Mobile Spec Camera test can't find the photo, keeps finding directory

I tried to accept a pull request from a user, and I have no idea if it works, because it appears that the Camera API is broken and it doesn't pass the manual mobile-spec tests. I keep getting this error on the Nexus 7 running Lollipop, Nexus 6 running Lollipop and the Samsung Galaxy S4 running 4.4.2. (Log from S4):

W/System.err( 7822): java.io.FileNotFoundException: Is a directory
W/System.err( 7822): at android.os.Parcel.openFileDescriptor(Native Method)
W/System.err( 7822): at android.os.ParcelFileDescriptor.openInternal(ParcelFileDescriptor.java:252)
W/System.err( 7822): at android.os.ParcelFileDescriptor.open(ParcelFileDescriptor.java:198)
W/System.err( 7822): at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:902)
W/System.err( 7822): at android.content.ContentResolver.openOutputStream(ContentResolver.java:672)
W/System.err( 7822): at android.content.ContentResolver.openOutputStream(ContentResolver.java:648)
W/System.err( 7822): at org.apache.cordova.camera.CameraLauncher.processResultFromCamera(CameraLauncher.java:418)
W/System.err( 7822): at org.apache.cordova.camera.CameraLauncher.onActivityResult(CameraLauncher.java:610)
W/System.err( 7822): at org.apache.cordova.CordovaInterfaceImpl.onActivityResult(CordovaInterfaceImpl.java:90)
W/System.err( 7822): at org.apache.cordova.CordovaActivity.onActivityResult(CordovaActivity.java:319)
W/System.err( 7822): at android.app.Activity.dispatchActivityResult(Activity.java:5618)
W/System.err( 7822): at android.app.ActivityThread.deliverResults(ActivityThread.java:3547)
W/System.err( 7822): at android.app.ActivityThread.handleSendResult(ActivityThread.java:3594)
W/System.err( 7822): at android.app.ActivityThread.access$1400(ActivityThread.java:161)
W/System.err( 7822): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1313)
W/System.err( 7822): at android.os.Handler.dispatchMessage(Handler.java:102)
W/System.err( 7822): at android.os.Looper.loop(Looper.java:157)
W/System.err( 7822): at android.app.ActivityThread.main(ActivityThread.java:5356)
W/System.err( 7822): at java.lang.reflect.Method.invokeNative(Native Method)
W/System.err( 7822): at java.lang.reflect.Method.invoke(Method.java:515)
W/System.err( 7822): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1265)
W/System.err( 7822): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1081)
W/System.err( 7822): at dalvik.system.NativeStart.main(Native Method)

I have no idea how we're handling files these days, and I think that's the main probelm with out camera plugin. Once we take the image and save it, the code just breaks, and it would be good if we could somehow bundle some JUnit tests with this to make sure that the camera actually stays working, since it's really brittle right now.