+            return self._rules_from_env(val)
+        elif attr == 'priority':
+            return dict(self._priority_from_env(val))
+        elif attr == 'wait_command':
+            return int(val)
+        elif attr in ('require_confirmation', 'no_colors', 'debug'):
+            return val.lower() == 'true'
+        else:
+            return val
+
+    def _settings_from_env(self):
+        """Loads settings from env."""
+        return {attr: self._val_from_env(env, attr)
+                for env, attr in ENV_TO_ATTR.items()
+                if env in os.environ}
 
 
-def get_settings(user_dir):
-    """Returns settings filled with values from `settings.py` and env."""
-    conf = copy(DEFAULT_SETTINGS)
-    try:
-        conf.update(_settings_from_file(user_dir))
-    except Exception:
-        logs.exception("Can't load settings from file",
-                       sys.exc_info(),
-                       types.Settings(conf))
-
-    try:
-        conf.update(_settings_from_env())
-    except Exception:
-        logs.exception("Can't load settings from env",
-                       sys.exc_info(),
-                       types.Settings(conf))
-
-    if not isinstance(conf['rules'], types.RulesNamesList):
-        conf['rules'] = types.RulesNamesList(conf['rules'])
-
-    return types.Settings(conf)
-
-
-def initialize_settings_file(user_dir):
-    settings_path = user_dir.joinpath('settings.py')
-    if not settings_path.is_file():
-        with settings_path.open(mode='w') as settings_file:
-            settings_file.write(SETTINGS_HEADER)
-            for setting in DEFAULT_SETTINGS.items():
-                settings_file.write(u'# {} = {}\n'.format(*setting))
+settings = Settings(DEFAULT_SETTINGS)

thefuck/corrector.py

@@ -1,71 +1,75 @@
-import sys
-from imp import load_source
 from pathlib import Path
-from . import conf, types, logs
+from .conf import settings
+from .types import Rule
+from . import logs
 
 
-def load_rule(rule, settings):
-    """Imports rule module and returns it."""
-    name = rule.name[:-3]
-    with logs.debug_time(u'Importing rule: {};'.format(name), settings):
-        rule_module = load_source(name, str(rule))
-        priority = getattr(rule_module, 'priority', conf.DEFAULT_PRIORITY)
-    return types.Rule(name, rule_module.match,
-                      rule_module.get_new_command,
-                      getattr(rule_module, 'enabled_by_default', True),
-                      getattr(rule_module, 'side_effect', None),
-                      settings.priority.get(name, priority),
-                      getattr(rule_module, 'requires_output', True))
+def get_loaded_rules(rules_paths):
+    """Yields all available rules.
+
+    :type rules_paths: [Path]
+    :rtype: Iterable[Rule]
+
+    """
+    for path in rules_paths:
+        if path.name != '__init__.py':
+            rule = Rule.from_path(path)
+            if rule.is_enabled:
+                yield rule
 
 
-def get_loaded_rules(rules, settings):
-    """Yields all available rules."""
-    for rule in rules:
-        if rule.name != '__init__.py':
-            loaded_rule = load_rule(rule, settings)
-            if loaded_rule in settings.rules:
-                yield loaded_rule
+def get_rules():
+    """Returns all enabled rules.
 
+    :rtype: [Rule]
 
-def get_rules(user_dir, settings):
-    """Returns all enabled rules."""
+    """
     bundled = Path(__file__).parent \
         .joinpath('rules') \
         .glob('*.py')
-    user = user_dir.joinpath('rules').glob('*.py')
-    return sorted(get_loaded_rules(sorted(bundled) + sorted(user), settings),
+    user = settings.user_dir.joinpath('rules').glob('*.py')
+    return sorted(get_loaded_rules(sorted(bundled) + sorted(user)),
                   key=lambda rule: rule.priority)
 
 
-def is_rule_match(command, rule, settings):
-    """Returns first matched rule for command."""
-    script_only = command.stdout is None and command.stderr is None
+def organize_commands(corrected_commands):
+    """Yields sorted commands without duplicates.
 
-    if script_only and rule.requires_output:
-        return False
+    :type corrected_commands: Iterable[thefuck.types.CorrectedCommand]
+    :rtype: Iterable[thefuck.types.CorrectedCommand]
 
+    """
     try:
-        with logs.debug_time(u'Trying rule: {};'.format(rule.name),
-                             settings):
-            if rule.match(command, settings):
-                return True
-    except Exception:
-        logs.rule_failed(rule, sys.exc_info(), settings)
+        first_command = next(corrected_commands)
+        yield first_command
+    except StopIteration:
+        return
+
+    without_duplicates = {
+        command for command in sorted(
+            corrected_commands, key=lambda command: command.priority)
+        if command != first_command}
+
+    sorted_commands = sorted(
+        without_duplicates,
+        key=lambda corrected_command: corrected_command.priority)
+
+    logs.debug('Corrected commands: '.format(
+        ', '.join(str(cmd) for cmd in [first_command] + sorted_commands)))
+
+    for command in sorted_commands:
+        yield command
 
 
-def make_corrected_commands(command, rule, settings):
-    new_commands = rule.get_new_command(command, settings)
-    if not isinstance(new_commands, list):
-        new_commands = (new_commands,)
-    for n, new_command in enumerate(new_commands):
-        yield types.CorrectedCommand(script=new_command,
-                                     side_effect=rule.side_effect,
-                                     priority=(n + 1) * rule.priority)
+def get_corrected_commands(command):
+    """Returns generator with sorted and unique corrected commands.
 
