Adding Wifi setting to special_access settings

In the settings app, allow users to override app permission for
CHANGE_WIFI_STATE for every application that declared that permission.

Bug: 70562620
Test: compile, robotests

Manual test:
Flash build to device (walleye)
Download iPass from playstore
Open iPass and try connect to a wifi network; verify success
Open settings -> Apps & notifications -> Advanced -> Special app access
-> Wifi access
Select iPass from the list
Toggle the switch to off
Open iPass and try connect to a wifi network; verify failure

Change-Id: Ib2be4c83988a81ba7831d096c9b1980462e66903

res/values/strings.xml

@@ -9359,4 +9359,18 @@
 
     <!-- Title for item to go to old battery settings page when clicking [CHAR LIMIT=100] -->
     <string name="dev_android_o_battery_settings_title">See Android 8.0 battery settings</string>
+    <!-- Title for Wifi Access settings [CHAR LIMIT=35] -->
+    <string name="change_wifi_state_title">Toggle wifi on and off</string>
+    <!-- Keywords for Wifi Access settings [CHAR LIMIT=35] -->
+    <string name="keywords_change_wifi_state">toggle wifi on and off</string>
+
+    <!-- Apps > App Details > Advanced section string title. [CHAR LIMIT=35] -->
+    <string name="change_wifi_state_app_detail_title">Toggle wifi on and off</string>
+
+    <!-- Apps > App Details > Wifi access > Switch title. [CHAR LIMIT=NONE] -->
+    <string name="change_wifi_state_app_detail_switch">Allow toggle wifi</string>
+
+    <!-- Apps > App Details > Wifi access > Description. [CHAR LIMIT=NONE] -->
+    <string name="change_wifi_state_app_detail_summary">Allow this app to change wifi state including connecting to wifi and turing wifi on and off.</string>
+
 </resources>

res/xml/change_wifi_state_details.xml

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2018 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.
+-->
+
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
+    android:key="change_wifi_state"
+    android:title="@string/change_wifi_state_app_detail_title">
+
+  <SwitchPreference
+      android:key="app_ops_settings_switch"
+      android:title="@string/change_wifi_state_app_detail_switch"/>
+
+  <Preference
+      android:key="app_ops_settings_preference"
+      android:summary="@string/change_wifi_state_app_detail_summary"
+      android:selectable="false"/>
+
+</PreferenceScreen>

res/xml/special_access.xml

@@ -121,4 +121,14 @@
             android:value="com.android.settings.Settings$DirectoryAccessSettingsActivity" />
     </Preference>
 
+    <Preference
+        android:key="change_wifi_state"
+        android:title="@string/change_wifi_state_title"
+        android:fragment="com.android.settings.applications.manageapplications.ManageApplications"
+        settings:keywords="@string/keywords_change_wifi_state">
+        <extra
+            android:name="classname"
+            android:value="com.android.settings.Settings$ChangeWifiStateActivity" />
+    </Preference>
+
 </PreferenceScreen>

src/com/android/settings/Settings.java

@@ -128,6 +128,7 @@ public class Settings extends SettingsActivity {
     public static class AppMemoryUsageActivity extends SettingsActivity { /* empty */ }
     public static class OverlaySettingsActivity extends SettingsActivity { /* empty */ }
     public static class WriteSettingsActivity extends SettingsActivity { /* empty */ }
+    public static class ChangeWifiStateActivity extends SettingsActivity { /* empty */ }
     public static class AppDrawOverlaySettingsActivity extends SettingsActivity { /* empty */ }
     public static class AppWriteSettingsActivity extends SettingsActivity { /* empty */ }
     public static class AdvancedAppsActivity extends SettingsActivity { /* empty */ }

src/com/android/settings/applications/manageapplications/AppFilterRegistry.java

@@ -26,6 +26,7 @@ import com.android.settings.applications.AppStatePowerBridge;
 import com.android.settings.applications.AppStateDirectoryAccessBridge;
 import com.android.settings.applications.AppStateUsageBridge;
 import com.android.settings.applications.AppStateWriteSettingsBridge;
+import com.android.settings.wifi.AppStateChangeWifiStateBridge;
 import com.android.settingslib.applications.ApplicationsState;
 
