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/*
* Copyright (C) 2015 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.providers.settings;
import android.os.SystemClock;
import android.os.UserHandle;
import android.util.Log;
/**
* Performance tests for the SettingContentProvider.
*/
public class SettingsProviderPerformanceTest extends BaseSettingsProviderTest {
private static final String LOG_TAG = "SettingsProviderPerformanceTest";
private static final int ITERATION_COUNT = 100;
private static final int MICRO_SECONDS_IN_MILLISECOND = 1000;
private static final long MAX_AVERAGE_SET_AND_GET_SETTING_DURATION_MILLIS = 20;
public void testSetAndGetPerformanceForGlobalViaFrontEndApi() throws Exception {
// Start with a clean slate.
insertStringViaProviderApi(SETTING_TYPE_GLOBAL,
FAKE_SETTING_NAME, FAKE_SETTING_VALUE, false);
final long startTimeMicro = SystemClock.currentTimeMicro();
try {
for (int i = 0; i < ITERATION_COUNT; i++) {
// Set the setting to its first value.
updateStringViaProviderApiSetting(SETTING_TYPE_GLOBAL, FAKE_SETTING_NAME,
FAKE_SETTING_VALUE);
// Make sure the setting changed.
String firstValue = getStringViaFrontEndApiSetting(SETTING_TYPE_GLOBAL,
FAKE_SETTING_NAME, UserHandle.USER_OWNER);
assertEquals("Setting value didn't change", FAKE_SETTING_VALUE, firstValue);
// Set the setting to its second value.
updateStringViaProviderApiSetting(SETTING_TYPE_GLOBAL, FAKE_SETTING_NAME,
FAKE_SETTING_VALUE_1);
// Make sure the setting changed.
String secondValue = getStringViaFrontEndApiSetting(SETTING_TYPE_GLOBAL,
FAKE_SETTING_NAME, UserHandle.USER_OWNER);
assertEquals("Setting value didn't change", FAKE_SETTING_VALUE_1, secondValue);
}
} finally {
// Clean up.
deleteStringViaProviderApi(SETTING_TYPE_GLOBAL, FAKE_SETTING_NAME);
}
final long elapsedTimeMicro = SystemClock.currentTimeMicro() - startTimeMicro;
final long averageTimePerIterationMillis = (long) ((((float) elapsedTimeMicro)
/ ITERATION_COUNT) / MICRO_SECONDS_IN_MILLISECOND);
Log.i(LOG_TAG, "Average time to set and get setting via provider APIs: "
+ averageTimePerIterationMillis + " ms");
assertTrue("Setting and getting a settings takes too long.", averageTimePerIterationMillis
< MAX_AVERAGE_SET_AND_GET_SETTING_DURATION_MILLIS);
}
public void testSetAndGetPerformanceForGlobalViaProviderApi() throws Exception {
// Start with a clean slate.
deleteStringViaProviderApi(SETTING_TYPE_GLOBAL, FAKE_SETTING_NAME);
final long startTimeMicro = SystemClock.currentTimeMicro();
try {
for (int i = 0; i < ITERATION_COUNT; i++) {
// Set the setting to its first value.
setStringViaFrontEndApiSetting(SETTING_TYPE_GLOBAL, FAKE_SETTING_NAME,
FAKE_SETTING_VALUE, UserHandle.USER_OWNER);
// Make sure the setting changed.
String firstValue = getStringViaFrontEndApiSetting(SETTING_TYPE_GLOBAL,
FAKE_SETTING_NAME, UserHandle.USER_OWNER);
assertEquals("Setting value didn't change", FAKE_SETTING_VALUE, firstValue);
// Set the setting to its second value.
setStringViaFrontEndApiSetting(SETTING_TYPE_GLOBAL, FAKE_SETTING_NAME,
FAKE_SETTING_VALUE_1, UserHandle.USER_OWNER);
// Make sure the setting changed.
String secondValue = getStringViaFrontEndApiSetting(SETTING_TYPE_GLOBAL,
FAKE_SETTING_NAME, UserHandle.USER_OWNER);
assertEquals("Setting value didn't change", FAKE_SETTING_VALUE_1, secondValue);
}
} finally {
// Clean up.
deleteStringViaProviderApi(SETTING_TYPE_GLOBAL, FAKE_SETTING_NAME);
}
final long elapsedTimeMicro = SystemClock.currentTimeMicro() - startTimeMicro;
final long averageTimePerIterationMillis = (long) ((((float) elapsedTimeMicro)
/ ITERATION_COUNT) / MICRO_SECONDS_IN_MILLISECOND);
Log.i(LOG_TAG, "Average time to set and get setting via front-eng APIs: "
+ averageTimePerIterationMillis + " ms");
assertTrue("Setting and getting a settings takes too long.", averageTimePerIterationMillis
< MAX_AVERAGE_SET_AND_GET_SETTING_DURATION_MILLIS);
}
}
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