TestNG @Test attributes – run by priority (-ve & +ve)

As we know testNG test methods are executed in alphabetical order by default, but testNG provides priority keyword to prioritize test case execution order and the value starts from -n to n…

Priority value starts from any number from -ve to +ve, 0 is default (if nothing is set)

For a method less priority number, executes first

Order of execution –

 tc3 – tc2 – tc1 – tc5 – tc4

Let’s see the code implementation:

import org.testng.annotations.Test;

public class testNGPr {
    @Test(priority=-12)
    public void test1()
    {
        System.out.println("test1: priority -12");
    }

    @Test(priority=-2)
    public void test2()
    {
        System.out.println("test2: priority -2");
    }

    @Test(priority=3)
    public void test3()
    {
        System.out.println("test3: priority 3");
    }

    @Test(priority=2)
    public void test4()
    {
        System.out.println("test4: priority 2");
    }

    @Test(priority=0)
    public void test5()
    {
        System.out.println("test5: priority 0");
    }

    @Test
    public void test6()
    {
        System.out.println("test6: test231 no priority");
    }

    @Test
    public void test7()
    {
        System.out.println("test7: test2311 no priority");
    }
}

OutPut –

test1: priority -12
test2: priority -2
test5: priority 0
test6: test231 no priority
test7: test2311 no priority
test4: priority 2
test3: priority 3

As you can see above result, the execution order is as follows –

negative priority – with ‘-1’ being lowest priority (-1 executes last in all -ve priority list)

priority with 0 or no priority set (executes in alphanumerical order for priority 0 or no priority)

positive priority – with 1 being highest proirity (1 executes first in all +ve priority list)