How we can name the test case dynamically when using data provider

Question

How we can name the test case dynamically when using data provider, for example:

If I have a login test case, and I want use data provider for different user name and password, where each user represent a country, how I will have the output of test failed or pass but with different test case name for instance I should have like this:

loginTestUSusername pass
loginTestINusername pass
loginTestJPuserName pass

Note that the name of the method is loginTest, and the appended USusername,INusername,JPusername are the test data from the data provider

Answer 1

Follow the steps below:

Step# 1:

Create a custom annotation in a separate file (ie: SetTestName.java)

@Retention(RetentionPolicy.RUNTIME)
public @interface SetTestName {
    int idx() default 0;
}

Step# 2:

Create a base class implementing ITest interface of TestNG (TestNameSetter.java).

public class TestNameSetter implements ITest{
    private String newTestName = "";

    private void setTestName(String newTestName){
        this.newTestName = newTestName;
    }

    public String getTestName() {

        return newTestName;
    }


    @BeforeMethod(alwaysRun=true)
    public void getTheNameFromParemeters(Method method, Object [] parameters){
        SetTestName setTestName = method.getAnnotation(SetTestName.class);
        String testCaseName = (String) parameters[setTestName.idx()];
        setTestName(testCaseName);
    }
}

Step# 3:

Use your DataProvider like in the code snippet:

@DataProvider(name="userData")
 public Object[][] sampleDataProvider()
 {
  Object[][] data = {
    {"loginTestUS_Username","loginTestUSPass"}, 
    {"loginTestIN_Username","loginTestINPass"},
    {"loginTestJP_UserName","loginTestJPPass"}
  };

  return data;
 }



 @SetTestName(idx=0)
 @Test(dataProvider="userData")
 public void test1(String userName, String pass)
 {
     System.out.println("Testcase 1");
 }

 @SetTestName(idx=1)
 @Test(dataProvider="userData")
 public void test2(String userName, String pass)
 {
     System.out.println("Testcase 2");
 } 

That's all. Now, you will see your test name changed accordingly in the console.

Follow the link below for your query. I hope, you might get your desired answer here:

http://biggerwrench.blogspot.com/2014/02/testng-dynamically-naming-tests-from.html