Added a test class for timeline table helper.

karma.conf.js

@@ -35,6 +35,7 @@ module.exports = function(config) {
       'app/assets/javascripts/angular/helpers/filters-helper.js',
       'app/assets/javascripts/angular/helpers/components/work-packages-helper.js',
       'app/assets/javascripts/angular/helpers/work-packages-table-helper.js',
+      'app/assets/javascripts/angular/helpers/timeline-table-helper.js',
       'app/assets/javascripts/angular/helpers/function-decorators.js',
 
       'app/assets/javascripts/angular/filters/work-packages-filters.js',

karma/tests/helpers/timeline-table-helper-test.js

@@ -0,0 +1,61 @@
+//-- copyright
+// OpenProject is a project management system.
+// Copyright (C) 2012-2014 the OpenProject Foundation (OPF)
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License version 3.
+//
+// OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
+// Copyright (C) 2006-2013 Jean-Philippe Lang
+// Copyright (C) 2010-2013 the ChiliProject Team
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation; either version 2
+// of the License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+//
+// See doc/COPYRIGHT.rdoc for more details.
+//++
+
+/*jshint expr: true*/
+
+describe('Timeline table helper', function() {
+  var TimelineTableHelper;
+
+  beforeEach(module('openproject.timelines.helpers'));
+  beforeEach(inject(function(_TimelineTableHelper_) {
+    TimelineTableHelper = _TimelineTableHelper_;
+  }));
+
+  describe('setRowLevelVisibility', function() {
+    var setRowLevelVisibility;
+
+    beforeEach(function() {
+      setRowLevelVisibility = TimelineTableHelper.setRowLevelVisibility;
+    });
+
+    describe('with 3 levels', function() {
+      it('should set levels 0 to 3 to visible', function() {
+        var nodes = [];
+        for(i = 0; i < 10; i++){
+          var node = Object.create(TreeNode);
+          node.level = i;
+          nodes.push(node);
+        }
+        setRowLevelVisibility(nodes, 3);
+
+        expect(nodes.filter(function(node){ return node.visible; }).length).to.equal(4);
+      });
+    });
+
+  });
+});