Using the test runner, you can run a test suite or the individual test cases within a suite. A test suite (a file containing multiple test cases) can be one of the following formats: .dll .int, or .gnt.
If you run a test suite from the Visual COBOL command line prompt, the options you specify are applied to all test cases that are run. You can also use metadata embedded in your test cases, enabling you to selectively run test cases that have been marked with a certain trait (the MFU-MD-TRAITS variable), or prioritize certain test cases over others (the MFU-MD-TESTCASE-PRIORITY variable).
Using test fixture files (.mfu files) is another way of running test suites or one or more test cases. These files provide some additional options that you can apply to individual test cases.