143 lines
5.3 KiB
JavaScript
143 lines
5.3 KiB
JavaScript
/*****************************************************************************
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* Open MCT, Copyright (c) 2014-2016, United States Government
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* as represented by the Administrator of the National Aeronautics and Space
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* Administration. All rights reserved.
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*
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* Open MCT is licensed under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0.
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* Open MCT includes source code licensed under additional open source
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* licenses. See the Open Source Licenses file (LICENSES.md) included with
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* this source code distribution or the Licensing information page available
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* at runtime from the About dialog for additional information.
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*****************************************************************************/
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/**
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* CompositionCapabilitySpec. Created by vwoeltje on 11/6/14.
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*/
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define(
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["../../src/capabilities/RelationshipCapability"],
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function (RelationshipCapability) {
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var DOMAIN_OBJECT_METHODS = [
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"getId",
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"getModel",
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"getCapability",
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"hasCapability",
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"useCapability"
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];
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describe("The relationship capability", function () {
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var mockDomainObject,
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mockInjector,
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mockObjectService,
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relationship;
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// Composition Capability makes use of promise chaining,
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// so support that, but don't introduce complication of
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// native promises.
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function mockPromise(value) {
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return {
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then: function (callback) {
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return mockPromise(callback(value));
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}
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};
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}
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beforeEach(function () {
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mockDomainObject = jasmine.createSpyObj(
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"domainObject",
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DOMAIN_OBJECT_METHODS
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);
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mockObjectService = jasmine.createSpyObj(
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"objectService",
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["getObjects"]
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);
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mockInjector = {
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get: function (name) {
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return (name === "objectService") && mockObjectService;
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}
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};
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mockObjectService.getObjects.andReturn(mockPromise([]));
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relationship = new RelationshipCapability(
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mockInjector,
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mockDomainObject
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);
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});
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it("applies only to models with a 'relationships' field", function () {
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expect(RelationshipCapability.appliesTo({ relationships: {} }))
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.toBeTruthy();
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expect(RelationshipCapability.appliesTo({}))
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.toBeFalsy();
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});
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it("requests ids found in model's composition from the object service", function () {
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var ids = ["a", "b", "c", "xyz"];
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mockDomainObject.getModel.andReturn({ relationships: { xyz: ids } });
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relationship.getRelatedObjects('xyz');
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expect(mockObjectService.getObjects).toHaveBeenCalledWith(ids);
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});
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it("provides a list of relationship types", function () {
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mockDomainObject.getModel.andReturn({ relationships: {
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abc: ['a', 'b'],
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def: "not an array, should be ignored",
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xyz: []
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} });
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expect(relationship.listRelationships()).toEqual(['abc', 'xyz']);
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});
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it("avoids redundant requests", function () {
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// Lookups can be expensive, so this capability
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// should have some self-caching
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mockDomainObject.getModel
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.andReturn({ relationships: { xyz: ['a'] } });
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// Call twice; response should be the same object instance
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expect(relationship.getRelatedObjects('xyz'))
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.toBe(relationship.getRelatedObjects('xyz'));
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// Should have only made one call
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expect(mockObjectService.getObjects.calls.length)
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.toEqual(1);
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});
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it("makes new requests on modification", function () {
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// Lookups can be expensive, so this capability
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// should have some self-caching
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var testModel;
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testModel = { relationships: { xyz: ['a'] } };
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mockDomainObject.getModel.andReturn(testModel);
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// Call twice, but as if modification had occurred in between
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relationship.getRelatedObjects('xyz');
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testModel.modified = 123;
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relationship.getRelatedObjects('xyz');
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// Should have only made one call
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expect(mockObjectService.getObjects.calls.length)
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.toEqual(2);
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});
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});
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}
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);
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