How to chai test a node server that returns a promise?

I want to just make sure that my server is running before I create PR's locally to test that nothing is broken.

server.js

My server exports a promise

module.exports = Promise.all([
    hbsPartialsLoaded,
])
.then(() => {
    let server;

    if (!isTestEnvironment) {
        server = app.listen(config.port);
    }

    return { server, app };
});

tests

let { expect, request } = require('chai')
    .use(require('chai-http'))
    .use(require('chai-cheerio'));
const config = require('../../app/config');
const sever = require('../../app/sever');

describe('server response', function () {
    return new Promise((resolve, reject) => {
        sever.then(() => {
            console.info(arguments);
            resolve();
        })
    })
});

Running Tests

 NODE_ENV=test mocha --timeout 20000 --recursive test/ --compilers js:babel-core/register



  0 passing (1ms)

My tests are never run. How can I get it so I wait for sever.js to finish its promises before the tests are run?

via Jamie Hutber