Update availability for mobile network

This CL updates the availability to behave properly when a
user other than the primary user is accessing it. This also
makes the api return no intent if they don't have permission to
access this because attempting to go to that screen will cause a
crash. Also updates tests related to this change.

Test: robotests still pass
Bug: 64092292
Change-Id: If9913d9ae08ee3e205ff324aaeeadc755ff1d23d

src/com/android/settings/network/MobileNetworkPreferenceController.java

@@ -32,7 +32,6 @@ import com.android.settingslib.core.lifecycle.events.OnResume;
 
 import static android.os.UserHandle.myUserId;
 import static android.os.UserManager.DISALLOW_CONFIG_MOBILE_NETWORKS;
-import static com.android.settingslib.RestrictedLockUtils.hasBaseUserRestriction;
 
 public class MobileNetworkPreferenceController extends PreferenceController implements
         LifecycleObserver, OnResume, OnPause {
@@ -41,22 +40,30 @@ public class MobileNetworkPreferenceController extends PreferenceController impl
 
     private final boolean mIsSecondaryUser;
     private final TelephonyManager mTelephonyManager;
+    private final UserManager mUserManager;
     private Preference mPreference;
     @VisibleForTesting
     PhoneStateListener mPhoneStateListener;
 
     public MobileNetworkPreferenceController(Context context) {
         super(context);
-        UserManager userManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
+        mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
         mTelephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
-        mIsSecondaryUser = !userManager.isAdminUser();
+        mIsSecondaryUser = !mUserManager.isAdminUser();
     }
 
     @Override
     public boolean isAvailable() {
-        return !mIsSecondaryUser
-                && !Utils.isWifiOnly(mContext)
-                && !hasBaseUserRestriction(mContext, DISALLOW_CONFIG_MOBILE_NETWORKS, myUserId());
+        return !isUserRestricted() && !Utils.isWifiOnly(mContext);
+    }
+
+    public boolean isUserRestricted() {
+        final RestrictedLockUtilsWrapper wrapper = new RestrictedLockUtilsWrapper();
+        return mIsSecondaryUser ||
+                wrapper.hasBaseUserRestriction(
+                        mContext,
+                        DISALLOW_CONFIG_MOBILE_NETWORKS,
+                        myUserId());
     }
 
     @Override

src/com/android/settings/network/RestrictedLockUtilsWrapper.java

@@ -0,0 +1,15 @@
+package com.android.settings.network;
+
+import android.content.Context;
+import com.android.settingslib.RestrictedLockUtils;
+
+/**
+ * Wrapper class needed to be able to test classes which use RestrictedLockUtils methods.
+ * Unfortunately there is no way to deal with this until robolectric is updated due to the fact
+ * that it is a static method and it uses new API's.
+ */
+public class RestrictedLockUtilsWrapper {
+    public boolean hasBaseUserRestriction(Context context, String userRestriction, int userId) {
+        return RestrictedLockUtils.hasBaseUserRestriction(context, userRestriction, userId);
+    }
+}