Testing in Go interview questions

Testing in Go is idiomatic and built into the language — no JUnit equivalent needed. This module covers the testing package (TestXxx naming convention, t.Error vs t.Fatal, t.Helper for test utility functions), table-driven tests (the idiomatic Go pattern for testing multiple cases — the slice-of-struct approach, when to use subtests vs parallel tests), testify's assert and require packages (assert continues on failure, require stops — the practical difference), t.Run for subtests (isolated scope, parallel subtests with t.Parallel()), benchmarks (BenchmarkXxx, b.ResetTimer, how to read benchmark output), TestMain for setup/teardown of shared test infrastructure (database connections, test containers), and the -race flag in tests to catch data races automatically. The interview question Go interviewers always ask: 'walk me through how you'd test a Go HTTP handler' — this module provides the complete answer.