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How do you run parallel test cases in Selenium Grid?

By Angel Hume

How do you run parallel test cases in Selenium Grid?

Selenium Grid setup for parallel execution

  1. Step 1: Creating a hub.
  2. Step 2: Defining the nodes and connecting to that hub.
  3. Note: Please make sure that you select different ports for different nodes to connect with the single hub running on port 4444.
  4. Output Screen:

Can we run parallel tests in JUnit?

Yes, by default I believe it runs tests sequentially. JUnit 4.6 introduced an experimental ParallelRunner to run tests in parallel – I don’t know of its current status.

How do you run parallel test cases in JUnit?

There are 2 ways to run our test cases in parallel.

  1. To use JUnit ParalelComputer class.
  2. Use of surefire plugin of Maven.

How does Selenium handle parallel execution?

Along with the parallel attribute, the thread-count attribute helps in defining the number of threads one wishes to create while running the tests in parallel. For example, in case one has three methods, with thread count as two, then during execution, two threads shall start in parallel with the corresponding methods.

Does Selenium Grid supports parallel test execution?

Selenium-Grid allows you to run your tests on different machines against different browsers in parallel. That is, running multiple tests at the same time against different machines running different browsers and operating systems. Essentially, Selenium-Grid support distributed test execution.

How do JUnit tests run?

In order to execute JUnit tests, there are certain ways wherein you could run a single class file with one or multiple test method(s) through the following options: ‘Run as JUnit test’ option. Run last executed JUnit test through the menu option. Run using shortcut keys.

How do you run test cases sequentially in JUnit?

This class declared three types of execution order, which can be used in your test cases while executing them.

  1. NAME_ASCENDING(MethodSorters. NAME_ASCENDING) – Sorts the test methods by the method name, in lexicographic order.
  2. JVM(null) – Leaves the test methods in the order returned by the JVM.
  3. DEFAULT(MethodSorter.

What supports parallel test execution?

TestNG is a test automation framework that allows you to efficiently organize your tests and maintain readability as well. With its support for parallel testing, TestNG makes it easy to perform parallel test execution. Using the auto-defined XML file, you can specify parallel attributes to classes, tests, and methods.

How do you do parallel testing?

How to implement Parallel Testing?

  1. Step #1: Install java and configure the environment variables.
  2. Step #2: Install Eclipse IDE.
  3. Step #3: Install Selenium.
  4. Step #4: Install TestNG.
  5. Step #5: Run Selenium scripts.
  6. Methods: TestNG helps us to run all test methods in separate threads.

Which component of Selenium supports parallel test execution?

Selenium RC also supports parallel execution of different test cases as it supports Selenium Grid.