define(['backbone', 'URI', 'underscore', 'edx-ui-toolkit/js/utils/spec-helpers/ajax-helpers',
        'teams/js/spec_helpers/team_spec_helpers'],
    function(Backbone, URI, _, AjaxHelpers, TeamSpecHelpers) {
        'use strict';
        describe('TopicCollection', function() {
            var topicCollection;
            beforeEach(function() {
                topicCollection = TeamSpecHelpers.createMockTopicCollection();
            });

            var testRequestParam = function(self, param, value) {
                var requests = AjaxHelpers.requests(self),
                    request,
                    url,
                    params;
                topicCollection.fetch();
                request = AjaxHelpers.currentRequest(requests);
                url = new URI(request.url);
                params = url.query(true);
                expect(params[param]).toBe(value);
            };

            it('sets its page size based on initial page size', function() {
                expect(topicCollection.getPageSize()).toBe(5);
                expect(topicCollection.getTotalPages()).toBe(2);
            });

            it('sorts by name', function() {
                testRequestParam(this, 'order_by', 'name');
            });

            it('passes a course_id to the server', function() {
                testRequestParam(this, 'course_id', TeamSpecHelpers.testCourseID);
            });

            it('URL encodes its course_id ', function() {
                topicCollection.course_id = 'my+course+id';
                testRequestParam(this, 'course_id', 'my+course+id');
            });

            it('sets itself to stale on receiving a teams create or delete event', function() {
                expect(topicCollection.isStale).toBe(false);
                TeamSpecHelpers.triggerTeamEvent('create');
                expect(topicCollection.isStale).toBe(true);
                topicCollection.isStale = false;
                TeamSpecHelpers.triggerTeamEvent('delete');
                expect(topicCollection.isStale).toBe(true);
            });
        });
    });
