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dev-toolings/superpowers-symfony107 installs

tdd-with-phpunit

Apply RED-GREEN-REFACTOR with PHPUnit 10/11 for Symfony; KernelTestCase/WebTestCase, attributes (#[Test]/#[DataProvider]), Foundry

How do I install this agent skill?

npx skills add https://github.com/dev-toolings/superpowers-symfony --skill tdd-with-phpunit
view source ↗

Is this agent skill safe to install?

  • Gen Agent Trust Hubpass

    The skill provides standard guidelines for Test-Driven Development (TDD) using PHPUnit and Symfony. It is safe for its intended use, though it inherently possesses an indirect prompt injection surface due to its requirement to read and process external codebase files.

  • Socketpass

    No alerts

  • Snykpass

    Risk: LOW · No issues

What does this agent skill do?

Tdd With Phpunit (Symfony)

Use when

  • Driving a feature with RED-GREEN-REFACTOR using PHPUnit 10/11 class-based tests.
  • Choosing between TestCase, KernelTestCase and WebTestCase for a new behavior.
  • Testing a console command, or an invalid form that must answer 422.
  • Swapping an external service for a double through the test container.

Default workflow

  1. RED: pick the base class, write the test with #[Test], #[DataProvider] and #[CoversClass], run it and check it fails for the right reason.
  2. GREEN: write the minimum code that passes.
  3. REFACTOR with the suite green, re-running it after each change.
  4. Replace an external boundary with static::getContainer()->set(Service::class, $mock).
  5. Test commands with CommandTester, or with runCommand() and assertCommandIsSuccessful() on Symfony 8.1+.
  6. Assert invalid form submissions with assertResponseIsUnprocessable().

Guardrails

  • Use PHPUnit 10+ attributes, not @test or @dataProvider annotations.
  • Fetch services with static::getContainer(), not the legacy self::$container.
  • Mock only true external boundaries (HTTP clients, third-party SDKs); keep real services and a real database elsewhere.
  • runCommand() and closures in getContainer()->set() need Symfony 8.1+.

Progressive disclosure

  • Use this file for execution posture and risk controls.
  • Open references when deep implementation details are needed.

Output contract

  • The failing PHPUnit output (RED), then the passing run.
  • Test files changed, with the base class and attributes used.
  • Commands executed.

References

  • reference.md

How can the creator link this skill?

Add the canonical catalog link to the repository README so users can inspect current installs and available audits. The publishing guide covers the complete discovery path.

<a href="https://skillzs.dev/skills/dev-toolings/superpowers-symfony/tdd-with-phpunit">View tdd-with-phpunit on skillZs</a>