1 /* 2 * Copyright (C) 2010, The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.connectivitymanagertest.stress; 18 19 import com.android.connectivitymanagertest.ConnectivityManagerStressTestRunner; 20 import com.android.connectivitymanagertest.ConnectivityManagerTestActivity; 21 import com.android.connectivitymanagertest.UtilHelper; 22 23 import android.content.Context; 24 import android.net.ConnectivityManager; 25 import android.net.NetworkInfo.State; 26 import android.net.wifi.ScanResult; 27 import android.net.wifi.WifiConfiguration; 28 import android.net.wifi.WifiConfiguration.IpAssignment; 29 import android.net.wifi.WifiConfiguration.KeyMgmt; 30 import android.net.wifi.WifiConfiguration.ProxySettings; 31 import android.net.wifi.WifiManager; 32 import android.os.Environment; 33 import android.os.PowerManager; 34 import android.os.IPowerManager; 35 import android.os.SystemClock; 36 import android.os.ServiceManager; 37 import android.provider.Settings; 38 import android.test.ActivityInstrumentationTestCase2; 39 import android.test.suitebuilder.annotation.LargeTest; 40 41 import android.util.Log; 42 43 import java.io.BufferedWriter; 44 import java.io.File; 45 import java.io.FileWriter; 46 import java.io.IOException; 47 import java.util.List; 48 49 /** 50 * Stress Wi-Fi connection, scanning and reconnection after sleep. 51 * 52 * To run this stress test suite, type 53 * adb shell am instrument -e class com.android.connectivitymanagertest.stress.WifiStressTest 54 * -w com.android.connectivitymanagertest/.ConnectivityManagerStressTestRunner 55 */ 56 public class WifiStressTest 57 extends ActivityInstrumentationTestCase2<ConnectivityManagerTestActivity> { 58 private final static String TAG = "WifiStressTest"; 59 60 /** 61 * Wi-Fi idle time for default sleep policy 62 */ 63 private final static long WIFI_IDLE_MS = 60 * 1000; 64 65 /** 66 * Delay after issuing wifi shutdown. 67 * The framework keep driver up for at leat 2 minutes to avoid problems 68 * that a quick shutdown could cause on wext driver and protentially 69 * on cfg based driver 70 */ 71 private final static long WIFI_SHUTDOWN_DELAY = 2 * 60 * 1000; 72 73 private final static String OUTPUT_FILE = "WifiStressTestOutput.txt"; 74 private ConnectivityManagerTestActivity mAct; 75 private int mReconnectIterations; 76 private int mWifiSleepTime; 77 private int mScanIterations; 78 private String mSsid; 79 private String mPassword; 80 private ConnectivityManagerStressTestRunner mRunner; 81 private BufferedWriter mOutputWriter = null; 82 83 public WifiStressTest() { 84 super(ConnectivityManagerTestActivity.class); 85 } 86 87 @Override 88 public void setUp() throws Exception { 89 super.setUp(); 90 mAct = getActivity(); 91 mRunner = (ConnectivityManagerStressTestRunner) getInstrumentation(); 92 mReconnectIterations = mRunner.mReconnectIterations; 93 mSsid = mRunner.mReconnectSsid; 94 mPassword = mRunner.mReconnectPassword; 95 mScanIterations = mRunner.mScanIterations; 96 mWifiSleepTime = mRunner.mSleepTime; 97 log(String.format("mReconnectIterations(%d), mSsid(%s), mPassword(%s)," 98 + "mScanIterations(%d), mWifiSleepTime(%d)", mReconnectIterations, mSsid, 99 mPassword, mScanIterations, mWifiSleepTime)); 100 mOutputWriter = new BufferedWriter(new FileWriter(new File( 101 Environment.getExternalStorageDirectory(), OUTPUT_FILE), true)); 102 mAct.turnScreenOn(); 103 if (!mAct.mWifiManager.isWifiEnabled()) { 104 log("Enable wi-fi before stress tests."); 105 if (!mAct.enableWifi()) { 106 tearDown(); 107 fail("enable wifi failed."); 108 } 109 sleep(ConnectivityManagerTestActivity.SHORT_TIMEOUT, 110 "Interruped while waiting for wifi on"); 111 } 112 } 113 114 @Override 115 public void tearDown() throws Exception { 116 log("tearDown()"); 