command-handler-service.test.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 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, describe, it, beforeEach, afterEach, expect */
/* eslint max-nested-callbacks: 0 */
define([
'screens/player/shared/serviceadmin',
'screens/player/shared/test-helper/stub-service-interface',
'screens/player/shared/test-helper/service',
'screens/player/command/command',
'screens/player/firmware/command/command-handler',
'screens/player/firmware/command/impl/command-handler-service'
], function(ServiceAdmin, stubServiceInterface, serviceTestHelper, Command, CommandHandler, CommandHandlerService) {
'use strict';
describe(CommandHandlerService.serviceName, function() {
var commandName;
var getServicesStub;
var mockCommandA;
var mockCommandB;
var payload;
beforeEach(function() {
getServicesStub = sinon.stub(ServiceAdmin, 'getServices');
mockCommandA = sinon.stub({ canHandle: function() {}, handleCommand: function() {}});
mockCommandB = sinon.stub({ canHandle: function() {}, handleCommand: function() {}});
commandName = 'testCommand';
payload = {some: 'payload'};
});
afterEach(function() {
getServicesStub.restore();
});
serviceTestHelper.runDefaultTests(CommandHandlerService, CommandHandler.serviceName);
it('returns undefined', function() {
getServicesStub.returns([]);
expect(CommandHandlerService.handleCommand()).to.be.undefined;
});
it('calls `canHandle` with command name', function() {
getServicesStub.returns([mockCommandA]);
CommandHandlerService.handleCommand(commandName);
expect(mockCommandA.canHandle).to.have.been.called.calledWith(commandName);
});
it('calls `canHandle` of multiple Handlers with command name', function() {
getServicesStub.returns([mockCommandA, mockCommandB]);
CommandHandlerService.handleCommand(commandName);
expect(mockCommandA.canHandle).to.have.been.called.calledWith(commandName);
expect(mockCommandB.canHandle).to.have.been.called.calledWith(commandName);
});
it('calls `handleCommand` with command name and payload when `canHandle` returns true', function() {
getServicesStub.returns([mockCommandA]);
mockCommandA.canHandle.returns(true);
CommandHandlerService.handleCommand(commandName, payload);
expect(mockCommandA.handleCommand).to.have.been.called.calledWith(commandName, payload);
});
it('calls `handleCommand` of multiple Handlers with command name and payload when `canHandle` returns true', function() {
getServicesStub.returns([mockCommandA, mockCommandB]);
mockCommandA.canHandle.returns(true);
mockCommandB.canHandle.returns(true);
CommandHandlerService.handleCommand(commandName, payload);
expect(mockCommandA.handleCommand).to.have.been.called.calledWith(commandName, payload);
expect(mockCommandB.handleCommand).to.have.been.called.calledWith(commandName, payload);
});
it('does not call `handleCommand` when `canHandle` returns false', function() {
getServicesStub.returns([mockCommandA]);
mockCommandA.canHandle.returns(false);
CommandHandlerService.handleCommand(commandName, payload);
expect(mockCommandA.handleCommand).not.to.have.been.called;
});
it('calls `canHandle` of Handlers in order', function() {
getServicesStub.returns([mockCommandA, mockCommandB]);
CommandHandlerService.handleCommand(commandName);
expect(mockCommandA.canHandle.calledBefore(mockCommandB.canHandle)).to.be.true;
});
it('calls `handleCommand` of Handlers in order', function() {
getServicesStub.returns([mockCommandA, mockCommandB]);
mockCommandA.canHandle.returns(true);
mockCommandB.canHandle.returns(true);
CommandHandlerService.handleCommand(commandName);
expect(mockCommandA.handleCommand.calledBefore(mockCommandB.handleCommand)).to.be.true;
});
it('calls `handleCommand` of 2nd Handler also when 1st Handler throws an Error', function() {
getServicesStub.returns([mockCommandA, mockCommandB]);
mockCommandA.canHandle.returns(true);
mockCommandB.canHandle.returns(true);
mockCommandA.handleCommand.throws();
CommandHandlerService.handleCommand(commandName);
expect(mockCommandB.handleCommand).to.have.been.called;
});
});
});