def test_merge_unmergeable(self):
command = self.command
other_command = MoveCommand(
component=self.component, data=(0, 0), previous_position=(50, 50))
with self.assertTraitDoesNotChange(command, 'data'):
merged = command.merge(other_command)
self.assertFalse(merged)
self.assertEqual(command.data, (25, 25))
def test_merge_other_mergeable(self):
command = self.command
command.mergeable = True
other_command = MoveCommand(component=self.component,
mergeable=True,
data=(0, 0),
previous_position=(50, 50))
with self.assertTraitChanges(command, 'data'):
merged = command.merge(other_command)
self.assertTrue(merged)
self.assertEqual(command.data, (0, 0))
self.assertTrue(command.mergeable)
def test_do_no_new_position_no_previous_position_with_data(self):
command = MoveCommand(self.component, data=(25, 25))
self.assertEqual(command.data, (25, 25))
self.assertEqual(command.previous_position, (50, 50))
def test_do_no_new_position(self):
with self.assertRaises(TypeError):
MoveCommand(self.component, previous_position=(50, 50))
def test_do_no_previous_position(self):
command = MoveCommand(self.component, (25, 25))
self.assertEqual(command.previous_position, (50, 50))
def setUp(self):
self.component = Component(position=[50, 50], bounds=[100, 100])
self.component.request_redraw = MagicMock()
self.command = MoveCommand(self.component, (25, 25), (50, 50))