def test_swizzle_3d_012(self):
"""Swap of a 3D function arguments: identity."""
x, y, z = 4.2, 11, -0.3
swizzled_function = mappers.Swizzle3D(self.function3d, (0, 1, 2))
self.assertAlmostEqual(swizzled_function(x, y, z),
self.function3d(x, y, z),
places=10)
def test_swizzle_3d_120(self):
"""Swap of a 3D function arguments: x,y,z -> y,z,x."""
x, y, z = 4.2, 11, -0.3
swizzled_function = mappers.Swizzle3D(self.function3d, (1, 2, 0))
self.assertAlmostEqual(swizzled_function(x, y, z),
self.function3d(y, z, x),
places=10)
def test_swizzle_3d_201(self):
"""Swap of a 3D function arguments: x,y,z -> z,x,y."""
x, y, z = 4.2, 11, -0.3
swizzled_function = mappers.Swizzle3D(self.function3d, (2, 0, 1))
self.assertAlmostEqual(swizzled_function(x, y, z),
self.function3d(z, x, y),
places=10)