webapp-testing

Automates testing of local web applications using Python Playwright scripts.

Updated Aug 28, 2026
One-click install
npx skills add https://github.com/AnderHonorato/Mem-rias-IA---Infinity --skill webapp-testing-anderhonorato
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: webapp-testing
Source: https://github.com/AnderHonorato/Mem-rias-IA---Infinity/tree/main/Manus/Skills/snapshots/anthropic-webapp-testing
Command: npx skills add https://github.com/AnderHonorato/Mem-rias-IA---Infinity --skill webapp-testing-anderhonorato

SYSTEM DOCUMENTATION & REQUIREMENTS

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

What problem does it solve? Testing local web applications manually is slow and error-prone, especially when verifying frontend behavior, debugging UI issues, or capturing browser state. This Skill provides a structured Playwright-based workflow to automate browser interactions, inspect rendered DOMs, and capture screenshots and console logs. ## Core Features & Use Cases - Server Lifecycle Management: The with_server.py helper starts one or more servers (e.g., backend plus frontend), waits for readiness, runs your automation, and cleans up automatically. - Reconnaissance-Then-Action Pattern: Navigate pages, wait for networkidle, inspect the rendered DOM, and identify selectors before executing actions on dynamic webapps. - Browser Evidence Capture: Take full-page screenshots and record console logs during automation for debugging and verification. - Use Case: You have a React frontend on port 5173 and a Python backend on port 3000. Use the helper to launch both servers, then run a Playwright script that logs in, clicks through the dashboard, and saves screenshots verifying each page renders correctly. ## Quick Start Ask the AI to test your local web app by starting the dev server with the with_server.py helper and writing a Playwright script that navigates to the page, waits for it to load, and captures a screenshot.

Frequently Asked Questions about webapp-testing

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

FAQPage Schema
How do I test a local web application with Playwright in Python?

Write a Python script using sync_playwright, launch Chromium in headless mode, navigate to your localhost URL, and wait for the networkidle load state before interacting with elements. Use the with_server.py helper to start your dev server automatically before the script runs.

How do I run Playwright tests against multiple servers at once?

Pass multiple --server and --port flags to with_server.py, one pair per server. It starts each server, waits for its port to accept connections, runs your automation command, then terminates all servers cleanly.

Why does Playwright find no elements on my dynamic webapp page?

Dynamic apps render content via JavaScript after initial page load, so inspecting the DOM too early returns nothing. Call page.wait_for_load_state('networkidle') before querying selectors or taking screenshots.

Can Playwright automate static HTML files without a server?

Yes, Playwright can open local HTML files directly using file:// URLs built from the absolute file path. You can then click elements, fill forms, and capture screenshots without running any server.

How do I capture browser console logs during Playwright automation?

Register a handler with page.on('console', handler) before navigating. Each console message is passed to your callback, where you can print it or append it to a list for saving to a log file.