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, the 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, InvocationCount_Demo.
Step 2 − Write two @Test methods in the class InvocationCount_Demo as shown in the programming code section below. Add invocationCount=3 to method verifyTitle 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 org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.firefox.FirefoxOptions;
import org.testng.Assert;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import java.time.Duration;
public class InvocationCount_Demo {
WebDriver driver;
@BeforeMethod
public void setup() throws Exception {
FirefoxOptions options = new FirefoxOptions();
driver = new FirefoxDriver(options);
driver.get("https://opensource-demo.orangehrmlive.com/");
driver.manage().timeouts().implicitlyWait(Duration.ofSeconds(10));
driver.manage().window().maximize();
}
@Test(invocationCount = 3)
public void verifyTitle() {
System.out.println("Test Case 1 with Thread Id - " + Thread.currentThread().getId());
String expectedTitle = driver.findElement(By.xpath("//*[@class='oxd-text oxd-text--h5 orangehrm-login-title']")).getText();
Assert.assertEquals(expectedTitle,"Login");
}
@Test(invocationCount = 2)
public void validLoginTest() throws InterruptedException {
System.out.println("Test Case 2 with Thread Id - "+Thread.currentThread().getId());
driver.findElement(By.name("username")).sendKeys("Admin");
driver.findElement(By.name("password")).sendKeys("admin123");
driver.findElement(By.xpath("//*[@class='oxd-form-actions orangehrm-login-action']/button")).click();
String expectedTitle = driver.findElement(By.xpath("//*[@class='oxd-topbar-header-breadcrumb']/h6")).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.InvocationCount_Demo"/>
</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!!
QA Automation Expert 