What is Sinon and how do I use it for testing?

What is Sinon and how do I use it for testing?

Sinon is a JavaScript library used for creating spies, mocks, and stubs to facilitate testing. It helps you isolate your code and test its behavior.

Can you give me an example of how to create a spy with Sinon?

Sure! You can create a spy like this: const mySpy = sinon.spy(); Then you can call it and check if it was called using mySpy.called.

What are mocks and how do they differ from spies?

Mocks are similar to spies but they also allow you to set expectations on how they should be called. Spies only track calls.

How do I integrate Sinon with Mocha for testing?

You can use Sinon with Mocha by requiring both libraries in your test file. Then, you can use Sinon to create spies or mocks within your Mocha test cases.