 /**
@@ -67,14 +68,15 @@ public class AppFilterRegistry {
     public static final int FILTER_APPS_WRITE_SETTINGS = 11;
     public static final int FILTER_APPS_INSTALL_SOURCES = 12;
     public static final int FILTER_APP_HAS_DIRECTORY_ACCESS = 13;
-    // Next id: 14
+    public static final int FILTER_APP_CAN_CHANGE_WIFI_STATE = 14;
+    // Next id: 15
 
     private static AppFilterRegistry sRegistry;
 
     private final AppFilterItem[] mFilters;
 
     private AppFilterRegistry() {
-        mFilters = new AppFilterItem[14];
+        mFilters = new AppFilterItem[15];
 
         // High power whitelist, on
         mFilters[FILTER_APPS_POWER_WHITELIST] = new AppFilterItem(
@@ -163,6 +165,11 @@ public class AppFilterRegistry {
                 AppStateDirectoryAccessBridge.FILTER_APP_HAS_DIRECTORY_ACCESS,
                 FILTER_APP_HAS_DIRECTORY_ACCESS,
                 R.string.filter_install_sources_apps);
+
+        mFilters[FILTER_APP_CAN_CHANGE_WIFI_STATE] = new AppFilterItem(
+                AppStateChangeWifiStateBridge.FILTER_CHANGE_WIFI_STATE,
+                FILTER_APP_CAN_CHANGE_WIFI_STATE,
+                R.string.filter_write_settings_apps);
     }
 
     public static AppFilterRegistry getInstance() {
@@ -187,6 +194,8 @@ public class AppFilterRegistry {
                 return FILTER_APPS_INSTALL_SOURCES;
             case ManageApplications.LIST_TYPE_DIRECTORY_ACCESS:
                 return FILTER_APP_HAS_DIRECTORY_ACCESS;
+            case ManageApplications.LIST_TYPE_WIFI_ACCESS:
+                return FILTER_APP_CAN_CHANGE_WIFI_STATE;
             default:
                 return FILTER_APPS_ALL;
         }

src/com/android/settings/applications/manageapplications/ManageApplications.java

@@ -96,6 +96,8 @@ import com.android.settings.applications.appinfo.AppNotificationPreferenceContro
 import com.android.settings.applications.appinfo.DrawOverlayDetails;
 import com.android.settings.applications.appinfo.ExternalSourcesDetails;
 import com.android.settings.applications.appinfo.WriteSettingsDetails;
+
+import com.android.settings.core.FeatureFlags;
 import com.android.settings.core.InstrumentedPreferenceFragment;
 import com.android.settings.core.SubSettingLauncher;
 import com.android.settings.dashboard.SummaryLoader;
@@ -105,6 +107,8 @@ import com.android.settings.notification.ConfigureNotificationSettings;
 import com.android.settings.notification.NotificationBackend;
 import com.android.settings.notification.NotificationBackend.AppRow;
 import com.android.settings.widget.LoadingViewController;
+import com.android.settings.wifi.AppStateChangeWifiStateBridge;
+import com.android.settings.wifi.ChangeWifiStateDetails;
 import com.android.settingslib.HelpUtils;
 import com.android.settingslib.applications.ApplicationsState;
 import com.android.settingslib.applications.ApplicationsState.AppEntry;
@@ -204,6 +208,7 @@ public class ManageApplications extends InstrumentedPreferenceFragment
     public static final int LIST_TYPE_MOVIES = 10;
     public static final int LIST_TYPE_PHOTOGRAPHY = 11;
     public static final int LIST_TYPE_DIRECTORY_ACCESS = 12;
+    public static final int LIST_TYPE_WIFI_ACCESS = 13;
 
