typo3-testing

TYPO3 Testing Skill

Assessment-First Rule

When enhancing an existing test suite (not setting up from scratch), run FIRST:

automated-assessment typo3-testing

Install additional skills (e.g. typo3-conformance, enterprise-readiness) for broader assessment coverage.

This generates a gap report from 73+ checkpoints covering PHPUnit config, PHPStan level, runTests.sh, CaptainHook hooks, architecture tests, mutation thresholds, CI matrix, and coverage per class.

Use the assessment report as the task list. Resolve mechanical checkpoint failures before manual test writing.

When This Rule Applies

• "enhance/improve/strengthen tests", "increase coverage/mutation score"
• "enterprise grade", "A+ testing", "fix all findings"

When This Rule Does NOT Apply

• Setting up from scratch, writing a specific test, debugging a failing test

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References for TYPO3 extension testing.

Test Type Selection

Type	Use When	Speed
Unit	Pure logic, no DB, validators, utilities	Fast
Functional	DB interactions, repositories, controllers	Medium
Architecture	Layer constraints, dependency rules (phpat)	Fast
E2E (Playwright)	User workflows, browser, accessibility	Slow
Integration	HTTP client, API mocking, OAuth flows	Medium
Mutation	Test quality verification, 70%+ coverage	CI/Release

runTests.sh - Mandatory

Build/Scripts/runTests.sh is mandatory. Must be executable, support -s (suite) and -p (PHP version).

Git Hooks

Netresearch default: Build/captainhook.json (declared in composer.json extra.captainhook.config). Verify: ls Build/captainhook.json .git/hooks/pre-commit 2>/dev/null (see references/captainhook-setup.md).

Commands

# Setup (from skill dir)
scripts/setup-testing.sh [--with-e2e]
scripts/validate-setup.sh
scripts/generate-test.sh <Type> <Class>

# Run (always via runTests.sh)
Build/Scripts/runTests.sh -s unit|functional|phpstan|cgl|mutation|ci

Verify tests fail before fix, pass after. Bug fixes use the strict TDD loop in references/tdd-discipline.md — no "tested/verified" claims without pasted output.

Scoring Requirements

Unit tests required (70%+ coverage). Functional tests required for DB operations. phpat required for architecture points. PHPStan level 10.

References (in references/)

unit-testing.md | functional-testing.md | functional-test-patterns.md | integration-testing.md | e2e-testing.md | accessibility-testing.md | ddev-testing.md | test-runners.md | architecture-testing.md | ci-debugging.md | ci-cd.md | quality-tools.md | mutation-testing.md | fuzz-testing.md | performance-testing.md | typo3-v14-final-classes.md | mock-validity.md | javascript-testing.md | captainhook-setup.md | enforcement-rules.md | event-dispatch-testing.md | crypto-testing.md | test-environment-guards.md | sonarcloud.md | typo3-ci-config-patterns.md | tdd-discipline.md | ci-workflows-meta-package.md | synthetic-secret-fixtures.md | release-workflow-validation.md

Content Triggers

• CI failures across TYPO3 versions → ci-debugging.md
• Functional tests with TSFE context → functional-testing.md
• Mock failures across dependency versions → mock-validity.md
• Image/extension-dependent tests → test-environment-guards.md
• Event dispatcher testing with try/catch → event-dispatch-testing.md
• Meta-package, typo3-ci-workflows, no-plugins → ci-workflows-meta-package.md
• Fake secrets, push-protection, cs-fixer concat → synthetic-secret-fixtures.md
• Burned tag, validate before tagging → release-workflow-validation.md

Links

TYPO3 Testing Docs | Tea Extension | phpat | Infection

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Credits & Attribution

This skill is based on the excellent work by Netresearch DTT GmbH.

Original repository: https://github.com/netresearch/typo3-testing-skill

Copyright (c) Netresearch DTT GmbH — Methodology and best practices (MIT / CC-BY-SA-4.0)

Special thanks to Netresearch DTT GmbH for their generous open-source contributions to the TYPO3 community, which helped shape this skill collection. Adapted by webconsulting.at for this skill collection