Merge "Unit tests for SupplicantStateTracker"

am: cb86d10809

Change-Id: I3fd614a689c306c1b6e78813ae0394319339784f

3 files changed, 118 insertions, 4 deletions

diff --git a/service/java/com/android/server/wifi/FrameworkFacade.java b/service/java/com/android/server/wifi/FrameworkFacade.java
index c1b5e8d1e..42f0161e9 100644
--- a/service/java/com/android/server/wifi/FrameworkFacade.java
+++ b/service/java/com/android/server/wifi/FrameworkFacade.java
@@ -24,6 +24,7 @@ import android.database.ContentObserver;
 import android.net.TrafficStats;
 import android.net.Uri;
 import android.net.ip.IpManager;
+import android.os.BatteryStats;
 import android.os.Handler;
 import android.os.IBinder;
 import android.os.RemoteException;
@@ -31,6 +32,7 @@ import android.os.ServiceManager;
 import android.provider.Settings;
 import android.telephony.CarrierConfigManager;
 
+import com.android.internal.app.IBatteryStats;
 import com.android.server.wifi.util.WifiAsyncChannel;
 
 /**
@@ -78,13 +80,21 @@ public class FrameworkFacade {
         return ServiceManager.getService(serviceName);
     }
 
+    /**
+     * Returns the battery stats interface
+     * @return IBatteryStats BatteryStats service interface
+     */
+    public IBatteryStats getBatteryService() {
+        return IBatteryStats.Stub.asInterface(getService(BatteryStats.SERVICE_NAME));
+    }
+
     public PendingIntent getBroadcast(Context context, int requestCode, Intent intent, int flags) {
         return PendingIntent.getBroadcast(context, requestCode, intent, flags);
     }
 
     public SupplicantStateTracker makeSupplicantStateTracker(Context context,
             WifiConfigManager configManager, Handler handler) {
-        return new SupplicantStateTracker(context, configManager, handler);
+        return new SupplicantStateTracker(context, configManager, this, handler);
     }
 
     public boolean getConfigWiFiDisableInECBM(Context context) {
diff --git a/service/java/com/android/server/wifi/SupplicantStateTracker.java b/service/java/com/android/server/wifi/SupplicantStateTracker.java
index ea5d9ebd5..9ba64b9bc 100644
--- a/service/java/com/android/server/wifi/SupplicantStateTracker.java
+++ b/service/java/com/android/server/wifi/SupplicantStateTracker.java
@@ -26,7 +26,6 @@ import android.os.Handler;
 import android.os.Message;
 import android.os.Parcelable;
 import android.os.RemoteException;
-import android.os.ServiceManager;
 import android.os.UserHandle;
 import android.util.Log;
 import android.util.Slog;
@@ -49,6 +48,7 @@ public class SupplicantStateTracker extends StateMachine {
     private static final String TAG = "SupplicantStateTracker";
     private static boolean DBG = false;
     private final WifiConfigManager mWifiConfigManager;
+    private FrameworkFacade mFacade;
     private final IBatteryStats mBatteryStats;
     /* Indicates authentication failure in supplicant broadcast.
      * TODO: enhance auth failure reporting to include notification
@@ -88,12 +88,14 @@ public class SupplicantStateTracker extends StateMachine {
         return getCurrentState().getName();
     }
 
-    public SupplicantStateTracker(Context c, WifiConfigManager wcs, Handler t) {
+    public SupplicantStateTracker(Context c, WifiConfigManager wcs,
+            FrameworkFacade facade, Handler t) {
         super(TAG, t.getLooper());
 
         mContext = c;
         mWifiConfigManager = wcs;
-        mBatteryStats = (IBatteryStats)ServiceManager.getService(BatteryStats.SERVICE_NAME);
+        mFacade = facade;
+        mBatteryStats = mFacade.getBatteryService();
         // CHECKSTYLE:OFF IndentationCheck
         addState(mDefaultState);
             addState(mUninitializedState, mDefaultState);
diff --git a/tests/wifitests/src/com/android/server/wifi/SupplicantStateTrackerTest.java b/tests/wifitests/src/com/android/server/wifi/SupplicantStateTrackerTest.java
new file mode 100644
index 000000000..f1a9e945d
--- /dev/null
+++ b/tests/wifitests/src/com/android/server/wifi/SupplicantStateTrackerTest.java
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.server.wifi;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Mockito.*;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.net.wifi.SupplicantState;
+import android.net.wifi.WifiManager;
+import android.net.wifi.WifiSsid;
+import android.os.Handler;
+import android.os.Message;
+import android.os.test.TestLooper;
+
+import com.android.internal.app.IBatteryStats;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+/**
+ * Unit tests for {@link android.net.wifi.SupplicantStateTracker}.
+ */
+public class SupplicantStateTrackerTest {
+
+    private static final String TAG = "SupplicantStateTrackerTest";
+    private static final String   sSSID = "\"GoogleGuest\"";
+    private static final WifiSsid sWifiSsid = WifiSsid.createFromAsciiEncoded(sSSID);
+    private static final String   sBSSID = "01:02:03:04:05:06";
+
+    private @Mock WifiConfigManager mWcm;
+    private @Mock Context mContext;
+    private Handler mHandler;
+    private SupplicantStateTracker mSupplicantStateTracker;
+    private TestLooper mLooper;
+    private FrameworkFacade mFacade;
+    private BroadcastReceiver mWifiBroadcastReceiver;
+
+    private FrameworkFacade getFrameworkFacade() {
+        FrameworkFacade facade = mock(FrameworkFacade.class);
+        IBatteryStats batteryStatsService = mock(IBatteryStats.class);
+        when(facade.getBatteryService()).thenReturn(batteryStatsService);
+        return facade;
+    }
+
+    private Message getSupplicantStateChangeMessage(int networkId, WifiSsid wifiSsid,
+            String bssid, SupplicantState newSupplicantState) {
+        return Message.obtain(null, WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT, 0, 0,
+                new StateChangeResult(networkId, wifiSsid, bssid, newSupplicantState));
+
+    }
+
+    @Before
+    public void setUp() {
+        mLooper = new TestLooper();
+        mHandler = new Handler(mLooper.getLooper());
+        MockitoAnnotations.initMocks(this);
+        mFacade = getFrameworkFacade();
+        mSupplicantStateTracker = new SupplicantStateTracker(mContext, mWcm, mFacade, mHandler);
+    }
+
+    /**
+     * This test verifies that the SupplicantStateTracker sends a broadcast intent upon receiving
+     * a message when supplicant state changes
+     */
+    @Test
+    public void testSupplicantStateChangeIntent() {
+        mWifiBroadcastReceiver = new BroadcastReceiver() {
+            @Override
+            public void onReceive(Context context, Intent intent) {
+                String action = intent.getAction();
+                assertTrue(action.equals(WifiManager.SUPPLICANT_STATE_CHANGED_ACTION));
+                SupplicantState recvdState =
+                        (SupplicantState) intent.getExtra(WifiManager.EXTRA_NEW_STATE, -1);
+                assertEquals(SupplicantState.SCANNING, recvdState);
+            }
+        };
+        IntentFilter mIntentFilter = new IntentFilter();
+        mIntentFilter.addAction(WifiManager.SUPPLICANT_STATE_CHANGED_ACTION);
+        mContext.registerReceiver(mWifiBroadcastReceiver, mIntentFilter);
+        mSupplicantStateTracker.sendMessage(getSupplicantStateChangeMessage(0, sWifiSsid,
+                sBSSID, SupplicantState.SCANNING));
+    }
+}