How to pass a variable from BeforeTest to Test annotation in TestNG?

A TestNG class can have various TestNG methods such as @BeforeTest,@AfterTest, @BeforeSuite, @BeforeClass, @BeforeMethod, @test, etc. Thereare various scenarios where we need to carry forward a few variables from thesemethods to the main @Test method. Since none of these methods support return type, the best way to pass a variable is using class /instance variable rather thanlocal variable.

The scope of class/instance variable is within the entire class. As a result, whatevervalue is set up at @BeforeTest or @BeforeMethod can be utilized at @Test method.

In this article, we will see how to pass a variable from @BeforeTest to @Test annotation in TestNG.

Approach/Algorithm to solve this problem

• Step 1 − Create a TestNG class NewTestngClass and declare a variable as employeeName.

• Step 2 − Write the following code inside @BeforeTest−

public void name() { employeeName = "Ashish"; System.out.println("employeeName is: "+employeeName); }

• Step 3 − Write a @Test method in the class NewTestngClass and use the variable employeeName as described in the code.

• Step 4 − Now create the testNG.xml as given below to run the TestNG classes.

• Step 5 − Finally, run the testNG.xml or directly testNG class in IDE or compile and run it using command line.

Example

The following code for common TestNG class, NewTestngClass −

src/ NewTestngClass.java

import org.testng.annotations.*; public class NewTestngClass { String employeeName; // test case 1 @Test() public void testCase1() throws InterruptedException { System.out.println("in test case 1 of NewTestngClass"); String employeeFullName = employeeName + " Anand"; System.out.println("employeeFullName is: "+employeeFullName); } @BeforeTest public void name() { employeeName = "Ashish"; System.out.println("employeeName is: "+employeeName); } }

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 "http://testng.org/testng-1.0.dtd" > <suite name = "Suite1"> <test name = "test1"> <classes> <class name = "NewTestngClass"/> </classes> </test> </suite>

Output

employeeName is: Ashish in test case 1 of NewTestngClass employeeFullName is: Ashish Anand =============================================== Suite1 Total tests run: 1, Passes: 1, Failures: 0, Skips: 0 ===============================================