Because the test methods are data driven, users can build a variety of different tests and initially build a positive test for the feature. Test coverage can be extended by varying data and including additional sets in the JSON data file for each test method. The test methods should be generic enough to allow those additional sets of data to be used. At the minimum, the user should include two positive test cases: one to test just the required fields and one to test all the fields in the feature.
Building in positive, negative, boundary, and limit testing
Negative testing
What about negative testing? Usually, when working in the Agile world, users test at the minimum, and then extend test coverage after the feature has been built....
