How to run multiple test cases using TestNG Test Suite in Selenium?

In Selenium automation testing, efficiently managing and executing multiple test cases is crucial. TestNG, a powerful Java checking-out framework, offers an excellent answer to this. Using TestNG, you can group tests, create test units, and keep them organized. This article guides you through the steps to execute various tests using the TestNG test suite in Selenium.

Setting Up the Environment

Earlier than diving into developing and running test cases, make certain you have the following prerequisites:

1. Java development package (JDK)
2. Add development environment (IDE), which consists of Eclipse or IntelliJ idea
3. Selenium WebDriver
4. TestNG Library

Step 1: Creating Test Classes

First, create your test classes with methods annotated with '@Test'. Each test method represents a single take-a-look-at case.

FirstTest.java

import org.testng.annotations.Test;

public class FirstTest {
    @Test
    public void firstTestCase() {
        System.out.println("First Test Case");
    }
}

Output:

SecondTest.java

import org.testng.annotations.Test;

public class SecondTest {
    @Test
    public void secondTestCase() {
        System.out.println("Second Test Case");
    }
}

Output:

Step 2: creating the TestNG XML Suite report

The TestNG XML suite document is wherein you outline the structure of your check suite, which include the test training to be achieved.

testng-suite.xml:

<!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd" >
<suite name="MyTestSuite">
    <test name="FirstTest">
        <classes>
            <class name="FirstTest" />
        </classes>
    </test>
    <test name="SecondTest">
        <classes>
            <class name="SecondTest" />
        </classes>
    </test>
</suite>

Output:

Step 3: Adding TestNG Library to Your Project

Make sure the TestNG library is brought on your undertaking. In intellij or Eclipse, you can do this by right-clicking your project, going to Build Path > Add Libraries > TestNG.

Step 4: Run the Test Suite

You can run the TestNG test suite from the IDE or the command line.

Running from IDE:

• Right-click on the 'testng-suite.xml' file.
• Select Run As > TestNG Suite.

Running from Command Line:

Navigate to your undertaking listing and execute the subsequent command:

sh
java -cp "path/to/testng.jar:path/to/your/project" org.testng.TestNG testng-suite.xml

Step 5: Reviewing the effects

After execution, TestNG generates a file detailing the fulfillment or failure of each take a look at case. The record can be observed inside the 'check-output' folder inside your mission listing.

Advanced Configurations

Grouping Tests:

you may organization check techniques using the agencies attribute and configure the suite record to run particular companies.

@Test(groups = "group1")
public void firstTestCase() {
        System.out.println("First Test Case");
}

Output:

Parallel Execution:

TestNG supports running execution of tests to reduce execution time.

<suite name="MyTestSuite" parallel="tests" thread-count="2">
    <!-- Test definitions here -->
</suite>

Output:

Conclusion

Through following those steps, you could correctly control and run more than one check instances the usage of a TestNG check Suite in Selenium. This not simplest streamlines the trying out process but additionally complements the maintainability and scalability of your take a look at automation framework. TestNG's robust capabilities like grouping, parallel execution, and particular reporting make it an vital device for any Selenium tester.