我是angularjs单元测试的新手。我正在使用Jasmine，karma进行单元测试。
我编写了一个angularjs服务来管理我对AWS cognito的请求和响应。它公开了登录，注册等API，这些API将在内部使用aws cognito sdk。
当我构建我的应用程序并在本地部署它时，此服务正常工作。
当我尝试为此服务编写单元测试并运行时，它失败并出现以下错误
TypeError：undefined不是对象（评估'r.CognitoIdentityServiceProvider'） 在app / third-party / amazon-cognito-identity.min.js：19
我假设我在测试框架中做错了什么。
这是我的角度服务（aws.service.js）
(function(){
'use strict';
angular
.module('portal')
.factory('AWSService',AWSService);
AWSService.$inject = ['$rootScope'];
function AWSService($rootScope){
var service = {};
service.Login = Login;
service.SignOut = SignOut;
service.IsSessionValid = IsSessionValid;
service.Register = Register;
service.ConfirmReg = ConfirmReg;
service.GetUserDetails = GetUserDetails;
initService();
return service;
function initService(){
// Cognito Identity Pool Id
AWS.config.region = 'XXXXXXX'; // Region
AWS.config.credentials = new AWS.CognitoIdentityCredentials({
IdentityPoolId: 'XXXXXXXXX'
});
// Cognito User Pool Id
AWSCognito.config.region = 'XXXXXXXX';
AWSCognito.config.credentials = new AWS.CognitoIdentityCredentials({
IdentityPoolId: 'XXXXXXXX'
});
}
function getUserPool(){
var poolData = { UserPoolId : 'XXXXXXX',
ClientId : 'XXXXXXXXXXXX'
};
var userPool = new AWSCognito.CognitoIdentityServiceProvider.CognitoUserPool(poolData);
return userPool;
}
function Login(authDetails, callback) {
console.log('In AWS service login');
if (authDetails == null || authDetails.UserName == null || authDetails.Password == null) {
throw new Error('Username and password information are required.');
}
try{
var authenticationData = {
Username : authDetails.UserName,
Password : authDetails.Password,
};
var authenticationDetails = new AWSCognito.CognitoIdentityServiceProvider
.AuthenticationDetails(authenticationData);
var userData = {
Username : authDetails.UserName,
Pool : getUserPool()
};
var cognitoUser = new AWSCognito.CognitoIdentityServiceProvider.CognitoUser(userData);
cognitoUser.authenticateUser(authenticationDetails, callback);
} catch(e){
alert(e.name+" "+e.message)
}
}
function IsSessionValid(callback) {
var cognitoUser = getUserPool().getCurrentUser();
if (cognitoUser != null) {
cognitoUser.getSession(function(err, session) {
if (err) {
alert(err);
callback({ success: false, message: 'Session is invalid'});
}
console.log('session validity: ' + session.isValid());
callback({ success: true, message: 'Session is valid'});
});
}
}
function SignOut(){
var cognitoUser = getUserPool().getCurrentUser();
if (cognitoUser != null) {
console.log('session is valid, signing out');
cognitoUser.signOut();
}else {
console.log('session already expired');
}
}
function Register(userInfo, callback){
var attributeList = [];
var dataEmail = {
Name : 'email',
Value : userInfo.email
};
var dataFirstName = {
Name : 'given_name',
Value : userInfo.firstName
};
var dataLastName = {
Name : 'family_name',
Value : userInfo.lastName
};
var attributeEmail = new AWSCognito.CognitoIdentityServiceProvider.CognitoUserAttribute(dataEmail);
var attributeFirstName = new AWSCognito.CognitoIdentityServiceProvider.CognitoUserAttribute(dataFirstName);
var attributeLastName = new AWSCognito.CognitoIdentityServiceProvider.CognitoUserAttribute(dataLastName);
attributeList.push(attributeEmail);
attributeList.push(attributeFirstName);
attributeList.push(attributeLastName);
getUserPool().signUp(userInfo.email, userInfo.password, attributeList, null, callback);
}
function GetUserDetails(callback){
IsSessionValid(function (response) {
if (response.success) {
var cognitoUser = getUserPool().getCurrentUser();
cognitoUser.getUserAttributes(function(err, result) {
if (err) {
alert(err);
return;
}
for (i = 0; i < result.length; i++) {
console.log('attribute ' + result[i].getName() + ' has value ' + result[i].getValue());
}
})
}
else{
console.log('invalid session');
}
})
}
function ConfirmReg(confirmCode, callback){
}
}
})();
这是我的单元测试代码（aws.services.test.js）
'use strict'
describe('AWSService', function(){
var AWSService, myRootscope;
console.log('In service describe');
beforeEach(angular.mock.module("portal"))
it("Should have created AWS service", inject(function($rootScope, _AWSService_){
console.log('Service injection start');
AWSService = _AWSService_;
myRootscope = $rootScope;
console.log('Service injection done');
}));
it('Test AWS service - login', function(){
try{
console.log('Calling login function');
AWSService.Login(null, null);
}catch(e){
console.log(e);
expect(e.message).toEqual('Username and password information are required.');
}
});
});
我的Karma配置
module.exports = function(config) {
'use strict';
config.set({
// enable / disable watching file and executing tests whenever any file changes
autoWatch: true,
// base path, that will be used to resolve files and exclude
basePath: '../',
// testing framework to use (jasmine/mocha/qunit/...)
