A brittle test suite during refactoring is usually caused by too much mocking. Look at the concept of sociable tests. https://martinfowler.com/bliki/UnitTest.

A brittle test suite during refactoring is usually caused by too much mocking. Look at the concept of sociable tests. https://martinfowler.com/bliki/UnitTest.html https://martinfowler.com/bliki/UnitTest.html