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TestNG @BeforeGroups Annotation

TestNG allows the testers to create multiple test cases into a single group through the use of attribute 'group' in the @Test annotation. We can say that TestNG groups allow you to add similar functionalities in the same group. For example, student_id, student_name, student_address are the details of a student, and all these details are added in a same group, i.e., "student details".

@BeforeGroups: The @BeforeGroups annotated method will run only once before all the test methods belonging to a specified group have been executed.

Let's understand the @BeforeGroups annotation through an example.

Step 1: Open the Eclipse.

Step 2: We create a simple java project.

Class1.java

In the above, we have created the java project in which we have defined the @BeforeGroups annotated method, and in @BeforeGroups, we pass "IT Department" which means that @BeforeGroups annotated method, i.e., before_it() will be invoked before the execution of all the test methods belonging to an "IT Department" group.

Step 3: Now, we create a testng.xml file to configure the above class.

testng.xml file

Step 4: Run the testng.xml file. Right click on the testng.xml file, move the cursor down to Run As and then click on the 1 TestNG Suite.

TestNG @BeforeGroups Annotation
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