JSR223 采样器的 WDS.sampleResult.sampleStart()

Question

我正在使用 JSR223 采样器，我想在 url 加载后开始计算时间，所以我的代码如下：

**

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.firefox.FirefoxOptions;
import org.openqa.selenium.By;
import org.openqa.selenium.support.ui.ExpectedConditions;
import org.openqa.selenium.support.ui.WebDriverWait;
System.setProperty("webdriver.gecko.driver","/Users/geckodriver");
FirefoxOptions options = new FirefoxOptions().setAcceptInsecureCerts(true);
options.addArguments("--headless");
WebDriver driver = new FirefoxDriver(options);
def wait = new WebDriverWait(driver, 20);
driver.get('https://google.com/');
WDS.sampleResult.sampleStart();
wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath(".//input[@name='q']")));
WDS.sampleResult.sampleEnd();

**

Answer 1

JSR223 Sampler 会根据您的脚本内容自动计算其持续时间，因此如果您想测量查找输入所需的时间，您必须选择：

1. 创建另一个 JSR223 Sampler，它将打开所需的页面并将 WebDriver 实例存储到 JMeterVariables 中，例如：

   • 第一个 JSR223 采样器：

     import org.openqa.selenium.WebDriver;
     import org.openqa.selenium.firefox.FirefoxDriver;
     import org.openqa.selenium.firefox.FirefoxOptions;
     import org.openqa.selenium.support.ui.WebDriverWait;
     System.setProperty("webdriver.gecko.driver","/Users/geckodriver");
     FirefoxOptions options = new FirefoxOptions().setAcceptInsecureCerts(true);
     options.addArguments("--headless");
     WebDriver driver = new FirefoxDriver(options);
     def wait = new WebDriverWait(driver, 20);
     driver.get('https://google.com/');
     
     vars.putObject('driver', driver)
     vars.putObject('wait', wait)
     

   • 第二个 JSR223 采样器：

      import org.openqa.selenium.By;
      import org.openqa.selenium.support.ui.ExpectedConditions;
     
      def driver = vars.getObject('driver')
      def wait = vars.getObject('wait')
      wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath(".//input[@name='q']")));
     

2. 使用SampleResult.addSubResult() 函数创建一个“子”样本结果，该结果将测量定位元素所需的时间：

   import org.openqa.selenium.WebDriver;
   import org.openqa.selenium.firefox.FirefoxDriver;
   import org.openqa.selenium.firefox.FirefoxOptions;
   import org.openqa.selenium.By;
   import org.openqa.selenium.support.ui.ExpectedConditions;
   import org.openqa.selenium.support.ui.WebDriverWait;
   System.setProperty("webdriver.gecko.driver","/Users/geckodriver");
   FirefoxOptions options = new FirefoxOptions().setAcceptInsecureCerts(true);
   options.addArguments("--headless");
   WebDriver driver = new FirefoxDriver(options);
   def wait = new WebDriverWait(driver, 20);
   driver.get('https://google.com/');
   
   def myResult = new org.apache.jmeter.samplers.SampleResult()
   myResult.setSampleLabel('Locating element')
   myResult.sampleStart()
   wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath(".//input[@name='q']")));
   myResult.setResponseCodeOK()
   myResult.setSuccessful(true)
   myResult.sampleEnd()
   
   SampleResult.addSubResult(myResult,false)
   

   在这种情况下，你会得到类似的东西：

查看Top 8 JMeter Java Classes You Should Be Using with Groovy 了解更多关于这些vars 和SampleResult 速记的信息