Programming Microsoft Dynamics NAV - Fifth Edition

Debugging with ERROR

One of the challenges of testing is maintaining repeatability. Quite often, we need to test several times using the same data, but the test changes the data. If we have a small database, we can always back up the database and start with a fresh copy each time. However, that can be inefficient and, if the database is large, impractical. If we are using the built-in NAV Test functions, we can roll back any database changes so the tests are totally repeatable. Another alternative is to conclude our test with an ERROR function to test and retest with exactly the same data.

The ERROR function forces a runtime error status, which means the database is not updated (it is rolled back to the status at the beginning of the process). ...