diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/net/java/android/net/NetworkStatsHistoryTest.java | 620 |
1 files changed, 620 insertions, 0 deletions
diff --git a/tests/net/java/android/net/NetworkStatsHistoryTest.java b/tests/net/java/android/net/NetworkStatsHistoryTest.java new file mode 100644 index 000000000000..96529a681cb4 --- /dev/null +++ b/tests/net/java/android/net/NetworkStatsHistoryTest.java @@ -0,0 +1,620 @@ +/* + * Copyright (C) 2011 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 android.net; + +import static android.net.NetworkStatsHistory.DataStreamUtils.readVarLong; +import static android.net.NetworkStatsHistory.DataStreamUtils.writeVarLong; +import static android.net.NetworkStatsHistory.Entry.UNKNOWN; +import static android.net.NetworkStatsHistory.FIELD_ALL; +import static android.net.NetworkStatsHistory.FIELD_OPERATIONS; +import static android.net.NetworkStatsHistory.FIELD_RX_BYTES; +import static android.net.NetworkStatsHistory.FIELD_RX_PACKETS; +import static android.net.NetworkStatsHistory.FIELD_TX_BYTES; +import static android.net.NetworkStatsHistory.multiplySafe; +import static android.net.TrafficStats.GB_IN_BYTES; +import static android.net.TrafficStats.MB_IN_BYTES; +import static android.text.format.DateUtils.DAY_IN_MILLIS; +import static android.text.format.DateUtils.HOUR_IN_MILLIS; +import static android.text.format.DateUtils.MINUTE_IN_MILLIS; +import static android.text.format.DateUtils.SECOND_IN_MILLIS; +import static android.text.format.DateUtils.WEEK_IN_MILLIS; +import static android.text.format.DateUtils.YEAR_IN_MILLIS; + +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertFalse; +import static org.junit.Assert.assertTrue; + +import android.content.Context; +import android.util.Log; + +import androidx.test.InstrumentationRegistry; +import androidx.test.filters.SmallTest; +import androidx.test.runner.AndroidJUnit4; + +import com.android.frameworks.tests.net.R; + +import org.junit.After; +import org.junit.Test; +import org.junit.runner.RunWith; + +import java.io.ByteArrayInputStream; +import java.io.ByteArrayOutputStream; +import java.io.DataInputStream; +import java.io.DataOutputStream; +import java.util.Random; + +@RunWith(AndroidJUnit4.class) +@SmallTest +public class NetworkStatsHistoryTest { + private static final String TAG = "NetworkStatsHistoryTest"; + + private static final long TEST_START = 1194220800000L; + + private NetworkStatsHistory stats; + + @After + public void tearDown() throws Exception { + if (stats != null) { + assertConsistent(stats); + } + } + + @Test + public void testReadOriginalVersion() throws Exception { + final Context context = InstrumentationRegistry.getContext(); + final DataInputStream in = + new DataInputStream(context.getResources().openRawResource(R.raw.history_v1)); + + NetworkStatsHistory.Entry entry = null; + try { + final NetworkStatsHistory history = new NetworkStatsHistory(in); + assertEquals(15 * SECOND_IN_MILLIS, history.getBucketDuration()); + + entry = history.getValues(0, entry); + assertEquals(29143L, entry.rxBytes); + assertEquals(6223L, entry.txBytes); + + entry = history.getValues(history.size() - 1, entry); + assertEquals(1476L, entry.rxBytes); + assertEquals(838L, entry.txBytes); + + entry = history.getValues(Long.MIN_VALUE, Long.MAX_VALUE, entry); + assertEquals(332401L, entry.rxBytes); + assertEquals(64314L, entry.txBytes); + + } finally { + in.close(); + } + } + + @Test + public void testRecordSingleBucket() throws