golang-testing

Table-driven tests in Go define multiple test cases succinctly and execute them with t.Run for isolated subtest runs. This pattern provides clear, maintainable coverage across various inputs without duplicating test logic.

Start TDD with Go testing by following the RED-GREEN-REFACTOR loop. Write a failing test first, implement code to pass it, then refine the code while maintaining robust, maintainable test coverage.

Fuzzing in Go 1.18+ validates resilience by automatically generating varied inputs to find edge cases. It uses the standard testing package to fuzz inputs and ensures your Go code handles unexpected data robustly.

Go benchmarks measure performance using benchmark functions in the standard testing package. They run code repeatedly to report execution time, helping you analyze and optimize performance bottlenecks across your Go codebase.

You need Go 1.18+ specifically for native fuzzing support, which integrates with the standard testing package. Table-driven tests, subtests, and benchmarks function on earlier Go versions using standard tooling.

Yes, Go testing supports running subtests and benchmarks together within the same test suite. Using t.Run for subtests and benchmark functions allows isolated execution and performance measurement across your Go codebase.