Robolectric 3.0 in Android Studio

[Felipe Silva]

Hi everyone,

I have built Robolectric 3.0 SNAPSHOT on my local machine using scripts/install-robolectric.sh

This created the robolectric-3.0-SNAPSHOT-jar-with-dependencies.jar

Now I want to use it on Android Studio to run my tests. I will also need to add this jar to version control.

I have modified my build.gradle to this:

buildscript {

    repositories {

        mavenCentral()

    }

    dependencies {

        classpath 'com.android.tools.build:gradle:1.0.0'

        classpath 'com.github.jcandksolutions.gradle:android-unit-test:2.0.2'

    }

}

dependencies {

    compile 'com.google.guava:guava:18.0'

    compile 'com.android.support:support-v4:21.0.3'

    compile 'com.squareup.dagger:dagger:1.2.1'

    provided 'com.squareup.dagger:dagger-compiler:1.2.1'

    testCompile 'junit:junit:4.11'

    testCompile 'org.assertj:assertj-core:1.7.1'

    testCompile 'org.mockito:mockito-core:1.9.5'

    testCompile 'com.squareup:fest-android:1.0.8'

    testCompile files('libs/robolectric-3.0-SNAPSHOT-jar-with-dependencies.jar')

}

But when I try to run the tests, I get the following error:

java.lang.RuntimeException: java.lang.RuntimeException: java.lang.NoSuchMethodException: android.os.Looper.<init>(boolean)

at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:227)

at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)

at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)

at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)

at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)

at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)

at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)

at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)

at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)

at org.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:167)

at org.junit.runners.ParentRunner.run(ParentRunner.java:236)

at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.runTestClass(JUnitTestClassExecuter.java:86)

at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.execute(JUnitTestClassExecuter.java:49)

at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassProcessor.processTestClass(JUnitTestClassProcessor.java:69)

at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:48)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:483)

at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)

at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)

at org.gradle.messaging.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)

at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)

at com.sun.proxy.$Proxy2.processTestClass(Unknown Source)

at org.gradle.api.internal.tasks.testing.worker.TestWorker.processTestClass(TestWorker.java:105)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:483)

at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)

at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)

at org.gradle.messaging.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:360)

at org.gradle.internal.concurrent.DefaultExecutorFactory$StoppableExecutorImpl$1.run(DefaultExecutorFactory.java:64)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

at java.lang.Thread.run(Thread.java:745)

Caused by: java.lang.RuntimeException: java.lang.NoSuchMethodException: android.os.Looper.<init>(boolean)

at org.robolectric.util.ReflectionHelpers.callConstructor(ReflectionHelpers.java:233)

at org.robolectric.shadows.ShadowLooper.createLooper(ShadowLooper.java:43)

at org.robolectric.shadows.ShadowLooper.access$000(ShadowLooper.java:25)

at org.robolectric.shadows.ShadowLooper$1.create(ShadowLooper.java:37)

at org.robolectric.shadows.ShadowLooper$1.create(ShadowLooper.java:35)

at org.robolectric.util.SoftThreadLocal$1.initialValue(SoftThreadLocal.java:8)

at org.robolectric.util.SoftThreadLocal$1.initialValue(SoftThreadLocal.java:6)

at java.lang.ThreadLocal.setInitialValue(ThreadLocal.java:180)

at java.lang.ThreadLocal.get(ThreadLocal.java:170)

at org.robolectric.util.SoftThreadLocal.get(SoftThreadLocal.java:13)

at org.robolectric.shadows.ShadowLooper.resetThreadLoopers(ShadowLooper.java:55)

at org.robolectric.Shadows.reset(Shadows.java:1384)

at org.robolectric.Robolectric.reset(Robolectric.java:20)

at org.robolectric.internal.ParallelUniverse.resetStaticState(ParallelUniverse.java:40)

at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:216)

... 35 more

Caused by: java.lang.NoSuchMethodException: android.os.Looper.<init>(boolean)

at java.lang.Class.getConstructor0(Class.java:3074)

at java.lang.Class.getDeclaredConstructor(Class.java:2170)

at org.robolectric.util.ReflectionHelpers.callConstructor(ReflectionHelpers.java:219)

... 49 more

Do I need to add anything else to build.gradle?

