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