def testDistance3d(self):
        dist = Distance()

        self.assertAlmostEqual(7.071, dist.distance3d([0, 0, 0], [3, 4, 5]), 3)
        self.assertAlmostEqual(10.488, dist.distance3d([0, 0, 0], [5, 6, 7]),
                               3)
        self.assertEqual(0, dist.distance3d([0, 0, 0], [0, 0, 0]))
    def testDistance3d(self):
        dist = Distance()

        self.assertAlmostEqual(7.071, dist.distance3d([0, 0, 0], [3, 4, 5]), 3)
        self.assertAlmostEqual(10.488, dist.distance3d([0, 0, 0], [5, 6, 7]), 3)
        self.assertEqual(0, dist.distance3d([0, 0, 0], [0, 0, 0]))