<ul><li>To set up unit tests for API endpoints, you need to install Express, Jest, and Supertest packages.</li><li>Create a directory structure and a package.json file with the necessary dependencies.</li><li>Create a simple express server that handles POST requests and returns status 400 Bad Request if either the title or body is missing.</li><li>Create a test file using Supertest to make HTTP requests and compare response status codes with expected values.</li></ul>

Testing REST APIs using Jest and Supertest ✅

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