I am always running into NoClassDefFoundError
when using Travis CI to test an Android application with Robolectric and Gradle.
All tests pass in Android Studio. So I guess it's a Travis specific configuration issue. Any experience in running Robolectric tests with Gradle and Travis?
I've the following .travis.yml:
language: android
android:
components:
- platform-tools
- tools
- build-tools-21.1.2
- android-21
- extra-android-m2repository
licenses:
- android-sdk-license-.+
notifications:
email: false
script: ./gradlew clean test
And the following Robolectric specific build.gradle:
apply plugin: 'robolectric'
robolectric {
include '**/*Test.class'
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:21.0.3'
androidTestCompile 'junit:junit:4.8.1'
androidTestCompile 'org.robolectric:robolectric:3.0-SNAPSHOT'
androidTestCompile 'com.squareup.assertj:assertj-android:1.0.0'
}
This is my GitHub repo: https://github.com/a11n/android-travis-test/tree/travis-configuration-test
And this is the Travis log: https://travis-ci.org/a11n/android-travis-test/builds/49715336
de.ad.android.app.MainActivityTest > testLifecycle FAILED
java.lang.NoClassDefFoundError at MainActivityTest.java:19
Caused by: java.lang.ClassNotFoundException at MainActivityTest.java:19
It seems the Android dependency cannot be resolved.
Any ideas?
Update 1:
With --debug flag the log discovers which class could not be found:
15:45:33.082 [DEBUG] [TestEventLogger] Caused by:
15:45:33.082 [DEBUG] [TestEventLogger] java.lang.ClassNotFoundException: android.support.v4.view.OnApplyWindowInsetsListener
15:45:33.083 [DEBUG] [TestEventLogger] at org.robolectric.internal.bytecode.InstrumentingClassLoader.getByteCode(InstrumentingClassLoader.java:166)
15:45:33.083 [DEBUG] [TestEventLogger] at org.robolectric.internal.bytecode.InstrumentingClassLoader.findClass(InstrumentingClassLoader.java:123)
15:45:33.083 [DEBUG] [TestEventLogger] at org.robolectric.internal.bytecode.InstrumentingClassLoader.loadClass(InstrumentingClassLoader.java:95)
15:45:33.083 [DEBUG] [TestEventLogger] at android.support.v7.app.ActionBarActivityDelegate.$$robo$$ActionBarActivityDelegate_7c55_createDelegate(ActionBarActivityDelegate.java:51)
15:45:33.083 [DEBUG] [TestEventLogger] at android.support.v7.app.ActionBarActivityDelegate.createDelegate(ActionBarActivityDelegate.java)
15:45:33.084 [DEBUG] [TestEventLogger] at android.support.v7.app.ActionBarActivity.$$robo$$ActionBarActivity_eab0_getDelegate(ActionBarActivity.java:557)
15:45:33.084 [DEBUG] [TestEventLogger] at android.support.v7.app.ActionBarActivity.getDelegate(ActionBarActivity.java)
15:45:33.084 [DEBUG] [TestEventLogger] at android.support.v7.app.ActionBarActivity.$$robo$$ActionBarActivity_eab0_onCreate(ActionBarActivity.java:123)
15:45:33.084 [DEBUG] [TestEventLogger] at android.support.v7.app.ActionBarActivity.onCreate(ActionBarActivity.java)
I'll investigate a little bit further in this direction, maybe it's a known Robolectric issue.
Update 2:
There seems to be an issue with AppCompat v7. https://github.com/robolectric/robolectric-samples/commit/85e21dcde99bc860ad91bcf2b4e3605bc267fcaa
However, I try to remove this dependency and check if Travis build passes then.
The issue was caused by AppCompat v7. dependency which seems to be a known issue with Travis CI.
For above's use-case, removing the dependency solved the problem.
I just checked. Can you add next to you app build.gradle
:
android {
...
sourceSets {
androidTest.setRoot( 'src/androidTest' )
}
}
dependencies {
compile 'com.android.support:support-v4:21.0.3'
androidTestCompile 'com.android.support:support-v4:21.0.3'
}
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