add pytest plugin tests to improve test coverage

Author: jurko-gospodnetic

tests/test_pytest_plugins.py

@@ -0,0 +1,99 @@
+"""
+Test utility tests, intended to cover use-cases not used in the current
+project test suite, e.g. as shown by the code coverage report.
+
+"""
+import py.path
+import pytest
+
+from tox._pytestplugin import _filedefs_contains
+from tox._pytestplugin import _path_parts
+
+
+class TestInitProj:
+ @pytest.mark.parametrize('kwargs', (
+ {},
+ {'src_root': None},
+ {'src_root': ''},
+ {'src_root': '.'}))
+ def test_no_src_root(self, kwargs, tmpdir, initproj):
+ initproj('black_knight-42', **kwargs)
+ init_file = tmpdir.join('black_knight', 'black_knight', '__init__.py')
+ assert init_file.read_binary() == b"__version__ = '42'"
+
+ def test_existing_src_root(self, tmpdir, initproj):
+ initproj('spam-666', src_root='ham')
+ assert not tmpdir.join('spam', 'spam').check(exists=1)
+ init_file = tmpdir.join('spam', 'ham', 'spam', '__init__.py')
+ assert init_file.read_binary() == b"__version__ = '666'"
+
+ def test_prebuilt_src_dir_with_no_src_root(self, tmpdir, initproj):
+ initproj('spam-1.0', filedefs={'spam': {}})
+ src_dir = tmpdir.join('spam', 'spam')
+ assert src_dir.check(dir=1)
+ assert not src_dir.join('__init__.py').check(exists=1)
+
+ def test_prebuilt_src_dir_with_src_root(self, tmpdir, initproj):
+ initproj(
+ 'spam-1.0',
+ filedefs={'incontinentia': {'spam': {'__init__.py': 'buttocks'}}},
+ src_root='incontinentia')
+ assert not tmpdir.join('spam', 'spam').check(exists=1)
+ init_file = tmpdir.join('spam', 'incontinentia', 'spam', '__init__.py')
+ assert init_file.read_binary() == b'buttocks'
+
+ def test_broken_py_path_local_join_workaround_on_Windows(
+ self, tmpdir, initproj, monkeypatch):
+ # construct an absolute folder path for our src_root folder without the
+ # Windows drive indicator
+ src_root = tmpdir.join('spam')
+ src_root = _path_parts(src_root)
+ src_root[0] = ''
+ src_root = '/'.join(src_root)
+
+ # make sure tmpdir drive is the current one so the constructed src_root
+ # folder path gets interpreted correctly on Windows
+ monkeypatch.chdir(tmpdir)
+
+ # will throw an assertion error if the bug is not worked around
+ initproj('spam-666', src_root=src_root)
+
+ init_file = tmpdir.join('spam', 'spam', '__init__.py')
+ assert init_file.read_binary() == b"__version__ = '666'"
+
+
+class TestPathParts:
+ @pytest.mark.parametrize('input, expected', (
+ ('', []),
+ ('/', ['/']),
+ ('//', ['//']),
+ ('/a', ['/', 'a']),
+ ('/a/', ['/', 'a']),
+ ('/a/b', ['/', 'a', 'b']),
+ ('a', ['a']),
+ ('a/b', ['a', 'b'])))
+ def test_path_parts(self, input, expected):
+ assert _path_parts(input) == expected
+
+ def test_on_py_path(self):
+ cwd_parts = _path_parts(py.path.local())
+ folder_parts = _path_parts(py.path.local('a/b/c'))
+ assert folder_parts[len(cwd_parts):] == ['a', 'b', 'c']
+
+
+@pytest.mark.parametrize('base, filedefs, target, expected', (
+ ('/base', {}, '', False),
+ ('/base', {}, '/base', False),
+ ('/base', {'a': {'b': 'data'}}, '', True),
+ ('/base', {'a': {'b': 'data'}}, 'a', True),
+ ('/base', {'a': {'b': 'data'}}, 'a/b', True),
+ ('/base', {'a': {'b': 'data'}}, 'a/x', False),
+ ('/base', {'a': {'b': 'data'}}, 'a/b/c', False),
+ ('/base', {'a': {'b': 'data'}}, '/base', True),
+ ('/base', {'a': {'b': 'data'}}, '/base/a', True),
+ ('/base', {'a': {'b': 'data'}}, '/base/a/b', True),
+ ('/base', {'a': {'b': 'data'}}, '/base/a/x', False),
+ ('/base', {'a': {'b': 'data'}}, '/base/a/b/c', False),
+ ('/base', {'a': {'b': 'data'}}, '/a', False)))
+def test_filedefs_contains(base, filedefs, target, expected):
+ assert bool(_filedefs_contains(base, filedefs, target)) == expected