/* * 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. */ package com.android.connectivitymanagertest.stress; import com.android.connectivitymanagertest.ConnectivityManagerStressTestRunner; import com.android.connectivitymanagertest.ConnectivityManagerTestActivity; import com.android.connectivitymanagertest.UtilHelper; import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo.State; import android.net.wifi.ScanResult; import android.net.wifi.WifiConfiguration; import android.net.wifi.WifiConfiguration.IpAssignment; import android.net.wifi.WifiConfiguration.KeyMgmt; import android.net.wifi.WifiConfiguration.ProxySettings; import android.net.wifi.WifiManager; import android.os.Environment; import android.os.PowerManager; import android.os.IPowerManager; import android.os.SystemClock; import android.os.ServiceManager; import android.provider.Settings; import android.test.ActivityInstrumentationTestCase2; import android.test.suitebuilder.annotation.LargeTest; import android.util.Log; import java.io.BufferedWriter; import java.io.File; import java.io.FileWriter; import java.io.IOException; import java.util.List; /** * Stress Wi-Fi connection, scanning and reconnection after sleep. * * To run this stress test suite, type * adb shell am instrument -e class com.android.connectivitymanagertest.stress.WifiStressTest * -w com.android.connectivitymanagertest/.ConnectivityManagerStressTestRunner */ public class WifiStressTest extends ActivityInstrumentationTestCase2 { private final static String TAG = "WifiStressTest"; /** * Wi-Fi idle time for default sleep policy */ private final static long WIFI_IDLE_MS = 60 * 1000; /** * Delay after issuing wifi shutdown. * The framework keep driver up for at leat 2 minutes to avoid problems * that a quick shutdown could cause on wext driver and protentially * on cfg based driver */ private final static long WIFI_SHUTDOWN_DELAY = 2 * 60 * 1000; private final static String OUTPUT_FILE = "WifiStressTestOutput.txt"; private ConnectivityManagerTestActivity mAct; private int mReconnectIterations; private int mWifiSleepTime; private int mScanIterations; private String mSsid; private String mPassword; private ConnectivityManagerStressTestRunner mRunner; private BufferedWriter mOutputWriter = null; public WifiStressTest() { super(ConnectivityManagerTestActivity.class); } @Override public void setUp() throws Exception { super.setUp(); mAct = getActivity(); mRunner = (ConnectivityManagerStressTestRunner) getInstrumentation(); mReconnectIterations = mRunner.mReconnectIterations; mSsid = mRunner.mReconnectSsid; mPassword = mRunner.mReconnectPassword; mScanIterations = mRunner.mScanIterations; mWifiSleepTime = mRunner.mSleepTime; log(String.format("mReconnectIterations(%d), mSsid(%s), mPassword(%s)," + "mScanIterations(%d), mWifiSleepTime(%d)", mReconnectIterations, mSsid, mPassword, mScanIterations, mWifiSleepTime)); mOutputWriter = new BufferedWriter(new FileWriter(new File( Environment.getExternalStorageDirectory(), OUTPUT_FILE), true)); mAct.turnScreenOn(); if (!mAct.mWifiManager.isWifiEnabled()) { log("Enable wi-fi before stress tests."); if (!mAct.enableWifi()) { tearDown(); fail("enable wifi failed."); } sleep(ConnectivityManagerTestActivity.SHORT_TIMEOUT, "Interruped while waiting for wifi on"); } } @Override public void tearDown() throws Exception { log("tearDown()"); if (mOutputWriter != null) { mOutputWriter.close(); } super.tearDown(); } private void writeOutput(String s) { log("write message: " + s); if (mOutputWriter == null) { log("no writer attached to file " + OUTPUT_FILE); return; } try { mOutputWriter.write(s + "\n"); mOutputWriter.flush(); } catch (IOException e) { log("failed to write output."); } } public void log(String message) { Log.v(TAG, message); } private void sleep(long sometime, String errorMsg) { try { Thread.sleep(sometime); } catch (InterruptedException e) { fail(errorMsg); } } /** * Stress Wifi Scanning * TODO: test the scanning quality for each frequency band */ @LargeTest public void testWifiScanning() { int scanTimeSum = 0; int i; int ssidAppearInScanResultsCount = 0; // count times of given ssid appear in scan results. for (i = 0; i < mScanIterations; i++) { log("testWifiScanning: iteration: " + i); int averageScanTime = 0; if (i > 0) { averageScanTime = scanTimeSum/i; } writeOutput(String.format("iteration %d out of %d", i, mScanIterations)); writeOutput(String.format("average scanning time is %d", averageScanTime)); writeOutput(String.format("ssid appear %d out of %d scan iterations", ssidAppearInScanResultsCount, i)); long startTime = System.currentTimeMillis(); mAct.scanResultAvailable = false; assertTrue("start scan failed", mAct.mWifiManager.startScanActive()); while (true) { if ((System.currentTimeMillis() - startTime) > ConnectivityManagerTestActivity.WIFI_SCAN_TIMEOUT) { fail("Wifi scanning takes more than " + ConnectivityManagerTestActivity.WIFI_SCAN_TIMEOUT + " ms"); } synchronized(mAct) { try { mAct.wait(ConnectivityManagerTestActivity.WAIT_FOR_SCAN_RESULT); } catch (InterruptedException e) { e.printStackTrace(); } if (mAct.scanResultAvailable) { long scanTime = (System.currentTimeMillis() - startTime); scanTimeSum += scanTime; break; } } } if ((mAct.mWifiManager.getScanResults() == null) || (mAct.mWifiManager.getScanResults().size() <= 0)) { fail("Scan results are empty "); } List netList = mAct.mWifiManager.getScanResults(); if (netList != null) { log("size of scan result list: " + netList.size()); for (int s = 0; s < netList.size(); s++) { ScanResult sr= netList.get(s); log(String.format("scan result for %s is: %s", sr.SSID, sr.toString())); log(String.format("signal level for %s is %d ", sr.SSID, sr.level)); if (sr.SSID.equals(mSsid)) { ssidAppearInScanResultsCount += 1; log("Number of times " + mSsid + " appear in the scan list: " + ssidAppearInScanResultsCount); break; } } } } if (i == mScanIterations) { writeOutput(String.format("iteration %d out of %d", i, mScanIterations)); writeOutput(String.format("average scanning time is %d", scanTimeSum/mScanIterations)); writeOutput(String.format("ssid appear %d out of %d scan iterations", ssidAppearInScanResultsCount, mScanIterations)); } } // Stress Wifi reconnection to secure net after sleep @LargeTest public void testWifiReconnectionAfterSleep() { int value = Settings.System.getInt(mRunner.getContext().getContentResolver(), Settings.System.WIFI_SLEEP_POLICY, -1); if (value < 0) { Settings.System.putInt(mRunner.getContext().getContentResolver(), Settings.System.WIFI_SLEEP_POLICY, Settings.System.WIFI_SLEEP_POLICY_DEFAULT); log("set wifi sleep policy to default value"); } Settings.Secure.putLong(mRunner.getContext().getContentResolver(), Settings.Secure.WIFI_IDLE_MS, WIFI_IDLE_MS); // Connect to a Wi-Fi network WifiConfiguration config = new WifiConfiguration(); config.SSID = mSsid; config.allowedKeyManagement.set(KeyMgmt.WPA_PSK); if (mPassword.matches("[0-9A-Fa-f]{64}")) { config.preSharedKey = mPassword; } else { config.preSharedKey = '"' + mPassword + '"'; } config.ipAssignment = IpAssignment.DHCP; config.proxySettings = ProxySettings.NONE; assertTrue("Failed to connect to Wi-Fi network: " + mSsid, mAct.connectToWifiWithConfiguration(config)); assertTrue(mAct.waitForWifiState(WifiManager.WIFI_STATE_ENABLED, ConnectivityManagerTestActivity.SHORT_TIMEOUT)); assertTrue(mAct.waitForNetworkState(ConnectivityManager.TYPE_WIFI, State.CONNECTED, ConnectivityManagerTestActivity.LONG_TIMEOUT)); // Run ping test to verify the data connection assertTrue("Wi-Fi is connected, but no data connection.", mAct.pingTest(null)); int i; long sum = 0; for (i = 0; i < mReconnectIterations; i++) { // 1. Put device into sleep mode // 2. Wait for the device to sleep for sometime, verify wi-fi is off and mobile is on. // 3. Maintain the sleep mode for some time, // 4. Verify the Wi-Fi is still off, and data is on // 5. Wake up the device, verify Wi-Fi is enabled and connected. writeOutput(String.format("iteration %d out of %d", i, mReconnectIterations)); log("iteration: " + i); mAct.turnScreenOff(); PowerManager pm = (PowerManager)mRunner.getContext().getSystemService(Context.POWER_SERVICE); assertFalse(pm.isScreenOn()); sleep(WIFI_IDLE_MS + WIFI_SHUTDOWN_DELAY, "Interruped while wait for wifi to be idle"); assertTrue("Wait for Wi-Fi to idle timeout", mAct.waitForNetworkState(ConnectivityManager.TYPE_WIFI, State.DISCONNECTED, 6 * ConnectivityManagerTestActivity.SHORT_TIMEOUT)); if (!UtilHelper.isWifiOnly()) { // use long timeout as the pppd startup may take several retries. assertTrue("Wait for cellular connection timeout", mAct.waitForNetworkState(ConnectivityManager.TYPE_MOBILE, State.CONNECTED, 2 * ConnectivityManagerTestActivity.LONG_TIMEOUT)); } sleep(mWifiSleepTime, "Interrupted while device is in sleep mode"); // Verify the wi-fi is still off and data connection is on assertEquals("Wi-Fi is reconnected", State.DISCONNECTED, mAct.mCM.getNetworkInfo(ConnectivityManager.TYPE_WIFI).getState()); if (!UtilHelper.isWifiOnly()) { assertEquals("Cellular connection is down", State.CONNECTED, mAct.mCM.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).getState()); assertTrue("Mobile is connected, but no data connection.", mAct.pingTest(null)); } // Turn screen on again mAct.turnScreenOn(); // Measure the time for Wi-Fi to get connected long startTime = System.currentTimeMillis(); assertTrue("Wait for Wi-Fi enable timeout after wake up", mAct.waitForWifiState(WifiManager.WIFI_STATE_ENABLED, ConnectivityManagerTestActivity.SHORT_TIMEOUT)); assertTrue("Wait for Wi-Fi connection timeout after wake up", mAct.waitForNetworkState(ConnectivityManager.TYPE_WIFI, State.CONNECTED, 6 * ConnectivityManagerTestActivity.LONG_TIMEOUT)); long connectionTime = System.currentTimeMillis() - startTime; sum += connectionTime; log("average reconnection time is: " + sum/(i+1)); assertTrue("Reconnect to Wi-Fi network, but no data connection.", mAct.pingTest(null)); } if (i == mReconnectIterations) { writeOutput(String.format("iteration %d out of %d", i, mReconnectIterations)); } } }