[#2458] Add unit tests for the stats-nav module

ckanext/stats/public/ckanext/stats/test/index.html

@@ -38,9 +38,11 @@
     <script src="../../../base/javascript/i18n.js"></script>
     <script src="../../../base/javascript/main.js"></script>
     <script src="../javascript/modules/plot.js"></script>
+    <script src="../javascript/modules/stats-nav.js"></script>
 
     <!-- Suite -->
     <script src="./spec/modules/plot.spec.js"></script>
+    <script src="./spec/modules/stats-nav.spec.js"></script>
 
     <script>
       beforeEach(function () {

ckanext/stats/public/ckanext/stats/test/spec/modules/stats-nav.spec.js

@@ -0,0 +1,44 @@
+/*globals describe before beforeEach afterEach it assert sinon ckan jQuery */
+describe('ckan.module.StatsNavModule()', function () {
+  var StatsNavModule = ckan.module.registry['stats-nav'];
+
+  beforeEach(function () {
+    this.el = document.createElement('div');
+    this.sandbox = ckan.sandbox();
+    this.sandbox.body = this.fixture;
+    this.sandbox.location = {
+      href: '',
+      hash: ''
+    };
+    this.module = new StatsNavModule(this.el, {}, this.sandbox);
+
+    jQuery.fn.tab = sinon.stub();
+  });
+
+  afterEach(function () {
+    this.module.teardown();
+
+    delete jQuery.fn.tab;
+  });
+
+  describe('.initialize()', function () {
+    it('should listen for shown events and update the location.hash', function () {
+      var anchor = jQuery('<a />').attr('href', '#stats-test')[0];
+
+      this.module.initialize();
+      this.module.el.trigger({type: 'shown', target: anchor});
+
+      assert.equal(this.sandbox.location.hash, 'test');
+    });
+
+    it('should select the tab from the location hash on init', function () {
+      var anchor = jQuery('<a />').attr('href', '#stats-test').appendTo(this.el);
+
+      this.sandbox.location.hash = '#test';
+      this.module.initialize();
+
+      assert.called(jQuery.fn.tab);
+      assert.calledWith(jQuery.fn.tab, 'show');
+    });
+  });
+});