     // List types that should show instant apps.
     public static final Set<Integer> LIST_TYPES_WITH_INSTANT = new ArraySet<>(Arrays.asList(
@@ -277,6 +282,9 @@ public class ManageApplications extends InstrumentedPreferenceFragment
         } else if (className.equals(Settings.DirectoryAccessSettingsActivity.class.getName())) {
             mListType = LIST_TYPE_DIRECTORY_ACCESS;
             screenTitle = R.string.directory_access;
+        } else if (className.equals(Settings.ChangeWifiStateActivity.class.getName())) {
+            mListType = LIST_TYPE_WIFI_ACCESS;
+            screenTitle = R.string.change_wifi_state_title;
         } else {
             mListType = LIST_TYPE_MAIN;
         }
@@ -443,6 +451,8 @@ public class ManageApplications extends InstrumentedPreferenceFragment
                 return MetricsEvent.MANAGE_EXTERNAL_SOURCES;
             case LIST_TYPE_DIRECTORY_ACCESS:
                 return MetricsEvent.DIRECTORY_ACCESS;
+            case LIST_TYPE_WIFI_ACCESS:
+                return MetricsEvent.CONFIGURE_WIFI;
             default:
                 return MetricsEvent.VIEW_UNKNOWN;
         }
@@ -540,7 +550,9 @@ public class ManageApplications extends InstrumentedPreferenceFragment
             case LIST_TYPE_DIRECTORY_ACCESS:
                 startAppInfoFragment(DirectoryAccessDetails.class, R.string.directory_access);
                 break;
-
+            case LIST_TYPE_WIFI_ACCESS:
+                startAppInfoFragment(ChangeWifiStateDetails.class, R.string.change_wifi_state_title);
+                break;
             // TODO: Figure out if there is a way where we can spin up the profile's settings
             // process ahead of time, to avoid a long load of data when user clicks on a managed
             // app. Maybe when they load the list of apps that contains managed profile apps.
@@ -846,6 +858,8 @@ public class ManageApplications extends InstrumentedPreferenceFragment
                 mExtraInfoBridge = new AppStateInstallAppsBridge(mContext, mState, this);
             } else if (mManageApplications.mListType == LIST_TYPE_DIRECTORY_ACCESS) {
                 mExtraInfoBridge = new AppStateDirectoryAccessBridge(mState, this);
+            } else if (mManageApplications.mListType == LIST_TYPE_WIFI_ACCESS) {
+                mExtraInfoBridge = new AppStateChangeWifiStateBridge(mContext, mState, this);
             } else {
                 mExtraInfoBridge = null;
             }
@@ -1251,6 +1265,9 @@ public class ManageApplications extends InstrumentedPreferenceFragment
                 case LIST_TYPE_DIRECTORY_ACCESS:
                     holder.setSummary(null);
                     break;
+                case LIST_TYPE_WIFI_ACCESS:
+                    holder.setSummary(ChangeWifiStateDetails.getSummary(mContext, entry));
+                    break;
                 default:
                     holder.updateSizeText(entry, mManageApplications.mInvalidSizeStr, mWhichSize);
                     break;

