golang-testing

Table-driven tests in Go use a struct slice of inputs and expected outputs, executing subtests via t.Run to cover multiple scenarios efficiently. This approach standardizes test cases for maintainable Go modules.

Go benchmarks structure performance measurement by running functions repeatedly using the testing.B object. This measures execution time and allocates operations to validate code speed and identify performance regressions in Go libraries.

Fuzz testing in Go stresses input handling by automatically generating random inputs to find edge cases and panics. It integrates with Go tooling to continuously parse malformed data and validate code robustness.

Parallel subtests speed up Go test execution by calling t.Parallel within t.Run blocks. This allows concurrent test execution across multiple CPU cores, significantly reducing feedback loops for large test suites.

TDD works seamlessly with standard Go testing tooling by using go test ./... to validate modules. It drives library design incrementally, increasing test coverage through table-driven tests and benchmarks.