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/*
* 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;
}
}
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