diff --git a/tests/LowStorageTest/Android.mk b/tests/LowStorageTest/Android.mk
new file mode 100644
index 0000000..ab5b9e9
--- /dev/null
+++ b/tests/LowStorageTest/Android.mk
@@ -0,0 +1,25 @@
+# Copyright (C) 2009 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)
+
+LOCAL_MODULE_TAGS := tests
+LOCAL_CERTIFICATE := platform
+
+LOCAL_SRC_FILES := $(call all-subdir-java-files)
+
+LOCAL_PACKAGE_NAME := lowstoragetest
+
+include $(BUILD_PACKAGE)
diff --git a/tests/LowStorageTest/AndroidManifest.xml b/tests/LowStorageTest/AndroidManifest.xml
new file mode 100644
index 0000000..9d4a63a
--- /dev/null
+++ b/tests/LowStorageTest/AndroidManifest.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.android.lowstoragetest">
+    <application android:label="LowStorageTest">
+        <activity android:name="LowStorageTest"
+                  android:theme="@android:style/Theme.Black.NoTitleBar">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+</manifest>
\ No newline at end of file
diff --git a/tests/LowStorageTest/res/layout/main.xml b/tests/LowStorageTest/res/layout/main.xml
new file mode 100644
index 0000000..cc99102
--- /dev/null
+++ b/tests/LowStorageTest/res/layout/main.xml
@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2009 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.
+-->
+<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    android:stretchColumns="1">
+
+    <TextView
+        android:text="@string/total_storage"
+        android:gravity="left"
+        android:padding="3dip" />
+
+    <TextView
+        android:id="@+id/totalsize"
+        android:gravity="left"
+        android:padding="3dip" />
+
+    <View
+        android:layout_height="2dip"
+        android:background="#FF909090" />
+
+    <TextView
+        android:layout_column="1"
+        android:gravity="left"
+        android:text="@string/available_storage"
+        android:padding="3dip" />
+
+    <TextView
+        android:id="@+id/freesize"
+        android:gravity="left"
+        android:padding="3dip" />
+
+    <TextView
+        android:layout_column="1"
+        android:gravity="left"
+        android:textSize="18sp"
+        android:text="@string/status"
+        android:padding="3dip" />
+
+    <TextView
+        android:layout_column="1"
+        android:gravity="left"
+        android:textSize="18sp"
+        android:id="@+id/status"
+        android:text="@string/eat_up_storage"
+        android:padding="3dip" />
+
+    <View
+        android:layout_height="2dip"
+        android:background="#FF909090" />
+
+    <Button 
+        android:id="@+id/button_run"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/run_text"
+        android:layout_alignParentRight="true" />
+
+</TableLayout>
\ No newline at end of file
diff --git a/tests/LowStorageTest/res/values/strings.xml b/tests/LowStorageTest/res/values/strings.xml
new file mode 100644
index 0000000..93d9876
--- /dev/null
+++ b/tests/LowStorageTest/res/values/strings.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright (C) 2009 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.
