Android Google Maps Test（JUnit4 + Robolectric 3.0）无法运行； 找不到资源异常

Question

Using JUnit4 and Robolectric 3.0_rc3 to test a fragment with SupportMapFragment, I cannot get the a test to run. Can you see why?

The map fragment is instantiated in onCreateView of the fragment. The test includes just this:

MyFragment subject = new MyFragment();
SupportFragmentTestUtil.startVisibleFragment(subject);

Along with robolectric core, I have included robolectric:shadows-maps and robolectric:shadows-support-v4 in my build.gradle file. All the other tests in my project work fine. Here's the relevant part of the error stack:

android.content.res.Resources$NotFoundException: String resource ID #0x7f0c001b
    at android.content.res.Resources.getText(Resources.java:239)
    at org.robolectric.shadows.ShadowResources.getText(ShadowResources.java:358)
    at android.content.res.Resources.getText(Resources.java)
    at android.content.res.Resources.getString(Resources.java:325)
    at com.google.android.gms.common.internal.zzf.zzh(Unknown Source)
    at com.google.android.gms.common.internal.zzf.zzh(Unknown Source)
    at com.google.android.gms.dynamic.zza.zzb(Unknown Source)
    at com.google.android.gms.dynamic.zza.zzb(Unknown Source)
    at com.google.android.gms.dynamic.zza.zza(Unknown Source)
    at com.google.android.gms.dynamic.zza.zza(Unknown Source)
    at com.google.android.gms.dynamic.zza.onCreateView(Unknown Source)
    at com.google.android.gms.dynamic.zza.onCreateView(Unknown Source)
    at com.google.android.gms.maps.SupportMapFragment.onCreateView(Unknown Source)
    at com.google.android.gms.maps.SupportMapFragment.onCreateView(Unknown Source)
    at android.support.v4.app.Fragment.performCreateView(Fragment.java:1500)
    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:938)
    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1115)
    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1097)
    at android.support.v4.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManager.java:1895)
    at android.support.v4.app.Fragment.performActivityCreated(Fragment.java:1514)
    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:958)
    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1115)
    at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)
    at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1478)
    at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:446)
    at android.os.Handler.handleCallback(Handler.java:730)
    at android.os.Handler.dispatchMessage(Handler.java:92)
    at org.robolectric.shadows.ShadowMessageQueue.dispatchMessage(ShadowMessageQueue.java:130)
    at org.robolectric.shadows.ShadowMessageQueue.access$100(ShadowMessageQueue.java:29)
    at org.robolectric.shadows.ShadowMessageQueue$1.run(ShadowMessageQueue.java:95)
    at org.robolectric.util.Scheduler.runOrQueueRunnable(Scheduler.java:230)
    at org.robolectric.util.Scheduler.postAtFrontOfQueue(Scheduler.java:98)
    at org.robolectric.shadows.ShadowMessageQueue.enqueueMessage(ShadowMessageQueue.java:114)
    at android.os.MessageQueue.enqueueMessage(MessageQueue.java)
    at android.os.Handler.enqueueMessage(Handler.java:623)
    at android.os.Handler.sendMessageAtTime(Handler.java:592)
    at android.os.Handler.sendMessageDelayed(Handler.java:563)
    at android.os.Handler.post(Handler.java:323)
    at android.support.v4.app.FragmentManagerImpl.enqueueAction(FragmentManager.java:1384)
    at android.support.v4.app.BackStackRecord.commitInternal(BackStackRecord.java:595)
    at android.support.v4.app.BackStackRecord.commit(BackStackRecord.java:574)
    at org.robolectric.util.SupportFragmentTestUtil.startVisibleFragment(SupportFragmentTestUtil.java:24)

The resource ID refers to a google play asset called common_google_play_services_install_text_phone. The asset is generated in my project's directory, and also exists in com.google.android.gms, com.google.android.gms.location, and com.google.android.gms.maps.

Any help would be greatly appreciated!

Answer 1

Problem solved. It appears that the configuration was outdated after updating Robolectric from 2.4 to 3.0. Following this article helped a lot:

http://evendanan.net/robolectric/unit-test/2015/04/09/migrating-to-robolectric-v3/