量角器+黄瓜 - 如果断言失败，测试执行突然停止

Question

• 黄瓜测试方案

@login 
 
Scenario: Test signin link 
 
Given the user goes to "example.com" 
 
When the user clicks on login button 
 
Then the current page is the login page

嗨，每当柴/“柴作为承诺”断言失败我测试停止执行突然，而不是使相应的黄瓜步骤失败。如果方案有5个黄瓜DSL一步，如果断言在第2步测试执行失败，我希望测试结果应该是

• 1方案（1失败）
• 5个步骤（1失败，3跳过1后）

，但我得到的测试结果如下图所示，错误代码199

• 步骤定义

  this.When(/^the user clicks on login button$/, function() { 
   
       browser.ignoreSynchronization = false; 
   
       return browser.wait(wagHomePage.elements.signIn.isDisplayed().then(function(visible) { 
   
        if (visible) { 
   
         wagHomePage.elements.signIn.click().then(function() { 
   
          expect(visible).to.be.true; 
   
         }); 
   
        } 
   
        else { 
   
         chai.assert.isTrue(false); 
   
        } 
   
       })); 
   
      }); 
   
  
   
      this.Then(/^the current page is the login page$/, function() {   
   
       expect(wagLoginPage.elements.pageIdentifier.isDisplayed()).to.eventually.be.true; 
   
      });

@login 
 
    Scenario: Test signin link 
 
    √ Given the user goes to "example.com" 
 
[19:58:02] E/launcher - expected false to be true 
 
[19:58:02] E/launcher - AssertionError: expected false to be true 
 
    at doAsserterAsyncAndAddThen (C:\JS_UIAutomation\node 
 
_modules\chai-as-promised\lib\chai-as-promised.js:293:29) 
 
    at .<anonymous> (C:\JS_UIAutomation\node_modules\chai 
 
-as-promised\lib\chai-as-promised.js:283:21) 
 
    at get (C:\JS_UIAutomation\node_modules\chai\lib\chai 
 
\utils\overwriteProperty.js:50:37) 
 
    at Function.assert.isTrue (C:\JS_UIAutomation\node_mo 
 
dules\chai\lib\chai\interface\assert.js:332:31) 
 
    at C:\JS_UIAutomation\example_site_tests\step_defin 
 
itions\wagLogin_definition.js:23:29 
 
    at elementArrayFinder_.then (C:\Users\username\AppData\Roaming\npm\node_modules\protractor\lib\element.ts:840: 
 
22) 
 
    at ManagedPromise.invokeCallback_ (C:\Users\username\AppData\Roaming\npm\node_modules\protractor\node_modules\ 
 
selenium-webdriver\lib\promise.js:1366:14) 
 
    at TaskQueue.execute_ (C:\Users\username\AppData\Roaming\npm\node_modules\protractor\node_modules\selenium-web 
 
driver\lib\promise.js:2970:14) 
 
    at TaskQueue.executeNext_ (C:\Users\username\AppData\Roaming\npm\node_modules\protractor\node_modules\selenium 
 
-webdriver\lib\promise.js:2953:27) 
 
    at asyncRun (C:\Users\username\AppData\Roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\lib 
 
\promise.js:2813:27) 
 
[19:58:02] E/launcher - Process exited with error code 199

请帮我得到正确的测试结果类似

• 1方案（1失败）
• 5个步骤（1失败，3跳过，1通过）

Answer 1

我想我看到了问题，看起来您没有正确实施browser.wait()。根据该文件，应该由出来的：

1. 条件：条件上等待，定义为一个承诺，条件对象，或作为评估条件的功能。
2. opt_timeout：等待条件成立的时间需要多长时间。

你的代码是这样

return browser.wait(wagHomePage.elements.signIn.isDisplayed().then(function(visible) { 
    if (visible) { 
     wagHomePage.elements.signIn.click().then(function() { 
      expect(visible).to.be.true; 
     }); 
    } 
    else { 
     chai.assert.isTrue(false); 
    } 
})); 

它应该更像这个

// Wait 3 seconds for the element to appear and click on it 
// If not the wait wail fail by rejecting the promise with the custom message 
return browser.wait(function(){ 
    return wagHomePage.elements.signIn.isDisplayed() 
    .then(function(visible){ 
     if (visible) { 
      // click on the element 
      wagHomePage.elements.signIn.click(); 
      return true; 
     } 
     // Not visible yet, but it is in the DOM, then try again 
     return false; 
    }).catch(function(notFound){ 
     // Element not found in the DOM, try again 
     return false; 
    }); 
}, 3000, 'Element not found within 3 seconds'); 

记住isPresent()检查该元素存在于DOM，isDisplayed()检查元素存在于DOM中并且可见。如果您在isDisplayed()上进行检查，则需要执行catch();

希望这会有所帮助。