def test_dependency_list(self):
mgr = ComponentManager()
loader = YamlConfigurationLoader(
os.path.join(os.path.dirname(__file__),
"test_dependency_list.yml"))
mgr.launch_configuration(loader.load_configuration())
a = mgr.components["a"]
b = mgr.components["b"]
c = mgr.components["c"]
d = mgr.components["d"]
self.assertListEqual(a.others.get_list(), [b, c, d])
for comp in (b, c, d):
self.assertListEqual(comp.others.get_list(), [])
# list.index implementation
self.assertEqual(a.others.index(b), 0)
self.assertEqual(a.others.index(c), 1)
self.assertEqual(a.others.index(d), 2)
# list subscript implementation
self.assertEqual(a.others[0], b)
self.assertEqual(a.others[1], c)
self.assertEqual(a.others[2], d)
# list.count implementation
self.assertEqual(a.others.count(b), 1)
self.assertEqual(a.others.count(c), 1)
self.assertEqual(a.others.count(d), 1)
# list __reversed__ implementation
self.assertListEqual(list(reversed(a.others)), [d, c, b])
def test_configuration_extension(self):
mgr = ComponentManager()
loader = YamlConfigurationLoader(
os.path.join(os.path.dirname(__file__),
"test_configuration_child.yml"))
mgr.launch_configuration(loader.load_configuration(), debug=3)
a = mgr.components["a"]
b = mgr.components["b"]
self.assertEqual(b.next, a)
def test_dependency_list(self):
mgr = ComponentManager()
loader = PythonLoader('epoxy.test.test_python_loader:data')
mgr.launch_configuration(loader.load_configuration())
a = mgr.components["a"]
b = mgr.components["b"]
c = mgr.components["c"]
self.assertEqual(b.next, a)
self.assertEqual(c.next, b)
def test_graph_ordering(self):
mgr = ComponentManager()
loader = YamlConfigurationLoader(
os.path.join(os.path.dirname(__file__), "test.yml"))
graph = mgr.build_component_graph(loader.load_configuration())
ordering = graph.get_ordering()
o = [x.name for x in ordering]
self.assertEqual(len(ordering), 5) # our 4 plus component_manager
self.assert_(o.index("b") > o.index("a"))
self.assert_(o.index("c") > o.index("a"))
self.assert_(o.index("d") > o.index("c"))
def test_subgraph_cycle_detection(self):
mgr = ComponentManager()
loader = YamlConfigurationLoader(
os.path.join(os.path.dirname(__file__), "test.yml"))
configuration = loader.load_configuration()
# Change class to invalid component
configuration['components']['a']['dependencies'] = {'previous': 'd'}
with self.assertRaises(ValueError):
mgr.launch_subgraph(configuration, 'd:main')
def test_missing_component(self):
mgr = ComponentManager()
loader = YamlConfigurationLoader(
os.path.join(os.path.dirname(__file__), "test.yml"))
configuration = loader.load_configuration()
# Delete required component
del configuration['components']['a']
with self.assertRaises(ValueError):
mgr.launch_subgraph(configuration, 'd:main')
def test_missing_item_in_dep_list(self):
mgr = ComponentManager()
loader = YamlConfigurationLoader(
os.path.join(os.path.dirname(__file__),
"test_dependency_list.yml"))
configuration = loader.load_configuration()
# Delete component b
del configuration['components']['b']
with self.assertRaises(ValueError):
mgr.launch_configuration(configuration)
def test_invalid_class(self):
mgr = ComponentManager()
loader = YamlConfigurationLoader(
os.path.join(os.path.dirname(__file__), "test.yml"))
configuration = loader.load_configuration()
# Change class to invalid component
configuration['components']['a']['class'] = \
'epoxy.test.test_core:InvalidComponent'
with self.assertRaises(AttributeError):
mgr.launch_subgraph(configuration, 'd:main')
def test_graph_construction(self):
mgr = ComponentManager()
loader = YamlConfigurationLoader(
os.path.join(os.path.dirname(__file__), "test.yml"))
mgr.launch_configuration(loader.load_configuration())
a = mgr.components["a"]
b = mgr.components["b"]
c = mgr.components["c"]
d = mgr.components["d"]
self.assertEqual(a.previous, None)
self.assertEqual(b.previous, a)
self.assertEqual(c.previous, a)
self.assertEqual(d.previous, c)
def test_subgraph_construction(self):
mgr = ComponentManager()
loader = YamlConfigurationLoader(
os.path.join(os.path.dirname(__file__), "test.yml"))
mgr.launch_subgraph(loader.load_configuration(), 'd:main')
a = mgr.components["a"]
with self.assertRaises(KeyError):
mgr.components["b"]
c = mgr.components["c"]
d = mgr.components["d"]
self.assertEqual(a.previous, None)
self.assertEqual(c.previous, a)
self.assertEqual(d.previous, c)
self.assertFalse(a.is_main)
self.assertFalse(c.is_main)
self.assertTrue(d.is_main)
def test_entry_point(self):
mgr = ComponentManager()
loader = YamlConfigurationLoader(
os.path.join(os.path.dirname(__file__), "test.yml"))
configuration = loader.load_configuration()
# Add entry-point to configuration
configuration['entry-point'] = 'd:main'
mgr.launch_configuration(configuration)
a = mgr.components["a"]
b = mgr.components["b"]
c = mgr.components["c"]
d = mgr.components["d"]
self.assertFalse(a.is_main)
self.assertFalse(b.is_main)
self.assertFalse(c.is_main)
self.assertTrue(d.is_main)
def setUp(self):
self.mgr = ComponentManager()
self.loader = YamlConfigurationLoader(VALID_TEST_YAML)
self.invalid_loader = YamlConfigurationLoader(INVALID_TEST_YAML)
self.log = mock.Mock()
epoxy_core.log = self.log
