Running a unit test in Android Studio yields an exception

[Rainer Burgstaller]

I have unit tests now working in Gradle, but when I try and run an individual test class in Android Studio (by right Click, run->ClassNameTest) then I get the following exception

/Library/Java/JavaVirtualMachines/jdk1.7.0_10.jdk/Contents/Home/bin/java -ea -Didea.launcher.port=7532 "-Didea.launcher.bin.path=/Applications/Android Studio.app/bin" -Dfile.encoding=UTF-8 -classpath "/Applications/Android Studio.app/lib/idea_rt.jar:/Applications/Android Studio.app/plugins/junit/lib/junit-rt.jar:/Users/rainer/Development/android-sdk-macosx/platforms/android-16/android.jar:/Users/rainer/Development/android-sdk-macosx/add-ons/addon-google_apis-google-16/libs/effects.jar:/Users/rainer/Development/android-sdk-macosx/add-ons/addon-google_apis-google-16/libs/usb.jar:/Users/rainer/Development/android-sdk-macosx/add-ons/addon-google_apis-google-16/libs/maps.jar:/Users/rainer/Development/android-sdk-macosx/platforms/android-16/data/res:/Users/rainer/Development/android-sdk-macosx/tools/support/annotations.jar:/Users/rainer/Documents/workspaces/privat/PtpWorkspace/OfParent/app/build/classes/debug:/Users/rainer/.m2/repository/com/google/android-support-v4/0.1/android-support-v4-0.1.jar:://Users/rainer/Documents/workspaces/privat/PtpWorkspace/OfParent/app/build/exploded-bundles/diego.aar/classes.jar:/Users/rainer/Documents/workspaces/privat/PtpWorkspace/OfParent/libraries/diego/libs/persistence-api-1.0.jar:/Users/rainer/Documents/workspaces/privat/PtpWorkspace/OfParent/app/build/exploded-bundles/diego.aar/libs/persistence-api-1.0.jar:/Users/rainer/Development/android-sdk-macosx/extras/android/m2repository/com/android/support/support-v4/13.0.0/support-v4-13.0.0.jar" com.intellij.rt.execution.application.AppMain com.intellij.rt.execution.junit.JUnitStarter -ideVersion5 com.myclass.WebdavSyncherTest

Exception in thread "main" java.lang.NoClassDefFoundError: junit/textui/ResultPrinter

at java.lang.Class.forName0(Native Method)

at java.lang.Class.forName(Class.java:186)

at com.intellij.rt.execution.application.AppMain.main(AppMain.java:113)

Caused by: java.lang.ClassNotFoundException: junit.textui.ResultPrinter

at java.net.URLClassLoader$1.run(URLClassLoader.java:366)

at java.net.URLClassLoader$1.run(URLClassLoader.java:355)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:354)

at java.lang.ClassLoader.loadClass(ClassLoader.java:423)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)

at java.lang.ClassLoader.loadClass(ClassLoader.java:356)

... 3 more

Process finished with exit code 1

Another thing that is weird is that I get 2 Unit test options, one with the android icon (which yields "no test suites found") and another one which results in the before mentioned exception.

cheers

- Rainer

[Siva Velusamy]

Yes, unit tests don't work properly from the IDE yet. We'll fix them shortly.

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[Arild Jacobsen]

By my estimation, it's been more than a "short" time since June 14th and yet I still encounter the same error message when trying to run junit tests from Android Studio. I really am frustrated by how many hoops I have to jump through to be able to run junit tests on my android projects... and don't talk to me about instrumentation, you can't do proper tdd with turnaround that slow.

[Siva Velusamy]

Sorry, my response was for instrumentation tests, which are now
supported. Unit tests won't be there until gradle supports it, and
that will take a while (see other threads in the mailing list
regarding this).