Update NetworkSelectSettings page

Clean it up and make it compatiable with all devices. Before this CL
it only used in Pixel 3 with new moderm.

Bug: 114749736
Test: RunSettingsRoboTests
Change-Id: Iad3bc131e294d34cff90b9130715780182adccd7

tests/robotests/assets/grandfather_not_implementing_index_provider

@@ -50,6 +50,7 @@ com.android.settings.inputmethod.SpellCheckersSettings
 com.android.settings.localepicker.LocaleListEditor
 com.android.settings.network.ApnEditor
 com.android.settings.network.ApnSettings
+com.android.settings.network.telephony.NetworkSelectSettings
 com.android.settings.notification.AppNotificationSettings
 com.android.settings.notification.ChannelGroupNotificationSettings
 com.android.settings.notification.ChannelNotificationSettings

tests/robotests/src/com/android/settings/network/telephony/NetworkSelectSettingsTest.java

@@ -0,0 +1,104 @@
+/*
+ * 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.network.telephony;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.telephony.CellInfo;
+import android.telephony.SubscriptionManager;
+import android.telephony.TelephonyManager;
+
+import androidx.preference.PreferenceCategory;
+import androidx.preference.PreferenceManager;
+
+import com.android.settings.testutils.SettingsRobolectricTestRunner;
+
+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 java.util.Arrays;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+public class NetworkSelectSettingsTest {
+    private static final int SUB_ID = 2;
+
+    @Mock
+    private TelephonyManager mTelephonyManager;
+    @Mock
+    private SubscriptionManager mSubscriptionManager;
+    @Mock
+    private CellInfo mCellInfo1;
+    @Mock
+    private CellInfo mCellInfo2;
+    @Mock
+    private PreferenceManager mPreferenceManager;
+    private Context mContext;
+
+    private PreferenceCategory mConnectedPreferenceCategory;
+    private PreferenceCategory mPreferenceCategory;
+
+    private NetworkSelectSettings mNetworkSelectSettings;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+
+        mContext = spy(RuntimeEnvironment.application);
+        when(mContext.getSystemService(Context.TELEPHONY_SERVICE)).thenReturn(mTelephonyManager);
+        when(mContext.getSystemService(SubscriptionManager.class)).thenReturn(mSubscriptionManager);
+        when(mTelephonyManager.createForSubscriptionId(SUB_ID)).thenReturn(mTelephonyManager);
+
+        when(mCellInfo1.isRegistered()).thenReturn(true);
+        when(mCellInfo2.isRegistered()).thenReturn(false);
+
+        mConnectedPreferenceCategory = spy(new PreferenceCategory(mContext));
+        doReturn(mPreferenceManager).when(mConnectedPreferenceCategory).getPreferenceManager();
+        mPreferenceCategory = spy(new PreferenceCategory(mContext));
+        doReturn(mPreferenceManager).when(mPreferenceCategory).getPreferenceManager();
+
+        mNetworkSelectSettings = spy(new NetworkSelectSettings());
+        doReturn(mContext).when(mNetworkSelectSettings).getContext();
+        mNetworkSelectSettings.mTelephonyManager = mTelephonyManager;
+        mNetworkSelectSettings.mConnectedPreferenceCategory = mConnectedPreferenceCategory;
+        mNetworkSelectSettings.mPreferenceCategory = mPreferenceCategory;
+        mNetworkSelectSettings.mCellInfoList = Arrays.asList(mCellInfo1, mCellInfo2);
+    }
+
+    @Test
+    public void updateAllPreferenceCategory_containCorrectPreference() {
+        mNetworkSelectSettings.updateAllPreferenceCategory();
+
+        assertThat(mConnectedPreferenceCategory.getPreferenceCount()).isEqualTo(1);
+        final NetworkOperatorPreference connectedPreference =
+                (NetworkOperatorPreference) mConnectedPreferenceCategory.getPreference(0);
+        assertThat(connectedPreference.getCellInfo()).isEqualTo(mCellInfo1);
+        assertThat(mPreferenceCategory.getPreferenceCount()).isEqualTo(1);
+        final NetworkOperatorPreference preference =
+                (NetworkOperatorPreference) mPreferenceCategory.getPreference(0);
+        assertThat(preference.getCellInfo()).isEqualTo(mCellInfo2);
+    }
+
+}