change how assets are copied out of apk

Currently test code use getActivity to get DRT's assets. However
the side effect is that this will actually launch the activity.
This is not affecting any tests yet, however there are cleaner
ways to do this. The instrumentation framework provides a
getTargetContext call which will give access to app under test's
context, and therefore granting access to its assets.

Change-Id: I0560b0fa5681f80bcb9296beec3fd0549c40cc8e

1 files changed, 7 insertions, 3 deletions

diff --git a/tests/DumpRenderTree/src/com/android/dumprendertree/LayoutTestsAutoTest.java b/tests/DumpRenderTree/src/com/android/dumprendertree/LayoutTestsAutoTest.java
index 132f17ad0d55..8aa3c690b379 100644
--- a/tests/DumpRenderTree/src/com/android/dumprendertree/LayoutTestsAutoTest.java
+++ b/tests/DumpRenderTree/src/com/android/dumprendertree/LayoutTestsAutoTest.java
@@ -20,6 +20,7 @@ import com.android.dumprendertree.TestShellActivity.DumpDataType;
 import com.android.dumprendertree.forwarder.AdbUtils;
 import com.android.dumprendertree.forwarder.ForwardService;
 
+import android.content.Context;
 import android.content.Intent;
 import android.os.Environment;
 import android.test.ActivityInstrumentationTestCase2;
@@ -471,11 +472,14 @@ public class LayoutTestsAutoTest extends ActivityInstrumentationTestCase2<TestSh
 
     public void copyResultsAndRunnerAssetsToCache() {
         try {
-            String out_dir = getActivity().getApplicationContext().getCacheDir().getPath() + "/";
+            Context targetContext = getInstrumentation().getTargetContext();
+            File cacheDir = targetContext.getCacheDir();
 
             for( int i=0; i< LAYOUT_TESTS_RESULTS_REFERENCE_FILES.length; i++) {
-                InputStream in = getActivity().getAssets().open(LAYOUT_TESTS_RESULTS_REFERENCE_FILES[i]);
-                OutputStream out = new FileOutputStream(out_dir + LAYOUT_TESTS_RESULTS_REFERENCE_FILES[i]);
+                InputStream in = targetContext.getAssets().open(
+                        LAYOUT_TESTS_RESULTS_REFERENCE_FILES[i]);
+                OutputStream out = new FileOutputStream(new File(cacheDir,
+                        LAYOUT_TESTS_RESULTS_REFERENCE_FILES[i]));
 
                 byte[] buf = new byte[2048];
                 int len;