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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 ===============================================
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