Learn how to utilize batch mode and automation tools to cover all your test cases effectively.
Is 100% Coverage Real?
While 100% code coverage is a great metric, it doesn't always mean 100% bug-free. However, striving for high coverage forces you to think about edge cases and logic paths you might otherwise miss.
Strategies
Use tools like Istanbul or JaCoCo to measure coverage. Focus on branch coverage, not just line coverage. And remember, integration tests often provide more value than unit tests alone.