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Sergio Sastre

Android developer by heart.
I've worked most of my career on apps with millions of users like Autoscout24, Check24 and Pizza.de from Delivery Hero.

I make things happen!
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What Sergio's working on

What Sergio's working on

2022
May 05, 2022
May 05, 2022
Released  AndroidUiTestingUtils 1.1.0-beta with new features:

  • Change Display Size configuration via TestRule & ActivityScenario
  • Allow to set DisplaySizeTestRule and FontSizeTestRule timeouts. Both TestRules change the config via adb. Therefore, this can be helpful on emulator/devices that take too long for the corresponding adb commands to take effect.
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Apr 28, 2022
Apr 28, 2022
Uploaded the slides of my talk "Writing bulletproof code with property-based testing" at Droidcon Lisbon
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Mar 30, 2022
Mar 30, 2022
Blog post about UI/UX on Android and how screenshot testing can help with that


Design a pixel perfect Android app 🎨

a story of UI/UX and screenshot testing
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Mar 29, 2022
Mar 29, 2022
Update Road-To-Effective-Snapshot-Testing:
- Include Jetpack Compose examples to screenshot test composables
- Proper implementation of Dark mode in all components
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Mar 15, 2022
Mar 15, 2022
Updated Road-To-Effective-Snapshot-Testing
  • Replace FontSizeTestRule v1.1.1 with AndroidUiTestingUtils 1.0.0
  • Add tests for snapshot testing full Activity
  • Add tests for different configurations with AndroidUiTestingUtils:
  1. Locales
  2. Font sizes
  3. Orientations
  4. UI modes (i.e. Light/Dark modes)
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