Can we run group of test cases using TestNG?

As an experienced tutor in automation testing registered on UrbanPro.com, I'm here to explain how you can run a group of test cases using TestNG. Grouping test cases is a powerful feature that enhances flexibility and allows selective execution based on specific criteria.

Running Group of Test Cases with TestNG

1. Understanding TestNG Groups

• Group Annotation:
  • TestNG allows you to group test methods using the @Test(groups = "groupName") annotation.
  • Each test method can belong to one or more groups.

2. Creating TestNG Groups

• Annotation Usage:

  • Annotate test methods with the @Test annotation and specify the group(s) they belong to.
    java

• • @Test(groups = "smoke") public void testMethod1() { // Test logic }

• Grouping in XML Configuration:

  • Alternatively, you can define groups in the TestNG XML configuration file.
    xml

• • <test name="MyTest"> <groups> <run> <include name="smoke"/> </run> </groups> <classes> <class name="com.example.TestClass"/> </classes> </test>

3. Running Specific Groups from TestNG XML

• Include Groups:

  • In the TestNG XML configuration, use the <include> tag to specify the groups you want to run.
    xml

• • <groups> <run> <include name="smoke"/> </run> </groups>

• Exclude Groups:

  • Similarly, you can use the <exclude> tag to exclude specific groups from execution.

4. Running Groups from Command Line

• Command Line Execution:
  • When executing tests from the command line, use the -groups parameter to specify the groups.
    bash

• • mvn test -Dgroups=smoke

5. Practical Example

• Sample Test Class:
  • java

• public class MyTests { @Test(groups = "smoke") public void testLogin() { // Login test logic } @Test(groups = "regression") public void testHomePage() { // Home page test logic } }

• TestNG XML Configuration:
  • xml