DeviceAnimationTestRule
Running instrumentation tests on Android using Espresso requires disabling animations. DeviceAnimationTestRule is a JUnit rule which disables device animations prior to running any test, and enable them after every test has been executed.
This solution is just a wrapper around the solution proposed by artem-zinnatullin in his blog entry.
SetUp
Add to top level gradle.build file
allprojects {
repositories {
maven {
url "https://jitpack.io"
}
}
}
Add to app module gradle.build file
dependencies {
androidTestCompile 'com.github.VictorAlbertos:DeviceAnimationTestRule:0.0.2'
}
Usage
Add to Android manifest the next permission:
<uses-permission android:name="android.permission.SET_ANIMATION_SCALE"/>Declare DeviceAnimationTestRule as an static field annotated with @ClassRule to your suit:
@ClassRule static public DeviceAnimationTestRule
deviceAnimationTestRule = new DeviceAnimationTestRule();
Limitation
As it has been documented in this issue, you need to run your tests on devices upon on API 21.