WifiServiceImpl: setWifiApEnabled unit tests

Add unit tests to cover setWifiApEnabled.  This did require a small
change to check a tethering permission and add the user manager.

Bug: 37294233
Test: frameworks/opt/net/wifi/tests/wifitests/runtests.sh
Change-Id: I7bdfdcbdfa60605bc2e61f18aa8abeb4bcaf5c56
Merged-In: I77413789b1b2a19c9330f4c9b9978c4a0f5b5bf8
Merged-In: I33ae84d7282dea967a53a644018e20eb2902eca3

3 files changed, 16 insertions, 3 deletions

diff --git a/service/java/com/android/server/wifi/WifiInjector.java b/service/java/com/android/server/wifi/WifiInjector.java
index af470eee8..3d444a448 100644
--- a/service/java/com/android/server/wifi/WifiInjector.java
+++ b/service/java/com/android/server/wifi/WifiInjector.java
@@ -237,6 +237,10 @@ public class WifiInjector {
         return sWifiInjector;
     }
 
+    public UserManager getUserManager() {
+        return UserManager.get(mContext);
+    }
+
     public WifiMetrics getWifiMetrics() {
         return mWifiMetrics;
     }
diff --git a/service/java/com/android/server/wifi/WifiServiceImpl.java b/service/java/com/android/server/wifi/WifiServiceImpl.java
index c6166cdb2..f83923979 100644
--- a/service/java/com/android/server/wifi/WifiServiceImpl.java
+++ b/service/java/com/android/server/wifi/WifiServiceImpl.java
@@ -39,7 +39,6 @@ import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.ParceledListSlice;
 import android.database.ContentObserver;
-import android.net.ConnectivityManager;
 import android.net.DhcpInfo;
 import android.net.DhcpResults;
 import android.net.IpConfiguration;
@@ -332,7 +331,7 @@ public class WifiServiceImpl extends IWifiManager.Stub {
         mFacade = mWifiInjector.getFrameworkFacade();
         mWifiMetrics = mWifiInjector.getWifiMetrics();
         mTrafficPoller = mWifiInjector.getWifiTrafficPoller();
-        mUserManager = UserManager.get(mContext);
+        mUserManager = mWifiInjector.getUserManager();
         mCountryCode = mWifiInjector.getWifiCountryCode();
         mWifiStateMachine = mWifiInjector.getWifiStateMachine();
         mWifiStateMachine.enableRssiPolling(true);
@@ -670,7 +669,7 @@ public class WifiServiceImpl extends IWifiManager.Stub {
     @Override
     public void setWifiApEnabled(WifiConfiguration wifiConfig, boolean enabled) {
         enforceChangePermission();
-        ConnectivityManager.enforceTetherChangePermission(mContext);
+        mWifiPermissionsUtil.enforceTetherChangePermission(mContext);
 
         mLog.trace("setWifiApEnabled uid=% enable=%").c(Binder.getCallingUid()).c(enabled).flush();
 
diff --git a/service/java/com/android/server/wifi/util/WifiPermissionsUtil.java b/service/java/com/android/server/wifi/util/WifiPermissionsUtil.java
index 2010dcfa7..6de39ac3d 100644
--- a/service/java/com/android/server/wifi/util/WifiPermissionsUtil.java
+++ b/service/java/com/android/server/wifi/util/WifiPermissionsUtil.java
@@ -21,6 +21,7 @@ import android.app.AppOpsManager;
 import android.content.Context;
 import android.content.pm.PackageManager;
 import android.content.pm.UserInfo;
+import android.net.ConnectivityManager;
 import android.net.NetworkScoreManager;
 import android.os.RemoteException;
 import android.os.UserManager;
@@ -75,6 +76,15 @@ public class WifiPermissionsUtil {
     }
 
     /**
+     * Check and enforce tether change permission.
+     *
+     * @param context Context object of the caller.
+     */
+    public void enforceTetherChangePermission(Context context) {
+        ConnectivityManager.enforceTetherChangePermission(context);
+    }
+
+    /**
      * API to determine if the caller has permissions to get
      * scan results.
      * @param pkgName Packagename of the application requesting access