Screenshot Testing

(Automated testing that helps prevent visual regressions in Android apps) Testing on Android nowadays tools like Mockito/Mockk and Espresso make it easy to write unit and UI tests for Android. At Runtastic, our Android engineers share a lot of UI components across our apps. With screenshot testing, we can test…

When testing the UI of an app, there are several ways to do this automated. Basic UI tests, that check for certain elements, states, texts etc. Or screenshot tests, where you setup a screen, take a screenshot and compare it to your baseline screenshot. …

Why we migrated from Shot to Paparazzi to have better screenshot tests — Screenshot testing is becoming a trending topic nowadays in the Android community. Typically, we are used to testing our UI in Android with instrumentation tests and with the help of the Espresso framework verifying that our app behaves as expected. But how to ensure that our UI looks as expected…

Automation Framework Customization: Part-1 | Expertise: Chūnin — In this article, we will look at how we can create our own custom Visual Assertion class to compare screenshots and optimize it further to visually validate the correctness and appearance of any given UI components. But first, let's understand why our UI tests fail to give us the confidence…

Screenshot tests are the most effective way how to test your View layer. And if you are using Compose, you already have them — @Preview-annotated methods for Android Studio. I showed this in my previous article that demonstrated how to connect Showkase & Facebook’s screenshot testing library. But this library…

Today, there are many options to make screenshots of any URL with Go: Selenium WebDriver client for Go. You can use the Go analog of Puppeteer. Playwright library. Or Screenshot API as a service. They might overlap, but there is no best solution. …

Edit: I wrote some more about snapshot testing and improving on our setup here: Improving Compose snapshot tests with Paparazzi Snapwhat? Snapshot testing (or screenshot testing, I will be using both terms interchangeably) is a type of testing which helps us ensure our UI does not change unintentionally. A snapshot test…

Screenshot testing is a great tool which sits between unit tests and Espresso tests. You can test the UI and catch many more real-world regressions compared to unit tests, but without the negatives of Espresso tests: high maintenance and flakiness. Jetpack Compose has a native screenshot testing support, but it…

While performing automation testing, even the most reliable of test cases might face roadblocks as the action progresses. A failed test case, for instance, is a sure sign that something has gone wrong. Test failure can either be due to some issue in the script or due to some issue…