Agent-skills-standard golang-testing

Write unit tests with table-driven patterns and interface mocking in Go. Use when writing Go unit tests, table-driven tests, or using mock interfaces. (triggers: **/*_test.go, testing, unit tests, go test, mocking, testify)

install

source · Clone the upstream repo

git clone https://github.com/HoangNguyen0403/agent-skills-standard

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/HoangNguyen0403/agent-skills-standard "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/golang/golang-testing" ~/.claude/skills/hoangnguyen0403-agent-skills-standard-golang-testing && rm -rf "$T"

manifest: skills/golang/golang-testing/SKILL.md

source content

Golang Testing

Priority: P0 (CRITICAL)

Implementation Workflow

Write failing test first — Follow Red-Green-Refactor TDD workflow.
Use table-driven tests — Define test cases as slice of structs; iterate with
```
t.Run()
```
.
Mock via interfaces — Use DI and interfaces. Prefer
```
mockery
```
for auto-generated mocks or manual mocks for simple cases.
Run parallel — Use
```
t.Parallel()
```
for non-sequential tests to speed up CI.
Clean up resources — Use
```
t.Cleanup()
```
to reset state or release DB/file resources.
Check coverage — Aim for >80% line coverage. Run
```
go test -cover
```
to audit.

See table-driven test examples

Tools

Stdlib:
```
testing
```
package usually enough.
Testify: Assertions (
```
assert
```
,
```
require
```
) and mocks.
Mockery: Auto-generate mocks for interfaces.
GoMock: Popular mocking framework alternative.

Naming

Test file:
```
*_test.go
```
Test function:
```
func TestName(t *testing.T)
```
Example function:
```
func ExampleName()
```

Anti-Patterns

No assert in loops: use
```
t.Run
```
subtests to isolate failures.
No global mock state: define mocks locally within test scope.
No skipping race detection: always run
```
go test -race
```
in CI.