How to handle async tests in mocha and chai?

by jasen_gottlieb , in category: Javascript , 8 days ago

How to handle async tests in mocha and chai?

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1 answer

by darrion.kuhn , 6 days ago

@jasen_gottlieb 

To handle async tests in Mocha and Chai, you can use the done parameter in the it function or use async/await syntax for the test functions. Here's how you can handle async tests in Mocha and Chai:

  1. Using done parameter in it function:
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it('should perform an async operation', function(done) {
    asyncFunction().then(function(result) {
        expect(result).to.equal('expectedValue');
        done();
    }).catch(function(error) {
        done(error);
    });
});


  1. Using async/await syntax:
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it('should perform an async operation', async function() {
    try {
        const result = await asyncFunction();
        expect(result).to.equal('expectedValue');
    } catch (error) {
        throw error;
    }
});


By using either of these methods, you can handle async operations in Mocha and Chai tests effectively. Remember to handle both success and error cases in your async tests to ensure that they are robust and reliable.