src/com/android/settings/wifi/AppStateChangeWifiStateBridge.java

@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2018 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.wifi;
+
+import android.Manifest;
+import android.app.AppOpsManager;
+import android.content.Context;
+
+import com.android.settings.applications.AppStateAppOpsBridge;
+import com.android.settings.applications.AppStateAppOpsBridge.PermissionState;
+import com.android.settingslib.applications.ApplicationsState;
+import com.android.settingslib.applications.ApplicationsState.AppEntry;
+import com.android.settingslib.applications.ApplicationsState.AppFilter;
+
+import java.util.List;
+/*
+ * Connects info of apps that change wifi state to the ApplicationsState. Wraps around the generic
+ * AppStateAppOpsBridge class to tailor to the semantics of CHANGE_WIFI_STATE. Also provides app
+ * filters that can use the info.
+ */
+public class AppStateChangeWifiStateBridge extends AppStateAppOpsBridge {
+
+    private static final String TAG = "AppStateChangeWifiStateBridge";
+    private static final int APP_OPS_OP_CODE = AppOpsManager.OP_CHANGE_WIFI_STATE;
+    private static final String PM_CHANGE_WIFI_STATE = Manifest.permission.CHANGE_WIFI_STATE;
+
+    private static final String[] PM_PERMISSIONS = {
+            PM_CHANGE_WIFI_STATE
+    };
+
+    public AppStateChangeWifiStateBridge(Context context, ApplicationsState appState, Callback
+            callback) {
+        super(context, appState, callback, APP_OPS_OP_CODE, PM_PERMISSIONS);
+    }
+
+    @Override
+    protected void updateExtraInfo(AppEntry app, String pkg, int uid) {
+        app.extraInfo = getWifiSettingsInfo(pkg, uid);
+    }
+
+    @Override
+    protected void loadAllExtraInfo() {
+        final List<AppEntry> allApps = mAppSession.getAllApps();
+        for (AppEntry entry : allApps) {
+            updateExtraInfo(entry, entry.info.packageName, entry.info.uid);
+        }
+    }
+
+    public WifiSettingsState getWifiSettingsInfo(String pkg, int uid) {
+        PermissionState permissionState = super.getPermissionInfo(pkg, uid);
+        return new WifiSettingsState(permissionState);
+    }
+
+    public static class WifiSettingsState extends AppStateAppOpsBridge.PermissionState {
+        public WifiSettingsState(PermissionState permissionState) {
+            super(permissionState.packageName, permissionState.userHandle);
+            this.packageInfo = permissionState.packageInfo;
+            this.appOpMode = permissionState.appOpMode;
+            this.permissionDeclared = permissionState.permissionDeclared;
+            this.staticPermissionGranted = permissionState.staticPermissionGranted;
+        }
+    }
+
+    public static final AppFilter FILTER_CHANGE_WIFI_STATE = new AppFilter() {
+        @Override
+        public void init() {
+        }
+
+        @Override
+        public boolean filterApp(AppEntry info) {
+            if (info == null || info.extraInfo == null) {
+                return false;
+            }
+            WifiSettingsState wifiSettingsState = (WifiSettingsState) info.extraInfo;
+            return wifiSettingsState.permissionDeclared;
+        }
+    };
+}