// as well as any additional frameworks (requirejs/chai/sinon/...)
frameworks: [
'jasmine',
'browserify'
],
// list of files / patterns to load in the browser
files: [
// bower:js
'bower_components/jquery/dist/jquery.js',
'bower_components/angular/angular.js',
'bower_components/bootstrap/dist/js/bootstrap.js',
'bower_components/angular-animate/angular-animate.js',
'bower_components/angular-cookies/angular-cookies.js',
'bower_components/angular-resource/angular-resource.js',
'bower_components/angular-route/angular-route.js',
'bower_components/angular-sanitize/angular-sanitize.js',
'bower_components/angular-touch/angular-touch.js',
'bower_components/aws-sdk-js/dist/aws-sdk.js',
'bower_components/moment/moment.js',
'bower_components/sjcl/sjcl.js',
'bower_components/jsbn/jsbn.js',
'bower_components/angular-mocks/angular-mocks.js',
// endbower
'app/*.js',
'app/app-services/*.js',
'app/**/*.js',
'test/mock/**/*.js',
'test/spec/**/*.js'
],
// Browserify config
browserify: {
watch: true,
debug: true
},
preprocessors: {
'app/*.js' : ['browserify'],
'test/spec/services/aws.services.test.js': [ 'browserify' ]
},
// list of files / patterns to exclude
exclude: ['karma.conf.js', 'protractor-conf.js'],
// web server port
port: 8080,
// Start these browsers, currently available:
// - Chrome
// - ChromeCanary
// - Firefox
// - Opera
// - Safari (only Mac)
// - PhantomJS
// - IE (only Windows)
browsers: [
'PhantomJS'
],
// Which plugins to enable
plugins: [
'karma-phantomjs-launcher',
'karma-jasmine',
'karma-chrome-launcher',
'karma-browserify',
],
// Continuous Integration mode
// if true, it capture browsers, run tests and exit
singleRun: false,
colors: true,
// level of logging
// possible values: LOG_DISABLE || LOG_ERROR || LOG_WARN || LOG_INFO || LOG_DEBUG
logLevel: config.LOG_DEBUG,
// Uncomment the following lines if you are using grunt's server to run the tests
// proxies: {
// '/': 'http://localhost:9000/'
// },
// URL root prevent conflicts with the site root
// urlRoot: '_karma_'
});
};
我知道我必须嘲笑aws-sdk以确保我的服务单独进行单元测试。但在去那里之前，我甚至在加载我的模块之前就看到了业力失败。
我正在使用以下命令运行我的测试
karma start karma.conf.js --browsers=Chrome --single-run=false
我在控制台中收到以下错误
Chrome 53.0.2785 (Windows 10 0.0.0) ERROR
Uncaught TypeError: Cannot read property 'CognitoIdentityServiceProvider' of undefined
at app/third-party/amazon-cognito-identity.min.js:19
我怀疑我的AWS开发工具包及其依赖项是否未正确加载。如果您在我的代码中发现任何问题，请通知我。
答案 0 :(得分：0)
您应该将与cognito（amazon-cognito-identity和aws cognito sdk）相关的文件放入Karma的文件字段中。