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@SergioSastre

Sergio Sastre Florez

@SergioSastre·Munich·Joined March 2021

I make things happen

About

Committed to self-improvement, driven by passion.

TDD, Unit & UI testing lover. Android Developer consultant.

Currently consulting for Deutsche Bahn, previously worked for Hermes, Check24, AutoScout24 and Pizza.de from Liferando

Available for

Nothing here yet.

Sergio Sastre Florez's blogs

Sergio's little tech cornersergiosastre.hashnode.dev12 posts

Articles Comments

Back to the Future: Compose Previewing Your XML-Based Views!

Jetpack Compose has transformed Android UI development with its declarative approach, making UI code simpler to write. One of its standout features is Compose Previews, which allows developers to instantly view how Composable functions will look on a...

Dec 17, 2024 · 6 min readsergiosastre.hashnode.dev

Efficient Testing with Robolectric & Roborazzi Across Many UI States, Devices and Configurations

Robolectric is a popular UI testing tool from Google that enables running UI tests without a physical device or emulator. It supports most androidx.test APIs, like Espresso, ActivityScenario & FragmentScenario as well as ComposeTestRule. Robolectric ...

Nov 9, 2023 · 10 min readsergiosastre.hashnode.dev

Write Once, Test Everywhere: Cross-Library Screenshot Testing with AndroidUiTestingUtils 2.0.0

As observed in the previous blog post of this series, screenshot tests have a lot in common regardless of the library they're written with, namely: Setting the device configuration (e.g. Locale, Ui Mode, Font scale...) Setting the Subject Under Tes...

Sep 15, 2023 · 9 min readsergiosastre.hashnode.dev

A World Beyond Libraries: Cross-Library screenshot tests on Android

The state of the art of screenshot testing for Android Screenshot testing is trending in Android. Many new libraries have come up, and even Google announced at I/O 20231 that they're working on a new tool for this based on Composable Previews powered...

Aug 23, 2023 · 6 min readsergiosastre.hashnode.dev

Top-notch stateful testing in Android

Broadly speaking, in an app, state is any value that can change over time. All Android apps display state to the user, e.g. an enabled/disabled button, the text displayed in a View, etc. We expect users to modify the state by performing actions throu...

Aug 31, 2022 · 12 min readsergiosastre.hashnode.dev

About

Committed to self-improvement, driven by passion.

TDD, Unit & UI testing lover. Android Developer consultant.

Currently consulting for Deutsche Bahn, previously worked for Hermes, Check24, AutoScout24 and Pizza.de from Liferando

Available for

Nothing here yet.

Sergio Sastre Florez's blogs

Sergio's little tech cornersergiosastre.hashnode.dev12 posts