[Timeline] Add test cases for TimelineTraverser

platform/features/timeline/test/actions/TimelineTraverserSpec.js

@@ -0,0 +1,107 @@
+/*****************************************************************************
+ * Open MCT Web, Copyright (c) 2009-2015, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT Web is licensed under the Apache License, Version 2.0 (the
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+/*global define,describe,it,expect,beforeEach,waitsFor,jasmine,window,afterEach*/
+
+define([
+    "../../src/actions/TimelineTraverser"
+], function (TimelineTraverser) {
+    'use strict';
+
+    describe("TimelineTraverser", function () {
+        var testModels,
+            mockDomainObjects,
+            traverser;
+
+        function addMockDomainObject(id) {
+            var mockDomainObject = jasmine.createSpyObj(
+                    'domainObject-' + id,
+                    [
+                        'getId',
+                        'getCapability',
+                        'useCapability',
+                        'hasCapability',
+                        'getModel'
+                    ]
+                ),
+                model = testModels[id];
+
+            mockDomainObject.getId.andReturn(id);
+            mockDomainObject.getModel.andReturn(model);
+
+            mockDomainObject.hasCapability.andCallFake(function (c) {
+                return c === 'composition' ? !!model.composition :
+                    c === 'relationship' ? !!model.relationships :
+                        false;
+            });
+
+            mockDomainObjects[id] = mockDomainObject;
+        }
+
+        beforeEach(function () {
+            testModels = {
+                a: { composition: [ 'b', 'c' ]},
+                b: { composition: [ 'c' ] },
+                c: { relationships: { modes: [ 'd' ] } },
+                d: {},
+                unreachable: {}
+            };
+
+            mockDomainObjects = {};
+            Object.keys(testModels).forEach(addMockDomainObject);
+
+
+            traverser = new TimelineTraverser(mockDomainObjects.a);
+        });
+
+        describe("buildObjectList", function () {
+            var objects;
+
+            function contains(id) {
+                return objects.indexOf(mockDomainObjects[id]) !== -1;
+            }
+
+            beforeEach(function () {
+                traverser.buildObjectList().then(function (objectList) {
+                    objects = objectList;
+                });
+            });
+
+            it("includes the object originally passed in", function () {
+                expect(contains('a')).toBe(true);
+            });
+
+            it("includes objects reachable via composition", function () {
+                expect(contains('b')).toBe(true);
+                expect(contains('c')).toBe(true);
+            });
+
+            it("includes objects reachable via relationships", function () {
+                expect(contains('d')).toBe(true);
+            });
+
+            it("does not include unreachable objects", function () {
+                expect(contains('unreachable')).toBe(false);
+            });
+        });
+
+    });
+});