def test_apply_transform(self):
translatable = Translatable((10, 20))
angle = 145
rotatable = Rotatable(angle)
self.__backend.create_canvas()
self.__backend.push_surface()
self.__backend.apply_transform(translatable)
matrix = self.__backend.ctx().get_matrix()
assert matrix[4] == 10
assert matrix[5] == 20
self.__backend.pop_surface()
self.__backend.push_surface()
self.__backend.apply_transform(rotatable)
matrix = self.__backend.ctx().get_matrix()
c = math.cos(math.radians(angle))
s = math.sin(math.radians(angle))
assert sum(map(operator.sub, matrix, (c, s, -1 * s, c, 0, 0))) == 0
self.__backend.pop_surface()
def test_init(self):
rotatable = Rotatable()
assert rotatable != None
assert rotatable.angle() == 0
def test_angle(self):
rotatable = Rotatable()
rotatable.set_angle(46)
assert rotatable.angle() == 46
rotatable.set_angle(-170)
assert rotatable.angle() == -170
def test_init(self):
rotatable = Rotatable()
assert rotatable != None
assert rotatable.angle() == 0
def test_angle(self):
rotatable = Rotatable()
rotatable.set_angle(46)
assert rotatable.angle() == 46
rotatable.set_angle(-170)
assert rotatable.angle() == -170