Fix crash when changing data restriction for non-app UID.

Change-Id: Ie622e8e22bade33050865fe4135534b27995d523
Fixes: 31708057
Test: make RunSettingsRoboTests

tests/robotests/src/com/android/settings/datausage/UnrestrictedDataAccessTest.java

@@ -0,0 +1,64 @@
+/*
+ * 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.settings.datausage;
+
+import android.content.pm.ApplicationInfo;
+import android.os.Process;
+
+import com.android.settings.TestConfig;
+import com.android.settingslib.applications.ApplicationsState;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.annotation.Config;
+
+import static com.google.common.truth.Truth.assertThat;
+
+@RunWith(RobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class UnrestrictedDataAccessTest {
+
+    @Mock
+    private ApplicationsState.AppEntry mAppEntry;
+    private UnrestrictedDataAccess mFragment;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mFragment = new UnrestrictedDataAccess();
+    }
+
+    @Test
+    public void testShouldAddPreferenceForApps() {
+        mAppEntry.info = new ApplicationInfo();
+        mAppEntry.info.uid = Process.FIRST_APPLICATION_UID + 10;
+
+        assertThat(mFragment.shouldAddPreference(mAppEntry)).isTrue();
+    }
+
+    @Test
+    public void testShouldNotAddPreferenceForNonApps() {
+        mAppEntry.info = new ApplicationInfo();
+        mAppEntry.info.uid = Process.FIRST_APPLICATION_UID - 10;
+
+        assertThat(mFragment.shouldAddPreference(mAppEntry)).isFalse();
+    }
+
+}