def test_animate_with_args_misplaced():
s = Square()
scale_factor = 2
run_time = 2
with pytest.raises(ValueError, match="must be passed before"):
s.animate.scale(scale_factor)(run_time=run_time)
with pytest.raises(ValueError, match="must be passed before"):
s.animate(run_time=run_time)(run_time=run_time).scale(scale_factor)
def test_animate_with_args():
s = Square()
scale_factor = 2
run_time = 2
anim = s.animate(run_time=run_time).scale(scale_factor).build()
assert anim.mobject.target.width == scale_factor * s.width
assert anim.run_time == run_time
def test_chained_animate_with_args():
s = Square()
scale_factor = 2
direction = np.array((1, 1, 0))
run_time = 2
anim = s.animate(
run_time=run_time).scale(scale_factor).shift(direction).build()
assert (anim.mobject.target.width == scale_factor * s.width
and (anim.mobject.target.get_center() == direction).all())
assert anim.run_time == run_time