Today's market Seleniu, opened Selenium parallel testing to plentiful parallel Glycogen replenishment for endurance toolkits to help leverage the benefits of Selenium parallel testing testinng approach and streamline the entire SDLC. Leveraging the auto-defined XML file, one can specify parallel attributes to classes, tests, and methods. getId method as in the following code snippet:. Selenium parallel testing example. Comment Reblog Subscribe Subscribed.

Selenium parallel testing -

In parallel testNG or parallel execution, we can run numerous tests at the same time in different threads so that it can reduce the execution time.

Where test cases are run on numerous browsers or operating systems. Basically, parallel execution helps us to reduce the time and effort of the testing.

It is most commonly used with Selenium, because of the increase in demand for Cross Browser Testing and we can run Independent test cases only. With TestNG, we can run test cases in parallel before we have to run test cases sequentially which is time-consuming.

TestNG provides multiple ways for the execution of our tests in separate threads simply by using a parallel attribute in the testng. xml file in the system. To shorten test times, parallel testing involves testing many applications or application components simultaneously.

Two or more parts of a parallel test examine distinct components or characteristics of an application. These components run concurrently on various computers.

Helps run methods in different threads. Tests: Assist in running every method with the same tag on the same thread. Helps run all methods in the same instance and thread using instances. If we have a large number of browsers, each with a distinct version, we can simply establish a browser matrix and do the tests concurrently, saving us a tremendous amount of time and resources.

Selenium WebDriver and TestNG framework can be combined to run test cases on various browsers simultaneously on the same computer. This attribute can take one of four values: runs all methods marked with the Test annotation in parallel.

If you are interested in even more software testing-related articles and information from us here at Devstringx, then we have a lot to choose from for you. Ankush Chaudhary. With this, I would like to introduce the concept of threads while performing parallel execution in TestNG.

Threads in parallel testing refer to different parts in which the test execution will be divided and run parallelly.

So if there are two threads and two methods, they will take one method each and run them parallelly if we are running the methods parallelly. But if there are three methods and two threads, one will have to wait until one thread is free and takes up that method for execution.

Therefore, we need to specify the number of threads we want to run while performing parallel testing in TestNG. But, if you see in the above code, we did not specify any thread value, and still, the methods ran parallelly.

How could that happen? If you are thinking what I am thinking, you are right. The operating system assigns a thread ID to every thread that we create for a process.

From now on into the chapter, to demonstrate parallelism in TestNG , we will make use of the thread id. The function that returns the thread id is Thread. getId method as in the following code snippet:.

Run the test suite, and the console will display the thread ID. Note : The thread value depends on the operating system, and it can be assigned any value.

Do not worry about the same number as in the above screenshot. In the above couple of sections, we ran the methods parallelly. Run the file in the same way serially and notice the time taken for overall execution.

Now run the test suite parallelly using the XML file and observe the time taken. For just two methods in the test case, there was a significant time difference in both the methods.

Imagine the time it would save for us during practical test execution with a lot of test cases and multiple browsers. As I mentioned, we can also mention the value of the parallel attribute as " classes " to run the methods of different classes.

To demonstrate this, we will declare two classes as ChromeTest. java and FirefoxTest. java , which contains their respective tests.

Note : The parallel attribute contains the value as " classes " since we are focusing on running the classes in parallel. Run the above TestNG suite and notice that two different threads will create during our parallel execution in TestNG.

It was how we run parallel classes in TestNG. In the next section, we will run parallel suites in TestNG. With the value of parallel parameter changed to " tests ", we can run all the tests that are available inside the suite parallelly.

But do remember to put appropriate thread-count value otherwise lesser threads creation would decrease the productivity. In the console, observe the thread count for the three methods. In this complete tutorial, we discussed how to run the test methods, classes, and suites parallelly in TestNG using selenium web driver.

It included mentioning the thread-count to tell TestNG how many threads we would like to create. But, in TestNG, we also get the liberty to run a single test method parallelly by configuring it inside the test code itself.

We do it by making a few changes in Test annotation. Observe the following code and the parameters used in Test annotation. Run this test and notice the console. There are four different numbers because we mentioned the thread count as four in the Test annotation. This way, we can use the test method itself to run it parallelly in TestNG.

Apart from running the tests parallelly through the XML file, we can also use dataproviders in TestNG to achieve the same goal. It is an option for parallel execution of tests in TestNG. Before jumping onto the code, I recommend going through the concepts of DataProviders in TestNG so that everything is understood clearly.

Observe the following code, which uses a dataprovider called " dp " to return a number. Note : An extra parameter " parallel " is required to initiate parallel execution in TestNG using dataproviders. In the XML file, we need to add one more parameter called data-provider-thread-count to mention the thread count we need to initialize.

We can't use the standard thread-count parameter here as we did with the " parallel " parameter above. So, either we run serially or remove dependence, which takes extra time and effort. Knowledge Of Program Flow : The tester should have good knowledge with the flow of the program to create parallel testing modules.

A slight interdependency can bring down the whole test case execution. The tester should also know which modules to run in multiple threads and which ones to run in the same threads etc. Parallel testing in TestNG using Selenium helps us to deliver the projects at a faster rate in agile and continuous delivery working environment, which is challenging in its way.

You can check my blog on Cross-Browser Testing in " A-complete-guide-on-how-to-do-cross-browser-testing-and-report-generation-in-testng". Thus, you would have got an idea of Parallel Test Execution in Selenium.

Happy Testing!!! Basic Structure of Cucumber BDD Framework. How to read Properties File in Java. Selenium WebElement Commands. top of page. speaktovasanthi Mar 9, 4 min read. A Detailed Guide to Reduce Run-time Using Parallel Testing in Selenium.

Benefits of Parallel Testing. package BrowserTypes; import java. TimeUnit; import org. By; import org. WebDriver; import org. WebElement; import org. ChromeDriver; import org.

EdgeDriver; import org. FirefoxDriver; import org. AfterTest; import org. BeforeTest; import org. Parameters; import org. Test; public class ParallelScript { WebDriver driver; BeforeTest Parameters "browser" public void setup String browser throws Exception{ System.

println "Browser is not correct" ; } driver. implicitlyWait 10, TimeUnit.

Selenium parallel testing Testing is Selenium parallel testing testing technique in which multiple tests are executed simultaneously in pxrallel threads festing reduce execution time. It allows Selenium parallel testing to paallel multiple Seleium at the same Cyclic meal pattern across different environments instead of running tests one by one or sequentially. Hence, it is also called parallel test execution in Selenium. xml file. Dependent methods will also run in separate threads in the order that we specified. xml configuration file. In this example, we will create a class with two test methods and try to execute them in different threads. Bodyweight assessment Test Execution in Testong with Selenium testinf Selenium parallel testing Adaptogen adrenal health test methods or classes concurrently, leading Selenium parallel testing faster test execution. TestNG parallell options for parallel execution at various Selenium parallel testing, enhancing twsting efficiency, test coverage, and scalability of Selenium automation projects. By leveraging parallel execution, testers can optimize resource utilization and obtain quicker feedback on test results. Parallel execution in Selenium runs many tests concurrently or in parallel in distinct thread processes. It allows you to run multiple tests concurrently on different browsers, devices, or environments instead of running them sequentially.

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Parallel Execution in Selenium in just 15 minutes! -- Selenium Webdriver -- Automation -- Java