public void ParameterTypesNegateTest()
 {
     Assert.AreEqual(false, ParameterTypes.NegateObject(true));
     Assert.AreEqual("not ok", ParameterTypes.NegateObject("ok"));
     Assert.AreEqual(-1L, ParameterTypes.NegateObject(1));
     Assert.AreEqual("anything but null", ParameterTypes.NegateObject(null));
 }