I believe that 100% test coverage is not a good idea in applications. However, I find it very very valuable in libraries. I have a few personal recommendations:
Avoid white-box testing. It makes refactoring harder. We should be able to achieve 100% test coverage using only the public API of the library.
Every reported bug should be reproduced with a unit test before it is fixed. These unit tests are more important than achieving 100% coverage.
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
I believe that 100% test coverage is not a good idea in applications. However, I find it very very valuable in libraries. I have a few personal recommendations:
Avoid white-box testing. It makes refactoring harder. We should be able to achieve 100% test coverage using only the public API of the library.
Every reported bug should be reproduced with a unit test before it is fixed. These unit tests are more important than achieving 100% coverage.