class FadeTests(TestCase):
def setUp(self):
super(FadeTests, self).setUp()
self.clock = FakeClock()
self.schedule = Scheduler(self.clock,
reactor=TestReactor()).schedule
def test_fadein(self):
fadein = FadeIn(min=0, max=40)
self.schedule(fadein).start(1, False)
velocities = []
self.schedule(lambda : velocities.append(fadein.current)).start(1, False)
self.clock.tickUntil(127)
self.assertEquals(velocities, range(1, 41) + [40] * 87)
def test_fadeout(self):
fadeout = FadeOut(min=0, max=40)
self.schedule(fadeout).start(1, False)
velocities = []
self.schedule(lambda : velocities.append(fadeout.current)).start(1, False)
self.clock.tickUntil(127)
self.assertEquals(velocities, range(39, -1, -1) + [0] * 87)
def test_fadeinout(self):
called = [ False ]
def outro():
called[0] = True
fadeinout = FadeInOut(min=0, max=40, outro=outro, hold_for_iterations=10)
self.schedule(fadeinout).start(1, False)
velocities = []
self.schedule(lambda : velocities.append(fadeinout.current)).start(1, False)
self.clock.tickUntil(127)
self.assertEquals(velocities, range(1, 40) + [40] * 10 + range(39,-1,-1) + [0] * 38)
self.assert_(called[0])
def setUp(self):
super(FadeTests, self).setUp()
self.clock = FakeClock()
self.schedule = Scheduler(self.clock,
reactor=TestReactor()).schedule
