def test_right(): dx, dy, dz = from_polar(1, 0, 0) - [1, 0, 0] assert abs(dx) < 1e-15 assert abs(dy) < 1e-15 assert abs(dz) < 1e-15
def test_up(): dx, dy, dz = from_polar(1, 0.25 * tau, 0) - [0, 0, 1] assert abs(dx) < 1e-15 assert abs(dy) < 1e-15 assert abs(dz) < 1e-15
def test_left_up(): sqrt2 = 0.5**0.5 dx, dy, dz = from_polar(1, 0.125 * tau, 0.5 * tau) - [-sqrt2, 0, sqrt2] assert abs(dx) < 1e-15 assert abs(dy) < 1e-15 assert abs(dz) < 1e-15
def test_down(): dx, dy, dz = from_polar(1, 0, 0.75 * tau) - [0, -1, 0] assert abs(dx) < 1e-15 assert abs(dy) < 1e-15 assert abs(dz) < 1e-15
def test_left_up(): sqrt2 = 0.5 ** 0.5 dx, dy, dz = from_polar(1, 0.125 * tau, 0.5 * tau) - [-sqrt2, 0, sqrt2] assert abs(dx) < 1e-15 assert abs(dy) < 1e-15 assert abs(dz) < 1e-15