assertNullMsg

assertNullMsg(message: String;
              object:  Object);

The assertNullMsg method of the JadeTestCase class is invoked by a user test method to confirm that the object specified by the object parameter is a null reference.

A message is provided in the message parameter for the case when the test fails, indicated by the object parameter being a null reference.

The following code example shows the use of the assertNullMsg method in a user test method.

calculatorTeardown() unitTest;
begin
    delete calculator;
    assertNullMsg("Calculator still present", calculator);
end;

A failure in the test method results in the testFailure method being executed by an object implementing the JadeTestListenerIF interface. For details, see "Using the JADE Testing Framework", in Chapter 17 of the JADE Developer’s Reference.