What is the difference between junit and testng

TestNG achieves this with the help of:. One of the most effective ways to test is by performing parallel testing. Running tests simultaneously and not in sequence on cloud-based Selenium Grid supports more parallelism than performing it on local Selenium Grid. Reporting is a vital requirement in testing to analyze the test results.

JUnit does not create any such report for test execution but provides data in XML file format. You will have to use an additional external plugin with JUnit to create the reports. JUnit was introduced before TestNG, which is why it has a wider and stronger community support, comparatively. TestNG is catching up gradually, and its user base is also growing at a faster pace daily.

Automation testing is supported by many Test frameworks depending on what your testing goals are. So it became a dire need to discuss TestNG vs. JUnit in the unit testing context. Can't read the image? Learn More. Case Studies. Latest Blog. Latest Videos. Upcoming Webinar. See All Articles. Latest Whitepaper. TestNG vs. By Priyanka charak Posted on August 4, 10 min Read.

What is Unit Testing? Download Comparison Sheet Now! NA BeforeSuite It is executed after all tests in the suite have run. NA AfterSuite Executed before the test. NA BeforeTest Executed after the test. NA AfterTest Executed before the first test method of any of these groups. NA BeforeGroups Executed after the first test method of any of these groups. Priyanka Charak. Junit junit testing framework TestNg Testng testing framework testngvsjunit.

It help developers to decide which framework should be used for Unit Testing. Below table highlights the features supported by both:. Check the table below for more details-. Suites are used to execute multiple tests together. However, suites are more powerful in TestNG as it uses very different method for execution of tests.

TestNG uses xml to bundle all tests at one place. Below xml describes use of suite while working with TestNG:. It is used to check, which exception is thrown from the test? This feature is implemented both in TestNg and JUnit4. Timeout is used to terminate a test which takes longer than specified time in milliseconds.

Moreover, if you do not know about that feature, I will provide a link to visit a detailed guide for that. However, there is a slight difference between the name of some of the annotations, but their working remains the same. Subsequently, the following table analyses the TestNG vs JUnit in terms of annotations and would help you assess the annotation differences.

Additionally, you can learn more about it here, How to work with annotations in TestNG? Before JUnit 5, the test suite feature was not supported in JUnit, although it got introduced afterward. On the other hand, TestNG always equipped with test suites. Although both of them can run the tests using test suites, how they do so is slightly different. Consequently, below-given code snippets help analyze TestNG vs JUnit in terms of running a test suite. In the above code, we are trying to run two classes, namely JUnit1 and JUnit2, written under Suite annotation.

While working with TestNG, it is more convenient, and the tester gets more options to work with the test suites. For example, a tester can run the suites after bundling the classes into groups, etc. Additionally, you can learn more about it here, how to create and run test suites in TestNG.

The ignore test feature means whether the framework should ignore the test during execution or not. Subsequently, the following given code snippet will help you analyze TestNG vs JUnit in terms of ignoring a test. Additionally, you can learn more about it here, how to ignore a test in TestNG? The exception test verifies the exception that we should throw while executing that test.

Additionally, the following code snippet will help you analyze TestNG vs JUnit in terms of the exception test. The timeout test provides a time constraint in the execution of the test. If the tests exceed the time limit, the test fails automatically.

Note : The time mentioned as the attribute value is in milliseconds. Group test means performing the tasks on a group of tests altogether. It is a new feature and comes with TestNG only. With group tests, the tester can create multiple groups with each group containing multiple tests in them.

Additionally, the tester can then execute the test in a single group rather than various tests. Moreover, you can learn more about it here, how to create groups and execute group test. Reporting is an essential feature and refers to generating reports with different types of statistics in it.

Additionally, one can share these reports with other team members. There is no such option to generate a report in JUnit. Moreover, to generate reports in JUnit, you need to use an external plugin with the framework.

Additionally, you can learn more about it here, How to generate reports in TestNG? Parameterized tests mean running a test case by feeding different values at each execution. These tests are beneficial in data-driven testing and reduce the code length to a good extent. Both JUnit and TestNG contains the benefit of parameterized testing but in a slightly different manner.

But it depends on what you prefer. Moreover, the below-given code will help you analyze TestNG vs JUnit in terms of parameterized tests. JUnit is a combination of RunWith and Parameters to generate a 2-D list of objects which feed into the Test method for parameterized testing.