How to Organize Shared Test Code in Go Packages?

Where to Place Shared Test Code in Go Packages

When working with multiple files in a Go package, it's common practice to create a test file for each source file. However, if multiple tests require shared helper functions, placing them in the package source files can clutter the code.

Solution:

The solution is to place the shared test code in any of the test files. Test files that share the same package clause belong to the same test package and can reference each other's exported and unexported identifiers without the need for import statements.

Key Points:

• You don't need to create a separate test file for each source file.
• You can have a test file without a matching source file.
• Test files can reference each other's identifiers, even if they are not exported.
• Different package clauses in test files create different test packages, preventing identifier sharing.

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