How do I migrate my tests from Chai to Jest?

How do I migrate my tests from Chai to Jest?

To migrate from Chai to Jest, you'll need to replace Chai's assertion methods with Jest's built-in assertions. For example, change expect(value).to.equal(expected) to expect(value).toBe(expected).

What about the setup and teardown methods?

In Jest, you can use beforeEach and afterEach for setup and teardown, similar to Chai's before and after hooks.

Are there any specific features in Jest that I should be aware of?

Yes! Jest has features like snapshot testing, built-in mocking, and a powerful test runner that can improve your testing experience.

Can I run my existing Chai tests in Jest?

You can't run Chai tests directly in Jest, but you can rewrite them using Jest's syntax. It might take some time, but it's worth it for the benefits.