| /* |
| * Copyright (C) 2015 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.tv.recommendation; |
| |
| import static android.support.test.InstrumentationRegistry.getContext; |
| import static org.junit.Assert.assertEquals; |
| |
| import android.support.test.filters.SmallTest; |
| |
| import com.android.tv.testing.Utils; |
| |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import java.util.Random; |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * Unit tests for {@link ChannelRecord}. |
| */ |
| @SmallTest |
| public class ChannelRecordTest { |
| private static final int CHANNEL_RECORD_MAX_HISTORY_SIZE = ChannelRecord.MAX_HISTORY_SIZE; |
| |
| private Random mRandom; |
| private ChannelRecord mChannelRecord; |
| private long mLatestWatchEndTimeMs; |
| |
| @Before |
| public void setUp() { |
| mLatestWatchEndTimeMs = System.currentTimeMillis() - TimeUnit.DAYS.toMillis(1); |
| mChannelRecord = new ChannelRecord(getContext(), null, false); |
| mRandom = Utils.createTestRandom(); |
| } |
| |
| @Test |
| public void testGetLastWatchEndTime_noHistory() { |
| assertEquals(0, mChannelRecord.getLastWatchEndTimeMs()); |
| } |
| |
| @Test |
| public void testGetLastWatchEndTime_oneHistory() { |
| addWatchLog(); |
| |
| assertEquals(mLatestWatchEndTimeMs, mChannelRecord.getLastWatchEndTimeMs()); |
| } |
| |
| @Test |
| public void testGetLastWatchEndTime_maxHistories() { |
| for (int i = 0; i < CHANNEL_RECORD_MAX_HISTORY_SIZE; ++i) { |
| addWatchLog(); |
| } |
| |
| assertEquals(mLatestWatchEndTimeMs, mChannelRecord.getLastWatchEndTimeMs()); |
| } |
| |
| @Test |
| public void testGetLastWatchEndTime_moreThanMaxHistories() { |
| for (int i = 0; i < CHANNEL_RECORD_MAX_HISTORY_SIZE + 1; ++i) { |
| addWatchLog(); |
| } |
| |
| assertEquals(mLatestWatchEndTimeMs, mChannelRecord.getLastWatchEndTimeMs()); |
| } |
| |
| @Test |
| public void testGetTotalWatchDuration_noHistory() { |
| assertEquals(0, mChannelRecord.getTotalWatchDurationMs()); |
| } |
| |
| @Test |
| public void testGetTotalWatchDuration_oneHistory() { |
| long durationMs = addWatchLog(); |
| |
| assertEquals(durationMs, mChannelRecord.getTotalWatchDurationMs()); |
| } |
| |
| @Test |
| public void testGetTotalWatchDuration_maxHistories() { |
| long totalWatchTimeMs = 0; |
| for (int i = 0; i < CHANNEL_RECORD_MAX_HISTORY_SIZE; ++i) { |
| long durationMs = addWatchLog(); |
| totalWatchTimeMs += durationMs; |
| } |
| |
| assertEquals(totalWatchTimeMs, mChannelRecord.getTotalWatchDurationMs()); |
| } |
| |
| @Test |
| public void testGetTotalWatchDuration_moreThanMaxHistories() { |
| long totalWatchTimeMs = 0; |
| long firstDurationMs = 0; |
| for (int i = 0; i < CHANNEL_RECORD_MAX_HISTORY_SIZE + 1; ++i) { |
| long durationMs = addWatchLog(); |
| totalWatchTimeMs += durationMs; |
| if (i == 0) { |
| firstDurationMs = durationMs; |
| } |
| } |
| |
| // Only latest CHANNEL_RECORD_MAX_HISTORY_SIZE logs are remained. |
| assertEquals(totalWatchTimeMs - firstDurationMs, mChannelRecord.getTotalWatchDurationMs()); |
| } |
| |
| /** |
| * Add new log history to channelRecord which its duration is lower than 1 minute. |
| * |
| * @return New watch log's duration time in milliseconds. |
| */ |
| private long addWatchLog() { |
| // Time hopping with random seconds. |
| mLatestWatchEndTimeMs += TimeUnit.SECONDS.toMillis(mRandom.nextInt(60) + 1); |
| |
| long durationMs = TimeUnit.SECONDS.toMillis(mRandom.nextInt(60) + 1); |
| mChannelRecord.logWatchHistory(new WatchedProgram(null, |
| mLatestWatchEndTimeMs, mLatestWatchEndTimeMs + durationMs)); |
| mLatestWatchEndTimeMs += durationMs; |
| |
| return durationMs; |
| } |
| } |