1 files changed, 133 insertions, 0 deletions
diff --git a/test/units/plugins/test_plugins.py b/test/units/plugins/test_plugins.py
new file mode 100644
index 0000000..be123b1
--- /dev/null
+++ b/test/units/plugins/test_plugins.py
@@ -0,0 +1,133 @@
+# (c) 2012-2014, Michael DeHaan <michael.dehaan@gmail.com>
+#
+# This file is part of Ansible
+#
+# Ansible is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Ansible is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Ansible.  If not, see <http://www.gnu.org/licenses/>.
+
+
+# Make coding more python3-ish
+from __future__ import (absolute_import, division, print_function)
+__metaclass__ = type
+
+import os
+
+from units.compat import unittest
+from unittest.mock import patch, MagicMock
+from ansible.plugins.loader import PluginLoader, PluginPathContext
+
+
+class TestErrors(unittest.TestCase):
+
+    @patch.object(PluginLoader, '_get_paths')
+    def test_print_paths(self, mock_method):
+        mock_method.return_value = ['/path/one', '/path/two', '/path/three']
+        pl = PluginLoader('foo', 'foo', '', 'test_plugins')
+        paths = pl.print_paths()
+        expected_paths = os.pathsep.join(['/path/one', '/path/two', '/path/three'])
+        self.assertEqual(paths, expected_paths)
+
+    def test_plugins__get_package_paths_no_package(self):
+        pl = PluginLoader('test', '', 'test', 'test_plugin')
+        self.assertEqual(pl._get_package_paths(), [])
+
+    def test_plugins__get_package_paths_with_package(self):
+        # the _get_package_paths() call uses __import__ to load a
+        # python library, and then uses the __file__ attribute of
+        # the result for that to get the library path, so we mock
+        # that here and patch the builtin to use our mocked result
+        foo = MagicMock()
+        bar = MagicMock()
+        bam = MagicMock()
+        bam.__file__ = '/path/to/my/foo/bar/bam/__init__.py'
+        bar.bam = bam
+        foo.return_value.bar = bar
+        pl = PluginLoader('test', 'foo.bar.bam', 'test', 'test_plugin')
+        with patch('builtins.__import__', foo):
+            self.assertEqual(pl._get_package_paths(), ['/path/to/my/foo/bar/bam'])
+
+    def test_plugins__get_paths(self):
+        pl = PluginLoader('test', '', 'test', 'test_plugin')
+        pl._paths = [PluginPathContext('/path/one', False),
+                     PluginPathContext('/path/two', True)]
+        self.assertEqual(pl._get_paths(), ['/path/one', '/path/two'])
+
+        # NOT YET WORKING
+        # def fake_glob(path):
+        #     if path == 'test/*':
+        #         return ['test/foo', 'test/bar', 'test/bam']
+        #     elif path == 'test/*/*'
+        # m._paths = None
+        # mock_glob = MagicMock()
+        # mock_glob.return_value = []
+        # with patch('glob.glob', mock_glob):
+        #     pass
+
+    def assertPluginLoaderConfigBecomes(self, arg, expected):
+        pl = PluginLoader('test', '', arg, 'test_plugin')
+        self.assertEqual(pl.config, expected)
+
+    def test_plugin__init_config_list(self):
+        config = ['/one', '/two']
+        self.assertPluginLoaderConfigBecomes(config, config)
+
+    def test_plugin__init_config_str(self):
+        self.assertPluginLoaderConfigBecomes('test', ['test'])
+
+    def test_plugin__init_config_none(self):
+        self.assertPluginLoaderConfigBecomes(None, [])
+
+    def test__load_module_source_no_duplicate_names(self):
+        '''
+        This test simulates importing 2 plugins with the same name,
+        and validating that the import is short circuited if a file with the same name
+        has already been imported
+        '''
+
+        fixture_path = os.path.join(os.path.dirname(__file__), 'loader_fixtures')
+
+        pl = PluginLoader('test', '', 'test', 'test_plugin')
+        one = pl._load_module_source('import_fixture', os.path.join(fixture_path, 'import_fixture.py'))
+        # This line wouldn't even succeed if we didn't short circuit on finding a duplicate name
+        two = pl._load_module_source('import_fixture', '/path/to/import_fixture.py')
+
+        self.assertEqual(one, two)
+
+    @patch('ansible.plugins.loader.glob')
+    @patch.object(PluginLoader, '_get_paths_with_context')
+    def test_all_no_duplicate_names(self, gp_mock, glob_mock):
+        '''
+        This test goes along with ``test__load_module_source_no_duplicate_names``
+        and ensures that we ignore duplicate imports on multiple paths
+        '''
+
+        fixture_path = os.path.join(os.path.dirname(__file__), 'loader_fixtures')
+
+        gp_mock.return_value = [
+            MagicMock(path=fixture_path),
+            MagicMock(path='/path/to'),
+        ]
+
+        glob_mock.glob.side_effect = [
+            [os.path.join(fixture_path, 'import_fixture.py')],
+            ['/path/to/import_fixture.py']
+        ]
+
+        pl = PluginLoader('test', '', 'test', 'test_plugins')
+        # Aside from needing ``list()`` so we can do a len, ``PluginLoader.all`` returns a generator
+        # so ``list()`` actually causes ``PluginLoader.all`` to run.
+        plugins = list(pl.all())
+        self.assertEqual(len(plugins), 1)
+
+        self.assertIn(os.path.join(fixture_path, 'import_fixture.py'), pl._module_cache)
+        self.assertNotIn('/path/to/import_fixture.py', pl._module_cache)