Unit test coverage is measurable. But what does 80% vs 90% coverage tell you? Those numbers can be gamed. Also, if it is 80% and really good tests vs 90% and poor tests, is the 90% better? The point is what do the measurement numbers mean? And even "objective" numbers can provide a misleading view.
Unit test coverage is measurable. But what does 80% vs 90% coverage tell you? Those numbers can be gamed. Also, if it is 80% and really good tests vs 90% and poor tests, is the 90% better? The point is what do the measurement numbers mean? And even "objective" numbers can provide a misleading view.