Mocha: Multiple "it" calls in single server request

I'm trying to test 40+ API endpoints using Mocha. I would like to perform a few subtests as a part of a single server call.

For example, I would like to test if it('returns valid JSON... and it('returns a valid status code..., etc.

configs.forEach(function(config) {

    describe(config.endpoint, () => {

        it('...', function(done) {
            server
                .post(config.endpoint)
                .send({})
                .expect('Content-type', /json/)
                .expect(200)
                .end(function(err, res) {

                    //it('has a proper status code', () => {
                    expect(res.status).toEqual(200);
                    //})

                    //it('does not have an error object', () => {
                    expect(res.body.hasOwnProperty('error')).toEqual(false);
                    //})

                    done();
                })
        })

    })

})

The problem is that I cannot nest it statements, but I am relying on the callback, via done() to dictate when the response has been received, so I have to wrap the call in an it statement...

Because some of these requests take half of a second to resolve, and there are 40+ of them, I don't want to create separate tests for these. Creating separate tests would also duplicate the config.endpoint, and I'd like to see if the tests are passing for each endpoint all in one place.

How can I create multiple tests for a single server call?