testing

testing is a skill for Claude Code, Codex from dr-robert-li/cowork-wordpress-expert. It costs 43 tokens per session (2,787 once invoked), scanned A, original, MIT.

A testing guide for WordPress themes and plugins using PHPUnit, a PHP testing tool, and WordPress's own test framework.

In plain words
What is it for?
Use it when writing tests, setting up WordPress test infrastructure, or checking coverage for code such as REST endpoints, database operations, hooks, and templates.
Why use it?
It helps developers decide what to test and how to organize tests, so changes are less likely to break important site functions.

Skill for Claude CodeCodex

Part of the wordpress-expert plugin — 54 skills shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/dr-robert-li/cowork-wordpress-expert/testing
Any agent
npx skills add dr-robert-li/cowork-wordpress-expert --skill testing
Clone the repo
git clone --depth 1 https://github.com/dr-robert-li/cowork-wordpress-expert

Made for: Claude Code, Codex.

Or install wordpress-expert, the plugin that ships this one along with the rest of its 54 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for testing

README.md
[![agentmods](https://agentmods.dev/badge/skills/dr-robert-li/cowork-wordpress-expert/testing.svg)](https://agentmods.dev/skills/dr-robert-li/cowork-wordpress-expert/testing)
Your own site
<a href="https://agentmods.dev/skills/dr-robert-li/cowork-wordpress-expert/testing"><img src="https://agentmods.dev/badge/skills/dr-robert-li/cowork-wordpress-expert/testing.svg" alt="Measured on agentmods" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,787 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00043 $0.02787
Opus 5 $0.00022 $0.01393
Sonnet 5 $0.00009 $0.00557
Haiku 4.5 $0.00004 $0.00279

Measured 5d ago against content hash 6cd781163b20, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

testing scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/testing/SKILL.md · 376 lines

How it starts

The opening of the file, as written. The whole thing — 376 lines — stays where its author put it; the contents beside it link to each section on GitHub.

WordPress Testing Framework

Unit Testing Strategy

For all custom code (themes and plugins), design and maintain tests using PHPUnit with the WordPress test framework (WP_UnitTestCase).

Test Coverage Targets

  • Critical paths: 100% coverage (authentication, payment, data mutation)
  • Business logic: 95%+ coverage
  • Helper/utility functions: 90%+ coverage
  • Template rendering: Integration tests for critical templates
  • Overall target: As close to 100% as practical

Test Categories

tests/
├── unit/                    # Pure unit tests (no WordPress dependencies)
│   ├── Validators/          # Input validation functions
│   ├── Formatters/          # Data formatting/transformation
│   └── Calculators/         # Business logic calculations
├── integration/             # Tests requiring WordPress (WP_UnitTestCase)
│   ├── PostTypes/           # Custom post type registration & behavior
│   ├── Taxonomies/          # Custom taxonomy behavior
│   ├── AJAX/                # AJAX handler tests
│   ├── REST/                # REST API endpoint tests
│   ├── Database/            # Custom table operations
│   ├── Hooks/               # Filter and action behavior
│   └── Admin/               # Admin page functionality
├── security/                # Security-specific tests
│   ├── Nonce/               # CSRF protection verification
│   ├── Capability/          # Authorization checks
│   ├── Sanitization/        # Input sanitization coverage
│   ├── Escaping/            # Output escaping coverage
│   └── SQLInjection/        # SQL injection resistance
├── performance/             # Performance regression tests
│   ├── QueryCount/          # Database query count assertions
│   ├── MemoryUsage/         # Memory consumption limits
│   └── ExecutionTime/       # Execution time thresholds
└── e2e/                     # End-to-end tests (Cypress/Playwright)
    ├── Frontend/            # User-facing functionality
    ├── Admin/               # Dashboard functionality
    └── Forms/               # Form submission flows

Read the full file on GitHub · 376 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 376 lines · 43 tokens per session scan A 6cd781163b20

Subscribe to this mod's changes

testing is a skill published in the GitHub repository dr-robert-li/cowork-wordpress-expert (28 stars, last pushed 6mo ago), licensed MIT. It adds 43 tokens to every session and 2,787 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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