Yea I’m with Ben on the imperfection of code coverage as a metric. I set up Istanbul/NYC to ignore files that are just wrappers on API calls, files with constants, and any file where the type system is doing all of he heavy lifting. But honestly, I don’t use code coverage as anything more than a fun thing to watch on the build. Instead, I use the number of bugs that pop up in a given sprint as my measure of quality. And if a bug occurs then I know that my code coverage was low and/or that our tests were flaky. So I immediately go beef up the tests. :)
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