Understanding parallel=instances functionality

[garvita girotra]

Hi,

I am having understanding gap for parallel=instances functionality. Rest way of running tests in parallel is clear and i have implemented well.

As per documentation : parallel="instances": TestNG will run all the methods in the same instance in the same thread, but two methods on two different instances will be running in different threads.

I tried simple example below as per my understanding that just opens browser .

public class TestClass {
    WebDriver driver;

    @Test
    public  void method1() {
        System.out.println("method 1");
        driver = new ChromeDriver();
        driver.quit();
    }
}

public class ParallelExample {

    TestClass tc1, tc2;

    @Test
    public void display() {
        tc1 = new TestClass();
        tc1.method1();

        tc2 = new TestClass();
        tc2.method1();
    }
}



<suite name="Suite" configfailurepolicy="continue">
    <test name="test run " parallel="instances" thread-count="2">
        <classes>
            <class name="testngrun.ParallelExample"/>
        </classes>
    </test>
</suite>

I thought i am making 2 instances so they will run in parallel but they are running sequentially. Can someone explains and share some example how parallel=instances works.

Thanks !!

[Nisarg Dave]

When you use @Factory annotation to impose factory design pattern, this creates multiple instances of a test class based on conditions you give such as different test-data-set.

[garvita girotra]

I tried it with factory annotation and it worked. Thank you !!