Testing · Senior · Question 66 of 75

How do you test a feature behind a feature flag?

✓Correct answer: Inject the flag value in tests and cover both variants at the level where they diverge; E2E only for the critical variant
2Test only the enabled variant
3Remove flags in test builds

Explanation

Combinations of flags grow exponentially - test variants independently and clean up old flags.

Further reading

Test yourself

Take the Testing · Senior quiz: questions and options are shuffled, and you get a review of your mistakes at the end.