mock.js

/**
 * Mock the requests the google passport strategy will make
 *
 * @param  {String}         [email]                 The email address of the user that will sign in. If null, no email will be returned in the mocked response
 * @api private
 */
var _mockGoogleResponse = function(email) {
    // Require nock in-line as it messes with the HTTP stack
    // We only want this to happen in a controlled environment
    var nock = require('nock');

    // Ensure we can still perform regular HTTP requests during our tests
    nock.enableNetConnect();

    // Mock the "get access token" request in the OAuth2 cycle
    var accessToken = _.random(10000);
    var accessTokenRequest = nock('https://accounts.google.com')
        .post('/o/oauth2/token')
        .reply(200, {
            'access_token': accessToken,
            'refresh_token': 'foo'
        });

    // Mock the "get user profile" request
    var mockedResponse = {
        'kind': 'plus#person',
        'etag': 'RqKWnRU4WW46-6W3rWhLR9',
        'gender': 'male',
        'emails': [],
        'urls': [
            {'value': 'http://www.youtube.com/user/abc123','type': 'otherProfile','label': 'ABC 123'},
        ],
        'objectType': 'person',
        'id': _.random(100000),
        'displayName': 'Foo Bar',
        'name': {
            'familyName': 'Bar',
            'givenName': 'Foo'
        },
        'url': 'https://plus.google.com/' + _.random(10000000),
        'image': {
            'url': 'https://lh5.googleusercontent.com/-wfVubfsOBV0/AAAAAAAAAAI/AAAAAAAAAGQ/rEb5FmsQuiA/photo.jpg?sz=50',
            'isDefault': false
        },
        'isPlusUser': true,
        'language': 'en',
        'verified': false
    };
    if (email) {
        mockedResponse.emails.push({'value': email, 'type': 'account'});
    }
    var meRequest = nock('https://www.googleapis.com')
        .get('/plus/v1/people/me?access_token=' + accessToken)
        .reply(200, mockedResponse);

    // After the test finishes, there should be no pending mocked requests left as that could cause
    // all kinds of weird behaviour. This function call will assert nothing is left behind and fail
    // the test in case there was an unused mocked request
    afterEach(function() {
        var allDone = accessTokenRequest.isDone() && meRequest.isDone();

        // Ensure no mocked requests remain
        nock.cleanAll();

        // Complain loudly if a mocked request wasn't used as that would indicate something is wrong
        assert.ok(allDone);
    });
};