Exception { + final long BUCKET_SIZE = HOUR_IN_MILLIS; + stats = new NetworkStatsHistory(BUCKET_SIZE); + + // record data into narrow window to get single bucket + stats.recordData(TEST_START, TEST_START + SECOND_IN_MILLIS, + new NetworkStats.Entry(1024L, 10L, 2048L, 20L, 2L)); + + assertEquals(1, stats.size()); + assertValues(stats, 0, SECOND_IN_MILLIS, 1024L, 10L, 2048L, 20L, 2L); + } + + @Test + public void testRecordEqualBuckets() throws Exception { + final long bucketDuration = HOUR_IN_MILLIS; + stats = new NetworkStatsHistory(bucketDuration); + + // split equally across two buckets + final long recordStart = TEST_START + (bucketDuration / 2); + stats.recordData(recordStart, recordStart + bucketDuration, + new NetworkStats.Entry(1024L, 10L, 128L, 2L, 2L)); + + assertEquals(2, stats.size()); + assertValues(stats, 0, HOUR_IN_MILLIS / 2, 512L, 5L, 64L, 1L, 1L); + assertValues(stats, 1, HOUR_IN_MILLIS / 2, 512L, 5L, 64L, 1L, 1L); + } + + @Test + public void testRecordTouchingBuckets() throws Exception { + final long BUCKET_SIZE = 15 * MINUTE_IN_MILLIS; + stats = new NetworkStatsHistory(BUCKET_SIZE); + + // split almost completely into middle bucket, but with a few minutes + // overlap into neighboring buckets. total record is 20 minutes. + final long recordStart = (TEST_START + BUCKET_SIZE) - MINUTE_IN_MILLIS; + final long recordEnd = (TEST_START + (BUCKET_SIZE * 2)) + (MINUTE_IN_MILLIS * 4); + stats.recordData(recordStart, recordEnd, + new NetworkStats.Entry(1000L, 2000L, 5000L, 10000L, 100L)); + + assertEquals(3, stats.size()); + // first bucket should have (1/20 of value) + assertValues(stats, 0, MINUTE_IN_MILLIS, 50L, 100L, 250L, 500L, 5L); + // second bucket should have (15/20 of value) + assertValues(stats, 1, 15 * MINUTE_IN_MILLIS, 750L, 1500L, 3750L, 7500L, 75L); + // final bucket should have (4/20 of value) + assertValues(stats, 2, 4 * MINUTE_IN_MILLIS, 200L, 400L, 1000L, 2000L, 20L); + } + + @Test + public void testRecordGapBuckets() throws Exception { + final long BUCKET_SIZE = HOUR_IN_MILLIS; + stats = new NetworkStatsHistory(BUCKET_SIZE); + + // record some data today and next week with large gap + final long firstStart = TEST_START; + final long lastStart = TEST_START + WEEK_IN_MILLIS; + stats.recordData(firstStart, firstStart + SECOND_IN_MILLIS, + new NetworkStats.Entry(128L, 2L, 256L, 4L, 1L)); + stats.recordData(lastStart, lastStart + SECOND_IN_MILLIS, + new NetworkStats.Entry(64L, 1L, 512L, 8L, 2L)); + + // we should have two buckets, far apart from each other + assertEquals(2, stats.size()); + assertValues(stats, 0, SECOND_IN_MILLIS, 128L, 2L, 256L, 4L, 1L); + assertValues(stats, 1, SECOND_IN_MILLIS, 64L, 1L, 512L, 8L, 2L); + + // now record something in middle, spread across two buckets + final long middleStart = TEST_START + DAY_IN_MILLIS; + final long middleEnd = middleStart + (HOUR_IN_MILLIS * 2); + stats.recordData(middleStart, middleEnd, + new NetworkStats.Entry(2048L, 4L, 2048L, 4L, 2L)); + + // now should have four buckets, with new record in middle two buckets + assertEquals(4, stats.size()); + assertValues(stats, 0, SECOND_IN_MILLIS, 128L, 2L, 256L, 4L, 1L); + assertValues(stats, 1, HOUR_IN_MILLIS, 1024L, 2L, 1024L, 2L, 1L); + assertValues(stats, 2, HOUR_IN_MILLIS, 1024L, 2L, 1024L, 2L, 1L); + assertValues(stats, 3, SECOND_IN_MILLIS, 64L, 1L, 512L, 8L, 2L); + } + + @Test + public void testRecordOverlapBuckets() throws Exception { + final long BUCKET_SIZE = HOUR_IN_MILLIS; + stats = new NetworkStatsHistory(BUCKET_SIZE); + + // record some data in one bucket, and another overlapping buckets + stats.recordData(TEST_START, TEST_START + SECOND_IN_MILLIS, + new NetworkStats.Entry(256L, 2L, 256L, 2L, 1L)); + final long midStart = TEST_START + (HOUR_IN_MILLIS / 2); + stats.recordData(midStart, midStart + HOUR_IN_MILLIS, + new NetworkStats.Entry(1024L, 10L, 1024L, 10L, 10L)); + + // should have two buckets, with some data mixed together + assertEquals(2, stats.size()); + assertValues(stats, 0, SECOND_IN_MILLIS + (HOUR_IN_MILLIS / 2), 768L, 7L, 768L, 7L, 6L); + assertValues(stats, 1, (HOUR_IN_MILLIS / 2), 512L, 5L, 512L, 5L, 5L); + } + + @Test + public void testRecordEntireGapIdentical() throws Exception { + // first, create two separate histories far apart + final NetworkStatsHistory stats1 = new NetworkStatsHistory(HOUR_IN_MILLIS); + stats1.recordData(TEST_START, TEST_START + 2 * HOUR_IN_MILLIS, 2000L, 1000L); + + final long TEST_START_2 = TEST_START + DAY_IN_MILLIS; + final NetworkStatsHistory stats2 = new NetworkStatsHistory(HOUR_IN_MILLIS); + stats2.recordData(TEST_START_2, TEST_START_2 + 2 * HOUR_IN_MILLIS, 1000L, 500L); + + // combine together with identical bucket size + stats = new NetworkStatsHistory(HOUR_IN_MILLIS); + stats.recordEntireHistory(stats1); + stats.recordEntireHistory(stats2); + + // first verify that totals match up + assertValues(stats, TEST_START - WEEK_IN_MILLIS, TEST_START + WEEK_IN_MILLIS, 3000L, 1500L); + + // now inspect internal buckets + assertValues(stats, 0, 1000L, 500L); + assertValues(stats, 1, 1000L, 500L); + assertValues(stats, 2, 500L, 250L); + assertValues(stats, 3, 500L, 250L); + } + + @Test + public void testRecordEntireOverlapVaryingBuckets() throws Exception { + // create history just over hour bucket boundary + final NetworkStatsHistory stats1 = new NetworkStatsHistory(HOUR_IN_MILLIS); + stats1.recordData(TEST_START, TEST_START + MINUTE_IN_MILLIS * 60, 600L, 600L); + + final long TEST_START_2 = TEST_START + MINUTE_IN_MILLIS; + final NetworkStatsHistory stats2 = new NetworkStatsHistory(MINUTE_IN_MILLIS); + stats2.recordData(TEST_START_2, TEST_START_2 + MINUTE_IN_MILLIS * 5, 50L, 50L); + + // combine together with minute bucket size + stats = new NetworkStatsHistory(MINUTE_IN_MILLIS); + stats.recordEntireHistory(stats1); + stats.recordEntireHistory(stats2); + + // first verify that totals match up + assertValues(stats, TEST_START - WEEK_IN_MILLIS, TEST_START + WEEK_IN_MILLIS, 650L, 650L); + + // now inspect internal buckets + assertValues(stats, 0, 10L, 10L); + assertValues(stats, 1, 20L, 20L); + assertValues(stats, 2, 20L, 20L); + assertValues(stats, 3, 20L, 20L); + assertValues(stats, 4, 20L, 20L); + assertValues(stats, 5, 20L, 20L); + assertValues(stats, 6, 10L, 10L); + + // now combine using 15min buckets + stats = new NetworkStatsHistory(HOUR_IN_MILLIS / 4); + stats.recordEntireHistory(stats1); + stats.recordEntireHistory(stats2); + + // first verify that totals match up + assertValues(stats, TEST_START - WEEK_IN_MILLIS, TEST_START + WEEK_IN_MILLIS, 650L, 650L); + + // and inspect buckets + assertValues(stats, 0, 200L, 200L); + assertValues(stats, 1, 150L, 150L); + assertValues(stats, 2, 150L, 150L); + assertValues(stats, 3, 150L, 150L); + } + + @Test + public void testRemove() throws Exception { + stats = new NetworkStatsHistory(HOUR_IN_MILLIS); + + // record some data across 24 buckets + stats.recordData(TEST_START, TEST_START + DAY_IN_MILLIS, 24L, 24L); + assertEquals(24, stats.size()); + + // try removing invalid data; should be no change + stats.removeBucketsBefore(0 - DAY_IN_MILLIS); + assertEquals(24, stats.size()); + + // try removing far before buckets; should be no change + stats.removeBucketsBefore(TEST_START - YEAR_IN_MILLIS); + assertEquals(24, stats.size()); + + // try removing just moments into first bucket; should be no change + // since that bucket contains data beyond the cutoff + stats.removeBucketsBefore(TEST_START + SECOND_IN_MILLIS); + assertEquals(24, stats.size()); + + // try removing single bucket + stats.removeBucketsBefore(TEST_START + HOUR_IN_MILLIS); + assertEquals(23, stats.size()); + + // try removing multiple buckets + stats.removeBucketsBefore(TEST_START + (4 * HOUR_IN_MILLIS)); + assertEquals(20, stats.size()); + + // try removing all buckets + stats.removeBucketsBefore(TEST_START + YEAR_IN_MILLIS); + assertEquals(0, stats.size()); + } + + @Test + public void testTotalData() throws Exception { + final long BUCKET_SIZE = HOUR_IN_MILLIS; + stats = new NetworkStatsHistory(BUCKET_SIZE); + + // record uniform data across day + stats.recordData(TEST_START, TEST_START + DAY_IN_MILLIS, 2400L, 4800L); + + // verify that total outside range is 0 + assertValues(stats, TEST_START - WEEK_IN_MILLIS, TEST_START - DAY_IN_MILLIS, 0L, 0L); + + // verify total in first hour + assertValues(stats, TEST_START, TEST_START + HOUR_IN_MILLIS, 100L, 200L); + + // verify total across 1.5 hours + assertValues(stats, TEST_START, TEST_START + (long) (1.5 * HOUR_IN_MILLIS), 150L, 300L); + + // verify total beyond end + assertValues(stats, TEST_START + (23 * HOUR_IN_MILLIS), TEST_START + WEEK_IN_MILLIS, 100L, 200L); + + // verify everything total + assertValues(stats, TEST_START - WEEK_IN_MILLIS, TEST_START + WEEK_IN_MILLIS, 2400L, 4800L); + + } + + @Test + public void testFuzzing() throws Exception { + try { + // fuzzing with random events, looking for crashes + final NetworkStats.Entry entry = new NetworkStats.Entry(); + final Random r = new Random(); + for (int i = 0; i < 500; i++) { + stats = new NetworkStatsHistory(r.nextLong()); + for (int j = 0; j < 10000; j++) { + if (r.nextBoolean()) { + // add range + final long start = r.nextLong(); + final long end = start + r.nextInt(); + entry.rxBytes = nextPositiveLong(r); + entry.rxPackets = nextPositiveLong(r); + entry.txBytes = nextPositiveLong(r); + entry.txPackets = nextPositiveLong(r); + entry.operations = nextPositiveLong(r); + stats.recordData(start, end, entry); + } else { + // trim something + stats.removeBucketsBefore(r.nextLong()); + } + } + assertConsistent(stats); + } + } catch (Throwable e) { + Log.e(TAG, String.valueOf(stats)); + throw new RuntimeException(e); + } + } + + private static long nextPositiveLong(Random r) { + final long value = r.nextLong(); + return value < 0 ? -value : value; + } + + @Test + public void testIgnoreFields() throws Exception { + final NetworkStatsHistory history = new NetworkStatsHistory( + MINUTE_IN_MILLIS, 0, FIELD_RX_BYTES | FIELD_TX_BYTES); + + history.recordData(0, MINUTE_IN_MILLIS, + new NetworkStats.Entry(1024L, 10L, 2048L, 20L, 4L)); + history.recordData(0, 2 * MINUTE_IN_MILLIS, + new NetworkStats.Entry(2L, 2L, 2L, 2L, 2L)); + + assertFullValues(history, UNKNOWN, 1026L, UNKNOWN, 2050L, UNKNOWN, UNKNOWN); + } + + @Test + public void testIgnoreFieldsRecordIn() throws Exception { + final NetworkStatsHistory full = new