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CTS test for WiFi watchdog.

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The new WiFi watchdog requires kernel/driver to export some packet loss
counters. This CTS tests whether those counters are correctly exported.

Change-Id: Ic764eff64ff2ef354b46f17e46eb74b14f191e4c
This commit is contained in:
Yuhao Zheng
2012-08-14 14:24:35 -07:00
parent 72010dbfcf
commit 72465772e0
1 changed files with 87 additions and 1 deletions
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88
tests/cts/net/src/android/net/wifi/cts/WifiManagerTest.java
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@@ -21,17 +21,22 @@ import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.NetworkInfo;
import android.net.wifi.ScanResult;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiManager;
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.test.AndroidTestCase;
import android.util.Log;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.concurrent.atomic.AtomicInteger;
public class WifiManagerTest extends AndroidTestCase {
private static class MySync {
@@ -42,6 +47,7 @@ public class WifiManagerTest extends AndroidTestCase {
private WifiLock mWifiLock;
private static MySync mMySync;
private List<ScanResult> mScanResult = null;
private NetworkInfo mNetworkInfo;
// Please refer to WifiManager
private static final int MIN_RSSI = -100;
@@ -78,6 +84,13 @@ public class WifiManagerTest extends AndroidTestCase {
mMySync.expectedState = STATE_WIFI_CHANGED;
mMySync.notify();
}
} else if (action.equals(WifiManager.NETWORK_STATE_CHANGED_ACTION)) {
synchronized (mMySync) {
mNetworkInfo =
(NetworkInfo) intent.getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO);
if (mNetworkInfo.getState() == NetworkInfo.State.CONNECTED)
mMySync.notify();
}
}
}
};
@@ -148,6 +161,18 @@ public class WifiManagerTest extends AndroidTestCase {
}
}
private void connectWifi() throws Exception {
synchronized (mMySync) {
if (mNetworkInfo.getState() == NetworkInfo.State.CONNECTED) return;
assertTrue(mWifiManager.reconnect());
long timeout = System.currentTimeMillis() + TIMEOUT_MSEC;
while (System.currentTimeMillis() < timeout
&& mNetworkInfo.getState() != NetworkInfo.State.CONNECTED)
mMySync.wait(WAIT_MSEC);
assertTrue(mNetworkInfo.getState() == NetworkInfo.State.CONNECTED);
}
}
private boolean existSSID(String ssid) {
for (final WifiConfiguration w : mWifiManager.getConfiguredNetworks()) {
if (w.SSID.equals(ssid))
@@ -339,4 +364,65 @@ public class WifiManagerTest extends AndroidTestCase {
rssiB = 4;
assertTrue(WifiManager.compareSignalLevel(rssiA, rssiB) > 0);
}
private int getTxPacketCount() throws Exception {
final AtomicInteger ret = new AtomicInteger(-1);
mWifiManager.getTxPacketCount(new TxPacketCountListener() {
@Override
public void onSuccess(int count) {
ret.set(count);
}
@Override
public void onFailure(int reason) {
ret.set(0);
}
});
long timeout = System.currentTimeMillis() + TIMEOUT_MSEC;
while (ret.get() < 0 && System.currentTimeMillis() < timeout)
Thread.sleep(WAIT_MSEC);
assertTrue(ret.get() >= 0);
return ret.get();
}
/**
* The new WiFi watchdog requires kernel/driver to export some packet loss
* counters. This CTS tests whether those counters are correctly exported.
* To pass this CTS test, a connected WiFi link is required.
*/
public void testWifiWatchdog() throws Exception {
// Make sure WiFi is enabled
if (!mWifiManager.isWifiEnabled()) {
setWifiEnabled(true);
Thread.sleep(DURATION);
}
assertTrue(mWifiManager.isWifiEnabled());
// Wait for a WiFi connection
connectWifi();
// Read TX packet counter
int txcount1 = getTxPacketCount();
// Do some network operations
HttpURLConnection connection = null;
try {
URL url = new URL("http://www.google.com/");
connection = (HttpURLConnection) url.openConnection();
connection.setInstanceFollowRedirects(false);
connection.setConnectTimeout(TIMEOUT_MSEC);
connection.setReadTimeout(TIMEOUT_MSEC);
connection.setUseCaches(false);
connection.getInputStream();
} catch (Exception e) {
// ignore
} finally {
if (connection != null) connection.disconnect();
}
// Read TX packet counter again and make sure it increases
int txcount2 = getTxPacketCount();
assertTrue(txcount2 > txcount1);
}
}