Sprkl ships with Jest testing instrumentation (unit and integration tests), providing insights and traces for every execution. You can get an overview of the execution of your tests, including details for mocks and assertions.
See the Jest execution information under the Interactions section on the Dashboard.
Jest is a special interaction that is split into two sections:
Changed: Under this list, you will get the tests affected by the marked code changes.
UnChanged: All the other tests (do not seem to be affected by the code changes).
This can better explain what is tested (or not tested) for the code changes you selected to analyze (configure selection with Analysis configurations).