Log API surfaces of WifiScanningService

Add logging to trace the following API surfaces in WifiScanningService
- AIDL methods calls,
- Async Channel messages sent to the scanning service
  - Use WifiHandler instead of Handler to define the client handler to
    trace incoming messsages
- Async Channel messages sent by the service
  - Use WifiAsyncChannel to trace reply messages sent by the service
  - Fully connected Async Channel is used here, therefore, it can send
    messages directly to the client's messenger without using Async
    channel methods. Add logging in replySucceeded() and replyFailed()
    to trace messages sent by the service directly to the client.

Bug: 33085782
Test: Unit test suite, verify logging, sanity test (power on and
    connect to Wifi Access Point)

Change-Id: I8df4f4077801c359e11a93fde2c1ce5ea811a0e4

1 files changed, 4 insertions, 0 deletions

diff --git a/tests/wifitests/src/com/android/server/wifi/scanner/WifiScanningServiceTest.java b/tests/wifitests/src/com/android/server/wifi/scanner/WifiScanningServiceTest.java
index 8e3be65cb..d99d290fa 100644
--- a/tests/wifitests/src/com/android/server/wifi/scanner/WifiScanningServiceTest.java
+++ b/tests/wifitests/src/com/android/server/wifi/scanner/WifiScanningServiceTest.java
@@ -48,6 +48,7 @@ import com.android.internal.util.AsyncChannel;
 import com.android.internal.util.Protocol;
 import com.android.internal.util.test.BidirectionalAsyncChannel;
 import com.android.server.wifi.Clock;
+import com.android.server.wifi.FakeWifiLog;
 import com.android.server.wifi.ScanResults;
 import com.android.server.wifi.TestUtil;
 import com.android.server.wifi.WifiInjector;
@@ -62,6 +63,7 @@ import org.mockito.ArgumentCaptor;
 import org.mockito.InOrder;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
+import org.mockito.Spy;
 import org.mockito.internal.matchers.CapturingMatcher;
 
 import java.io.FileDescriptor;
@@ -89,6 +91,7 @@ public class WifiScanningServiceTest {
     @Mock IBatteryStats mBatteryStats;
     @Mock WifiInjector mWifiInjector;
     @Mock Clock mClock;
+    @Spy FakeWifiLog mLog;
     WifiMetrics mWifiMetrics;
     TestLooper mLooper;
     WifiScanningServiceImpl mWifiScanningServiceImpl;
@@ -114,6 +117,7 @@ public class WifiScanningServiceTest {
                 .thenReturn(mWifiScannerImpl);
         when(mWifiScannerImpl.getChannelHelper()).thenReturn(channelHelper);
         when(mWifiInjector.getWifiMetrics()).thenReturn(mWifiMetrics);
+        when(mWifiInjector.makeLog(anyString())).thenReturn(mLog);
         mWifiScanningServiceImpl = new WifiScanningServiceImpl(mContext, mLooper.getLooper(),
                 mWifiScannerImplFactory, mBatteryStats, mWifiInjector);
     }