How to use
- Copy the installation command and review the source package before installing it in your own agent environment.
- Check the source document for required tools, credentials and supported hosts.
- Describe your input and desired deliverable; review the output against the source material.
npx skills add https://github.com/dev-toolings/superpowers-symfony --skill symfony:test-doubles-mockingBefore you start
- Installation does not include a model subscription, API allowance or permission to access your files.
- Repository stars and installation counts describe activity, not an independent quality or security test.
Original skill document
Rendered from the source repository. Headings, examples, code, tables, links, and referenced images are preserved.
Test Doubles Mocking (Symfony)
Use when
- Building regression-safe behavior with TDD/functional/e2e tests.
- Converting bug reports into executable failing tests.
Default workflow
- Write failing test for target behavior and one boundary case.
- Implement minimal code to pass.
- Refactor while preserving green suite.
- Broaden coverage for invalid/unauthorized/not-found paths.
Guardrails
- Prefer deterministic fixtures/builders.
- Assert observable behavior, not internal implementation.
- Keep tests isolated and stable in CI.
Progressive disclosure
- Use this file for execution posture and risk controls.
- Open references when deep implementation details are needed.
Output contract
- RED/GREEN/REFACTOR trace.
- Test files changed and executed commands.
- Coverage and confidence notes.
References
reference.mddocs/complexity-tiers.md
