def test_extensions_are_not_loaded_for_plugins_unaware_of_extensions(self):
class ExtensionUnawarePlugin(object):
"""This plugin does not implement supports_extension method.
Extensions will not be loaded when this plugin is used.
"""
pass
plugin_info = {constants.CORE: ExtensionUnawarePlugin()}
ext_mgr = extensions.PluginAwareExtensionManager('', plugin_info)
ext_mgr.add_extension(ext_stubs.StubExtension("e1"))
self.assertNotIn("e1", ext_mgr.extensions)
def test_extension_loaded_for_non_core_plugin(self):
class NonCorePluginExtenstion(ext_stubs.StubExtension):
def get_plugin_interface(self):
return None
stub_plugin = ext_stubs.StubPlugin(supported_extensions=["e1"])
plugin_info = {constants.DUMMY: stub_plugin}
with mock.patch("tacker.api.extensions.PluginAwareExtensionManager."
"check_if_plugin_extensions_loaded"):
ext_mgr = extensions.PluginAwareExtensionManager('', plugin_info)
ext_mgr.add_extension(NonCorePluginExtenstion("e1"))
self.assertIn("e1", ext_mgr.extensions)
def test_extensions_not_loaded_for_plugin_without_expected_interface(self):
class PluginWithoutExpectedIface(object):
"""Does not implement get_foo method as expected by extension."""
supported_extension_aliases = ["supported_extension"]
plugin_info = {constants.CORE: PluginWithoutExpectedIface()}
with mock.patch("tacker.api.extensions.PluginAwareExtensionManager."
"check_if_plugin_extensions_loaded"):
ext_mgr = extensions.PluginAwareExtensionManager('', plugin_info)
ext_mgr.add_extension(
ext_stubs.ExtensionExpectingPluginInterface(
"supported_extension"))
self.assertNotIn("e1", ext_mgr.extensions)
def test_unsupported_extensions_are_not_loaded(self):
stub_plugin = ext_stubs.StubPlugin(supported_extensions=["e1", "e3"])
plugin_info = {constants.CORE: stub_plugin}
with mock.patch("tacker.api.extensions.PluginAwareExtensionManager."
"check_if_plugin_extensions_loaded"):
ext_mgr = extensions.PluginAwareExtensionManager('', plugin_info)
ext_mgr.add_extension(ext_stubs.StubExtension("e1"))
ext_mgr.add_extension(ext_stubs.StubExtension("e2"))
ext_mgr.add_extension(ext_stubs.StubExtension("e3"))
self.assertIn("e1", ext_mgr.extensions)
self.assertNotIn("e2", ext_mgr.extensions)
self.assertIn("e3", ext_mgr.extensions)
def test_extensions_expecting_tacker_plugin_interface_are_loaded(self):
class ExtensionForQuamtumPluginInterface(ext_stubs.StubExtension):
"""This Extension does not implement get_plugin_interface method.
This will work with any plugin implementing TackerPluginBase
"""
pass
stub_plugin = ext_stubs.StubPlugin(supported_extensions=["e1"])
plugin_info = {constants.CORE: stub_plugin}
with mock.patch("tacker.api.extensions.PluginAwareExtensionManager."
"check_if_plugin_extensions_loaded"):
ext_mgr = extensions.PluginAwareExtensionManager('', plugin_info)
ext_mgr.add_extension(ExtensionForQuamtumPluginInterface("e1"))
self.assertIn("e1", ext_mgr.extensions)
def test_extensions_without_need_for__plugin_interface_are_loaded(self):
class ExtensionWithNoNeedForPluginInterface(ext_stubs.StubExtension):
"""This Extension does not need any plugin interface.
This will work with any plugin implementing TackerPluginBase
"""
def get_plugin_interface(self):
return None
stub_plugin = ext_stubs.StubPlugin(supported_extensions=["e1"])
plugin_info = {constants.CORE: stub_plugin}
with mock.patch("tacker.api.extensions.PluginAwareExtensionManager."
"check_if_plugin_extensions_loaded"):
ext_mgr = extensions.PluginAwareExtensionManager('', plugin_info)
ext_mgr.add_extension(ExtensionWithNoNeedForPluginInterface("e1"))
self.assertIn("e1", ext_mgr.extensions)
def test_extensions_are_loaded_for_plugin_with_expected_interface(self):
class PluginWithExpectedInterface(object):
"""Implements get_foo method as expected by extension."""
supported_extension_aliases = ["supported_extension"]
def get_foo(self, bar=None):
pass
plugin_info = {constants.CORE: PluginWithExpectedInterface()}
with mock.patch("tacker.api.extensions.PluginAwareExtensionManager."
"check_if_plugin_extensions_loaded"):
ext_mgr = extensions.PluginAwareExtensionManager('', plugin_info)
ext_mgr.add_extension(
ext_stubs.ExtensionExpectingPluginInterface(
"supported_extension"))
self.assertIn("supported_extension", ext_mgr.extensions)