117 if (mOutputWriter != null) { 118 mOutputWriter.close(); 119 } 120 super.tearDown(); 121 } 122 123 private void writeOutput(String s) { 124 log("write message: " + s); 125 if (mOutputWriter == null) { 126 log("no writer attached to file " + OUTPUT_FILE); 127 return; 128 } 129 try { 130 mOutputWriter.write(s + "\n"); 131 mOutputWriter.flush(); 132 } catch (IOException e) { 133 log("failed to write output."); 134 } 135 } 136 137 public void log(String message) { 138 Log.v(TAG, message); 139 } 140 141 private void sleep(long sometime, String errorMsg) { 142 try { 143 Thread.sleep(sometime); 144 } catch (InterruptedException e) { 145 fail(errorMsg); 146 } 147 } 148 149 /** 150 * Stress Wifi Scanning 151 * TODO: test the scanning quality for each frequency band 152 */ 153 @LargeTest 154 public void testWifiScanning() { 155 int scanTimeSum = 0; 156 int i; 157 int ssidAppearInScanResultsCount = 0; // count times of given ssid appear in scan results. 158 for (i = 0; i < mScanIterations; i++) { 159 log("testWifiScanning: iteration: " + i); 160 int averageScanTime = 0; 161 if (i > 0) { 162 averageScanTime = scanTimeSum/i; 163 } 164 writeOutput(String.format("iteration %d out of %d", 165 i, mScanIterations)); 166 writeOutput(String.format("average scanning time is %d", averageScanTime)); 167 writeOutput(String.format("ssid appear %d out of %d scan iterations", 168 ssidAppearInScanResultsCount, i)); 169 long startTime = System.currentTimeMillis(); 170 mAct.scanResultAvailable = false; 171 assertTrue("start scan failed", mAct.mWifiManager.startScanActive()); 172 while (true) { 173 if ((System.currentTimeMillis() - startTime) > 174 ConnectivityManagerTestActivity.WIFI_SCAN_TIMEOUT) { 175 fail("Wifi scanning takes more than " + 176 ConnectivityManagerTestActivity.WIFI_SCAN_TIMEOUT + " ms"); 177 } 178 synchronized(mAct) { 179 try { 180 mAct.wait(ConnectivityManagerTestActivity.WAIT_FOR_SCAN_RESULT); 181 } catch (InterruptedException e) { 182 e.printStackTrace(); 183 } 184 if (mAct.scanResultAvailable) { 185 long scanTime = (System.currentTimeMillis() - startTime); 186 scanTimeSum += scanTime; 187 break; 188 } 189 } 190 } 191 if ((mAct.mWifiManager.getScanResults() == null) || 192 (mAct.mWifiManager.getScanResults().size() <= 0)) { 193 fail("Scan results are empty "); 194 } 195 196 List<ScanResult> netList = mAct.mWifiManager.getScanResults(); 197 if (netList != null) { 198 log("size of scan result list: " + netList.size()); 199 for (int s = 0; s < netList.size(); s++) { 200 ScanResult sr= netList.get(s); 201 log(String.format("scan result for %s is: %s", sr.SSID, sr.toString())); 202 log(String.format("signal level for %s is %d ", sr.SSID, sr.level)); 203 if (sr.SSID.equals(mSsid)) { 204 ssidAppearInScanResultsCount += 1; 205 log("Number of times " + mSsid + " appear in the scan list: " + 206 ssidAppearInScanResultsCount); 207 break; 208 } 209 } 210 } 211 } 212 if (i == mScanIterations) { 213 writeOutput(String.format("iteration %d out of %d", 214 i, mScanIterations)); 215 writeOutput(String.format("average scanning time is %d", scanTimeSum/mScanIterations)); 216 writeOutput(String.format("ssid appear %d out of %d scan iterations", 217 ssidAppearInScanResultsCount, mScanIterations)); 218 } 219 } 220 221 // Stress Wifi reconnection to secure net after sleep 222 @LargeTest 223 public void testWifiReconnectionAfterSleep() { 224 int value = Settings.System.getInt(mRunner.getContext().getContentResolver(), 225 Settings.System.WIFI_SLEEP_POLICY, -1); 226 if (value < 0) { 227 Settings.System.putInt(mRunner.getContext().getContentResolver(), 228 Settings.System.WIFI_SLEEP_POLICY, Settings.System.WIFI_SLEEP_POLICY_DEFAULT); 229 log("set wifi sleep policy to default value"); 230 } 231 