How can you test private functions in Go?

  • By marking them as public before testing.
  • By creating a separate testing package for the private functions.
  • By using the testing package's internal package.
  • By testing them indirectly through public functions that use them.
Private functions in Go can be tested indirectly through public functions that use them. Since private functions are not directly accessible from outside the package they are defined in, you can create test cases for the public functions that exercise the private functions' logic. This approach ensures that the private functions are tested while maintaining encapsulation and not exposing them to external code.
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