How do I test authentication in a MERN application?
To test authentication in a MERN app, you can use tools like Jest and Supertest for unit and integration tests.
Can you give me an example of a test case for user login?
Sure! You can write a test that sends a POST request to your login endpoint with valid credentials and checks for a success response.
What about testing protected routes?
For protected routes, you can test by trying to access them without a token and expecting a 401 Unauthorized response.
How do I mock the database in my tests?
You can use libraries like mongoose-mock or sinon to mock your database interactions during testing.
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