TypeError:无法读取未定义的属性“constructor”

时间:2016-11-23 11:49:26

标签: javascript angularjs selenium protractor

  

vegan @ vegan:〜/ hb-x / gateway $ gulp量角器[14:44:36]   使用gulpfile~ / hb-x / gateway / gulpfile.js [14:44:36]   启动'量角器'...直接使用ChromeDriver ... [启动器]   运行WebDriver的1个实例    - 用户未登录,因此尝试登录x-用户未登录,因此尝试登录xy-用户未登录,因此尝试登录

     

/家庭/素食主义者/ HB-X /网关/ node_modules /硒的webdriver / LIB / goog /../的webdriver / promise.js:2965   return fn.constructor.name ==='GeneratorFunction';              ^ TypeError:无法读取未定义的属性'constructor'       at Object.promise.ControlFlow.goog.defineClass.goog.defineClass.promise.isGenerator   (/家/素食主义者/ HB-X /网关/ node_modules /硒的webdriver / LIB / goog /../的webdriver / promise.js:2965:12)

这是我的课程,其中错误是

'use strict';

var CommonPageObject = function() {

    this.baseUrl = "http://localhost:8080";

    this.product = element.all(by.css('[data-tab-item="product"]')).first();



    this.loginTextLocator = element(by.css('button.layout-align-xs-start-start'));
    this.loginPageHeader = element(by.css('header'));

    this.loginUsername = element(by.model('vm.model.username'));
    this.loginPassword = element(by.model('vm.model.password'));
    this.loginButton = element(by.css('[aria-label="login.button"]'));

    this.isLoggedIn = function () {
        this.get();

        var self = this;

        this.loginTextLocator.isPresent().then(function(isElementDisplayed){
            if(isElementDisplayed){
                console.log('- User not logged in, so trying to log in');

                self.ctaLogin('cta', 'M0ha44bOw-36SMm');
            }
            else{
                console.log('- User already logged in');
            }
        })
    };

    this.get = function() {
        browser.get(this.baseUrl);
    };

    this.ctaLogin = function(name,password) {

        this.get();//necessary?
        browser.driver.wait(protractor.until
            .loginPageHeader);

        this.setName(name);
        this.setPassword(password);

        this.loginButton.click();
    };

    this.setName = function(name) {browser.sleep(5000);console.log('x- User not logged in, so trying to log in');
        this.loginUsername.clear().sendKeys(name);

    };

    this.setPassword = function(password) {browser.sleep(5000);console.log('xy- User not logged in, so trying to log in');
        this.loginPassword.clear().sendKeys(password);

    };

};

module.exports = CommonPageObject;

这个类叫它

'use strict';


var LogoutPageObject = require('./logoutControllerPageObject');

describe(
    'Logout module', function () {

        var logoutPageObject = new LogoutPageObject();

        beforeEach(
            function(){
                console.log('Logout Test starting');
                logoutPageObject.isLoggedIn();

这是来自promise.js,其中错误是lin 2965

promise.isGenerator = function(fn) {
  return fn.constructor.name === 'GeneratorFunction';
};

我也回复了一些东西但是相同的

this.isLoggedIn = function () {
        this.get();

        var self = this;

        this.loginTextLocator.isPresent().then(function(isElementDisplayed){
            if(isElementDisplayed){
                console.log('- User not logged in, so trying to log in');

                self.ctaLogin('cta', 'M0ha44bOw-36SMm');
            }
            else{
                console.log('- User already logged in');
            }
        });
        return null;
    };

可能是因为这个

this.isLoggedIn = commonPageObject.isLoggedIn();

我能为此做些什么?

1 个答案:

答案 0 :(得分:1)

我改为调用函数

this.isLoggedIn = function(){
            commonPageObject.isLoggedIn();
       };

它有效。在我试图像变量一样调用之前。