#Snapshot android android

In order to pull screenshots only from some of them, set ANDROID_SERIAL environment variable to a comma-separated list of serials (as they appear in the first column of adb devices output) of the devices you want to use. For an example, you can take a look at the sample app’s screenshot directory.īy default, screenshots from all connected devices and emulators are pulled. This unique identifier combines the API level, screen density category, availability of Google Play Services, screen resolution and device architecture. Now recorded screenshots will be placed in individual directories based on a unique device identifier. Screenshot-tests-for-android plugin in your adle:īuildscript

#Snapshot android android

Straightforward if you’re already using Gradle and the Android Setting up screenshot-tests-for-android in a Gradle build is very We talked about screenshot-tests-for-android at Droidcon NYC 2015, and this is a good introduction to the concepts involved, even though the API might be slightly different. Then you can create a screenshot in a test. Getting Startedįirst you need to setup the gradle plugin. We have utilities to generate reports with all the screenshots, and we also provide a way to plug this into your Continuous Integration, by asking you to “record” screenshots the first time you create them (or whenever you intentionally change them), and letting your continuous integration check against the recorded screenshots. On the test thread, and therefore not having to worry about the impact We achieve this by mimicing Android’s measure(), layout() and draw() This is crucial because now you as a developer don’t have to worry about threading and timing issues. This screenshot can then be used to track changes and write screenshot-base tests. Screenshot-tests-for-android generates deterministic screenshots of views during a test run.īy deterministic, we mean that every single run of your tests generates a pixel-perfect screenshot of the app as it would appear on a user’s device. Screenshot-tests-for-android can solve these problems by providing a test framework that checks for visual differences across changes. Layout or view changes work correctly in all configurations? How do you prevent visual regressions in paddings and margins and colors from creeping in? Testing rendering for your Android app is hard.