How can I use Sinon for advanced testing scenarios?
Sinon is a powerful library for creating spies, mocks, and stubs in JavaScript. What specific scenario are you looking to test?
I want to test a function that makes an API call and handles the response.
You can use Sinon to stub the API call. This way, you can simulate different responses without making actual network requests.
Can you show me an example of stubbing an API call?
Sure! Here's a simple example: const stub = sinon.stub(api, 'fetchData').returns(Promise.resolve({ data: 'mock data' }));
This stubs the fetchData
method.
What about verifying that the function was called?
You can use sinon.assert.calledOnce(stub);
to verify that your stub was called exactly once.
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