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am 93c30693: am 0d1bad9c: Merge "Add cts test for wifi scan timestamp." into lmp-dev

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automerge: 3c4d00b

* commit '3c4d00b0469f543da6b82b24e9270509c12ea70d':
  Add cts test for wifi scan timestamp.
This commit is contained in:
Wei Wang
2014-10-18 01:08:10 +00:00
committed by android-build-merger
parent 447139ee2f 3839734188
commit 4dad4c63c7
1 changed files with 49 additions and 3 deletions
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52
tests/cts/net/src/android/net/wifi/cts/WifiManagerTest.java
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@@ -28,6 +28,7 @@ import android.net.wifi.WifiConfiguration.Status;
import android.net.wifi.WifiManager;
import android.net.wifi.WifiManager.TxPacketCountListener;
import android.net.wifi.WifiManager.WifiLock;
import android.os.SystemClock;
import android.test.AndroidTestCase;
import android.util.Log;
@@ -36,6 +37,7 @@ import java.net.URL;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
public class WifiManagerTest extends AndroidTestCase {
@@ -46,7 +48,7 @@ public class WifiManagerTest extends AndroidTestCase {
private WifiManager mWifiManager;
private WifiLock mWifiLock;
private static MySync mMySync;
private List<ScanResult> mScanResult = null;
private List<ScanResult> mScanResults = null;
private NetworkInfo mNetworkInfo;
// Please refer to WifiManager
@@ -66,6 +68,10 @@ public class WifiManagerTest extends AndroidTestCase {
private static final int TIMEOUT_MSEC = 6000;
private static final int WAIT_MSEC = 60;
private static final int DURATION = 10000;
private static final int WIFI_SCAN_TEST_INTERVAL_MILLIS = 60 * 1000;
private static final int WIFI_SCAN_TEST_CACHE_DELAY_MILLIS = 3 * 60 * 1000;
private static final int WIFI_SCAN_TEST_ITERATIONS = 5;
private IntentFilter mIntentFilter;
private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
@Override
@@ -74,9 +80,9 @@ public class WifiManagerTest extends AndroidTestCase {
if (action.equals(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION)) {
synchronized (mMySync) {
if (mWifiManager.getScanResults() != null) {
mScanResult = mWifiManager.getScanResults();
mScanResults = mWifiManager.getScanResults();
mMySync.expectedState = STATE_SCAN_RESULTS_AVAILABLE;
mScanResult = mWifiManager.getScanResults();
mScanResults = mWifiManager.getScanResults();
mMySync.notifyAll();
}
}
@@ -260,6 +266,46 @@ public class WifiManagerTest extends AndroidTestCase {
assertFalse(mWifiManager.isWifiEnabled());
}
/**
* Test WiFi scan timestamp - fails when WiFi scan timestamps are inconsistent with
* {@link SystemClock#elapsedRealtime()} on device.<p>
* To run this test in cts-tradefed:
* run cts --class android.net.wifi.cts.WifiManagerTest --method testWifiScanTimestamp
*/
public void testWifiScanTimestamp() throws Exception {
if (!WifiFeature.isWifiSupported(getContext())) {
Log.d(TAG, "Skipping test as WiFi is not supported");
return;
}
if (!mWifiManager.isWifiEnabled()) {
setWifiEnabled(true);
}
// Scan multiple times to make sure scan timestamps increase with device timestamp.
for (int i = 0; i < WIFI_SCAN_TEST_ITERATIONS; ++i) {
startScan();
// Make sure at least one AP is found.
assertFalse("empty scan results!", mScanResults.isEmpty());
long nowMillis = SystemClock.elapsedRealtime();
// Keep track of how many APs are fresh in one scan.
int numFreshAps = 0;
for (ScanResult result : mScanResults) {
long scanTimeMillis = TimeUnit.MICROSECONDS.toMillis(result.timestamp);
if (Math.abs(nowMillis - scanTimeMillis) < WIFI_SCAN_TEST_CACHE_DELAY_MILLIS) {
numFreshAps++;
}
}
// At least half of the APs in the scan should be fresh.
int numTotalAps = mScanResults.size();
String msg = "Stale AP count: " + (numTotalAps - numFreshAps) + ", fresh AP count: "
+ numFreshAps;
assertTrue(msg, numFreshAps * 2 >= mScanResults.size());
if (i < WIFI_SCAN_TEST_ITERATIONS - 1) {
// Wait before running next iteration.
Thread.sleep(WIFI_SCAN_TEST_INTERVAL_MILLIS);
}
}
}
/**
* test point of wifiManager NetWork:
* 1.add NetWork