tests: Add test_cmake/test_wheel

* Waiting a new release of pytest-plugins (including
  man-group/pytest-plugins#36) is done, we add a dependency to
  jcfr/pytest-plugins@pytest-shutil-2016-11-08-c50ac56 generated using [1]

[1] https://gist.github.com/jcfr/19a360f541b5caae5f31ac31c83e4f65/bae647ba9a0182ff9126a863805a14077f81bd2a

Author: jcfr

Diff for: .coveragerc

@@ -0,0 +1,7 @@
+[run]
+branch = True
+include = cmake/*.py
+omit = cmake/_version.py
+
+[xml]
+output = tests/coverage.xml

Diff for: cmake/__init__.py

@@ -13,6 +13,13 @@
 if platform.system().lower() == "darwin":
     CMAKE_DATA = os.path.join(CMAKE_DATA, 'CMake.app', 'Contents')
 
+# Support running tests from the source tree
+if not os.path.exists(CMAKE_DATA):
+    _cmake_data = os.path.abspath(os.path.join(
+        os.path.dirname(__file__), '../_skbuild/cmake-install/cmake/data'))
+    if os.path.exists(_cmake_data):
+        CMAKE_DATA = _cmake_data
+
 CMAKE_BIN_DIR = os.path.join(CMAKE_DATA, 'bin')
 CMAKE_DOC_DIR = os.path.join(CMAKE_DATA, 'doc')
 CMAKE_SHARE_DIR = os.path.join(CMAKE_DATA, 'share')

Diff for: requirements-dev.txt

@@ -1,2 +1,9 @@
+codecov==2.0.5
+coverage==4.2
 flake8==3.0.4
+pytest==3.0.3
+pytest-cov==2.4.0
+pytest-runner==2.9
+git+https://github.com/jcfr/pytest-plugins@pytest-shutil-2016-11-08-c50ac56#egg=pytest-shutil
+pytest-virtualenv==1.2.2
 scikit-build==0.4.0

Diff for: scikit-ci.yml

@@ -39,8 +39,13 @@ build:
     - python setup.py --hide-listing sdist
     - $<RUN_ENV> python setup.py --hide-listing bdist_wheel
 
+test:
+  commands:
+    - python setup.py test
+
 after_test:
   commands:
+    - codecov -X gcov --required --file ./tests/coverage.xml
     - pip install girder-client==2.0.0
     - python: |
               import girder_client, os, subprocess

Diff for: setup.cfg

@@ -1,3 +1,6 @@
+[aliases]
+test = pytest
+
 [flake8]
 max-line-length: 80
 # Whether to display the pep8 instructions on failure (can be quite verbose)
@@ -9,6 +12,10 @@ max-complexity: 14
 format: pylint
 exclude: .git,.idea,.eggs,__pycache__,.tox,_skbuild,src,versioneer.py
 
+[tool:pytest]
+testpaths = tests
+addopts = -v --cov --cov-report xml
+
 [versioneer]
 VCS = git
 versionfile_source = cmake/_version.py

Diff for: setup.py

@@ -1,5 +1,6 @@
 #!/usr/bin/env python
 
+import sys
 import versioneer
 
 from pip.req import parse_requirements
@@ -9,8 +10,16 @@
 def _parse_requirements(filename):
     return [str(ir.req) for ir in parse_requirements(filename, session=False)]
 
+requirements = []
 dev_requirements = _parse_requirements('requirements-dev.txt')
 
+# Require pytest-runner only when running tests
+pytest_runner = (['pytest-runner>=2.0,<3dev']
+                 if any(arg in sys.argv for arg in ('pytest', 'test'))
+                 else [])
+
+setup_requires = pytest_runner
+
 setup(
     name='cmake',
 
@@ -61,6 +70,7 @@ def _parse_requirements(filename):
 
     keywords='CMake build c++ fortran cross-platform cross-compilation',
 
-    install_requires=[],
+    install_requires=requirements,
     tests_require=dev_requirements,
+    setup_requires=setup_requires
     )

Diff for: tests/__init__.py

@@ -0,0 +1,12 @@
+
+import sys
+
+from contextlib import contextmanager
+
+
+@contextmanager
+def push_argv(argv):
+    old_argv = sys.argv
+    sys.argv = argv
+    yield
+    sys.argv = old_argv

Diff for: tests/test_cmake.py

@@ -0,0 +1,17 @@
+
+import pytest
+
+import cmake
+
+from . import push_argv
+
+
+def test_cmake_module():
+    with push_argv(["cmake.py", "--version"]), pytest.raises(SystemExit):
+        cmake.cmake()
+
+    with push_argv(["cpack.py", "--version"]), pytest.raises(SystemExit):
+        cmake.cpack()
+
+    with push_argv(["ctest.py", "--version"]), pytest.raises(SystemExit):
+        cmake.ctest()

Diff for: tests/test_wheel.py

@@ -0,0 +1,29 @@
+
+import os
+import textwrap
+
+from path import Path
+
+DIST_DIR = os.path.abspath(os.path.join(os.path.dirname(__file__), '../dist'))
+
+
+def test_command_line(virtualenv, tmpdir):
+    assert len(Path(DIST_DIR).files(pattern="*.whl")) == 1
+
+    virtualenv.install_package("coverage==4.2")
+    virtualenv.run("pip install %s/*" % DIST_DIR)
+
+    expected_version = "3.6.2"
+
+    for executable_name in ["cmake", "cpack", "ctest"]:
+        output = virtualenv.run(
+            "%s --version" % executable_name, capture=True).splitlines()[0]
+        assert output == "%s version %s" % (executable_name, expected_version)
+
+    test_script = tmpdir.join("test_cmake.cmake")
+    test_script.write(textwrap.dedent(r"""
+    message("${CMAKE_COMMAND}")
+    """))
+
+    output = virtualenv.run("cmake -P %s" % str(test_script), capture=True)
+    assert output.startswith(virtualenv.virtualenv)