Fix "Turn on phone calls" for guest user

Move "Turn on phone calls" from guest detail user screen to user screen.
Optimisation: Applying restrictions to default guest user has been moved
to UserManagerService -> setDefaultGuestRestrictions.

Following UX there is no need for confirmation dialog.

Bug: 191483069
Test: make RunSettingsRoboTests -j128 ROBOTEST_FILTER="com.android.settings.users.GuestTelephonyPreferenceControllerTest"
       make RunSettingsRoboTests -j128 ROBOTEST_FILTER="com.android.settings.users.UserSettingsTest"
Change-Id: Id7391d3f85954ea7f9c94791f24174105ec8073e

tests/robotests/src/com/android/settings/users/GuestTelephonyPreferenceControllerTest.java

@@ -0,0 +1,150 @@
+/*
+ * Copyright (C) 2022 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.users;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Answers.RETURNS_DEEP_STUBS;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.os.SystemProperties;
+import android.os.UserManager;
+
+import androidx.preference.PreferenceScreen;
+
+import com.android.settings.testutils.shadow.ShadowDevicePolicyManager;
+import com.android.settings.testutils.shadow.ShadowUserManager;
+import com.android.settingslib.RestrictedSwitchPreference;
+
+import org.junit.After;
+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.RuntimeEnvironment;
+import org.robolectric.annotation.Config;
+
+@RunWith(RobolectricTestRunner.class)
+@Config(shadows = {
+        ShadowUserManager.class,
+        ShadowDevicePolicyManager.class
+})
+public class GuestTelephonyPreferenceControllerTest {
+
+    @Mock(answer = RETURNS_DEEP_STUBS)
+    private PreferenceScreen mScreen;
+
+    @Mock(answer = RETURNS_DEEP_STUBS)
+    private Context mContext;
+    private ShadowUserManager mUserManager;
+    private ShadowDevicePolicyManager mDpm;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mContext = RuntimeEnvironment.application;
+        mUserManager = ShadowUserManager.getShadow();
+        mUserManager.setSupportsMultipleUsers(true);
+        mDpm = ShadowDevicePolicyManager.getShadow();
+    }
+
+    @After
+    public void tearDown() {
+        ShadowUserManager.reset();
+    }
+
+    @Test
+    public void displayPref_NotAdmin_shouldNotDisplay() {
+        mUserManager.setIsAdminUser(false);
+
+        final GuestTelephonyPreferenceController controller =
+                new GuestTelephonyPreferenceController(mContext, "fake_key");
+        final RestrictedSwitchPreference preference = mock(RestrictedSwitchPreference.class);
+
+        when(preference.getKey()).thenReturn(controller.getPreferenceKey());
+        when(mScreen.findPreference(preference.getKey())).thenReturn(preference);
+
+        controller.displayPreference(mScreen);
+
+        verify(preference).setVisible(false);
+    }
+
+    @Test
+    public void updateState_NotAdmin_shouldNotDisplayPreference() {
+        mUserManager.setIsAdminUser(false);
+
+        final GuestTelephonyPreferenceController controller =
+                new GuestTelephonyPreferenceController(mContext, "fake_key");
+        final RestrictedSwitchPreference preference = mock(RestrictedSwitchPreference.class);
+
+        controller.updateState(preference);
+
+        verify(preference).setVisible(false);
+    }
+
+    @Test
+    public void updateState_Admin_shouldDisplayPreference() {
+        SystemProperties.set("fw.max_users", Long.toBinaryString(4));
+        mDpm.setDeviceOwner(null);
+        mUserManager.setIsAdminUser(true);
+        mUserManager.setUserSwitcherEnabled(true);
+        mUserManager.setSupportsMultipleUsers(true);
+        mUserManager.setUserTypeEnabled(UserManager.USER_TYPE_FULL_RESTRICTED, true);
+        mUserManager.setUserTypeEnabled(UserManager.USER_TYPE_FULL_SYSTEM, true);
+        mUserManager.setUserTypeEnabled(UserManager.USER_TYPE_FULL_GUEST, true);
+
+        final GuestTelephonyPreferenceController controller =
+                new GuestTelephonyPreferenceController(mContext, "fake_key");
+        final RestrictedSwitchPreference preference = mock(RestrictedSwitchPreference.class);
+
+        controller.updateState(preference);
+
+        verify(preference).setVisible(true);
+    }
+
+    @Test
+    public void setChecked_Guest_hasNoCallRestriction() {
+        mUserManager.setIsAdminUser(true);
+
+        final GuestTelephonyPreferenceController controller =
+                new GuestTelephonyPreferenceController(mContext, "fake_key");
+
+        controller.setChecked(true);
+
+        assertThat(mUserManager.hasGuestUserRestriction("no_outgoing_calls", false)).isTrue();
+        assertThat(mUserManager.hasGuestUserRestriction("no_sms", true)).isTrue();
+    }
+
+    @Test
+    public void setUnchecked_Guest_hasCallRestriction() {
+        mUserManager.setIsAdminUser(true);
+
+        final GuestTelephonyPreferenceController controller =
+                new GuestTelephonyPreferenceController(mContext, "fake_key");
+
+        controller.setChecked(false);
+
+        assertThat(mUserManager.hasGuestUserRestriction("no_outgoing_calls", true)).isTrue();
+        assertThat(mUserManager.hasGuestUserRestriction("no_sms", true)).isTrue();
+    }
+
+}