src/com/android/settings/wifi/ChangeWifiStateDetails.java

@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2018 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.wifi;
+
+import android.Manifest.permission;
+import android.app.AlertDialog;
+import android.app.AppOpsManager;
+import android.content.Context;
+import android.os.Bundle;
+import android.support.v14.preference.SwitchPreference;
+import android.support.v7.preference.Preference;
+import android.support.v7.preference.Preference.OnPreferenceChangeListener;
+
+import com.android.internal.annotations.VisibleForTesting;
+import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
+import com.android.settings.applications.AppInfoWithHeader;
+import com.android.settings.applications.AppStateAppOpsBridge.PermissionState;
+import com.android.settings.R;
+import com.android.settings.overlay.FeatureFactory;
+
+import com.android.settings.wifi.AppStateChangeWifiStateBridge.WifiSettingsState;
+import com.android.settingslib.applications.ApplicationsState.AppEntry;
+import com.android.settingslib.applications.ApplicationsState.AppFilter;
+
+import static android.app.AppOpsManager.MODE_ALLOWED;
+import static android.app.AppOpsManager.MODE_IGNORED;
+
+public class ChangeWifiStateDetails extends AppInfoWithHeader
+        implements OnPreferenceChangeListener {
+
+    private static final String KEY_APP_OPS_SETTINGS_SWITCH = "app_ops_settings_switch";
+    private static final String LOG_TAG = "ChangeWifiStateDetails";
+
+    private AppStateChangeWifiStateBridge mAppBridge;
+    private AppOpsManager mAppOpsManager;
+    private SwitchPreference mSwitchPref;
+    private WifiSettingsState mWifiSettingsState;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        final Context context = getActivity();
+        mAppBridge = new AppStateChangeWifiStateBridge(context, mState, null);
+        mAppOpsManager = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);
+
+        // find preferences
+        addPreferencesFromResource(R.xml.change_wifi_state_details);
+        mSwitchPref = (SwitchPreference) findPreference(KEY_APP_OPS_SETTINGS_SWITCH);
+
+        // set title/summary for all of them
+        mSwitchPref.setTitle(R.string.change_wifi_state_app_detail_switch);
+
+        // install event listeners
+        mSwitchPref.setOnPreferenceChangeListener(this);
+    }
+
+    @Override
+    protected AlertDialog createDialog(int id, int errorCode) {
+        return null;
+    }
+
+    @Override
+    public int getMetricsCategory() {
+        return MetricsEvent.CONFIGURE_WIFI;
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        if (preference == mSwitchPref) {
+            if (mWifiSettingsState != null && (Boolean) newValue
+                    != mWifiSettingsState.isPermissible()) {
+                setCanChangeWifiState(!mWifiSettingsState.isPermissible());
+                refreshUi();
+            }
+            return true;
+        }
+        return false;
+    }
+
+    private void setCanChangeWifiState(boolean newState) {
+        logSpecialPermissionChange(newState, mPackageName);
+        mAppOpsManager.setMode(AppOpsManager.OP_CHANGE_WIFI_STATE,
+                mPackageInfo.applicationInfo.uid, mPackageName, newState
+                        ? AppOpsManager.MODE_ALLOWED : AppOpsManager.MODE_IGNORED);
+    }
+
+    protected void logSpecialPermissionChange(boolean newState, String packageName) {
+        int logCategory = newState ? MetricsEvent.APP_SPECIAL_PERMISSION_SETTINGS_CHANGE_ALLOW
+                : MetricsEvent.APP_SPECIAL_PERMISSION_SETTINGS_CHANGE_DENY;
+        FeatureFactory.getFactory(getContext()).getMetricsFeatureProvider().action(getContext(),
+                logCategory, packageName);
+    }
+
+    @Override
+    protected boolean refreshUi() {
+        if (mPackageInfo == null || mPackageInfo.applicationInfo == null) {
+            return false;
+        }
+        mWifiSettingsState = mAppBridge.getWifiSettingsInfo(mPackageName,
+                mPackageInfo.applicationInfo.uid);
+
+        boolean canChange = mWifiSettingsState.isPermissible();
+        mSwitchPref.setChecked(canChange);
+        // you can't ask a user for a permission you didn't even declare!
+        mSwitchPref.setEnabled(mWifiSettingsState.permissionDeclared);
+        return true;
+    }
+
+    public static CharSequence getSummary(Context context, AppEntry entry) {
+        WifiSettingsState state;
+        if (entry.extraInfo instanceof WifiSettingsState) {
+            state = (WifiSettingsState) entry.extraInfo;
+        } else if (entry.extraInfo instanceof PermissionState) {
+            state = new WifiSettingsState((PermissionState) entry.extraInfo);
+        } else {
+            state = new AppStateChangeWifiStateBridge(context, null, null).getWifiSettingsInfo(
+                    entry.info.packageName, entry.info.uid);
+        }
+        return getSummary(context, state);
+    }
+
+    public static CharSequence getSummary(Context context, WifiSettingsState wifiSettingsState) {
+        return context.getString(wifiSettingsState.isPermissible()
+                ? R.string.app_permission_summary_allowed
+                : R.string.app_permission_summary_not_allowed);
+    }
+}

tests/robotests/assets/grandfather_not_implementing_indexable

@@ -71,3 +71,4 @@ com.android.settings.ApnEditor
 com.android.settings.UserCredentialsSettings
 com.android.settings.TestingSettings
 com.android.settings.applications.DirectoryAccessDetails
+com.android.settings.wifi.ChangeWifiStateDetails

tests/robotests/src/com/android/settings/wifi/AppStateChangeWifiStateBridgeTest.java

