Question

我遇到了与here所述相同的问题我需要等待网站加载，当旋转器消失然后我需要进行测试时，我知道它已经完成了。但是这么简单的测试：

beforeAll(function(){
    Core.login(env.currentUser).then(function(){
        var foo = browser.wait(function(){
            return !browser.isElementPresent(by.css('.modal .env-waiting-content'));
        }, 50000);
        console.log("page loaded");
        mainPage.navBar.buttons.logIncident.click();
    });
});


it('should work', function(){
    expect(1).toBe(1);
});

因错误而失败：

Message:
    Failed: ENOTFOUND getaddrinfo ENOTFOUND
  Stack:
    Error: Failed: ENOTFOUND getaddrinfo ENOTFOUND
        at /home/set/.nvm/v0.10.28/lib/node_modules/protractor/node_modules/jasminewd2/index.js:104:16
        at /home/set/.nvm/v0.10.28/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/base.js:1582:15
        at [object Object].webdriver.promise.ControlFlow.runInNewFrame_ (/home/set/.nvm/v0.10.28/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/webdriver/promise.js:1654:20)
        at notify (/home/set/.nvm/v0.10.28/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/webdriver/promise.js:465:12)
        at notifyAll (/home/set/.nvm/v0.10.28/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/webdriver/promise.js:442:7)
        at resolve (/home/set/.nvm/v0.10.28/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/webdriver/promise.js:420:7)
        at reject (/home/set/.nvm/v0.10.28/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/webdriver/promise.js:545:5)
        at /home/set/.nvm/v0.10.28/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/goog/base.js:1582:15
        at [object Object].webdriver.promise.ControlFlow.runInNewFrame_ (/home/set/.nvm/v0.10.28/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/webdriver/promise.js:1654:20)
        at notify (/home/set/.nvm/v0.10.28/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/webdriver/promise.js:465:12)
        at notifyAll (/home/set/.nvm/v0.10.28/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/webdriver/promise.js:442:7)
        at resolve (/home/set/.nvm/v0.10.28/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/webdriver/promise.js:420:7)
        at [object Object].reject (/home/set/.nvm/v0.10.28/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/webdriver/promise.js:545:5)
        at /home/set/.nvm/v0.10.28/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/webdriver/promise.js:1529:10
        at newFrame.onAbort (/home/set/.nvm/v0.10.28/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/webdriver/promise.js:1679:7)
        at [object Object].webdriver.promise.Frame_.notify_ (/home/set/.nvm/v0.10.28/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/webdriver/promise.js:1914:5)
        at [object Object]._onTimeout (/home/set/.nvm/v0.10.28/lib/node_modules/protractor/node_modules/selenium-webdriver/lib/webdriver/promise.js:1887:13)
        at Timer.listOnTimeout [as ontimeout] (timers.js:110:15)

如何避免此错误及其发生的原因？
为什么console.log("page loaded");输出消息比spinner更早消失，在when之后执行某些代码的方式是什么，某种then？
browser.wait和browser.driver.wait之间有什么区别？

Answer 1

您的错误看起来像是一个基本的网络问题。您是否能够获得Protractor随附的示例测试？

第二个问题（为什么console.log如此早发生）是因为Protractor命令不做事情，他们排队以后要完成的事情（承诺底层webdriver＆＃34;控制流＆＃34;执行）。阅读此https://github.com/angular/protractor/blob/master/docs/control-flow.md和https://code.google.com/p/selenium/wiki/WebDriverJs#Understanding_the_API。因此，当步骤排队而不执行时，console.log最终会运行。

一般来说，在量角器中，＆＃34;顶级＆＃34;像browser和protractor以及by这样的API都是＆＃34; Angular-aware＆＃34;。 browser.driver API是底层的Selenium webdriver API（它不知道Angular）。在wait的特定情况下，我并不认为存在很大差异（但我对此并不是100％有信心）。

旋转器后测试

1 个答案: