Add a switchbar to turn off multi-user feature entirely

Change-Id: Ibf88bf37899af5065c68aeb2337acd4ee48bc13c
Fixes: 72319180
Test: robotest on new controller. Manual test on UserSettings fragment.

tests/robotests/src/com/android/settings/testutils/shadow/ShadowUserManager.java

@@ -47,6 +47,8 @@ public class ShadowUserManager extends org.robolectric.shadows.ShadowUserManager
     private final Set<Integer> mManagedProfiles = new HashSet<>();
     private boolean mIsQuietModeEnabled = false;
     private int[] profileIdsForUser;
+    private boolean mUserSwitchEnabled;
+
 
     @Resetter
     public void reset() {
@@ -56,6 +58,7 @@ public class ShadowUserManager extends org.robolectric.shadows.ShadowUserManager
         mRestrictionSources.clear();
         mManagedProfiles.clear();
         mIsQuietModeEnabled = false;
+        mUserSwitchEnabled = false;
     }
 
     public void setUserInfo(int userHandle, UserInfo userInfo) {
@@ -136,4 +139,13 @@ public class ShadowUserManager extends org.robolectric.shadows.ShadowUserManager
     public void setProfileIdsWithDisabled(int[] profileIds) {
         profileIdsForUser = profileIds;
     }
+
+    @Implementation
+    public boolean isUserSwitcherEnabled() {
+        return mUserSwitchEnabled;
+    }
+
+    public void setUserSwitcherEnabled(boolean userSwitchEnabled) {
+        mUserSwitchEnabled = userSwitchEnabled;
+    }
 }

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

@@ -17,58 +17,59 @@ 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.Matchers.anyInt;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
-import androidx.lifecycle.LifecycleOwner;
 import android.content.Context;
 import android.content.pm.UserInfo;
-import android.os.UserManager;
 import android.provider.Settings.Global;
-import androidx.preference.PreferenceScreen;
 
 import com.android.settings.testutils.SettingsRobolectricTestRunner;
+import com.android.settings.testutils.shadow.ShadowUserManager;
 import com.android.settingslib.RestrictedSwitchPreference;
-import com.android.settingslib.core.lifecycle.Lifecycle;
 
+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.annotation.Config;
 import org.robolectric.shadows.ShadowApplication;
 
+import androidx.preference.PreferenceScreen;
+
 @RunWith(SettingsRobolectricTestRunner.class)
+@Config(shadows = {ShadowUserManager.class})
 public class AddUserWhenLockedPreferenceControllerTest {
 
     @Mock(answer = RETURNS_DEEP_STUBS)
     private PreferenceScreen mScreen;
     @Mock(answer = RETURNS_DEEP_STUBS)
     private UserInfo mUserInfo;
-    @Mock(answer = RETURNS_DEEP_STUBS)
-    private UserManager mUserManager;
 
-    private LifecycleOwner mLifecycleOwner;
-    private Lifecycle mLifecycle;
     private Context mContext;
+    private ShadowUserManager mUserManager;
     private AddUserWhenLockedPreferenceController mController;
 
     @Before
     public void setUp() {
         MockitoAnnotations.initMocks(this);
         ShadowApplication shadowContext = ShadowApplication.getInstance();
-        shadowContext.setSystemService(Context.USER_SERVICE, mUserManager);
+        mUserManager = ShadowUserManager.getShadow();
         mContext = shadowContext.getApplicationContext();
-        mLifecycleOwner = () -> mLifecycle;
-        mLifecycle = new Lifecycle(mLifecycleOwner);
-        mController = new AddUserWhenLockedPreferenceController(mContext, "fake_key", mLifecycle);
+        mController = new AddUserWhenLockedPreferenceController(mContext, "fake_key");
+    }
+
+    @After
+    public void tearDown() {
+        mUserManager.reset();
     }
 
     @Test
     public void displayPref_NotAdmin_shouldNotDisplay() {
-        when(mUserManager.getUserInfo(anyInt())).thenReturn(mUserInfo);
+        mUserManager.setUserInfo(0, mUserInfo);
         when(mUserInfo.isAdmin()).thenReturn(false);
         final RestrictedSwitchPreference preference = mock(RestrictedSwitchPreference.class);
         when(preference.getKey()).thenReturn(mController.getPreferenceKey());

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

@@ -0,0 +1,59 @@
+/*
+ * 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.users;
+
+import static com.android.settings.core.BasePreferenceController.AVAILABLE_UNSEARCHABLE;
+import static com.android.settings.core.BasePreferenceController.DISABLED_FOR_USER;
+import static com.google.common.truth.Truth.assertThat;
+
+import android.content.Context;
+
+import com.android.settings.testutils.SettingsRobolectricTestRunner;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RuntimeEnvironment;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+public class MultiUserFooterPreferenceControllerTest {
+
+    private Context mContext;
+    private MultiUserFooterPreferenceController mController;
+
+    @Before
+    public void setUp() {
+        mContext = RuntimeEnvironment.application;
+        mController = new MultiUserFooterPreferenceController(mContext);
+    }
+
+    @Test
+    public void getAvailabilityStatus_multiUserOff_shouldReturnEnabled() {
+        mController.mUserCaps.mEnabled = true;
+        mController.mUserCaps.mUserSwitcherEnabled = false;
+
+        assertThat(mController.getAvailabilityStatus()).isEqualTo(AVAILABLE_UNSEARCHABLE);
+    }
+
+    @Test
+    public void getAvailabilityStatus_multiUserOn_shouldReturnDisabled() {
+        mController.mUserCaps.mEnabled = true;
+        mController.mUserCaps.mUserSwitcherEnabled = true;
+
+        assertThat(mController.getAvailabilityStatus()).isEqualTo(DISABLED_FOR_USER);
+    }
+}

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

@@ -17,36 +17,43 @@
 package com.android.settings.users;
 
 import static com.google.common.truth.Truth.assertThat;
-import static org.mockito.Mockito.when;
 
 import android.content.Context;
+import android.os.UserHandle;
 import android.os.UserManager;
 
 import com.android.settings.testutils.SettingsRobolectricTestRunner;
+import com.android.settings.testutils.shadow.ShadowUserManager;
 
+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.RuntimeEnvironment;
+import org.robolectric.annotation.Config;
 
 @RunWith(SettingsRobolectricTestRunner.class)
+@Config(shadows = {ShadowUserManager.class})
 public class UserCapabilitiesTest {
 
-    @Mock
     private Context mContext;
-    @Mock
-    private UserManager mUserManager;
+    private ShadowUserManager mUserManager;
 
     @Before
     public void setUp() {
-        MockitoAnnotations.initMocks(this);
-        when(mContext.getSystemService(Context.USER_SERVICE)).thenReturn(mUserManager);
+        mContext = RuntimeEnvironment.application;
+        mUserManager = ShadowUserManager.getShadow();
+    }
+
+    @After
+    public void tearDown() {
+        mUserManager.reset();
     }
 
     @Test
-    public void disallowUserSwitchWhenRestrictionIsSet() {
-        when(mUserManager.hasUserRestriction(UserManager.DISALLOW_USER_SWITCH)).thenReturn(true);
+    public void disallowUserSwitch_restrictionIsSet_true() {
+        mUserManager.setUserRestriction(UserHandle.of(UserHandle.myUserId()),
+                UserManager.DISALLOW_USER_SWITCH, true);
 
         UserCapabilities userCapabilities = UserCapabilities.create(mContext);
         userCapabilities.updateAddUserCapabilities(mContext);
@@ -55,12 +62,33 @@ public class UserCapabilitiesTest {
     }
 
     @Test
-    public void allowUserSwitchWhenRestrictionIsNotSet() {
-        when(mUserManager.hasUserRestriction(UserManager.DISALLOW_USER_SWITCH)).thenReturn(false);
+    public void disallowUserSwitch_restrictionIsNotSet_false() {
+        mUserManager.setUserRestriction(UserHandle.of(UserHandle.myUserId()),
+                UserManager.DISALLOW_USER_SWITCH, false);
 
         UserCapabilities userCapabilities = UserCapabilities.create(mContext);
         userCapabilities.updateAddUserCapabilities(mContext);
 
         assertThat(userCapabilities.mDisallowSwitchUser).isFalse();
     }
+
+    @Test
+    public void userSwitchEnabled_off() {
+        mUserManager.setUserSwitcherEnabled(false);
+
+        final UserCapabilities userCapabilities = UserCapabilities.create(mContext);
+        userCapabilities.updateAddUserCapabilities(mContext);
+
+        assertThat(userCapabilities.mUserSwitcherEnabled).isFalse();
+    }
+
+    @Test
+    public void userSwitchEnabled_on() {
+        mUserManager.setUserSwitcherEnabled(true);
+
+        final UserCapabilities userCapabilities = UserCapabilities.create(mContext);
+        userCapabilities.updateAddUserCapabilities(mContext);
+
+        assertThat(userCapabilities.mUserSwitcherEnabled).isTrue();
+    }
 }