Thanks,

Felipe

[Felipe Henriques da Silva]

I found the root cause of the problem.

Well, from the stacktrace it was clear that Robolectric was not finding the correct android.jar. But since it should download all dependencies at runtime, I was not sure about why.

The problem is that to emulate a clean environment, I deleted the .m2 folder. But robolectric had previously downloaded the dependencies, so it was not downloading them again at runtime. While debugging the TestRunner I found out why: the java environment cache folder was still there. Deleting this folder made Robolectric start downloading the dependencies at runtime again. Should this temp cache folder be deleted somehow?

Thanks,

Felipe

 

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[Naoya Makino]

Hey Felipe, did you figure out the problem? I am getting the exact same error.

[Felipe Henriques da Silva]

Yes, the cause is described in my last email, as well as the solution. You need to delete the cached java folder.

[Naoya Makino]

sorry could you describe how I can delete the cached java folder? I am a Mac user if that helps

[Felipe Henriques da Silva]

I am on a mac as well, but this cached folder is not fixed. If you can debug robolectric, the fastest way is to put a breakpoint on the TestRunner and check the name of the cached folder it is using.

[Naoya Makino]

thanks for the reply, Felipe. Would you mind if you could describe how you could debug robolectric? and May I see where you found your cached folder? it might give me a clue on where the cached folder can be located.

much appreciated your help.

[Felipe Henriques da Silva]

Try this:

- Go to /var/folders/

- run "find . -name robolectric"

It will return something like this:

./bk/f9zdkyjn08s852pg8ly16lqsf9s8yp/T/robolectric

Remove this folder and any file/folder with "robolectric" in its name.

Now run your tests.

[Naoya Makino]

Hi Felipe, thank you so much for your help. I really appreciate your help.

I was able to delete the temp files related to `robolectric` based on your description. now I am getting the original problem.

```

[INFO] Unable to find resource 'org.robolectric:shadows-core:jar:21:3.0-SNAPSHOT' in repository sonatype (https://oss.sonatype.org/content/groups/public/)

    Unable to resolve artifact: Missing:

    ----------

    1) org.robolectric:shadows-core:jar:21:3.0-SNAPSHOT

      Try downloading the file manually from the project website.

      Then, install it using the command:

          mvn install:install-file -DgroupId=org.robolectric -DartifactId=shadows-core -Dversion=3.0-SNAPSHOT -Dclassifier=21 -Dpackaging=jar -Dfile=/path/to/file

      Alternatively, if you host your own repository you can deploy the file there:

          mvn deploy:deploy-file -DgroupId=org.robolectric -DartifactId=shadows-core -Dversion=3.0-SNAPSHOT -Dclassifier=21 -Dpackaging=jar -Dfile=/path/to/file -Durl=[url] -DrepositoryId=[id]

      Path to dependency:

      1) org.apache.maven:super-pom:pom:2.0

      2) org.robolectric:shadows-core:jar:21:3.0-SNAPSHOT

    ----------

    1 required artifact is missing.

    for artifact:

      org.apache.maven:super-pom:pom:2.0

    from the specified remote repositories:

      sonatype (https://oss.sonatype.org/content/groups/public/),

      central (http://repo1.maven.org/maven2)

        Caused by:

        org.apache.maven.artifact.resolver.MultipleArtifactsNotFoundException: Missing:

        ----------

        1) org.robolectric:shadows-core:jar:21:3.0-SNAPSHOT

          Try downloading the file manually from the project website.

          Then, install it using the command:

              mvn install:install-file -DgroupId=org.robolectric -DartifactId=shadows-core -Dversion=3.0-SNAPSHOT -Dclassifier=21 -Dpackaging=jar -Dfile=/path/to/file

          Alternatively, if you host your own repository you can deploy the file there:

              mvn deploy:deploy-file -DgroupId=org.robolectric -DartifactId=shadows-core -Dversion=3.0-SNAPSHOT -Dclassifier=21 -Dpackaging=jar -Dfile=/path/to/file -Durl=[url] -DrepositoryId=[id]

          Path to dependency:

          1) org.apache.maven:super-pom:pom:2.0

          2) org.robolectric:shadows-core:jar:21:3.0-SNAPSHOT

        ----------

        1 required artifact is missing.

        for artifact:

          org.apache.maven:super-pom:pom:2.0

        from the specified remote repositories:

          sonatype (https://oss.sonatype.org/content/groups/public/),

          central (http://repo1.maven.org/maven2)