Settings.Secure.putLong(mRunner.getContext().getContentResolver(), 232 Settings.Secure.WIFI_IDLE_MS, WIFI_IDLE_MS); 233 234 // Connect to a Wi-Fi network 235 WifiConfiguration config = new WifiConfiguration(); 236 config.SSID = mSsid; 237 config.allowedKeyManagement.set(KeyMgmt.WPA_PSK); 238 if (mPassword.matches("[0-9A-Fa-f]{64}")) { 239 config.preSharedKey = mPassword; 240 } else { 241 config.preSharedKey = '"' + mPassword + '"'; 242 } 243 config.ipAssignment = IpAssignment.DHCP; 244 config.proxySettings = ProxySettings.NONE; 245 246 assertTrue("Failed to connect to Wi-Fi network: " + mSsid, 247 mAct.connectToWifiWithConfiguration(config)); 248 assertTrue(mAct.waitForWifiState(WifiManager.WIFI_STATE_ENABLED, 249 ConnectivityManagerTestActivity.SHORT_TIMEOUT)); 250 assertTrue(mAct.waitForNetworkState(ConnectivityManager.TYPE_WIFI, State.CONNECTED, 251 ConnectivityManagerTestActivity.LONG_TIMEOUT)); 252 // Run ping test to verify the data connection 253 assertTrue("Wi-Fi is connected, but no data connection.", mAct.pingTest(null)); 254 255 int i; 256 long sum = 0; 257 for (i = 0; i < mReconnectIterations; i++) { 258 // 1. Put device into sleep mode 259 // 2. Wait for the device to sleep for sometime, verify wi-fi is off and mobile is on. 260 // 3. Maintain the sleep mode for some time, 261 // 4. Verify the Wi-Fi is still off, and data is on 262 // 5. Wake up the device, verify Wi-Fi is enabled and connected. 263 writeOutput(String.format("iteration %d out of %d", 264 i, mReconnectIterations)); 265 log("iteration: " + i); 266 mAct.turnScreenOff(); 267 PowerManager pm = 268 (PowerManager)mRunner.getContext().getSystemService(Context.POWER_SERVICE); 269 assertFalse(pm.isScreenOn()); 270 sleep(WIFI_IDLE_MS + WIFI_SHUTDOWN_DELAY, "Interruped while wait for wifi to be idle"); 271 assertTrue("Wait for Wi-Fi to idle timeout", 272 mAct.waitForNetworkState(ConnectivityManager.TYPE_WIFI, State.DISCONNECTED, 273 6 * ConnectivityManagerTestActivity.SHORT_TIMEOUT)); 274 if (!UtilHelper.isWifiOnly()) { 275 // use long timeout as the pppd startup may take several retries. 276 assertTrue("Wait for cellular connection timeout", 277 mAct.waitForNetworkState(ConnectivityManager.TYPE_MOBILE, State.CONNECTED, 278 2 * ConnectivityManagerTestActivity.LONG_TIMEOUT)); 279 } 280 sleep(mWifiSleepTime, "Interrupted while device is in sleep mode"); 281 // Verify the wi-fi is still off and data connection is on 282 assertEquals("Wi-Fi is reconnected", State.DISCONNECTED, 283 mAct.mCM.getNetworkInfo(ConnectivityManager.TYPE_WIFI).getState()); 284 285 if (!UtilHelper.isWifiOnly()) { 286 assertEquals("Cellular connection is down", State.CONNECTED, 287 mAct.mCM.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).getState()); 288 assertTrue("Mobile is connected, but no data connection.", mAct.pingTest(null)); 289 } 290 291 // Turn screen on again 292 mAct.turnScreenOn(); 293 // Measure the time for Wi-Fi to get connected 294 long startTime = System.currentTimeMillis(); 295 assertTrue("Wait for Wi-Fi enable timeout after wake up", 296 mAct.waitForWifiState(WifiManager.WIFI_STATE_ENABLED, 297 ConnectivityManagerTestActivity.SHORT_TIMEOUT)); 298 assertTrue("Wait for Wi-Fi connection timeout after wake up", 299 mAct.waitForNetworkState(ConnectivityManager.TYPE_WIFI, State.CONNECTED, 300 6 * ConnectivityManagerTestActivity.LONG_TIMEOUT)); 301 long connectionTime = System.currentTimeMillis() - startTime; 302 sum += connectionTime; 303 log("average reconnection time is: " + sum/(i+1)); 304 305 assertTrue("Reconnect to Wi-Fi network, but no data connection.", mAct.pingTest(null)); 306 } 307 if (i == mReconnectIterations) { 308 writeOutput(String.format("iteration %d out of %d", 309 i, mReconnectIterations)); 310 } 311 } 312 } 313
