golang-testing

Table-driven tests in Go use a struct slice to define input cases and expected outputs, iterating through them to execute subtests. This pattern provides concise, scalable coverage across diverse inputs while keeping test logic maintainable.

Go benchmarks and fuzz tests validate performance and resilience against unexpected inputs using the testing package. Benchmarks measure execution time while fuzz tests automatically generate random data to expose edge case failures in your functions.

Go subtests organize scenarios hierarchically using the t.Run method, allowing structured test execution. Adding t.Parallel within subtests speeds up execution by running cases concurrently, which is an idiomatic Go testing practice for reliable code.

No external dependencies are required. These Go testing patterns rely entirely on the standard library testing package, applying idiomatic practices for table-driven tests, subtests, benchmarks, fuzz tests, and coverage reporting within real projects.

Code coverage in a Go module is measured using the testing package flags with the go test command. This reporting validates that your table-driven tests, subtests, and fuzz tests adequately exercise your functions to ensure reliable code.