The following instructions assume we already have a React Native app built with expo, and use Jest for our unit-testing solution.ĭisclaimer: The following instructions are based on a windows machine running an android emulator, output/commands may vary slightly on different architectures. Still, tools like Appium and WebdriverIO allow us to work over a common and somewhat standard interface. On a mobile app, this could be particularly useful given the diversity of devices and platforms our software is running on top of.ĭue to the cross-platform nature of React Native, e2e testing proves to be particularly messy to work on, since we have to write all of our tests with this in mind, changing the way we access to certain properties or query elements no matter the tool we use for connecting to it. Stop the server once test completes or fails, ideally to be performed from the teardown() methods.# Technology Setting up Appium for React Native e2e TestingĮnd to End (e2e) testing is a technique that helps ensure the quality of an app on an environment as close as real life as possible, testing the integration of all the pieces that integrate a software.

Before tests kick in, check and start the Appium server on a desired port, ideally to be performed from setup() methods.

I have used Java, but can be used in other scripting languages.

I'll highlight the trick for a Mac, but pretty sure it can be similarly done on a Windows. Thus we have to depend on the OS services (Mac or Windows). There are some (like me) who use ' avm', so those in-built classes won't work.

At least an appium server instance installed via npm.However, to use it, there are two prerequisites: Starting the Appium server prior to executing our test scripts can be done via terminal / command line or the GUI, and now also programatically from within our automation suite.Īppium does provide classes 'AppiumDriverLocalService' and 'AppiumServiceBuilder' to play around with the server programatically, and more information can be found on it here. Appium is an open source mobile test automation tool.

Close appium server cmd by port