Android developer portal with tools, libraries, and apps

Show: All / Free / Paid / Demo

Despite the annual improvement of tools — everything related to Android instrumented testing still can be challenging and requires a lot of attention from engineers.

The goal of this open-source documentation is to make the process of introducing instrumented testing into your team smoother and avoid repeating our mistakes.

Jan 2, 2022

Gordon is an Android instrumentation test runner designed for speed, simplicity, and reliability, so you can plug it in and never worry about flaky UI tests again.

Oct 29, 2019

TestCoroutineRule library to simplify testing of coroutines.

Jul 7, 2019

Shared preferences mock is the lightweight library let you increase coverage of unit tests and simplify code for them with one line of code.

Jul 1, 2019

This library allows you to run Android UI tests multiple times in a single instrumentation execution. Written in Kotlin.

Nov 11, 2018

This repository contains examples of basic unit tests written in Kotlin. In specific directories you can find gradle buildscript with needed dependencies and configuration, simple unit test and parameterized test.

Oct 10, 2018

Get bored with writing tedious and dull model tests?

Vago helps you write tests based on POJOs and supports test generation for POJOs transformations.

  • Avoid writing model testing boilerplates
  • Writing tests of POJOs faster
  • Test object transformation with simple implementation and annotations
Jun 30, 2018

Allows to use green-coffee together with Android Test Orchestrator.

Feb 18, 2018

RxTest is a Kotlin library for testing RxJava.

Main features

  • Clear tests: write clean, readable and simple tests in scala-test should style.
  • Easy to extend: create custom matchers for complex test cases or just for more readable code.
  • Simple to use: test api same as RxJava assertions you already know.
Jan 6, 2018

A complete reference for Android Testing with examples.

Nov 18, 2017

Nice and simple DSL for Espresso in Kotlin.

Oct 12, 2017

Android Espresso made more fluent ☕️

Feb 24, 2017

Espresso's consistency makes it really easy to learn.

Want to match a view with a specific id? Use withId( Need to match with a piece of text? Use withText( or withText("some text). Awesome, consistent and it's very clear what it is you are doing.


After a few hours writing test code you'll find your code being a little bit too verbose. Not anymore.

Why should you need to explicitly specify that you are matching with some text if you are passing in some text as a parameter? Some for the view id, you can already see that it is a view id.

Ristretto allows you to write the same test code as you already write, but less verbose.

Jan 20, 2017

Deploy new features to a choosen percentage of uers before delivering it to everyone.

It's useful to see if the new feature is appreciated by users, and do some adjustment before the grand opening.

Nov 19, 2016

Green Coffee is an Android library that allows you to run Cucumber scenarios in your instrumentation tests.

Sep 8, 2016

An A/B Testing Library for Android that makes writing simple tests simpler by using annotations.

Sep 7, 2016

Testing and validation of REST services in Java is harder than in dynamic languages such as Ruby and Groovy. REST Assured brings the simplicity of using these languages into the Java domain.

Aug 29, 2016

Restito is a tool which is inspired by mockito and functionally is diametrically opposite to the Rest Assured.

Restito provides a DSL to:

  • Mimic rest server behavior
  • Record HTTP calls to the server
  • Perform verification against happened calls
Aug 29, 2016

Reliable Android testing, at your service.

Aug 6, 2016

A helper class that implements both an Espresso IdlingResource and an OkHttp 2 and 3 Interceptors.

Jul 12, 2016

An Espresso IdlingResource for OkHttp.

Jun 23, 2016

A sweeter Espresso. Never write your own IdlingResource again. Never manually turn off system animations again.

May 25, 2016

Simple class created in order to make Android automation testing easier, faster, cleaner and more intuitive. It synchronizes operations that might occur on any thread - with test thread. ConditionWatcher can be used as a replacement to Espresso's IdlingResources or it can work in parallel with them.

May 6, 2016

Simple tool which help you to implement A/B Test.

Apr 27, 2016

A library to avoid boilerplate when testing beans and simple data objects.

"Tired of testing beans (aka: objects with just gettes/setters and no logic)? Do not test them!"

Mar 28, 2016

A collection of examples demonstrating different techniques for automated testing with Espresso.

Sep 19, 2015

A library for testing javac compilation with or without annotation processors.

Aug 30, 2015

Want to assert that class has private constructor? Let's do it!

Aug 15, 2015

Easy Espresso UI testing for Android applications using RxJava.

May 16, 2015

Selendroid is a test automation framework which drives of the UI of Android native and hybrid applications (apps) and the mobile web with Selendroid. Tests are written using the Selenium 2 client API and for testing the application under test must not be modified.

Selendroid can be used on emulators and real devices and can be integrated as a node into the Selenium Grid for scaling and parallel testing.

Jan 22, 2015