```

I got this problem before and I manually installed shadows-core-3.0-20150324.035017-318-21.jar from https://oss.sonatype.org/content/groups/public/org/robolectric/shadows-core/3.0-SNAPSHOT/ with the command 

`mvn install:install-file -DgroupId=org.robolectric -DartifactId=shadows-core -Dversion=3.0-SNAPSHOT -Dclassifier=21 -Dpackaging=jar -Dfile=/path/to/file`

and got to this problem of ` java.lang.RuntimeException: java.lang.NoSuchMethodException: android.os.Looper`. I am not quite sure what the root cause of this issue is. Do you see anything? I really appreciate your help on this.

here is my gradle related to robolectric

buildscript {

    repositories {

        mavenCentral()

        maven { url 'https://oss.sonatype.org/content/repositories/snapshots' }

        maven { url 'https://repo.commonsware.com.s3.amazonaws.com' }

        maven { url 'http://download.crashlytics.com/maven' }

    }

    dependencies {

        classpath 'com.android.tools.build:gradle:1.0.0'

        classpath 'com.crashlytics.tools.gradle:crashlytics-gradle:1.+'

        classpath 'org.robolectric:robolectric-gradle-plugin:0.14.+'

        classpath 'com.jakewharton.sdkmanager:gradle-plugin:0.12.+'

    }

}

apply plugin: 'robolectric'

repositories {

    mavenCentral()

    maven { url 'http://download.crashlytics.com/maven' }

    maven { url 'https://oss.sonatype.org/content/repositories/snapshots' }

    maven { url 'https://repo.commonsware.com.s3.amazonaws.com' }

}

android {

    compileSdkVersion 21

    buildToolsVersion '21.1.2'

    defaultConfig {

        minSdkVersion 16

        targetSdkVersion 21

    }

}

dependencies {

...

    androidTestCompile('org.robolectric:robolectric:3.0-SNAPSHOT') {

        exclude module: 'classworlds'

        exclude module: 'commons-logging'

        exclude module: 'httpclient'

        exclude module: 'maven-artifact'

        exclude module: 'maven-artifact-manager'

        exclude module: 'maven-error-diagnostics'

        exclude module: 'maven-model'

        exclude module: 'maven-project'

        exclude module: 'maven-settings'

        exclude module: 'plexus-container-default'

        exclude module: 'plexus-interpolation'

        exclude module: 'plexus-utils'

        exclude module: 'wagon-file'

        exclude module: 'wagon-http-lightweight'

        exclude module: 'wagon-provider-api'

        exclude group:'org.hamcrest'

    }

[bme...@twitter.com]

Amazing find, Felipe!

I had exactly the same problem, for exactly the same reason.  Tried to create a clean env, and as soon as I did, got failures.  Thanks a million.

-blake 

[André da Silva Medeiros]

Hi Felipe,

I am facing this very problem, but on a windows machine and cannot find such "T/roboeletric" folder. I have deleted folders on "C:\Users\Develop\.gradle\caches" but had no success.

[André da Silva Medeiros]

I just found out. In my maven settings.xml I added (as specified in maven site)):

<localRepository>${user.home}/.m2/repository</localRepository>

After remove it Roboletric works fine.

[Jens Driller]

Thanks Felipe, worked like a charm! :)