URL 更改后使用 browser.getCurrentUrl() 时出现超时错误

Question

我正在为 AngularJS 应用程序编写用于登录的量角器测试，想验证登录是否成功以及登录后 url 是否发生变化。我尝试将预期条件与 urlContains() 一起使用，也尝试与 browser.getCurrentUrl().toContain() 一起使用，但我在两者中都遇到了错误。

exports.config = {

    seleniumAddress : 'http://localhost:4444/wd/hub', 
    specs: ['login.spec.js'],

    };

当 url 正确时，预期条件通过测试。但是当 url 不同时，它会抛出超时错误 "Failed: Wait timed out after 5013ms"。 expect(browser.getCurrentUrl()).toContain('/dashboard') 总是失败并出现以下错误

Stack:
    ScriptTimeoutError: script timeout: result was not received in 11 seconds
      (Session info: chrome=75.0.3770.142)
    Build info: version: '3.141.59', revision: 'e82be7d358', time: '2018-11-14T08:25:53'
    System info: os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.14.3', java.version: '12.0.1'
    Driver info: driver.version: unknown
        at Object.checkLegacyResponse (/Users/.nvm/versions/node/v8.9.4/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/error.js:546:15)
        at parseHttpResponse (/Users/.nvm/versions/node/v8.9.4/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/http.js:509:13)
        at doSend.then.response (/Users/.nvm/versions/node/v8.9.4/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/http.js:441:30)
        at <anonymous>
        at process._tickCallback (internal/process/next_tick.js:188:7)
    From: Task: Protractor.waitForAngular()
        at thenableWebDriverProxy.schedule (/Users/.nvm/versions/node/v8.9.4/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/webdriver.js:807:17)
        at ProtractorBrowser.executeAsyncScript_ (/Users/.nvm/versions/node/v8.9.4/lib/node_modules/protractor/built/browser.js:425:28)
        at angularAppRoot.then (/Users/.nvm/versions/node/v8.9.4/lib/node_modules/protractor/built/browser.js:456:33)
        at ManagedPromise.invokeCallback_ (/Users/.nvm/versions/node/v8.9.4/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/promise.js:1376:14)
        at TaskQueue.execute_ (/Users/.nvm/versions/node/v8.9.4/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/promise.js:3084:14)
        at TaskQueue.executeNext_ (/Users/.nvm/versions/node/v8.9.4/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/promise.js:3067:27)
        at asyncRun (/Users/.nvm/versions/node/v8.9.4/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/promise.js:2927:27)
        at /Users/.nvm/versions/node/v8.9.4/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/promise.js:668:7
        at <anonymous>
        at process._tickCallback (internal/process/next_tick.js:188:7)
    From: Task: Run it("should login successfully") in control flow
        at UserContext.<anonymous> (/Users/.nvm/versions/node/v8.9.4/lib/node_modules/protractor/node_modules/jasminewd2/index.js:94:19)
    From asynchronous test: 
    Error
        at Object.<anonymous> (/Users/ProtractorTest/Tests/login.spec.js:17:3)
        at Module._compile (module.js:643:30)
        at Object.Module._extensions..js (module.js:654:10)
        at Module.load (module.js:556:32)
        at tryModuleLoad (module.js:499:12)
        at Function.Module._load (module.js:491:3)
        at Module.require (module.js:587:17)
        at require (internal/module.js:11:18)
        at /Users/.nvm/versions/node/v8.9.4/lib/node_modules/protractor/node_modules/jasmine/lib/jasmine.js:93:5

下面是我的代码

it('should login successfully', function () {
  browser.get("https://example.com/");
  loginobj.username.sendKeys(logindata.email);
  loginobj.password.sendKeys(logindata.password);
  loginobj.loginbtn.click().then(function(){
  browser.getCurrentUrl().then(url => expect(url).toContain('/dashboard'));
  //var EC = protractor.ExpectedConditions;
  //browser.wait(EC.urlContains('/dashboard'), 5000);  
})

我希望当 url 与预期的不同时，它应该显示有效的错误消息而不是超时错误。

Answer 1

我有类似的东西

const currentUrl = await browser.getCurrentUrl().then(url => url);
expect(currentUrl).toContain('/dashboard')

尝试一下也许会有帮助，只是没有 await 因为我看到你不使用异步函数

或者像这样

await browser.getCurrentUrl().then(url => expect(url).toContain('/dashboard'));

Answer 2

量角器默认脚本超时为 11 秒，在上面的代码片段中，

browser.getCurrentUrl().then(url => expect(url).toContain('/dashboard'));

声明需要超过 11 秒来解决承诺。

解决方法: 在 Protractor 配置文件中，添加如下语句 allScriptsTimeout: timeout_in_millis。例如 30 秒超时

allScriptsTimeout: 30000

已编辑配置文件：

exports.config = {
allScriptsTimeout: 30000,
seleniumAddress : 'http://localhost:4444/wd/hub', 
specs: ['login.spec.js'],

};

Answer 3

默认情况下，量角器会为您处理所有异步操作。查看您的代码，您依赖于默认的量角器行为，即不将 SELENIUM_PROMISE_MANAGER 设置为 false.

既然如此，为什么还要在click().then()里面做点什么？可以简单明了

loginobj.loginbtn.click(); expect(browser.getCurrentUrl()).toContain('/dashboard');

关于您的代码的一个理论：一旦您在 click().then() 中有一些东西，它就与 Protractor 正在为您处理的 promise 队列格格不入。除非绝对必要，否则为了 ex 从元素中获取值供以后在规范中使用，我建议尽可能不要干预量角器异步处理。

希望对您有所帮助。

URL 更改后使用 browser.getCurrentUrl() 时出现超时错误

Time out error when using browser.getCurrentUrl() after URL changes

assertion

protractor