how to resolve async await inside a unit test - javascript

Question

I have a lambda for which I'd like to write unit tests for. I'm using async await but I'm getting issues with resolve promises. I'd like to test the different conditions, how can I write the test to resolve and stop seeing the timeouts?

Thanks in advance.

Error: Timeout of 2000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves.

--- unit

describe('tests', function() {

    describe('describe an error', () => {
        it('should return a 500', (done) => {
            handler('', {}, (err, response) => {
                expect(err.status).to.eq('failed')
                done()
            })
        })
    })

});

-- handler

export const handler = async (event, context, callback) => { 

 return callback(null, status: 500 )

})

Answer 1

Try following:

describe('tests', function() {
    describe('describe an error', () => {
        it('should return a 500', (done) => {
            await handler('', {}, (err, response) => {
                expect(err.status).to.eq('failed');
            })
            done();
        })
    })
});

or

describe('tests', function() {
    describe('describe an error', () => {
        it('should return a 500', async () => {
            const error = 
              await handler('', {}, (err, response) => Promise.resolve(err))
            expect(error.status).to.eq('failed');
        })
    })
});

Anyway, I think, you need to await your async handler...