+-->
+<resources xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+    <string name="total_storage">"Total Storage Size ..."</string>
+    <string name="available_storage">"Available Storage Size ..."</string>
+    <string name="eat_up_storage">"Please Wait..."</string>
+    <string name="status">"Status"</string>
+    <string name="run_text">"Start"</string>
+</resources>
diff --git a/tests/LowStorageTest/src/com/android/lowstoragetest/LowStorageTest.java b/tests/LowStorageTest/src/com/android/lowstoragetest/LowStorageTest.java
new file mode 100644
index 0000000..9f297aa
--- /dev/null
+++ b/tests/LowStorageTest/src/com/android/lowstoragetest/LowStorageTest.java
@@ -0,0 +1,132 @@
+/*
+ * Copyright (C) 2009 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.lowstoragetest;
+
+import android.app.Activity;
+import android.content.Context;
+
+import android.os.Bundle;
+import android.os.Environment;
+import android.os.StatFs;
+import android.util.Log;
+import android.view.KeyEvent;
+import android.view.View;
+import android.view.View.OnClickListener;
+import java.io.File;
+import java.io.FileOutputStream;
+import android.widget.TextView;
+import android.widget.Button;
+
+public class LowStorageTest extends Activity {
+    static final String TAG = "DiskFullTest";
+    static final long WAIT_FOR_FINISH = 5 * 60 * 60;
+    static final int NO_OF_BLOCKS_TO_FILL = 1000;
+    static final int BYTE_SIZE = 1024;
+    static final int WAIT_FOR_SYSTEM_UPDATE = 10000;
+
+    private int mBlockSize = 0;
+    private final Object fillUpDone = new Object();
+
+    /** Called when the activity is first created. */
+    @Override
+    public void onCreate(Bundle icicle) {
+        super.onCreate(icicle);
+        setContentView(R.layout.main);
+
+        // Update the current data info
+        File path = Environment.getDataDirectory();
+        StatFs stat = new StatFs(path.getPath());
+        int totalBlocks = stat.getBlockCount();
+        mBlockSize = (int) (stat.getBlockSize());
+        TextView startSizeTextView = (TextView) findViewById(R.id.totalsize);
+        startSizeTextView.setText(Long.toString((totalBlocks * mBlockSize) / BYTE_SIZE));
+        Button button = (Button) findViewById(R.id.button_run);
+        button.setOnClickListener(mStartListener);
+    }
+
+    View.OnClickListener mStartListener = new OnClickListener() {
+        public void onClick(View v) {
+            fillDataAndUpdateInfo();
+        }
+    };
+
+    public void fillDataAndUpdateInfo() {
+        updateInfo(this);
+    }
+
+    // Fill up 100% of the data partition
+    public void fillupdisk(Context context) {
+        final Context contextfill = context;
+        new Thread() {
+            @Override
+            public void run() {
+                try {
+                    // Fill up all the memory
+                    File path = Environment.getDataDirectory();
+                    StatFs stat = new StatFs(path.getPath());
+                    int totalBlocks = stat.getBlockCount();
+                    int noOfBlockToFill = stat.getAvailableBlocks();
+                    FileOutputStream fs =
+                            contextfill.openFileOutput("testdata", Context.MODE_APPEND);
+                    for (int i = 0; i < (noOfBlockToFill / NO_OF_BLOCKS_TO_FILL); i++) {
+                        byte buf[] = new byte[mBlockSize * NO_OF_BLOCKS_TO_FILL];
+                        fs.write(buf);
+                        fs.flush();
+                    }
+
+                    // Fill up the last few block
+                    byte buf[] = new byte[(noOfBlockToFill % NO_OF_BLOCKS_TO_FILL) * mBlockSize];
+                    fs.write(buf);
+                    fs.flush();
+                    fs.close();
+
+                    // Finished, update the info
+                    synchronized (fillUpDone) {
+                        fillUpDone.notify();
+                    }
+                } catch (Exception e) {
+                    Log.v(TAG, e.toString());
+                }
+            }
+        }.start();
+    }
+
+    public void updateInfo(Context context) {
+        fillupdisk(this);
+        synchronized (fillUpDone) {
+            try {
+                fillUpDone.wait(WAIT_FOR_FINISH);
+            } catch (Exception e) {
+                Log.v(TAG, "wait was interrupted.");
+            }
+        }
+        try {
+            // The stat didn't relect the correct data right away
+            // put some extra time to make sure if get the right size.
+            Thread.sleep(WAIT_FOR_SYSTEM_UPDATE);
+            File path = Environment.getDataDirectory();
+            StatFs stat = new StatFs(path.getPath());
+            long availableBlocks = stat.getAvailableBlocks();
+            TextView freeSizeTextView = (TextView) findViewById(R.id.freesize);
+            freeSizeTextView.setText(Long.toString((availableBlocks * mBlockSize) / BYTE_SIZE));
+            TextView statusTextView = (TextView) findViewById(R.id.status);
+            statusTextView.setText("Finished. You can start the test now.");
+        } catch (Exception e) {
+            Log.v(TAG, e.toString());
+        }
+    }
+}