webapp-testing

Automate Playwright webapp testing with server lifecycle management and reconnaissance.

146|31|Updated Jul 25, 2025
One-click install
npx skills add https://github.com/bobmatnyc/claude-mpm --skill webapp-testing-bobmatnyc
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: webapp-testing
Source: https://github.com/bobmatnyc/claude-mpm/tree/main/src/claude_mpm/skills/bundled/testing/webapp-testing
Command: npx skills add https://github.com/bobmatnyc/claude-mpm --skill webapp-testing-bobmatnyc

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires playwright, python, and includes scripts (resource) and references (resource) components.

What problem does it solve?

Automate web-app UI testing with Playwright, including server lifecycle management, reconnaissance, and debugging patterns for reliable tests.

Core Features & Use Cases

  • Playwright-based UI testing for web apps
  • Server lifecycle management with with_server.py
  • Reconnaissance-first approach (server checks, network idle, screenshots)
  • Troubleshooting and debugging patterns for flaky tests

Quick Start

  1. Verify server state (lsof, curl)
  2. Start server with with_server.py
  3. Write Playwright tests and wait for network idle

Frequently Asked Questions about webapp-testing

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I automate UI testing for web applications with Playwright?

Automate UI testing with Playwright by writing tests that interact with web app elements, then use reconnaissance patterns like network idle waits and server health checks to stabilize test execution. The Skill provides orchestrated server lifecycle management and debugging patterns for reliable, non-flaky tests.

What is reconnaissance-before-action testing and why does it matter for web app tests?

Reconnaissance-before-action verifies server state, network conditions, and DOM readiness before executing UI interactions. This approach prevents flaky tests by confirming the application is fully loaded and stable—through lsof checks, curl validation, and networkidle waits—before Playwright interacts with elements.

How do I manage server lifecycle in Playwright tests?

Use with_server.py to orchestrate server startup, health validation, and teardown within your test workflow. This ensures your local development server or multi-server stack is running and responsive before Playwright tests execute, eliminating timing failures.

Can I use Playwright to test dynamic front-ends and regression suites?

Yes. Playwright, combined with reconnaissance patterns for DOM and visual checks, handles dynamic content and regression testing. The Skill covers wait strategies like domcontentloaded and networkidle, plus debugging support for both single servers and complex stacks.

What are the prerequisites for setting up Playwright web app testing?

You need Python and Playwright installed as dependencies. Before writing tests, verify your local server state using lsof and curl commands to confirm it's accessible, then structure tests to wait for network idle or DOM content loaded before interacting with UI elements.

Why do my Playwright tests fail intermittently and how do I debug them?

Intermittent failures usually stem from timing issues—the server not ready, network still loading, or DOM incomplete. This Skill provides debugging patterns including server health checks, screenshot capture, and wait-strategy guidance to identify and eliminate flakiness in UI interactions and form submissions.