NetworkStatsHistory(MINUTE_IN_MILLIS, 0, FIELD_ALL); + final NetworkStatsHistory partial = new NetworkStatsHistory( + MINUTE_IN_MILLIS, 0, FIELD_RX_PACKETS | FIELD_OPERATIONS); + + full.recordData(0, MINUTE_IN_MILLIS, + new NetworkStats.Entry(1024L, 10L, 2048L, 20L, 4L)); + partial.recordEntireHistory(full); + + assertFullValues(partial, UNKNOWN, UNKNOWN, 10L, UNKNOWN, UNKNOWN, 4L); + } + + @Test + public void testIgnoreFieldsRecordOut() throws Exception { + final NetworkStatsHistory full = new NetworkStatsHistory(MINUTE_IN_MILLIS, 0, FIELD_ALL); + final NetworkStatsHistory partial = new NetworkStatsHistory( + MINUTE_IN_MILLIS, 0, FIELD_RX_PACKETS | FIELD_OPERATIONS); + + partial.recordData(0, MINUTE_IN_MILLIS, + new NetworkStats.Entry(1024L, 10L, 2048L, 20L, 4L)); + full.recordEntireHistory(partial); + + assertFullValues(full, MINUTE_IN_MILLIS, 0L, 10L, 0L, 0L, 4L); + } + + @Test + public void testSerialize() throws Exception { + final NetworkStatsHistory before = new NetworkStatsHistory(MINUTE_IN_MILLIS, 40, FIELD_ALL); + before.recordData(0, 4 * MINUTE_IN_MILLIS, + new NetworkStats.Entry(1024L, 10L, 2048L, 20L, 4L)); + before.recordData(DAY_IN_MILLIS, DAY_IN_MILLIS + MINUTE_IN_MILLIS, + new NetworkStats.Entry(10L, 20L, 30L, 40L, 50L)); + + final ByteArrayOutputStream out = new ByteArrayOutputStream(); + before.writeToStream(new DataOutputStream(out)); + out.close(); + + final ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray()); + final NetworkStatsHistory after = new NetworkStatsHistory(new DataInputStream(in)); + + // must have identical totals before and after + assertFullValues(before, 5 * MINUTE_IN_MILLIS, 1034L, 30L, 2078L, 60L, 54L); + assertFullValues(after, 5 * MINUTE_IN_MILLIS, 1034L, 30L, 2078L, 60L, 54L); + } + + @Test + public void testVarLong() throws Exception { + assertEquals(0L, performVarLong(0L)); + assertEquals(-1L, performVarLong(-1L)); + assertEquals(1024L, performVarLong(1024L)); + assertEquals(-1024L, performVarLong(-1024L)); + assertEquals(40 * MB_IN_BYTES, performVarLong(40 * MB_IN_BYTES)); + assertEquals(512 * GB_IN_BYTES, performVarLong(512 * GB_IN_BYTES)); + assertEquals(Long.MIN_VALUE, performVarLong(Long.MIN_VALUE)); + assertEquals(Long.MAX_VALUE, performVarLong(Long.MAX_VALUE)); + assertEquals(Long.MIN_VALUE + 40, performVarLong(Long.MIN_VALUE + 40)); + assertEquals(Long.MAX_VALUE - 40, performVarLong(Long.MAX_VALUE - 40)); + } + + @Test + public void testIndexBeforeAfter() throws Exception { + final long BUCKET_SIZE = HOUR_IN_MILLIS; + stats = new NetworkStatsHistory(BUCKET_SIZE); + + final long FIRST_START = TEST_START; + final long FIRST_END = FIRST_START + (2 * HOUR_IN_MILLIS); + final long SECOND_START = TEST_START + WEEK_IN_MILLIS; + final long SECOND_END = SECOND_START + HOUR_IN_MILLIS; + final long THIRD_START = TEST_START + (2 * WEEK_IN_MILLIS); + final long THIRD_END = THIRD_START + (2 * HOUR_IN_MILLIS); + + stats.recordData(FIRST_START, FIRST_END, + new NetworkStats.Entry(1024L, 10L, 2048L, 20L, 2L)); + stats.recordData(SECOND_START, SECOND_END, + new NetworkStats.Entry(1024L, 10L, 2048L, 20L, 2L)); + stats.recordData(THIRD_START, THIRD_END, + new NetworkStats.Entry(1024L, 10L, 2048L, 20L, 2L)); + + // should have buckets: 2+1+2 + assertEquals(5, stats.size()); + + assertIndexBeforeAfter(stats, 0, 0, Long.MIN_VALUE); + assertIndexBeforeAfter(stats, 0, 1, FIRST_START); + assertIndexBeforeAfter(stats, 0, 1, FIRST_START + MINUTE_IN_MILLIS); + assertIndexBeforeAfter(stats, 0, 