def testGetFactoryContext(self):
"""
Tests the _get_factory_context() method
"""
class DummyClass(object):
pass
class ChildClass(DummyClass):
pass
# Assert the field doesn't exist yet
self.assertRaises(AttributeError, getattr, DummyClass,
constants.IPOPO_FACTORY_CONTEXT)
# Convert the parent into a component
DummyClass = decorators.ComponentFactory("dummy-factory")(
decorators.Requires("field", "req")(DummyClass))
# Get the context
class_context = decorators.get_factory_context(DummyClass)
self.assertIsNotNone(decorators.get_factory_context(DummyClass),
"Invalid factory context")
# The child has a copy of the parent context
child_context = decorators.get_factory_context(ChildClass)
self.assertIsNot(child_context, class_context,
"The child must have a copy of the context")
def testRequiresMap(self):
"""
Tests the @RequiresMap decorator
"""
class DummyClass(object):
pass
def method():
pass
# Empty field or specification
for empty in (None, "", " "):
self.assertRaises(ValueError, decorators.RequiresMap,
empty, "spec", "key")
self.assertRaises(ValueError, decorators.RequiresMap,
"field", empty, "key")
# Empty key
for empty in (None, ""):
self.assertRaises(ValueError, decorators.RequiresMap,
"field", "spec", empty)
# Invalid field or specification type
for invalid in ([1, 2, 3], tuple((1, 2, 3)), 123):
self.assertRaises(TypeError, decorators.Requires, invalid)
self.assertRaises(
ValueError, decorators.Requires, "field", invalid)
# Invalid target
for invalid in (None, method, 123):
self.assertRaises(TypeError, decorators.Requires("field", "spec"),
invalid)