How to Rerun Failed Tests in JUnit?


Sometimes due to some temporarily problems such as connection problems, server problems, browser issues, mobile application crashes and freezes and so on our tests fail. In these kinds of situations, we may want to rerun our tests automatically. But how? We can handle this with test frameworks such as TestNG and JUnit. In this post, I want to show you how to solve this problem with JUnit. Also, you can do the same operation with TestNG. It is a great test framework and actually more QA friendly. In another post, I will also explain how to do the same operation with TestNG using several ways. Especially, you can handle many situations with TestNG Listeners and this is another post topic.

In my Junit Rules post, I described how to write Custom Rules and I showed a sample custom ScreenShot Rule implementation.  In this post, we will create a similar custom Rule class which implements TestRule class.  We need to override evaluate() method and write retry logic in it.

Let’s do an example and see how it works?

We need two classes, one of them is our Rule Class ->> RetryRule and the other is our Test Class ->> RetryRuleTest.

In RetryRuleTest class, I will open www.swtestacademy.com and get its title and check it with WRONG expected title. Thus, our test will fail and I will expect that our test rerun according to given retry count argument. I set retry count as 3 in our example.

RetryRule Class:

RetryRuleTest Class:

Result:

junit rerun

javafx

Database Operations in JavaFX

By Onur Baskirt / Apr 1, 2016 / 56 Comments
Before started this section, please check the first article and learn How to Start JAVAFX! http://www.swtestacademy.com/getting-started-with-javafx/ At first, part of JavaFX tutorial series, we created a sample JavaFX project, designed the draft version of the UI and set up an...
rest assured

REST API Testing with Rest Assured

By Onur Baskirt / Mar 8, 2016 / 32 Comments
Outline In this post, I will explain what is API and API testing, what is the difference between SOAP and REST services, and how to test REST APIs with Rest Assured Library. What is API? API stands for Application Programming...
extentreports

How to Write Effective CSS Locators

By Onur Baskirt / Oct 1, 2017 / 0 Comments
Hi all, in this tutorial, I will describe you how to write effective CSS locators to interrogate web elements for your automation projects. As a rule of thumb, your interrogation strategy should be in below order: First try to use...
extentreports

Selenium-11: Execute JavaScript with JavascriptExecutor

By Onur Baskirt / Jan 27, 2016 / 15 Comments
Outline Sometimes we cannot handle some conditions or problems with Webdriver, web controls don't react well against selenium commands. In this kind of situations, we use Javascript. It is useful for custom synchronizations, hide or show the web elements, change...
javafx

Getting Started with JavaFX

By Onur Baskirt / Mar 25, 2016 / 0 Comments
When I started to work in my current position, one of my task is to do manual operations for campaign products  every week. After the second week, I thought that I have to automate this task using a GUI based...
extentreports

How to Write Smart XPath Locators

By Onur Baskirt / Sep 24, 2017 / 4 Comments
Hi all, in this tutorial, I will describe you how to write smart and non-brittle XPath locators. When we write our test scripts, we generally prefer to use id, name, class, etc. these kinds of locators. However, sometimes we could not...
extentreports

Selenium-1: Quick Start to Automation with Selenium WebDriver & JAVA & JUnit & Maven & IntelliJ

By Onur Baskirt / Sep 8, 2015 / 26 Comments
Outline Selenium Webdriver is the most popular open source web test automation framework across wide range of browsers and platforms. In this tutorial you will learn how to do web test automation with Selenium Webdriver and the related tools. Audience...
page object model

Page Object Model with C#

By Ege Aksoz / Jun 18, 2017 / 8 Comments
In the previous tutorial, we’ve taken the initial steps and entered the world of automated testing. We also wrote our first automated test. From this point on, since we are not just going to write one test, we need to...
extentreports

How to Select a Date From DatePicker Using Selenium

By Onur Baskirt / Aug 13, 2016 / 6 Comments
When you need to automate a airway, hotel, or similar websites you need to deal with Datepickers and some times it is a little bit cumbersome to select a specific date on the Datepicker or calendar.  In this post, I...
extentreports

Selenium Webdriver Performance testing with Jmeter and Selenium Grid

By Ozgur Kaya / Aug 9, 2016 / 2 Comments
In this post, we will complete Selenium Webdriver Performance testing scenario using Jmeter and Selenium Grid. 1- Install Java 7 or later If necessary https://java.com/tr/download/ 2- Download latest Jmeter version 3.0 or higher. http://jmeter.apache.org/download_jmeter.cgi 3- Download Jmeter PluginsManager JAR file and...
By | 2017-01-13T21:33:43+00:00 March 27th, 2016|JUnit, Test Frameworks|4 Comments

About the Author:

Onur Baskirt
Onur Baskirt is a senior IT professional with 10+ years of experience. He worked at Bahçesehir University, ST Microelectronics, Huawei and Ericsson as research assistant, design verification engineer and software test leader. Also, he worked as software test leader and software operations manager at Turkey's biggest technology retailer, Teknosa. Now, he is working as Head of Software Testing and Manager of two Development Teams at Kariyer.net. His current research areas are technical software testing, programming, and computer science. Formerly, he has several research works and papers on digital chip design & verification. His hobbies are sport, dancing, traveling, and nutrition. You can find detailed information about him on his linked-in page.

4 Comments

  1. NeVraX April 11, 2017 at 10:50 pm - Reply

    Thank you very much for this instructive explanation.
    If I may, you’re confusing trying and retrying : a retryCount of 3 means 4 counts in total.

    • Onur Baskirt
      Onur Baskirt April 12, 2017 at 10:51 pm - Reply

      Hi, it tries 3 times and at the 4th time it never tries and directly print a message and throw an exception.

  2. Cassius August 30, 2017 at 9:42 pm - Reply

    Will the retry also reapply other rules to the retried tests, if there are any? So if we have some FirstRule applied to the test, and RetryRule reruns the test, would FirstRule be reapplied during the rerun?

    • Onur Baskirt
      Onur Baskirt September 5, 2017 at 3:40 pm - Reply

      I have not tried that but I think it should be like that. If you try, please let me know the results.

Leave A Comment