TestNG Automation Framework Questions

We will look at some TestNG Automation Framework questions on this page.

What is TestNG framework ?

TestNG is inspired by JUnit and NUnit frameworks. It is an open source framework for functional test automation. It provides an API for adding custom implementations as well. Also, TestNG has better reporting structure and it provides XML and HTML default reports.TestNG is primarily used for functional testing unlike JUnit which is mostly used for unit testing. In addition, we can drive testng different configuration runs using the xml file. Furthermore, TestNG methods are specified with @Test annotation in the code.

What are different TestNG framework features?

Main TestNG features are:
Different annotations.
XML test suite files.
Parameters.
Grouping of test methods.
Dependencies.
Parallel testing.
Data-driven testing using – @DataProvider, @Factory

Open  TestNG API .
TestNG provides easy extension of API, this helps in adding custom extensions or plugins to the framework depending upon the requirement.

 

What is method dependency in TestNG?

Sample snippet below that depicts method dependency in TestNG framework.

@Test() 
 public void method1(){ 
 System.out.println("method1"); 
 } 
  
   
 @Test(dependsOnMethods={"method1"}) 
 public void dependent(){ 
 System.out.println("This method depends on method1, this method will  skip if method1 fails"); 
 }

 

What is @Factory annotation in TestNG?

@Factory in TestNG framework creates tests dynamically at run-time. A factory method is defined by declaring @Factory above the respective test method. It is mandatory that a factory method should return an array of Object  i.e Object[]
TestNG factory is used to create instances of test classes. This is useful if you want to run the test class any no of times.

Example code snippet:

public class SampleFactory
 {
  @Factory
  public Object[] factoryMethod()
 {
  Object[] object = new Object[5];
  for (int i = 0; i < 5 ; i++)
     {
     object[i] = new SampleTest();
       }
  return object;
  }
 }