+    :type command: thefuck.types.Command
+    :rtype: Iterable[thefuck.types.CorrectedCommand]
 
-def get_corrected_commands(command, user_dir, settings):
+    """
     corrected_commands = (
-        corrected for rule in get_rules(user_dir, settings)
-        if is_rule_match(command, rule, settings)
-        for corrected in make_corrected_commands(command, rule, settings))
-    return types.SortedCorrectedCommandsSequence(corrected_commands, settings)
+        corrected for rule in get_rules()
+        if rule.is_match(command)
+        for corrected in rule.get_corrected_commands(command))
+    return organize_commands(corrected_commands)

thefuck/exceptions.py

@@ -0,0 +1,6 @@
+class EmptyCommand(Exception):
+    """Raised when empty command passed to `thefuck`."""
+
+
+class NoRuleMatched(Exception):
+    """Raised when no rule matched for some command."""

thefuck/logs.py

@@ -5,9 +5,10 @@ from datetime import datetime
 import sys
 from traceback import format_exception
 import colorama
+from .conf import settings
 
 
-def color(color_, settings):
+def color(color_):
     """Utility for ability to disabling colored output."""
     if settings.no_colors:
         return ''
@@ -15,37 +16,37 @@ def color(color_, settings):
         return color_
 
 
-def exception(title, exc_info, settings):
+def exception(title, exc_info):
     sys.stderr.write(
         u'{warn}[WARN] {title}:{reset}\n{trace}'
         u'{warn}----------------------------{reset}\n\n'.format(
             warn=color(colorama.Back.RED + colorama.Fore.WHITE
-                       + colorama.Style.BRIGHT, settings),
-            reset=color(colorama.Style.RESET_ALL, settings),
+                       + colorama.Style.BRIGHT),
+            reset=color(colorama.Style.RESET_ALL),
             title=title,
             trace=''.join(format_exception(*exc_info))))
 
 
-def rule_failed(rule, exc_info, settings):
-    exception('Rule {}'.format(rule.name), exc_info, settings)
+def rule_failed(rule, exc_info):
+    exception('Rule {}'.format(rule.name), exc_info)
 
 
-def failed(msg, settings):
+def failed(msg):
     sys.stderr.write('{red}{msg}{reset}\n'.format(
         msg=msg,
-        red=color(colorama.Fore.RED, settings),
-        reset=color(colorama.Style.RESET_ALL, settings)))
+        red=color(colorama.Fore.RED),
+        reset=color(colorama.Style.RESET_ALL)))
 
 
-def show_corrected_command(corrected_command, settings):
+def show_corrected_command(corrected_command):
     sys.stderr.write('{bold}{script}{reset}{side_effect}\n'.format(
         script=corrected_command.script,
         side_effect=' (+side effect)' if corrected_command.side_effect else '',
-        bold=color(colorama.Style.BRIGHT, settings),
-        reset=color(colorama.Style.RESET_ALL, settings)))
+        bold=color(colorama.Style.BRIGHT),
+        reset=color(colorama.Style.RESET_ALL)))
 
 
-def confirm_text(corrected_command, settings):
+def confirm_text(corrected_command):
     sys.stderr.write(
         ('{clear}{bold}{script}{reset}{side_effect} '
          '[{green}enter{reset}/{blue}↑{reset}/{blue}↓{reset}'
@@ -53,26 +54,42 @@ def confirm_text(corrected_command, settings):
             script=corrected_command.script,
             side_effect=' (+side effect)' if corrected_command.side_effect else '',
             clear='\033[1K\r',
-            bold=color(colorama.Style.BRIGHT, settings),
-            green=color(colorama.Fore.GREEN, settings),
-            red=color(colorama.Fore.RED, settings),
-            reset=color(colorama.Style.RESET_ALL, settings),
-            blue=color(colorama.Fore.BLUE, settings)))
+            bold=color(colorama.Style.BRIGHT),
+            green=color(colorama.Fore.GREEN),
+            red=color(colorama.Fore.RED),
+            reset=color(colorama.Style.RESET_ALL),
+            blue=color(colorama.Fore.BLUE)))
 
 
-def debug(msg, settings):
+def debug(msg):
     if settings.debug:
         sys.stderr.write(u'{blue}{bold}DEBUG:{reset} {msg}\n'.format(
             msg=msg,
-            reset=color(colorama.Style.RESET_ALL, settings),
-            blue=color(colorama.Fore.BLUE, settings),
-            bold=color(colorama.Style.BRIGHT, settings)))
+            reset=color(colorama.Style.RESET_ALL),
+            blue=color(colorama.Fore.BLUE),
+            bold=color(colorama.Style.BRIGHT)))
 
 
 @contextmanager
-def debug_time(msg, settings):
+def debug_time(msg):
     started = datetime.now()
     try:
         yield
     finally:
-        debug(u'{} took: {}'.format(msg, datetime.now() - started), settings)
+        debug(u'{} took: {}'.format(msg, datetime.now() - started))
+
+
+def how_to_configure_alias(configuration_details):
+    print("Seems like {bold}fuck{reset} alias isn't configured!".format(
+        bold=color(colorama.Style.BRIGHT),
+        reset=color(colorama.Style.RESET_ALL)))
+    if configuration_details:
+        content, path = configuration_details
+        print(
+            "Please put {bold}{content}{reset} in your "
+            "{bold}{path}{reset}.".format(
+                bold=color(colorama.Style.BRIGHT),
+                reset=color(colorama.Style.RESET_ALL),
+                path=path,
+                content=content))
+    print('More details - https://github.com/nvbn/thefuck#manual-installation')