diff --git a/README.md b/README.md
index f44c816a..38f08a26 100644
--- a/README.md
+++ b/README.md
@@ -292,11 +292,17 @@ pip install -r requirements.txt
 python setup.py develop
 ```
 
-Run tests:
+Run unit tests:
 
 ```bash
 py.test
 ```
 
+Run unit and functional tests (requires docker):
+
+```bash
+FUNCTIONAL=true py.test
+```
+
 ## License MIT
 Project License can be found [here](LICENSE.md).
diff --git a/requirements.txt b/requirements.txt
index 3e46cdce..40ce7169 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,3 +3,4 @@ mock
 pytest-mock
 wheel
 setuptools>=17.1
+pexpect
diff --git a/tests/functional/__init__.py b/tests/functional/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/tests/functional/test_bash.py b/tests/functional/test_bash.py
new file mode 100644
index 00000000..ef4b5d42
--- /dev/null
+++ b/tests/functional/test_bash.py
@@ -0,0 +1,49 @@
+import pytest
+from tests.functional.utils import build_container, spawn, run, read_until, \
+    root, functional
+
+containers = [('thefuck/ubuntu-python3-bash', '''
+FROM ubuntu:latest
+RUN apt-get update
+RUN apt-get install -yy python3 python3-pip python3-dev
+RUN pip3 install -U setuptools
+RUN ln -s /usr/bin/pip3 /usr/bin/pip
+RUN echo "PS1='$ '" > /root/.bashrc
+CMD ["/bin/bash"]
+'''),
+              ('thefuck/ubuntu-python2-bash', '''
+FROM ubuntu:latest
+RUN apt-get update
+RUN apt-get install -yy python python-pip python-dev
+RUN pip2 install -U pip setuptools
+RUN echo "PS1='$ '" > /root/.bashrc
+CMD ["/bin/bash"]
+''')]
+
+
+@functional
+@pytest.mark.parametrize('tag, dockerfile', containers)
+def test_with_confirmation(tag, dockerfile):
+    build_container(tag, dockerfile)
+    with spawn(tag, '{}:/src'.format(root),
+               ['cd /src', 'pip install .', 'eval $(thefuck-alias)']) as proc:
+        run(proc, 'ehco test')
+        proc.sendline('fuck')
+        read_until(proc, '[')
+        proc.send('\n')
+        out = read_until(proc)
+        assert out.split('\n')[-2] == 'test\r\r'
+
+
+@functional
+@pytest.mark.parametrize('tag, dockerfile', containers)
+def test_without_confirmation(tag, dockerfile):
+    build_container(tag, dockerfile)
+    with spawn(tag, '{}:/src'.format(root),
+               ['cd /src', 'pip install .',
+                'export THEFUCK_REQUIRE_CONFIRMATION=false',
+                'eval $(thefuck-alias)']) as proc:
+        run(proc, 'ehco test')
+        run(proc, 'fuck')
+        out = read_until(proc)
+        assert out.split('\n')[-2] == 'test\r\r'
diff --git a/tests/functional/test_zsh.py b/tests/functional/test_zsh.py
new file mode 100644
index 00000000..bd311b27
--- /dev/null
+++ b/tests/functional/test_zsh.py
@@ -0,0 +1,50 @@
+import pytest
+from tests.functional.utils import build_container, spawn, run, read_until, \
+    root, functional
+
+containers = [('thefuck/ubuntu-python3-zsh', '''
+FROM ubuntu:latest
+RUN apt-get update
+RUN apt-get install -yy python3 python3-pip python3-dev zsh
+RUN pip3 install -U setuptools
+RUN ln -s /usr/bin/pip3 /usr/bin/pip
+RUN echo "PS1='\\n$ '" > /root/.zshrc
+CMD ["/bin/zsh"]
+'''),
+              ('thefuck/ubuntu-python2-zsh', '''
+FROM ubuntu:latest
+RUN apt-get update
+RUN apt-get install -yy python python-pip python-dev zsh
+RUN pip2 install -U pip setuptools
+RUN echo "PS1='\\n$ '" > /root/.zshrc
+CMD ["/bin/zsh"]
+''')]
+
+
+@functional
+@pytest.mark.parametrize('tag, dockerfile', containers)
+def test_with_confirmation(tag, dockerfile):
+    build_container(tag, dockerfile)
+    with spawn(tag, '{}:/src'.format(root),
+               ['cd /src', 'pip install .', 'eval $(thefuck-alias)']) as proc:
+        run(proc, 'ehco "\ntest"')
+        proc.sendline('fuck')
+        read_until(proc, '[')
+        proc.send('\n')
+        read_until(proc)
+        out = read_until(proc)
+        assert out.split('\n')[-3] == 'test\r\r'
+
+
+@functional
+@pytest.mark.parametrize('tag, dockerfile', containers)
+def test_without_confirmation(tag, dockerfile):
+    build_container(tag, dockerfile)
+    with spawn(tag, '{}:/src'.format(root),
+               ['cd /src', 'pip install .',
+                'export THEFUCK_REQUIRE_CONFIRMATION=false',
+                'eval $(thefuck-alias)']) as proc:
+        run(proc, 'ehco "\ntest"')
+        run(proc, 'fuck')
+        out = read_until(proc)
+        assert out.split('\n')[-3] == 'test\r\r'
diff --git a/tests/functional/utils.py b/tests/functional/utils.py
new file mode 100644
index 00000000..684dc93b
--- /dev/null
+++ b/tests/functional/utils.py
@@ -0,0 +1,57 @@
+import sys
+import os
+import pytest
+from contextlib import contextmanager
+import pexpect
+import subprocess
+import shutil
+from tempfile import mkdtemp
+from pathlib import Path
+
+root = str(Path(__file__).parent.parent.parent.resolve())
+
+
+def build_container(tag, dockerfile):
+    tmpdir = mkdtemp()
+    with Path(tmpdir).joinpath('Dockerfile').open('w') as file:
+        file.write(dockerfile)
+    if subprocess.call(['docker', 'build', '--tag={}'.format(tag), tmpdir]) != 0:
+        raise Exception("Can't build container")
+    shutil.rmtree(tmpdir)
+
+
+def read_until(proc, string='\n$ '):
+    text = ''
+    while True:
+        text += proc.read(1)
+        sys.stdout.write(text[-1])
+        sys.stdout.flush()
+        if text.endswith(string):
+            return text
+
+
+def run(proc, cmd):
+    proc.sendline(cmd)
+    return read_until(proc)
+
+
+@contextmanager
+def spawn(tag, volume, prepare=None):
+    if prepare is None:
+        prepare = []
+
+    proc = pexpect.spawnu(
+        'docker run --volume {} --tty=true --interactive=true {}'.format(
+            volume, tag))
+
+    try:
+        for line in prepare:
+            run(proc, line)
+        yield proc
+    finally:
+        proc.terminate()
+
+
+functional = pytest.mark.skipif(
+    not os.environ.get('FUNCTIONAL'),
+    reason='Functional tests are disabled by default.')