Using Test-ng priority when using data providers

Question

I'm using a data provider with test-ng and I want the particular test to follow a series of steps for each of the elements within the data collection object.

The test:

For each element in the object, validate the form can input the values

The process therefore has the following:

1. Open a web page (from the data)
2. Check if element exists on the page
3. Input the values

I have tried to use the following below, however, for each of the elements in the object it runs step 1 and then moves onto step 2 after, rather than following the process. I'm therefore asking whether or not it's possible to do a 'test step' approach using test-ng?

If there are 2 values in the Data it will execute Open twice and then move on to CheckElementExists

@Test (priority = 1, dataProvider = "Data")
public void Open(Data data) throws InterruptedException
{ 
    System.out.println("Step 1");
    this.module.open(data);
}

@Test (priority = 2, dataProvider = "Data")
public void CheckElementExists(Data data)
{
   System.out.println("TWO");
}

Answer 1

In this case, you can use Factory class.

public class TestCase {
    Data data;

    @Factory(dataProvider = "Data")
    public TestCase(Data data){
        this.data=data;
    }

    @Test(priority = 1)
    public void Open() throws InterruptedException {
        System.out.println("Step 1");
        this.module.open(data);
    }

    @Test(priority = 2)
    public void CheckElementExists(Data data) {
        System.out.println("TWO");
    }
}

You need to mention group-by-instance = true in your testng suite xml file and run using the xml suite

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite name="Test Suite New"  group-by-instances="true" configfailurepolicy="continue" preserve-order="true">
   <test name="Test Case">
      <classes>

         <class name="com.package.TestCase"></class>

      </classes>
   </test>
</suite>