tdd-with-phpunit
Apply RED-GREEN-REFACTOR with PHPUnit 10/11 for Symfony; KernelTestCase/WebTestCase, attributes ([Test]/[DataProvider]), Foundry
- Installs
- 99
- Last 24h
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/dev-toolings/superpowers-symfony --skill tdd-with-phpunit- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads tdd-with-phpunit automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Tdd With Phpunit (Symfony)
Use when
- Driving a feature with RED-GREEN-REFACTOR using PHPUnit 10/11 class-based tests.
- Choosing between
TestCase,KernelTestCaseandWebTestCasefor 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
- RED: pick the base class, write the test with
#[Test],#[DataProvider]and#[CoversClass], run it and check it fails for the right reason. - GREEN: write the minimum code that passes.
- REFACTOR with the suite green, re-running it after each change.
- Replace an external boundary with
static::getContainer()->set(Service::class, $mock). - Test commands with
CommandTester, or withrunCommand()andassertCommandIsSuccessful()on Symfony 8.1+. - Assert invalid form submissions with
assertResponseIsUnprocessable().
Guardrails
- Use PHPUnit 10+ attributes, not
@testor@dataProviderannotations. - Fetch services with
static::getContainer(), not the legacyself::$container. - Mock only true external boundaries (HTTP clients, third-party SDKs); keep real services and a real database elsewhere.
runCommand()and closures ingetContainer()->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
FAQ
What does the tdd-with-phpunit skill do?
Apply RED-GREEN-REFACTOR with PHPUnit 10/11 for Symfony; KernelTestCase/WebTestCase, attributes ([Test]/[DataProvider]), Foundry
How do I install tdd-with-phpunit?
Run npx skills add https://github.com/dev-toolings/superpowers-symfony --skill tdd-with-phpunit in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/tdd-with-phpunit/ (personal) or .claude/skills/tdd-with-phpunit/ (project).
Which AI agents can use tdd-with-phpunit?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is tdd-with-phpunit safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains tdd-with-phpunit?
It is published by dev-toolings in dev-toolings/superpowers-symfony. It has 99 recorded installs.
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