Move tests from .travis.yml to tests/

The tests should be runnable from outside Travis CI.
Creating a separate script also makes the YAML lines
simpler, and long comments added to explain the scipts.

Closes #189
Related to #183

.travis.yml

@@ -17,27 +17,10 @@ install:
 script:
   - docker images
   - >
-    docker run -t -i coala-docker /bin/sh -c "
-      set -e -x
-      export OS_NAME=posix;
-      cd /coala; python3 -m pytest;
-      cd /coala-bears;
-      rm bears/Constants.py;  # There are no tests covering this module
-      rm
-        bears/c_languages/CSharpLintBear.py
-        tests/c_languages/CSharpLintBearTest.py
-        bears/java/InferBear.py
-        tests/java/InferBearTest.py
-        bears/haskell/GhcModBear.py
-        tests/haskell/GhcModBearTest.py;
-      rm -r
-        bears/verilog
-        tests/verilog/;
-      python3 -m pytest --cov --cov-fail-under=100;
-      cd /tmp;
-      svn co https://github.com/githubtraining/hellogitworld.git;
-      bzr branch lp:govcstestbzrrepo;
-      hg clone https://bitbucket.org/fracai/empty-hg;
+    docker run -t -i --volume=$(pwd)/tests:/work coala-docker /bin/sh -c "
+      set -e -x;
+      /work/pytest.sh;
+      /work/vcs.sh;
     "
   # Verify MarkdownBear works outside of coala-bears directory.
   # See https://github.com/coala/coala-bears/issues/1235

tests/pytest.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+set -e -x
+
+export OS_NAME=posix;
+cd /coala; python3 -m pytest;
+cd /coala-bears;
+rm bears/Constants.py;  # There are no tests covering this module
+rm bears/c_languages/CSharpLintBear.py tests/c_languages/CSharpLintBearTest.py;
+rm bears/java/InferBear.py tests/java/InferBearTest.py;
+rm bears/haskell/GhcModBear.py tests/haskell/GhcModBearTest.py;
+rm -r bears/verilog tests/verilog/;
+python3 -m pytest --cov --cov-fail-under=100;

tests/vcs.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+# This script verifies that VCS fetching is possible,
+# even after the Dockerfile ruthlessly removes parts
+# of the VCS packages because they have lots of
+# unnecessary dependencies for unneeded features.
+
+set -e -x
+
+cd /tmp;
+svn co https://github.com/githubtraining/hellogitworld.git;
+bzr branch lp:govcstestbzrrepo;
+hg clone https://bitbucket.org/fracai/empty-hg;