2, FIRST_START + HOUR_IN_MILLIS); + assertIndexBeforeAfter(stats, 1, 2, FIRST_START + HOUR_IN_MILLIS + MINUTE_IN_MILLIS); + assertIndexBeforeAfter(stats, 1, 2, FIRST_END - MINUTE_IN_MILLIS); + assertIndexBeforeAfter(stats, 1, 2, FIRST_END); + assertIndexBeforeAfter(stats, 1, 2, FIRST_END + MINUTE_IN_MILLIS); + assertIndexBeforeAfter(stats, 1, 2, SECOND_START - MINUTE_IN_MILLIS); + assertIndexBeforeAfter(stats, 1, 3, SECOND_START); + assertIndexBeforeAfter(stats, 2, 3, SECOND_END); + assertIndexBeforeAfter(stats, 2, 3, SECOND_END + MINUTE_IN_MILLIS); + assertIndexBeforeAfter(stats, 2, 3, THIRD_START - MINUTE_IN_MILLIS); + assertIndexBeforeAfter(stats, 2, 4, THIRD_START); + assertIndexBeforeAfter(stats, 3, 4, THIRD_START + MINUTE_IN_MILLIS); + assertIndexBeforeAfter(stats, 3, 4, THIRD_START + HOUR_IN_MILLIS); + assertIndexBeforeAfter(stats, 4, 4, THIRD_END); + assertIndexBeforeAfter(stats, 4, 4, THIRD_END + MINUTE_IN_MILLIS); + assertIndexBeforeAfter(stats, 4, 4, Long.MAX_VALUE); + } + + @Test + public void testIntersects() throws Exception { + final long BUCKET_SIZE = HOUR_IN_MILLIS; + stats = new NetworkStatsHistory(BUCKET_SIZE); + + final long FIRST_START = TEST_START; + final long FIRST_END = FIRST_START + (2 * HOUR_IN_MILLIS); + final long SECOND_START = TEST_START + WEEK_IN_MILLIS; + final long SECOND_END = SECOND_START + HOUR_IN_MILLIS; + final long THIRD_START = TEST_START + (2 * WEEK_IN_MILLIS); + final long THIRD_END = THIRD_START + (2 * HOUR_IN_MILLIS); + + stats.recordData(FIRST_START, FIRST_END, + new NetworkStats.Entry(1024L, 10L, 2048L, 20L, 2L)); + stats.recordData(SECOND_START, SECOND_END, + new NetworkStats.Entry(1024L, 10L, 2048L, 20L, 2L)); + stats.recordData(THIRD_START, THIRD_END, + new NetworkStats.Entry(1024L, 10L, 2048L, 20L, 2L)); + + assertFalse(stats.intersects(10, 20)); + assertFalse(stats.intersects(TEST_START + YEAR_IN_MILLIS, TEST_START + YEAR_IN_MILLIS + 1)); + assertFalse(stats.intersects(Long.MAX_VALUE, Long.MIN_VALUE)); + + assertTrue(stats.intersects(Long.MIN_VALUE, Long.MAX_VALUE)); + assertTrue(stats.intersects(10, TEST_START + YEAR_IN_MILLIS)); + assertTrue(stats.intersects(TEST_START, TEST_START)); + assertTrue(stats.intersects(TEST_START + DAY_IN_MILLIS, TEST_START + DAY_IN_MILLIS + 1)); + assertTrue(stats.intersects(TEST_START + DAY_IN_MILLIS, Long.MAX_VALUE)); + assertTrue(stats.intersects(TEST_START + 1, Long.MAX_VALUE)); + + assertFalse(stats.intersects(Long.MIN_VALUE, TEST_START - 1)); + assertTrue(stats.intersects(Long.MIN_VALUE, TEST_START)); + assertTrue(stats.intersects(Long.MIN_VALUE, TEST_START + 1)); + } + + @Test + public void testSetValues() throws Exception { + stats = new NetworkStatsHistory(HOUR_IN_MILLIS); + stats.recordData(TEST_START, TEST_START + 1, + new NetworkStats.Entry(1024L, 10L, 2048L, 20L, 2L)); + + assertEquals(1024L + 2048L, stats.getTotalBytes()); + + final NetworkStatsHistory.Entry entry = stats.getValues(0, null); + entry.rxBytes /= 2; + entry.txBytes *= 2; + stats.setValues(0, entry); + + assertEquals(512L + 4096L, stats.getTotalBytes()); + } + + @Test + public void testMultiplySafe() { + assertEquals(25, multiplySafe(50, 1, 2)); + assertEquals(100, multiplySafe(50, 2, 1)); + + assertEquals(-10, multiplySafe(30, -1, 3)); + assertEquals(0, multiplySafe(30, 0, 3)); + assertEquals(10, multiplySafe(30, 1, 3)); + assertEquals(20, multiplySafe(30, 2, 3)); + assertEquals(30, multiplySafe(30, 3, 3)); + assertEquals(40, multiplySafe(30, 4, 