def test_vmobject_same_num_submobjects_become():
a = Square()
b = RegularPolygon(n=6)
a.become(b)
np.testing.assert_array_equal(a.points, b.points)
assert len(a.submobjects) == len(b.submobjects)
def test_vmobject_different_num_points_and_submobjects_become():
a = Square()
b = VGroup(Circle(), Square())
a.become(b)
np.testing.assert_array_equal(a.points, b.points)
assert len(a.submobjects) == len(b.submobjects)
def test_vmobject_same_points_become():
a = Square()
b = Circle()
a.become(b)
np.testing.assert_array_equal(a.points, b.points)
assert len(a.submobjects) == len(b.submobjects)