TestNG Interview Questions and Answers

TestNG Interview Questions and Answers

TestNG is a testing framework for the Java programming language created by Cédric Beust and inspired by JUnit and NUnit. The design goal of TestNG is to cover a wider range of test categories: unit, functional, end-to-end, integration, etc., with more powerful and easy-to-use functionalities. It is an open source automated testing framework; where NG of TestNG means Next Generation. TestNG is similar to JUnit but it is much more powerful than JUnit but still it’s inspired by JUnit. It is designed to be better than JUnit, especially when testing integrated classes. .
TestNG is a testing framework designed to simplify a broad range of testing needs, from unit testing (testing a class in isolation of the others) to integration testing (testing entire systems made of several classes, several packages and even several external frameworks, such as application servers).
Writing a test is typically a three-step process:
Write the business logic of your test and insert TestNG annotations in your code.
Add the information about your test (e.g. the class name, the groups you wish to run, etc…) in a testng.xml file or in build.xml.
Run TestNG.

What Is TestNG?

What are the annotations available in TestNG?

Benefits of using Annotations

What are the advantages of TestNG?

What is Parameterization in TestNG?

What is Dataproviders in TestNG?

What is testing.xml file?

What is the importance of testng.xml file?

How can you run the JUnit tests using TestNG?

What is the same process both TestNG and JUniT?

What is suite test?

What is group in TestNG?
What is Listeners in TestNG?

What are the different types of Listeners in TestNG?

What is Assertion?

What is execution test?

What is exception test?

What is Timeout Test in TestNG?

What is the difference between JUnit and TestNG unit testing frameworks?

What is the Parallel Execution of Classes in TestNG?

How to run multiple testng.xml file in TestNG?

Mention different ways in which you can produce reports for TestNG results?

How to execute only failed test cases in Selenium?

How to get testng-failed.xml?
What does @Test (invocation Count=?) and (threadPoolSize=?) indicates?

What is the time unit we specify in test suites and test cases?

How TestNG allows to state dependencies?

How to skip a @Test method from execution in TestNG?

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