Didi Tech

Jul 10, 2025 · Backend Development

Why Unit Testing Matters: Go Basics, Mocking, and Table‑Driven Tests

This article explains why unit testing is essential for code quality, API design, and documentation, then walks through Go's built‑in testing conventions, common *testing.T methods, table‑driven test patterns, mocking with gomonkey, and best practices for writing maintainable tests.