Coursera catalog view test

catalog_test.js

describe('catalogyBody', function() {

  var chai        = require('chai');
  var path        = require('path');
  var env         = require(path.join(testDir, 'lib', 'environment'));
  var requirejs   = env.requirejs(staticDir);
  var sinon       = requirejs('js/lib/sinon');
  var fs          = require('fs');
  var server;
  var router;

  describe('catalog list', function(){

    beforeEach(function() {
      server = sinon.fakeServer.create();

      // Coursera.router.navigate will never work because history/routes haven't been set up
      // mock these calls when a view needs them, so tests do not block
      router = sinon.stub(Coursera.router, 'navigate', function() { });
    });

    afterEach(function() {
      server.restore();
      router.restore();
    });

    var courses     = fs.readFileSync(path.join(__filename, '../../data/courses/courses.json'), 'utf-8');
    var Coursera    = requirejs('js/app/home');
    var catalogBody = requirejs('pages/home/catalog/catalogBody');

    it('should render the catalog', function(done) {
      server.respondWith("GET", Coursera.config.url.api + "topic/list?full=1", 
        [200, {"Content-Type":"application/json"}, courses]);
      var view = new catalogBody();

      // render does an ajax call which calls renderTopics, so we need
      // to stub it, so we can catch the ajax return call, and then call renderTopics manually
      var renderTopics = sinon.stub(view, 'renderTopics', function() {
        renderTopics.restore();
        view.renderTopics.apply(view, arguments);
        chai.expect(view.$('.coursera-catalog-course-listing-box').size()).to.be.equal(10);
        done();
      });

      view.render();
      server.respond();
    });
  });
});