do not merge: Cherry pick change I878192090 from master.

LOCAL_PATH:= $(call my-dir)

include $(CLEAR_VARS)

# We only want this apk build for tests.

LOCAL_MODULE_TAGS := tests

# Include all test java files.

LOCAL_SRC_FILES := \

	$(call all-java-files-under, src)

LOCAL_DX_FLAGS := --core-library

LOCAL_STATIC_JAVA_LIBRARIES := core-tests-supportlib android-common frameworks-core-util-lib

LOCAL_JAVA_LIBRARIES := android.test.runner

LOCAL_PACKAGE_NAME := FrameworksCoreSystemPropertiesTests

LOCAL_CERTIFICATE := platform

include $(BUILD_PACKAGE)

<?xml version="1.0" encoding="utf-8"?>

<!-- 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.

-->

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

          android:installLocation="internalOnly"

          package="com.android.frameworks.coretests.systemproperties"

          android:sharedUserId="android.uid.system">

    <application>

        <uses-library android:name="android.test.runner" />

    </application>

    <instrumentation android:name="android.test.InstrumentationTestRunner"

            android:targetPackage="com.android.frameworks.coretests"

            android:label="Frameworks Core Tests" />

</manifest>

#!/bin/bash

while [[ $# -gt 0 ]]; do

  case "$1" in

  --rebuild ) echo Rebuild && rebuild=true;;

  * ) com_opts+=($1);;

  esac

  shift

done

if [[ -z $ANDROID_PRODUCT_OUT && $rebuilld == true ]]; then

  echo You must lunch before running this test.

  exit 0

fi

if [[ $rebuild == true ]]; then

  make -j4 FrameworksCoreSystemPropertiesTests

  TESTAPP=${ANDROID_PRODUCT_OUT}/data/app/FrameworksCoreSystemPropertiesTests.apk

fi

adb shell am instrument -w -e class android.os.SystemPropertiesTest com.android.frameworks.coretests.systemproperties/android.test.InstrumentationTestRunner

/*

 * 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 android.os;

import junit.framework.TestCase;

import android.os.SystemProperties;

import android.test.suitebuilder.annotation.SmallTest;

public class SystemPropertiesTest extends TestCase {

    private static final String KEY = "sys.testkey";

    @SmallTest

    public void testLongSequencialProperties() throws Exception {

        for (int i = 0; i < 100; ++i) {

            SystemProperties.set(KEY, Long.toString(i));

            long ret = SystemProperties.getLong(KEY, -1);

            assertEquals(i, ret);

        }

    }

    @SmallTest

    public void testProperties() throws Exception {

        String value;

        SystemProperties.set(KEY, "");

        value = SystemProperties.get(KEY, "default");

        assertEquals("default", value);

        SystemProperties.set(KEY, "SA");

        value = SystemProperties.get(KEY, "default");

        assertEquals("SA", value);

        value = SystemProperties.get(KEY);

        assertEquals("SA", value);

        SystemProperties.set(KEY, "");

        value = SystemProperties.get(KEY, "default");

        assertEquals("default", value);

        value = SystemProperties.get(KEY);

        assertEquals("", value);

    }

}