3)); + + assertEquals(100_000_000_000L, + multiplySafe(300_000_000_000L, 10_000_000_000L, 30_000_000_000L)); + assertEquals(100_000_000_010L, + multiplySafe(300_000_000_000L, 10_000_000_001L, 30_000_000_000L)); + assertEquals(823_202_048L, + multiplySafe(4_939_212_288L, 2_121_815_528L, 12_730_893_165L)); + } + + private static void assertIndexBeforeAfter( + NetworkStatsHistory stats, int before, int after, long time) { + assertEquals("unexpected before", before, stats.getIndexBefore(time)); + assertEquals("unexpected after", after, stats.getIndexAfter(time)); + } + + private static long performVarLong(long before) throws Exception { + final ByteArrayOutputStream out = new ByteArrayOutputStream(); + writeVarLong(new DataOutputStream(out), before); + + final ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray()); + return readVarLong(new DataInputStream(in)); + } + + private static void assertConsistent(NetworkStatsHistory stats) { + // verify timestamps are monotonic + long lastStart = Long.MIN_VALUE; + NetworkStatsHistory.Entry entry = null; + for (int i = 0; i < stats.size(); i++) { + entry = stats.getValues(i, entry); + assertTrue(lastStart < entry.bucketStart); + lastStart = entry.bucketStart; + } + } + + private static void assertValues( + NetworkStatsHistory stats, int index, long rxBytes, long txBytes) { + final NetworkStatsHistory.Entry entry = stats.getValues(index, null); + assertEquals("unexpected rxBytes", rxBytes, entry.rxBytes); + assertEquals("unexpected txBytes", txBytes, entry.txBytes); + } + + private static void assertValues( + NetworkStatsHistory stats, long start, long end, long rxBytes, long txBytes) { + final NetworkStatsHistory.Entry entry = stats.getValues(start, end, null); + assertEquals("unexpected rxBytes", rxBytes, entry.rxBytes); + assertEquals("unexpected txBytes", txBytes, entry.txBytes); + } + + private static void assertValues(NetworkStatsHistory stats, int index, long activeTime, + long rxBytes, long rxPackets, long txBytes, long txPackets, long operations) { + final NetworkStatsHistory.Entry entry = stats.getValues(index, null); + assertEquals("unexpected activeTime", activeTime, entry.activeTime); + assertEquals("unexpected rxBytes", rxBytes, entry.rxBytes); + assertEquals("unexpected rxPackets", rxPackets, entry.rxPackets); + assertEquals("unexpected txBytes", txBytes, entry.txBytes); + assertEquals("unexpected txPackets", txPackets, entry.txPackets); + assertEquals("unexpected operations", operations, entry.operations); + } + + private static void assertFullValues(NetworkStatsHistory stats, long activeTime, long rxBytes, + long rxPackets, long txBytes, long txPackets, long operations) { + assertValues(stats, Long.MIN_VALUE, Long.MAX_VALUE, activeTime, rxBytes, rxPackets, txBytes, + txPackets, operations); + } + + private static void assertValues(NetworkStatsHistory stats, long start, long end, + long activeTime, long rxBytes, long rxPackets, long txBytes, long txPackets, + long operations) { + final NetworkStatsHistory.Entry entry = stats.getValues(start, end, null); + assertEquals("unexpected activeTime", activeTime, entry.activeTime); + assertEquals("unexpected rxBytes", rxBytes, entry.rxBytes); + assertEquals("unexpected rxPackets", rxPackets, entry.rxPackets); + assertEquals("unexpected txBytes", txBytes, entry.txBytes); + assertEquals("unexpected txPackets", txPackets, entry.txPackets); + assertEquals("unexpected operations", operations, entry.operations); + } +} |