Did you have any established requirements or standards for test coverage in your previous company?

In some companies, requirements for a minimum level of test coverage are indeed established, for example, 70-80%, to ensure code quality and reduce the number of bugs. In other cases, the requirements may be less formal, and test coverage depends on the importance of the module or project. In Go, the built-in go test tool with the -cover flag is often used to assess coverage.

Example command to check coverage:

go test -cover ./...

It is important to understand that a high percentage of coverage does not always guarantee the quality of tests, so emphasis is also placed on the quality of the tests themselves, not just the numbers.