Enforce Go testing best practices for unit and integration tests.
npx skills add https://github.com/torosent/crankfire --skill writing-go-tests-torosent
Please help me install this Agent Skill. Skill: writing-go-tests Source: https://github.com/torosent/crankfire/tree/main/.claude/skills/writing-go-tests Command: npx skills add https://github.com/torosent/crankfire --skill writing-go-tests-torosent
This Skill provides actionable Go testing guidelines to write, review, and improve tests, helping teams achieve meaningful coverage and robust test suites without reliance on external tools.
Apply current Go testing best practices to this repository's tests. Example prompt: "Review this Go project and apply Table-Driven, Concurrency, and Coverage best practices."
High-intent search queries and answers about installing and using this skill.
Table-driven tests use a slice of test cases with inputs and expected outputs, executed in a loop. This pattern reduces code duplication, improves readability, and makes it easy to add new test cases without duplicating test logic.
Place test files adjacent to the code they test, using the `_test.go` suffix. Use internal tests (same package) for whitebox testing and external tests (package_test) for blackbox testing and avoiding import cycles.
Use `t.Parallel()` to mark independent tests, employ synchronization primitives like `sync.WaitGroup` for deterministic coordination, and avoid time-dependent assertions. This ensures tests are reliable and leverage concurrent execution.
Mock external services and slow dependencies to isolate units; use integration tests for critical data flows and cross-service interactions. Mocking speeds up test suites; integration tests catch real-world failures.
Aim for meaningful coverage of critical paths and error handling rather than chasing a percentage. Use `go test -cover` to measure coverage, focus on uncovered branches, and prioritize business logic and edge cases.
Write benchmark functions with `func Benchmark*` signature and use `testing.B` to run iterations. Run with `go test -bench` to compare performance across changes and identify bottlenecks in production code.
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