Promise Outside of Describe and It Blocks in Mocha.js

Question

Can promise be run and fulfilled outside of Describe and It blocks in Mocha.js? I have following case:

login().then(function(spaces) {
    if (spaces.length > 1) {
        _.forEach(space, function() {
            describe(space.name, function() {
                it('test1');
                it('test2');
                it('test3');
            });
        });
    } else {
        describe(space.name, function() {
            it('test4');
        });
    }
});

But the tests don't seem to run. I tried to add return in front of login() as well since login is a promise. Still no luck. I would like to have my space.name listed out as describe name, but that name will be a result of login function...