stub-service-interface.js
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/*
* ADOBE CONFIDENTIAL
*
* Copyright 2016 Adobe Systems Incorporated
* All Rights Reserved.
*
* NOTICE: All information contained herein is, and remains
* the property of Adobe Systems Incorporated and its suppliers,
* if any. The intellectual and technical concepts contained
* herein are proprietary to Adobe Systems Incorporated and its
* suppliers and may be covered by U.S. and Foreign Patents,
* patents in process, and are protected by trade secret or copyright law.
* Dissemination of this information or reproduction of this material
* is strictly forbidden unless prior written permission is obtained
* from Adobe Systems Incorporated.
*/
/* globals sinon */
define('screens/player/shared/test-helper/stub-service-interface', [], function() {
'use strict';
/**
* A Test Helper that returns a stubbed Service Interface instead of the
* real Service. This is only useful for isolated unit tests where you
* want to mock the dependencies.
*
* Please make sure to call `restore` within `afterEach`. Otherwise the
* mock might leak in other tests.
*
* @param {ServiceAdmin} [serviceAdminInstance] A ServiceAdmin instance.
* @param {Object} [anInterface] The Service Interface.
* @param {Object} [additionalFunctions] Additional Functions to override.
* @returns {Object} The API of the TestHelper
*/
return function(serviceAdminInstance, anInterface, additionalFunctions) {
var getServiceStub;
var sandbox = sinon.sandbox.create();
try {
getServiceStub = sandbox.stub(serviceAdminInstance, 'getService');
} catch (e) {
// Simple workaound for sinon's "Object already stubbed" errors.
getServiceStub = serviceAdminInstance.getService;
}
// Stub Functions of Interface.
var stubbedApi = Object.getOwnPropertyNames(anInterface)
.filter(function(propName) {
return typeof anInterface[propName] === 'function';
})
.reduce(function(previous, current) {
previous[current] = sandbox.stub();
return previous;
}, {});
// Stub Functions of Interface.
if (additionalFunctions) {
Object.getOwnPropertyNames(additionalFunctions)
.forEach(function(propName) {
if (typeof additionalFunctions[propName] === 'function') {
stubbedApi[propName] = additionalFunctions[propName].bind(stubbedApi);
}
});
}
// Fake the return value of `ServerAdmin.getService`.
getServiceStub
.withArgs(anInterface.serviceName)
.returns(stubbedApi);
return {
api: stubbedApi,
restore: function() {
sandbox.restore();
}
};
};
});