def test_point_in_circle_center(): ok_(circle.point_in_circle(center=(0, 0), radius=1, point=(0, 0)))
def test_point_in_circle_valid(): ok_(circle.point_in_circle(center=(0, 0), radius=1, point=(0.25, 0.25)))
def test_point_in_circle_invalid(): ok_(not circle.point_in_circle(center=(0, 0), radius=1, point=(1, 1)))