How to use q - 10 common examples

/* global describe, beforeEach, afterEach, it, emit */

/**
 * Unit tests for couchdb-model
 */

var should = require('chai').should();
var couchDBModel = require('../lib/couchdb-model.js'); 
var createNano = require('nano');
var extend = require('node.extend');
var Q = require('q');
var httpMocks = require('node-mocks-http');

Q.longStackSupport = true;

var COUCHDB_BASE_URL = process.env.COUCHDB_BASE_URL;
if (!COUCHDB_BASE_URL) {
	throw new Error(
		'$COUCHDB_BASE_URL environment variable is not set. ' + 
		'Please provide a working couchdb base URL to run the tests.');
}

var COUCHDB_DB_NAME = process.env.COUCHDB_DB_NAME || 'couchdb-model-test';

var nano = createNano(COUCHDB_BASE_URL);

describe('couchdb-model REST API', function() {
	beforeEach(function(done) {
		nano.db.destroy(COUCHDB_DB_NAME, function() {
			nano.db.create(COUCHDB_DB_NAME, function(error) {

/* global describe, beforeEach, afterEach, it */
'use strict';

var fire = require('..');

var assert = require('assert');
var crypto = require('crypto');
var uuid = require('node-uuid');

var Q = require('q');
Q.longStackSupport = true;

describe('model methods', function() {
    var models;
    var app = null;

    beforeEach(function(done) {
        app = fire.app('methods', {});
        fire.start()
            .then(function() {
                models = app.models;

                done();
            })
            .done();
    });

// -*- mode: js; indent-tabs-mode: nil; js-basic-offset: 4 -*-
//
// This file is part of ThingEngine
//
// Copyright 2016 The Board of Trustees of the Leland Stanford Junior University
//
// Author: Giovanni Campagna 
//
// See COPYING for details
"use strict";

const Q = require('q');
Q.longStackSupport = true;
process.on('unhandledRejection', (up) => { throw up; });

const assert = require('assert');

const ThingTalk = require('thingtalk');
const Ast = ThingTalk.Ast;
const Utils = require('thingtalk/lib/utils');

const Engine = require('../lib/engine');
const ExecWrapper = require('../lib/apps/exec_wrapper');

function* timerTest(__builtin,env) {
  "use strict";
  let _t_0;
  let _t_1;
  let _t_2;

function findAllAvailableVersionsFallBack () {
    // console.log('findAllAvailableVersionsFALLBACK');

    var versions = ['15.5', '15.0', '14.0', '12.0', '4.0'];
    events.emit('verbose', 'Searching for available MSBuild versions...');

    return Q.all(versions.map(checkMSBuildVersion)).then(function (unprocessedResults) {
        return unprocessedResults.filter(function (item) {
            return !!item;
        });
    });
}

getTeams: function (username, password) {
            var resultQ = q.defer();

            login(username, password).then(function (data) {

                console.log('Getting Yahoo teams for username/password = ' + username + '/*****');

                // Load html from fantasy football screen to extract team names
                var $ = cheerio.load(data.body);

                var teamLinks = $('.Fz-sm').find('a');

                var promises = [];
                for (var i = 0; i < teamLinks.length; i++) {
                    var teamLink = teamLinks[i];
                    if (teamLink.attribs.href !== undefined && teamLink.attribs.href.indexOf('/f1/') > -1 && (i % 2 === 0)) {
                        var teamUrl = 'http://football.fantasysports.yahoo.com' + teamLink.attribs.href;
                        promises.push(getTeam(teamUrl, data.cookieJar));

function validatePackageName (package_name) {
    // Make the package conform to Java package types
    // http://developer.android.com/guide/topics/manifest/manifest-element.html#package
    // Enforce underscore limitation
    var msg = 'Error validating package name. ';

    if (!/^[a-zA-Z][a-zA-Z0-9_]+(\.[a-zA-Z][a-zA-Z0-9_]*)+$/.test(package_name)) {
        return Q.reject(new CordovaError(msg + 'Package name must look like: com.company.Name'));
    }

    // Class is a reserved word
    if (/\b[Cc]lass\b/.test(package_name)) {
        return Q.reject(new CordovaError(msg + '"class" is a reserved word'));
    }

    return Q.resolve();
}

var file;
        var oldPath;
        var newPath;

        // Remove any OS specific files from the files array
        // before checking its length
        files = files.filter(junk.isnt);

        // Only rename if there's only one file and it's not the json
        if (files.length === 1 && !/^(bower|component)\.json$/.test(files[0])) {
            file = files[0];
            this._singleFile = 'index' + path.extname(file);
            oldPath = path.join(this._tempDir, file);
            newPath = path.join(this._tempDir, this._singleFile);

            return Q.nfcall(fs.rename, oldPath, newPath);
        }
    }.bind(this));
};

msg.exitcode = 0;
                    // Send message back to controller.
                    cmdport.send(args.topic, msg);
                    return;
                }
            }

            var nextcmd = msgProcessor.process(msg, args.topic);
            if (nextcmd == null) {
                //client.end();
                // setTimeout(function() {
                //     process.exit();
                // }, 1000);
                return;
            }
            var setenvPromise = Q.resolve();
            if(nextcmd.setenv) {
                for (var target in nextcmd.env) {
                    var newenv = nextcmd.env[target];
                    var envmsg = {
                        command: "setenv",
                        logdir: nextcmd.env[target]["logdir"],
                    }
                    if( typeof newenv["$path"] != 'undefined'){
                        envmsg.path = newenv["$path"];
                        delete newenv["$path"];
                    }
                    envmsg.env = newenv;
                    setenvPromise = sendCommand(nextcmd.env[target][target], envmsg);
                }
            }
            var clientTopic = nextcmd.target;

function namespace(uri, httpd, resources){
		var iri = new (require('iri').IRI)(uri);
		var pathParts = (iri.path() || '').split('/');
		if(pathParts[1]==='about:setup'){
			var base = iri.resolveReference('/about:setup/').toString();
			return require('q').resolve({
				// the base is... whatever the page was requested with
				base: base,
				// But the 'permalink' to the namespace is http://localhost/about:setup/
				resource: 'http://localhost/about:setup/'+iri.toString().substring(base.length),
				label: 'Setup',
				option: {
					'http://magnode.org/Setup': setupOpts,
					useTransformTypes: ['http://magnode.org/view/Setup'],
				}
			});
		}
	}

.then(function() {
    if (!appWasImported) {
      // Update app name if the app is not imported.
      return Q.ninvoke(fs, 'readFile', manifestDesktopFilename, { encoding: 'utf-8' }).then(function(manifestDesktopData) {
        var manifestDesktop;
        try {
          // jshint evil:true
          manifestDesktop = eval('(' + manifestDesktopData + ')');
          // jshint evil:false
        } catch (e) {
          console.error(e);
          return Q.reject('Unable to parse manifest ' + manifestDesktopFilename);
        }
        manifestDesktop.name = appName || path.basename(destAppDir);
        manifest.name = manifestDesktop.name;
        Q.ninvoke(fs, 'writeFile', manifestDesktopFilename, JSON.stringify(manifestDesktop, null, 4));
      });
    }
  })
  .then(function() {