How Do You Improve Code Coverage Without Increasing Flaky Tests?

Improving code coverage is usually a top priority for engineering teams — but doing it without adding maintenance overhead is where the real challenge lies. More tests ≠ better tests, especially if they become flaky, slow, or hard to maintain.

Here are a few strategies developers and QA teams commonly use:

✔ Focus on critical business logic first
✔ Add tests for edge cases identified in production
✔ Use runtime traffic to auto-generate or enhance test suites
✔ Continuously monitor test gaps across services
✔ Avoid writing tests just to satisfy percentage metrics

Many modern tools even capture real user behavior to generate high-confidence tests — reducing guesswork and surfacing areas that actually matter.