diff --git a/Android.mk b/Android.mk
index 73698a7..844f052 100644
--- a/Android.mk
+++ b/Android.mk
@@ -23,7 +23,8 @@
 
 LOCAL_STATIC_JAVA_LIBRARIES := android-common android-support-v13
 
-LOCAL_SRC_FILES := $(call all-subdir-java-files) $(call all-renderscript-files-under, src)
+LOCAL_SRC_FILES := $(call all-java-files-under, src) $(call all-renderscript-files-under, src)
+
 
 LOCAL_PACKAGE_NAME := Launcher2
 LOCAL_CERTIFICATE := shared
@@ -34,4 +35,6 @@
 
 include $(BUILD_PACKAGE)
 
+include $(call all-subdir-makefiles)
+
 endif
diff --git a/tests/Android.mk b/tests/Android.mk
new file mode 100644
index 0000000..84e9559
--- /dev/null
+++ b/tests/Android.mk
@@ -0,0 +1,15 @@
+# Copyright (C) 2011 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+include $(call all-subdir-makefiles)
diff --git a/tests/stress/Android.mk b/tests/stress/Android.mk
new file mode 100644
index 0000000..da22bb9
--- /dev/null
+++ b/tests/stress/Android.mk
@@ -0,0 +1,33 @@
+# Copyright (C) 2011 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+# We only want this apk build for tests.
+LOCAL_MODULE_TAGS := tests
+
+LOCAL_JAVA_LIBRARIES := android.test.runner
+
+LOCAL_SRC_FILES := $(call all-java-files-under, src)
+
+LOCAL_PACKAGE_NAME := LauncherRotationStressTest
+
+LOCAL_CERTIFICATE := shared
+
+LOCAL_INSTRUMENTATION_FOR := Launcher2
+
+LOCAL_SDK_VERSION := current
+
+include $(BUILD_PACKAGE)
diff --git a/tests/stress/AndroidManifest.xml b/tests/stress/AndroidManifest.xml
new file mode 100644
index 0000000..ce5dbe4
--- /dev/null
+++ b/tests/stress/AndroidManifest.xml
@@ -0,0 +1,31 @@
+<?xml version="2.0" encoding="utf-8"?>
+<!-- Copyright (C) 2010 The Android Open Source Project
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.android.launcher.stress.launcherrotation">
+
+    <uses-sdk android:minSdkVersion="8" />
+
+    <application>
+        <uses-library android:name="android.test.runner" />
+    </application>
+
+    <instrumentation
+        android:name="android.test.InstrumentationTestRunner"
+        android:targetPackage="com.android.launcher"
+        android:label="Rotation stress test using Launcher2">
+    </instrumentation>
+</manifest>
diff --git a/tests/stress/src/com/android/launcher2/stress/LauncherRotationStressTest.java b/tests/stress/src/com/android/launcher2/stress/LauncherRotationStressTest.java
new file mode 100644
index 0000000..3d787f2
--- /dev/null
+++ b/tests/stress/src/com/android/launcher2/stress/LauncherRotationStressTest.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.launcher2.stress;
+
+
+import com.android.launcher2.Launcher;
+
+import android.content.pm.ActivityInfo;
+import android.os.SystemClock;
+import android.test.ActivityInstrumentationTestCase2;
+import android.test.TimedTest;
+import android.util.Log;
+
+/**
+ * Run rotation stress test using Launcher2 for 50 iterations.
+ */
+public class LauncherRotationStressTest extends ActivityInstrumentationTestCase2<Launcher> {
+
+    private static final int NUM_ITERATIONS = 50;
+    private static final String LOG_TAG = "LauncherRotationStressTest";
+
+    public LauncherRotationStressTest() {
+        super(Launcher.class);
+    }
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+    }
+
+    @Override
+    protected void tearDown() throws Exception {
+        super.tearDown();
+    }
+
+    @TimedTest(includeDetailedStats=true)
+    public void testLauncherRotationStress() throws Exception {
+        Launcher launcher = getActivity();
+        for (int i = 0; i < NUM_ITERATIONS; i++) {
+            Log.i(LOG_TAG, "Starting LauncherRotationStressTest " + (i + 1) + " of " +
+                  NUM_ITERATIONS);
+            getInstrumentation().waitForIdleSync();
+            SystemClock.sleep(500);
+            launcher.setRequestedOrientation(
+                    ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
+            getInstrumentation().waitForIdleSync();
+            SystemClock.sleep(500);
+            launcher.setRequestedOrientation(
+                    ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
+            Log.i(LOG_TAG, "Finished LauncherRotationStressTest " + (i + 1) + " of " +
+                  NUM_ITERATIONS);
+        }
+    }
+}