For other distributions, see the official docs. The steps in this section will install the Java 8 JDK on Ubuntu 16.04. Throughout this guide, these Linodes will be referred to as hub, node-1, and node-2. This guide uses three Linodes for this purpose, but you can also run all of the nodes from the same Linode if you prefer. Install Java and other dependencies on each Linode that will be part of the Selenium grid. A simple test script will then be used to demonstrate running tests against different versions of Firefox. This guide shows how to set up a simple Selenium grid consisting of a hub and two nodes, all on separate Linodes. By running the test suite across a grid consisting of multiple servers, it is possible to distribute the tests across multiple nodes and significantly increase the performance of the testing process. sending a Safari test to a node with OSX and the Safari webdriver).įor larger projects, running a lengthy test suite in series can be time consuming.
The hub will delegate each test to a node that has the requested capability (e.g. A test suite can then be run against the grid, with each test run on multiple browsers and operating systems. This makes it possible to set up a grid consisting of servers (or virtual machines) running Linux, OSX, and Windows. Selenium runs on Java and is compatible with all major operating systems. The nodes and hub can be run on the same computer or server, or can be located on separate Linodes. However, Selenium can also be configured as a grid, with multiple nodes communicating with a central hub.
This can make it more complicated to get running, but allows you to test your application’s behavior on exactly the platforms that users are likely to need.įor many applications, the Selenium standalone server is sufficient. In contrast to similar tools such as Nightmare.js, Selenium can run tasks or tests on any version of any major browser. It is most often used for testing web applications, but can also be used to automate any task that a web browser can perform. Selenium is a browser automation library with bindings for most common programming languages.
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