I want to do an assertion on two variables both declared with the BIT-datatype, but I have noticed that a AssertEquals_BIT() does not exist. What do I do?

The reason a AssertEquals_BIT() does not exist is that TwinCAT does not allow a BIT-datatype as a variable input. If you have data declared with the BIT-type, the easiest way to do an assertion on these is to do a BIT_TO_BOOL() conversion and use the AssertEquals_BOOL().

TEST('Testing_of_BIT_Type');

AssertEquals_BOOL(Expected := BIT_TO_BOOL(VariableDeclaredAsBit_A),
                  Actual := BIT_TO_BOOL(VariableDeclaredAsBit_B),
                  Message := 'The variables differ');

TEST_FINISHED();

Required TcUnit version: 1.0 or later