@@ -0,0 +1,81 @@
+/**
+ * Copyright (C) 2018 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.wifi;
+
+import static com.google.common.truth.Truth.assertThat;
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+
+import android.app.AppOpsManager;
+
+import com.android.settings.testutils.SettingsRobolectricTestRunner;
+import com.android.settings.TestConfig;
+import com.android.settingslib.applications.ApplicationsState.AppEntry;
+import com.android.settingslib.applications.ApplicationsState.AppFilter;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RuntimeEnvironment;
+import org.robolectric.annotation.Config;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class AppStateChangeWifiStateBridgeTest {
+
+    @Mock
+    private AppEntry mEntry;
+    @Mock
+    private AppStateChangeWifiStateBridge.WifiSettingsState mState;
+    private Context mContext;
+    private AppFilter mFilter;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+
+        mContext = RuntimeEnvironment.application;
+        mFilter = AppStateChangeWifiStateBridge.FILTER_CHANGE_WIFI_STATE;
+    }
+
+    @Test
+    public void testFilterApp_inputNull_returnFalse() {
+        assertThat(mFilter.filterApp(null)).isFalse();
+    }
+
+    @Test
+    public void testFilterApp_extraInfoNull_returnFalse() {
+        mEntry.extraInfo = null;
+        assertThat(mFilter.filterApp(mEntry)).isFalse();
+    }
+
+    @Test
+    public void testFilterApp_permissionedDeclaredTrue_returnTrue() {
+        mState.permissionDeclared = true;
+        mEntry.extraInfo = mState;
+        assertThat(mFilter.filterApp(mEntry)).isTrue();
+    }
+
+    @Test
+    public void testFilterApp_permissionedDeclaredFalse_returnFalse() {
+        mState.permissionDeclared = false;
+        mEntry.extraInfo = mState;
+        assertThat(mFilter.filterApp(mEntry)).isFalse();
+    }
+}

tests/robotests/src/com/android/settings/wifi/ChangeWifiStateDetailsTest.java

@@ -0,0 +1,93 @@
+/**
+ * Copyright (C) 2018 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.wifi;
+
+import static com.google.common.truth.Truth.assertThat;
+import static org.mockito.ArgumentMatchers.nullable;
+import static org.mockito.Matchers.eq;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+
+import com.android.internal.logging.nano.MetricsProto;
+import com.android.settings.R;
+import com.android.settings.TestConfig;
+import com.android.settings.testutils.FakeFeatureFactory;
+import com.android.settings.testutils.SettingsRobolectricTestRunner;
+
+import com.android.settingslib.applications.ApplicationsState.AppEntry;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RuntimeEnvironment;
+import org.robolectric.annotation.Config;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class ChangeWifiStateDetailsTest {
+    private static final String PACKAGE_NAME = "app";
+    private FakeFeatureFactory mFeatureFactory;
+    private ChangeWifiStateDetails mFragment;
+    private Context mContext;
+
+    @Mock
+    private AppEntry mAppEntry;
+    @Mock
+    private AppStateChangeWifiStateBridge.WifiSettingsState mState;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+
+        mContext = RuntimeEnvironment.application;
+        mFeatureFactory = FakeFeatureFactory.setupForTest();
+        mFragment = new ChangeWifiStateDetails();
+    }
+
+    @Test
+    public void testLogSpecialPermissionChange_setTrue_returnAllow() {
+        mFragment.logSpecialPermissionChange(true /*newState*/, PACKAGE_NAME);
+        verify(mFeatureFactory.metricsFeatureProvider).action(nullable(Context.class),
+                eq(MetricsProto.MetricsEvent.APP_SPECIAL_PERMISSION_SETTINGS_CHANGE_ALLOW),
+                eq(PACKAGE_NAME));
+    }
+
+    @Test
+    public void testLogSpecialPermissionChange_setFalse_returnDeny() {
+        mFragment.logSpecialPermissionChange(false /*newState*/, PACKAGE_NAME);
+        verify(mFeatureFactory.metricsFeatureProvider).action(nullable(Context.class),
+                eq(MetricsProto.MetricsEvent.APP_SPECIAL_PERMISSION_SETTINGS_CHANGE_DENY),
+                eq(PACKAGE_NAME));
+    }
+
+    @Test
+    public void testGetSummary_permissibleTrue_returnAllowed() {
+        when(mState.isPermissible()).thenReturn(true);
+        assertThat(mFragment.getSummary(mContext, mState)).isEqualTo(
+                mContext.getString(R.string.app_permission_summary_allowed));
+    }
+
+    @Test
+    public void testGetSummary_permissibleFalse_returnNotAllowed() {
+        when(mState.isPermissible()).thenReturn(false);
+        assertThat(mFragment.getSummary(mContext, mState)).isEqualTo(
+                mContext.getString(R.string.app_permission_summary_not_allowed));
+    }
+}