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Use when writing or reviewing PHP tests - PHPUnit assertions, WordPress test utilities (WP_UnitTestCase, factories), WooCommerce test patterns, and Brain Monkey isolation.
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
| name | php-testing-patterns |
| description | Use when writing or reviewing PHP tests - PHPUnit assertions, WordPress test utilities (WP_UnitTestCase, factories), WooCommerce test patterns, and Brain Monkey isolation. |
PHPUnit, WordPress, and WooCommerce testing patterns. For shared test quality principles (philosophy, smells, mocking decisions), see testing-patterns.
| Need | Reference File | Sections to Read |
|---|---|---|
| PHPUnit + WordPress + WooCommerce patterns | ${CLAUDE_SKILL_DIR}/../testing-patterns/references/phpunit-patterns.md | Full file (~422L, manageable) |
| Behavior vs implementation | ${CLAUDE_SKILL_DIR}/../testing-patterns/references/test-philosophy.md | ## The Fundamental Shift + ## Four Core Principles |
| Flaky/brittle tests | ${CLAUDE_SKILL_DIR}/../testing-patterns/references/test-smells.md | ## The Six Major Test Smells (relevant subsection) |
| Mock usage decisions | ${CLAUDE_SKILL_DIR}/../testing-patterns/references/mocking-strategies.md | ## The Mocking Decision Framework |
| AAA pattern/naming | ${CLAUDE_SKILL_DIR}/../testing-patterns/references/test-structure.md | ## The AAA Pattern + ## Test Naming Conventions |
| Test data strategy | ${CLAUDE_SKILL_DIR}/../testing-patterns/references/test-data.md | ## Factories + ## Builders |
How to read sections: Grep for heading to find line number, Read with offset+limit.
| Use | Instead Of | Why |
|---|---|---|
assertSame($expected, $actual) | assertEquals() | Strict type comparison — assertEquals('1', 1) passes silently |
assertCount(3, $items) | assertSame(3, count($items)) | Better failure messages |
assertInstanceOf(Foo::class, $obj) | assertTrue($obj instanceof Foo) | Better failure messages |
assertStringContainsString() | assertTrue(strpos(...) !== false) | Readable, descriptive |
@dataProvider | Duplicated test methods | DRY, parameterized, each case is a named data set |
$this->factory->post->create() | wp_insert_post() | WordPress factory handles cleanup |
expectException(E::class) | try/catch + fail() | PHPUnit native exception testing |
| Pattern | Why Harmful | Fix |
|---|---|---|
assertTrue(true) | No assertion at all | Add meaningful assertion |
assertEquals over assertSame | Type coercion hides bugs | Use assertSame |
Missing @dataProvider | Duplicated test logic | Extract data provider |
| Direct DB queries in unit tests | Slow, fragile | Use WordPress factories |
setUp() without parent::setUp() | WP state not initialized | Add parent::setUp() |
| Mocking owned classes | Design smell | Refactor for loose coupling |
Missing tearDown() cleanup | State leaks | Restore globals, remove filters |
wp_insert_post() in unit tests | No automatic cleanup | Use $this->factory->post->create() |
$this->factory->post, ->user, ->term, ->comment with create() and create_and_get()Functions\when('get_option')->justReturn('value'))Use when automating browser tasks - clicking, filling forms, taking screenshots, debugging UI, or testing web flows. Requires chrome-devtools or playwright MCP.
Use when analyzing Claude Code raw session logs, parsing JSONL transcripts, investigating agent behavior, extracting metrics from session data, debugging subagent dispatches, or building session analysis tools. Triggers on session IDs, JSONL paths, ~/.claude/projects references, or requests to understand what happened in a CC session.
Optimize system prompts for Claude Code agents using proven prompt engineering patterns. Use when users request prompt improvement, optimization, or refinement for agent workflows, tool instructions, or system behaviors.
Use when writing or modifying frontend React/HTML components, creating interactive widgets, building forms, or implementing overlays/modals/dropdowns — ensures accessible output by default with correct ARIA, keyboard, focus, and screen reader support
(user)
Use when writing or reviewing Playwright E2E tests - locator strategies, Page Object Model, auto-waiting, network interception, and WordPress/WooCommerce test helpers.