go-testing-patterns

Test HTTP servers and clients in Go by applying the httptest pattern. It provides guidance for creating deterministic HTTP test scenarios, ensuring your server handlers and client interactions are validated reliably without external network dependencies.

Measure Go performance and resilience by running benchmarks and fuzz testing. Benchmarks evaluate execution speed, while fuzz testing feeds unexpected inputs to your code to uncover edge cases and improve overall test coverage.

Write Go table-driven tests by defining multiple inputs and expected outputs in a slice, then iterating over them within a single test function. This pattern reduces duplication, improves readability, and covers multiple scenarios efficiently.

Go testing supports parallel subtests using the t.Run method. By calling t.Parallel() within your subtests, you enable concurrent execution of isolated cases, which significantly reduces overall test suite runtime.