In Chapter 3, The Test Tool and Standard Tests, we introduced you to the test tool and we used it frequently during the work we did on the test examples. We applied it to test the test after having inserted a bug to let the verification error. Next to VS Code, your coding tool, and debugger, the test tool is your best friend. Keep it running while you develop, "do not wait till the code is ready, verify each atomic change by running the tests", as mentioned previously.
Create a specific test suite to hold the test codeunits that relate to the code you are working on. In most of your projects, it’s very likely, as with the LookupValue extension, that you end up with a bunch of test codeunits that will be executed within less than a minute. While working on a new test codeunit, create a new test suite to only hold that codeunit and...
