TestNG BeforeTest and AfterTest

The @beforeTest and @afterTest annotations execute pre-test and post-test operations at the suite level.

beforeTest

• @BeforeTest annotation is used to perform pre-test setup operations that need to be executed before the start of the test. 
• It is executed once before all the test methods in the suite. 
• The @BeforeTest annotation sets up the environment for the test cases to run. 
• For example, you can use this annotation to create objects, initialize data, or start a server.

@BeforeTest
public void setUp() {
  // code to set up the environment for the test cases to run
}

afterTest

• @AfterTest annotation is used to perform post-test cleanup operations that need to be executed after completing all the test methods in the suite. 
• It is executed once after all the test methods in the suite. The @AfterTest annotation cleans up the environment after completing the test cases. 
• For example, you can use this annotation to close the database connections, delete temporary files, or shut down a server.

@AfterTest
public void tearDown() {
  // code to clean up the environment after the test cases have been executed
}

Example:

package week4.day2;

import java.util.List;

import org.openqa.selenium.By;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.testng.annotations.AfterTest;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;

import io.github.bonigarcia.wdm.WebDriverManager;

public class PopUp {
    ChromeDriver driver;

    @BeforeTest
    private void setUp() throws InterruptedException {
        WebDriverManager.chromedriver().setup();
        driver = new ChromeDriver();
        driver.get("https://www.programsbuzz.com/");
        driver.manage().window().maximize();
        Thread.sleep(3000);
    }

    @AfterTest
    private void tearDown() {
        driver.quit();
    }

    @Test(retryAnalyzer = Retry.class)
    public void popUp() throws Throwable {

        List<WebElement> elementTexts = driver.findElements(By.xpath("//div[@class='header__main__left']"));

        for (WebElement webElement : elementTexts) {

            System.out.println(webElement.getText());

        }

    }

}

• This test is a perfect example of the annotation used before and after the test.
• In the beforeTest, we used it as the block to set up the web driver and launch the URL.
• afterTest is used to close the browser.
• This is how we can effectively use the before and after test annotations in TestNG.