CameraListener listener2 = mock( CameraListener.class );
camera.addCameraListener( listener1 );
camera.addCameraListener( listener2 );
camera.takePicture( createOptions() );
JsonObject properties = new JsonObject();
properties.add( "image", encodedImage );
environment.dispatchNotifyOnServiceObject( "ImageSelection", properties );
verify( listener1 ).receivedPicture( any( Image.class ) );
verify( listener2 ).receivedPicture( any( Image.class ) );
}