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How to Auto-Generate Playwright Test Cases Using OpenAI GPT API

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Developers can now combine OpenAI's GPT API with Microsoft's Playwright framework to automatically generate browser test cases from plain-language descriptions. A user story or natural language prompt is passed to GPT-4, which returns ready-to-run TypeScript test code that gets saved directly to a test file. The setup requires minimal configuration — just an OpenAI API key, the openai and dotenv npm packages, and a simple TypeScript script to handle the API call. Future enhancements could include NLP pre-processing, DOM-aware selector matching, and self-healing test logic for production use. Experts caution that AI-generated tests should always be reviewed for correctness, and that sensitive data like credentials must be mocked rather than hardcoded.

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