Having 100% code coverage has nothing to do with the potential to break things. Even if your code is perfect, you can still break things by monkey patching.
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Great care should be taken when extending the built in types. The potential to break stuff is very high
I know, that's why i have 100% code coverage
Having 100% code coverage has nothing to do with the potential to break things. Even if your code is perfect, you can still break things by monkey patching.