def test_rotation(self):
matrix = Matrix33.rotation(90)
vector = matrix.transform(Vector2(1.0, 1.0))
# Fix floating point issues.
x, y = ceil(vector.x), ceil(vector.y)
self.assertEqual((x, y), (-1.0, 1.0))
def test_rotation(self):
matrix = Matrix33.rotation(90)
vector = matrix.transform(Vector2(1.0, 1.0))
# Fix floating point issues.
x, y = ceil(vector.x), ceil(vector.y)
self.assertEqual((x, y), (-1.0, 1.0))
