失败: this.runnable不是一个函数

Question

当我尝试运行我的量角器测试时，浏览器窗口会启动，几秒钟后它就会关闭，没有任何活动。控制台显示一个错误。

1) Mail suite Send email
  - Failed: this.runnable is not a function
  - Failed: this.runnable is not a function

Executed 1 of 1 spec (1 FAILED) in 0.074 sec.
[08:01:26] I/launcher - 0 instance(s) of WebDriver still running
[08:01:26] I/launcher - chrome #01 failed 1 test(s)
[08:01:26] I/launcher - overall: 1 failed spec(s)
[08:01:26] E/launcher - Process exited with error code 1
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! protractor-example@1.0.0 e2e: `protractor protractor.conf.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the protractor-example@1.0.0 e2e script.
npm ERR! This is probably not a problem with npm. There is likely additional 
logging output above.

这是我的"spec.ts“

import {LoginPage} from '../page-objects/pages/login/login.po';
import {LoginPageHelper} from '../page-objects/pages/login/login-page.helper';
import {browser, By, element, ExpectedConditions} from 'protractor';
import {beforeEach, describe, it} from 'selenium-webdriver/testing';

describe('Mail suite', () => {
let loginPageHelper: LoginPageHelper;

beforeEach(() => {
    loginPageHelper = new LoginPageHelper();
});

it('Send email', async () => {
    const user1 = browser.params.user1;
    await loginPageHelper.goToPage();
    await LoginPage.username.sendKeys(user1.username);
    await element(By.id('identifierNext')).click();
    await browser.wait(ExpectedConditions.visibilityOf(LoginPage.password));
    await LoginPage.password.sendKeys(user1.password);
});
});

请帮我调试这个错误。提前感谢

Answer 1

啊，我终于想出来了。是我的"spec.js“中的这一行造成了上述错误

import {beforeEach, describe, it} from 'selenium-webdriver/testing';

我一使用beforeEach，网络风暴就发出了警告。当我试图使用自动建议的网络风暴，它要求做"Alt+Enter“。它会自动导入这一行。

移除这条线解决了问题。

Answer 2

定义为

protractor.conf.js

函数this.runnable？也许你想给它下定义

var runnable

而不是

this.runnable