Why Is My Go Test Showing 'no tests to run'?

No Tests to Run in Go Test: Unmasking the Culprit

Despite having diligently written test cases, you might encounter the puzzling "no tests to run" error message while executing go test. This can be a perplexing issue, especially for Go newcomers.

This issue arises due to a fundamental rule in Go's testing framework: a test function must follow specific naming conventions. According to the documentation, a test function must adhere to the following format:

where Xxx does not begin with a lowercase letter. Essentially, the first letter of your test function's name must be uppercase.

Practical Implementation:

In your case, the test function is testNormalizePhoneNum, which does not comply with this rule. To resolve this, simply rename your test function to TestNormalizePhoneNum and rerun go test.

Alternative Approach:

If you prefer not to alter your function's name, you can force the testing tool to run non-conventional test functions by specifying their names using the -run flag:

Conclusion:

Adhering to the naming conventions for test functions is crucial for a successful go test experience. Remember to begin your test function names with uppercase letters, and your tests will run smoothly.

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