Merge "Refresh the app's "Conversations" list when there are none" into udc-dev

            return;

        }

        if (!mConversations.isEmpty()) {

            // TODO: if preference has children, compare with newly loaded list

            mPreference.removeAll();

        mPreference.setTitle(getTitleResId());

        populateConversations();

    }

    }

    private void populateConversations() {

        mPreference.removeAll();

        mPreference.setVisible(!mConversations.isEmpty());

        for (ConversationChannelWrapper conversation : mConversations) {

            if (conversation.getNotificationChannel().isDemoted()) {

                continue;

/*

 * Copyright (C) 2023 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.notification.app;

import static android.app.NotificationManager.IMPORTANCE_DEFAULT;

import static com.google.common.truth.Truth.assertThat;

import static org.mockito.ArgumentMatchers.eq;

import static org.mockito.Mockito.when;

import android.app.NotificationChannel;

import android.content.Context;

import android.content.pm.ParceledListSlice;

import android.content.pm.ShortcutInfo;

import android.service.notification.ConversationChannelWrapper;

import androidx.preference.PreferenceCategory;

import androidx.preference.PreferenceManager;

import androidx.preference.PreferenceScreen;

import androidx.test.core.app.ApplicationProvider;

import com.android.settings.notification.NotificationBackend;

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.shadows.ShadowApplication;

import java.util.ArrayList;

import java.util.Arrays;

@RunWith(RobolectricTestRunner.class)

public class AppConversationListPreferenceControllerTest {

    private Context mContext;

    @Mock

    private NotificationBackend mBackend;

    private AppConversationListPreferenceController mController;

    private NotificationBackend.AppRow mAppRow;

    private PreferenceCategory mPreference;

    @Before

    public void setUp() {

        MockitoAnnotations.initMocks(this);

        mContext = ApplicationProvider.getApplicationContext();

        mAppRow = new NotificationBackend.AppRow();

        mAppRow.uid = 42;

        mAppRow.pkg = "com.example.exampling";

        mController = new AppConversationListPreferenceController(mContext, mBackend);

        mController.onResume(mAppRow, null, null, null, null, null, new ArrayList<>());

        mPreference = new PreferenceCategory(mContext);

        PreferenceManager preferenceManager = new PreferenceManager(mContext);

        PreferenceScreen preferenceScreen = preferenceManager.createPreferenceScreen(mContext);

        preferenceScreen.addPreference(mPreference);

    }

    @Test

    public void updateState_someConversations_loadsConversations() {

        when(mBackend.getConversations(eq(mAppRow.pkg), eq(mAppRow.uid))).thenReturn(

                conversationList(

                        conversationChannel("1", "msg", "Mario", "Messages", "M", false),

                        conversationChannel("2", "msg", "Luigi", "Messages", "L", false)

                ));

        mController.updateState(mPreference);

        ShadowApplication.runBackgroundTasks();

        assertThat(mPreference.isVisible()).isTrue();

        assertThat(mPreference.getPreferenceCount()).isEqualTo(2);

        assertThat(mPreference.getPreference(0).getTitle().toString()).isEqualTo("Mario");

        assertThat(mPreference.getPreference(0).getSummary().toString()).isEqualTo("Messages");

        assertThat(mPreference.getPreference(1).getTitle().toString()).isEqualTo("Luigi");

        assertThat(mPreference.getPreference(1).getSummary().toString()).isEqualTo("Messages");

    }

    @Test

    public void updateState_someConversations_loadsNotDemotedOnly() {

        when(mBackend.getConversations(eq(mAppRow.pkg), eq(mAppRow.uid)))

                .thenReturn(conversationList(

                        conversationChannel("1", "msg", "Mario", "Messages", "M", false),

                        conversationChannel("2", "msg", "Luigi", "Messages", "L", true)

                ));

        mController.updateState(mPreference);

        ShadowApplication.runBackgroundTasks();

        assertThat(mPreference.isVisible()).isTrue();

        assertThat(mPreference.getPreferenceCount()).isEqualTo(1);

        assertThat(mPreference.getPreference(0).getTitle().toString()).isEqualTo("Mario");

    }

    @Test

    public void updateState_noConversations_hides() {

        when(mBackend.getConversations(eq(mAppRow.pkg), eq(mAppRow.uid)))

                .thenReturn(conversationList());

        mController.updateState(mPreference);

        assertThat(mPreference.isVisible()).isFalse();

        assertThat(mPreference.getPreferenceCount()).isEqualTo(0);

    }

    @Test

    public void updateState_refreshes() {

        when(mBackend.getConversations(eq(mAppRow.pkg), eq(mAppRow.uid)))

                .thenReturn(conversationList());

        mController.updateState(mPreference);

        assertThat(mPreference.isVisible()).isFalse();

        // Empty -> present

        when(mBackend.getConversations(eq(mAppRow.pkg), eq(mAppRow.uid)))

                .thenReturn(conversationList(

                        conversationChannel("1", "msg", "Mario", "Messages", "M", false)

                ));

        mController.updateState(mPreference);

        assertThat(mPreference.isVisible()).isTrue();

        assertThat(mPreference.getPreferenceCount()).isEqualTo(1);

        // Present -> empty

        when(mBackend.getConversations(eq(mAppRow.pkg), eq(mAppRow.uid)))

                .thenReturn(conversationList());

        mController.updateState(mPreference);

        assertThat(mPreference.isVisible()).isFalse();

        assertThat(mPreference.getPreferenceCount()).isEqualTo(0);

    }

    private static ParceledListSlice<ConversationChannelWrapper> conversationList(

            ConversationChannelWrapper... channels) {

        return new ParceledListSlice<>(Arrays.asList(channels));

    }

    private ConversationChannelWrapper conversationChannel(String id, String parentId,

            String shortcutName, String parentLabel, String shortcutId, boolean demoted) {

        NotificationChannel channel = new NotificationChannel(id, "Channel", IMPORTANCE_DEFAULT);

        channel.setDemoted(demoted);

        channel.setConversationId(parentId, shortcutId);

        ShortcutInfo shortcutInfo = new ShortcutInfo.Builder(mContext, shortcutId).setLongLabel(

                shortcutName).build();

        ConversationChannelWrapper ccw = new ConversationChannelWrapper();

        ccw.setPkg(mAppRow.pkg);

        ccw.setUid(mAppRow.uid);

        ccw.setNotificationChannel(channel);

        ccw.setShortcutInfo(shortcutInfo);

        ccw.setParentChannelLabel(parentLabel);

        return ccw;

    }

}