JSR223 采样器的 WDS.sampleResult.sampleStart()

Question

I am using JSR223 Sampler and I want to start calculating time after url load so my code as below :

**

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 automatically calculates its duration depending on your script contents so if you want to measure the time required to find an input you have to options:

1. Create another JSR223 Sampler which will open the required page and store the WebDriver instance into JMeterVariables like:

   • First JSR223 Sampler:

      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)

   • Second JSR223 Sampler:

      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. Use SampleResult.addSubResult() function to create a "child" sample result which will measure the time required to locate the element:

    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)

   in this case you will get something like:

   

Check out Top 8 JMeter Java Classes You Should Be Using with Groovy to learn more about these vars and SampleResult shorthands