#1248: Reuse Docker images in functional tests

.github/workflows/test.yml

@@ -41,7 +41,10 @@ jobs:
         run: coverage run --source=thefuck,tests -m pytest -v --capture=sys tests
       - name: Run tests (including functional)
         if: matrix.os == 'ubuntu-latest' && matrix.python-version == env.PYTHON_LATEST
-        run: coverage run --source=thefuck,tests -m pytest -v --capture=sys tests --enable-functional
+        run: |
+          docker build -t thefuck/python3 -f tests/Dockerfile --build-arg PYTHON_VERSION=3 .
+          docker build -t thefuck/python2 -f tests/Dockerfile --build-arg PYTHON_VERSION=2 .
+          coverage run --source=thefuck,tests -m pytest -v --capture=sys tests --enable-functional
       - name: Post coverage results
         if: matrix.os == 'ubuntu-latest' && matrix.python-version == env.PYTHON_LATEST
         env:

tests/Dockerfile

@@ -0,0 +1,7 @@
+ARG PYTHON_VERSION
+FROM python:${PYTHON_VERSION}
+RUN apt-get update -y
+RUN apt-get install -yy --no-install-recommends --no-install-suggests fish tcsh zsh
+RUN pip install --upgrade pip
+COPY . /src
+RUN pip install /src

tests/functional/conftest.py

@@ -0,0 +1,6 @@
+import pytest
+
+
+@pytest.fixture(autouse=True)
+def build_container_mock(mocker):
+    return mocker.patch('pytest_docker_pexpect.docker.build_container')

tests/functional/test_bash.py

@@ -4,12 +4,12 @@ from tests.functional.plots import with_confirmation, without_confirmation, \
     select_command_with_arrows, how_to_configure
 
 
-python_3 = (u'thefuck/python3-bash',
-            u'FROM python:3',
+python_3 = (u'thefuck/python3',
+            u'',
             u'sh')
 
-python_2 = (u'thefuck/python2-bash',
-            u'FROM python:2',
+python_2 = (u'thefuck/python2',
+            u'',
             u'sh')
 
 
@@ -28,8 +28,6 @@ echo "instant mode ready: $THEFUCK_INSTANT_MODE"
 def proc(request, spawnu, TIMEOUT):
     container, instant_mode = request.param
     proc = spawnu(*container)
-    proc.sendline(u"pip install /src")
-    assert proc.expect([TIMEOUT, u'Successfully installed'])
     proc.sendline(init_bashrc.format(
         u'--enable-experimental-instant-mode' if instant_mode else ''))
     proc.sendline(u"bash")

tests/functional/test_fish.py

@@ -2,29 +2,13 @@ import pytest
 from tests.functional.plots import with_confirmation, without_confirmation, \
     refuse_with_confirmation, select_command_with_arrows
 
-containers = (('thefuck/python3-fish',
-               u'''FROM python:3
-                   # Use jessie-backports since it has the fish package. See here for details:
-                   # https://github.com/tianon/docker-brew-debian/blob/88ae21052affd8a14553bb969f9d41c464032122/jessie/backports/Dockerfile
-                   RUN awk '$1 ~ "^deb" { $3 = $3 "-backports"; print; exit }' /etc/apt/sources.list > /etc/apt/sources.list.d/backports.list
-                   RUN apt-get update
-                   RUN apt-get install -yy fish''',
-               u'fish'),
-              ('thefuck/python2-fish',
-               u'''FROM python:2
-                   # Use jessie-backports since it has the fish package. See here for details:
-                   # https://github.com/tianon/docker-brew-debian/blob/88ae21052affd8a14553bb969f9d41c464032122/jessie/backports/Dockerfile
-                   RUN awk '$1 ~ "^deb" { $3 = $3 "-backports"; print; exit }' /etc/apt/sources.list > /etc/apt/sources.list.d/backports.list
-                   RUN apt-get update
-                   RUN apt-get install -yy fish''',
-               u'fish'))
+containers = ((u'thefuck/python3', u'', u'fish'),
+              (u'thefuck/python2', u'', u'fish'))
 
 
 @pytest.fixture(params=containers)
 def proc(request, spawnu, TIMEOUT):
     proc = spawnu(*request.param)
-    proc.sendline(u"pip install /src")
-    assert proc.expect([TIMEOUT, u'Successfully installed'])
     proc.sendline(u'thefuck --alias > ~/.config/fish/config.fish')
     proc.sendline(u'fish')
     return proc

tests/functional/test_tcsh.py

@@ -2,23 +2,13 @@ import pytest
 from tests.functional.plots import with_confirmation, without_confirmation, \
     refuse_with_confirmation, select_command_with_arrows
 
-containers = (('thefuck/python3-tcsh',
-               u'''FROM python:3
-                   RUN apt-get update
-                   RUN apt-get install -yy tcsh''',
-               u'tcsh'),
-              ('thefuck/python2-tcsh',
-               u'''FROM python:2
-                   RUN apt-get update
-                   RUN apt-get install -yy tcsh''',
-               u'tcsh'))
+containers = ((u'thefuck/python3', u'', u'tcsh'),
+              (u'thefuck/python2', u'', u'tcsh'))
 
 
 @pytest.fixture(params=containers)
 def proc(request, spawnu, TIMEOUT):
     proc = spawnu(*request.param)
-    proc.sendline(u'pip install /src')
-    assert proc.expect([TIMEOUT, u'Successfully installed'])
     proc.sendline(u'tcsh')
     proc.sendline(u'setenv PYTHONIOENCODING utf8')
     proc.sendline(u'eval `thefuck --alias`')

tests/functional/test_zsh.py

@@ -4,17 +4,8 @@ from tests.functional.plots import with_confirmation, without_confirmation, \
     select_command_with_arrows, how_to_configure
 
 
-python_3 = ('thefuck/python3-zsh',
-            u'''FROM python:3
-                RUN apt-get update
-                RUN apt-get install -yy zsh''',
-            u'sh')
-
-python_2 = ('thefuck/python2-zsh',
-            u'''FROM python:2
-                RUN apt-get update
-                RUN apt-get install -yy zsh''',
-            u'sh')
+python_3 = (u'thefuck/python3', u'', u'sh')
+python_2 = (u'thefuck/python2', u'', u'sh')
 
 
 init_zshrc = u'''echo '
@@ -35,8 +26,6 @@ echo "instant mode ready: $THEFUCK_INSTANT_MODE"
 def proc(request, spawnu, TIMEOUT):
     container, instant_mode = request.param
     proc = spawnu(*container)
-    proc.sendline(u'pip install /src')
-    assert proc.expect([TIMEOUT, u'Successfully installed'])
     proc.sendline(init_zshrc.format(
         u'--enable-experimental-instant-mode' if instant_mode else ''))
     proc.sendline(u"zsh")