# PHP Testing

> Unit and integration testing standards for PHP applications.

- Skill: `majiayu000/php-testing-4` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds add majiayu000/php-testing-4`
- Raw SKILL.md: https://api.skillmd.com/api/skills/majiayu000/php-testing-4/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: majiayu000 (https://skillmd.com/u/majiayu000)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/majiayu000/php-testing-4

---


# PHP Testing

## **Priority: P1 (HIGH)**

## Structure

```text
tests/
├── Unit/
├── Integration/
└── Feature/
```

## Implementation Guidelines

- **Pest/PHPUnit**: Use Pest for DX or PHPUnit for legacy parity.
- **TDD Flow**: Follow Red-Green-Refactor cycle for new logic.
- **Isolation**: Mock dependencies via **Mockery** or PHPUnit mocks.
- **Strict Assertions**: Favor `assertSame` over `assertTrue`.
- **Data Providers**: Run tests against multiple sets via `@dataProvider`.
- **Categorize**: Separate Unit (isolated) from Integration (DB/API).

## Anti-Patterns

- **Testing Private**: **No Private Testing**: Validate public behavior only.
- **Over-Mocking**: **No Brittle Mocks**: Mock system boundaries only.
- **Blocking Tests**: **No Networking**: Use in-memory DBs and mocks.
- **Metric Chasing**: **No 100% Mania**: Prioritize quality over coverage.

## References

- [Testing Patterns & Mocks](references/implementation.md)