public void it_should_throw_exception()
 {
     Assert.Throws <InvalidPayloadValidatorException>(() => PayloadValidatorInvoker.ValidatePayload(typeof(PostResource), "POST", "\"payload\""));
 }
 public void SetUp()
 {
     _errorMessage = PayloadValidatorInvoker.ValidatePayload(typeof(PostResource), "POST", "\"payload\"");
 }