InvocationCount in TestNG

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InnvocationCount is one of the feature available in TestNG. InvocationCount is used when we want to run the same test multiple times.  If we want to run single @Test 10 times at a single thread, then invocationCount can be used. To invoke a method multiple times, below syntax is used.

@Test(invocationCount = 3)

In this example, the @Test method will execute for 3 times each on a single thread.

In this tutorial, we will illustrate how to get the current invocation count.

Step 1 − Create a TestNG class, TestInvocationCount.

Step 2 − Write two @Test methods in the class TestInvocationCountas shown in the programming code section below. Add invocationCount=3 to method verifyLinkedIn and 2 to validLoginTest.

Step 3 − Create the testNG.xml as given below to run the TestNG classes.

Step 4 − Now, run the testNG.xml or directly testNG class in IDE or compile and run it using command line.

Step 5 − In the output, the user can see a total of 1 thread running sequentially for all invocations of @Test.

import static org.testng.Assert.assertTrue;
import java.util.concurrent.TimeUnit;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.testng.Assert;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import io.github.bonigarcia.wdm.WebDriverManager;

public class TestInvocationCount {
	
	WebDriver driver;
	
	@BeforeMethod
    public void setup() throws Exception {
        
       driver = WebDriverManager.firefoxdriver().create();

       driver.get("https://opensource-demo.orangehrmlive.com/");
       driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
       driver.manage().window().maximize();
    }
	
	@Test(invocationCount = 3)
    public void verifyLinkedIn() {

		System.out.println("Test Case 1 with Thread Id - "+Thread.currentThread().getId());
    	
        driver.manage().window().maximize();
        Boolean linkedInIcon = driver.findElement(By.xpath("//*[@id='social-icons']/a[1]/img")).isEnabled();
        assertTrue(linkedInIcon);
    }

    
    @Test(invocationCount = 2)
    public void validLoginTest() throws InterruptedException {
    	
    	System.out.println("Test Case 2 with Thread Id - "+Thread.currentThread().getId());

        driver.findElement(By.name("txtUsername")).sendKeys("Admin");
        driver.findElement(By.name("txtPassword")).sendKeys("admin123");
        driver.findElement(By.id("btnLogin")).click();
        String expectedTitle = driver.findElement(By.xpath("//*[@id='content']/div/div[1]/h1")).getText();
        Assert.assertTrue(expectedTitle.contains("Dashboard"));
    }

	    @AfterMethod
	    public  void closeBrowser() {
	    	
	    	driver.quit();
	    			  
	    }
}

testng.xml

This is a configuration file that is used to organize and run the TestNG test cases. It is very handy when limited tests are needed to execute rather than the full suite.

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd">
<suite name="Suite">
  <test name="Invocation Test">
    <classes>
      <class name="com.example.listeners.TestInvocationCount"/>
    </classes>
  </test> <!-- Test -->
</suite> <!-- Suite -->

The output of the above program is

We can add threadPoolSize to the @Test.

threadPoolSize – It defines the size of the thread pool for any method. The method will be invoked from multiple threads as specified by invocationCount.

@Test(invocationCount = 3, threadPoolSize)

Congratulations on making it through this tutorial and hope you found it useful! Happy Learning!! Cheers!!

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