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How do you conduct a parallel test execution?
How to perform Parallel Execution in TestNG? Running test methods parallelly in TestNG using Selenium. Running test Classes parallelly in TestNG using Selenium. Running test Suites parallelly in TestNG using Selenium.
What is parallel test execution?
Parallel testing is a test automation method wherein test cases are simultaneously run on multiple combinations of browsers, operating systems, and devices. Virtual devices are generally used for parallel test execution as they enable you to simulate hundreds of testing environments.
What is parallel execution in Jenkins?
This plugin adds a tool that lets you easily execute tests in parallel. This is achieved by having Jenkins look at the test execution time of the last run, split tests into multiple units of roughly equal size, then execute them in parallel.
How is parallel test executor plugin used in Jenkins?
In these cases, parallelizing test execution across multiple machines is a great way to speed up pipelines. The Parallel Test Executor plugin lets us leverage Jenkins do just that with no disruption to the rest of the build system. For this post, I’ll be running a pipeline based on the Jenkins Git Plugin.
How is Jenkins pipeline used to parallelize tests?
Jenkins Pipeline is a suite of plugins that allows creating simple-to-complex build stages for your testing environment on CI. We can use Jenkins Pipeline to run a few stages at the same time and thanks to that parallelize test suite across a few stages to complete tests faster.
Is it possible to parallelize test execution on multiple machines?
Build systems may or may not support running tests in parallel, but they still only use one machine even while other lab machines sit idle. In these cases, parallelizing test execution across multiple machines is a great way to speed up pipelines.
How long does it take to run parallel test pipeline?
On my quad-core machine, executing this pipeline takes about 13 minutes and 30 seconds. Of that time, it takes 13 minutes to run about 2.7 thousand tests in serial. This looks like an ideal project for parallel test execution: a short build followed by a large number of serially executed tests that consume the most of the pipeline time.