def test_disconnect(self):
""" disconnect """
def on_class_loaded(cls):
""" Called when a class is loaded. """
on_class_loaded.cls = cls
return
# To register with 'MetaHasTraits' we use 'module_name.class_name'.
hook = ClassLoadHook(
class_name = ClassLoadHookTestCase.__module__ + '.Foo',
on_load = on_class_loaded
)
hook.connect()
class Foo(HasTraits):
pass
self.assertEqual(Foo, on_class_loaded.cls)
# 'Reset' the listener,
on_class_loaded.cls = None
# Now disconnect.
hook.disconnect()
class Foo(HasTraits):
pass
self.assertEqual(None, on_class_loaded.cls)
return
def test_class_already_loaded(self):
""" class already loaded """
def on_class_loaded(cls):
""" Called when a class is loaded. """
on_class_loaded.cls = cls
# To register with 'MetaHasTraits' we use 'module_name.class_name'.
hook = ClassLoadHook(
class_name=self._get_full_class_name(ClassLoadHookTestCase),
on_load=on_class_loaded,
)
hook.connect()
# Make sure the 'on_load' got called immediately because the class is
# already loaded.
self.assertEqual(ClassLoadHookTestCase, on_class_loaded.cls)
def test_connect(self):
""" connect """
def on_class_loaded(cls):
""" Called when a class is loaded. """
on_class_loaded.cls = cls
# To register with 'MetaHasTraits' we use 'module_name.class_name'.
hook = ClassLoadHook(
class_name=ClassLoadHookTestCase.__module__ + ".Foo",
on_load=on_class_loaded,
)
hook.connect()
class Foo(HasTraits):
pass
self.assertEqual(Foo, on_class_loaded.cls)
class PluginA(Plugin):
id = 'A'
class_load_hooks = List([
ClassLoadHook(
class_name=CorePluginTestCase.__module__ + '.Baz',
on_load=on_class_loaded,
)
],
contributes_to='envisage.class_load_hooks')
class PluginA(Plugin):
id = "A"
class_load_hooks = List(
[
ClassLoadHook(
class_name=CorePluginTestCase.__module__ + ".Baz",
on_load=on_class_loaded,
)
],
contributes_to="envisage.class_load_hooks",
)
def test_disconnect(self):
""" disconnect """
def on_class_loaded(cls):
""" Called when a class is loaded. """
on_class_loaded.cls = cls
return
# To register with 'MetaHasTraits' we use 'module_name.class_name'.
hook = ClassLoadHook(
class_name=ClassLoadHookTestCase.__module__ + '.Foo',
on_load=on_class_loaded)
hook.connect()
class Foo(HasTraits):
pass
self.assertEqual(Foo, on_class_loaded.cls)
# 'Reset' the listener,
on_class_loaded.cls = None
# Now disconnect.
hook.disconnect()
class Foo(HasTraits):
pass
self.assertEqual(None, on_class_loaded.cls)
return
def test_class_already_loaded(self):
""" class already loaded """
def on_class_loaded(cls):
""" Called when a class is loaded. """
on_class_loaded.cls = cls
return
# To register with 'MetaHasTraits' we use 'module_name.class_name'.
hook = ClassLoadHook(
class_name = self._get_full_class_name(ClassLoadHookTestCase),
on_load = on_class_loaded
)
hook.connect()
# Make sure the 'on_load' got called immediately because the class is
# already loaded.
self.assertEqual(ClassLoadHookTestCase, on_class_loaded.cls)
return