class StateSignalsTests(TestCase):
def setUp(self):
self.model = BlogPost()
self.pre_transition_called = False
self.post_transition_called = False
pre_transition.connect(self.on_pre_transition, sender=BlogPost)
post_transition.connect(self.on_post_transition, sender=BlogPost)
def on_pre_transition(self, sender, instance, name, source, target, **kwargs):
self.assertEqual(instance.state, source)
self.pre_transition_called = True
def on_post_transition(self, sender, instance, name, source, target, **kwargs):
self.assertEqual(instance.state, target)
self.post_transition_called = True
def test_signals_called_on_valid_transition(self):
self.model.publish()
self.assertTrue(self.pre_transition_called)
self.assertTrue(self.post_transition_called)
def test_signals_not_called_on_invalid_transition(self):
self.assertRaises(TransitionNotAllowed, self.model.hide)
self.assertFalse(self.pre_transition_called)
self.assertFalse(self.post_transition_called)
class StateSignalsTests(TestCase):
def setUp(self):
self.model = BlogPost()
self.pre_transition_called = False
self.post_transition_called = False
pre_transition.connect(self.on_pre_transition, sender=BlogPost)
post_transition.connect(self.on_post_transition, sender=BlogPost)
def on_pre_transition(self, sender, instance, name, source, target,
**kwargs):
self.assertEqual(instance.state, source)
self.pre_transition_called = True
def on_post_transition(self, sender, instance, name, source, target,
**kwargs):
self.assertEqual(instance.state, target)
self.post_transition_called = True
def test_signals_called_on_valid_transition(self):
self.model.publish()
self.assertTrue(self.pre_transition_called)
self.assertTrue(self.post_transition_called)
def test_signals_not_called_on_invalid_transition(self):
self.assertRaises(TransitionNotAllowed, self.model.hide)
self.assertFalse(self.pre_transition_called)
self.assertFalse(self.post_transition_called)
class FSMFieldTest(TestCase):
def setUp(self):
self.model = BlogPost()
def test_initial_state_instatiated(self):
self.assertEqual(self.model.state, 'new')
def test_known_transition_should_succeed(self):
self.assertTrue(can_proceed(self.model.publish))
self.model.publish()
self.assertEqual(self.model.state, 'published')
self.assertTrue(can_proceed(self.model.hide))
self.model.hide()
self.assertEqual(self.model.state, 'hidden')
def test_unknow_transition_fails(self):
self.assertFalse(can_proceed(self.model.hide))
self.assertRaises(TransitionNotAllowed, self.model.hide)
def test_state_non_changed_after_fail(self):
self.assertTrue(can_proceed(self.model.remove))
self.assertRaises(Exception, self.model.remove)
self.assertEqual(self.model.state, 'new')
def test_allowed_null_transition_should_succeed(self):
self.model.publish()
self.model.notify_all()
self.assertEqual(self.model.state, 'published')
def test_unknow_null_transition_should_fail(self):
self.assertRaises(TransitionNotAllowed, self.model.notify_all)
self.assertEqual(self.model.state, 'new')
def test_mutiple_source_support_path_1_works(self):
self.model.publish()
self.model.steal()
self.assertEqual(self.model.state, 'stolen')
def test_mutiple_source_support_path_2_works(self):
self.model.publish()
self.model.hide()
self.model.steal()
self.assertEqual(self.model.state, 'stolen')
def test_star_shortcut_succeed(self):
self.assertTrue(can_proceed(self.model.moderate))
self.model.moderate()
self.assertEqual(self.model.state, 'moderated')
class FSMFieldTest(TestCase):
def setUp(self):
self.model = BlogPost()
def test_initial_state_instatiated(self):
self.assertEqual(self.model.state, 'new')
def test_known_transition_should_succeed(self):
self.assertTrue(can_proceed(self.model.publish))
self.model.publish()
self.assertEqual(self.model.state, 'published')
self.assertTrue(can_proceed(self.model.hide))
self.model.hide()
self.assertEqual(self.model.state, 'hidden')
def test_unknow_transition_fails(self):
self.assertFalse(can_proceed(self.model.hide))
self.assertRaises(TransitionNotAllowed, self.model.hide)
def test_state_non_changed_after_fail(self):
self.assertTrue(can_proceed(self.model.remove))
self.assertRaises(Exception, self.model.remove)
self.assertEqual(self.model.state, 'new')
def test_allowed_null_transition_should_succeed(self):
self.model.publish()
self.model.notify_all()
self.assertEqual(self.model.state, 'published')
def test_unknow_null_transition_should_fail(self):
self.assertRaises(TransitionNotAllowed, self.model.notify_all)
self.assertEqual(self.model.state, 'new')
def test_mutiple_source_support_path_1_works(self):
self.model.publish()
self.model.steal()
self.assertEqual(self.model.state, 'stolen')
def test_mutiple_source_support_path_2_works(self):
self.model.publish()
self.model.hide()
self.model.steal()
self.assertEqual(self.model.state, 'stolen')
def test_star_shortcut_succeed(self):
self.assertTrue(can_proceed(self.model.moderate))
self.model.moderate()
self.assertEqual(self.model.state, 'moderated')
