Testing in Go — Table-Driven Tests, Benchmarks, and go test Habits

Short summary

Go's table-driven test pattern replaces boilerplate with a struct slice and t.Run() loop, giving you per-case failure reporting without test framework overhead. Pair this with httptest for handler testing and -race flag for concurrency bugs. These zero-ceremony habits are baked into the standard library.

• •Table-driven tests eliminate repetitive test functions; define cases as struct slices, loop with t.Run(), and failures show the exact case name
• •httptest provides a fake ResponseRecorder for handler testing without spinning up a real HTTP server
• •go test flags (-v, -race, -run) handle 90% of real-world testing workflows; no config files or test runners needed

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