public void GetValueTest() { Vec3f v = new Vec3f(1, 2, 3); AssertThat(v[0]).IsEqualTo(1); AssertThat(v[1]).IsEqualTo(2); AssertThat(v[2]).IsEqualTo(3); AssertThat(() => v.GetValue(3)).ThrowsExactlyException <IndexOutOfRangeException>(); }