public void QuaternionDotTest() { Quaternion a = new Quaternion(1.0f, 2.0f, 3.0f, 4.0f); Quaternion b = new Quaternion(5.0f, 6.0f, 7.0f, 8.0f); Single expected = 70.0f; Single actual; actual = Quaternion.Dot(a, b); Assert.True(MathHelper.Equal(expected, actual), $"Quaternion.Dot did not return the expected value: expected {expected} actual {actual}"); }