1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you 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 org.elasticsearch.common.io.stream;
import org.elasticsearch.common.bytes.ByteBufferBytesReference;
import org.elasticsearch.common.collect.Tuple;
import org.elasticsearch.test.ESTestCase;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.*;
public class StreamTests extends ESTestCase {
public void testRandomVLongSerialization() throws IOException {
for (int i = 0; i < 1024; i++) {
long write = randomLong();
BytesStreamOutput out = new BytesStreamOutput();
out.writeZLong(write);
long read = out.bytes().streamInput().readZLong();
assertEquals(write, read);
}
}
public void testSpecificVLongSerialization() throws IOException {
List<Tuple<Long, byte[]>> values =
Arrays.asList(
new Tuple<>(0L, new byte[]{0}),
new Tuple<>(-1L, new byte[]{1}),
new Tuple<>(1L, new byte[]{2}),
new Tuple<>(-2L, new byte[]{3}),
new Tuple<>(2L, new byte[]{4}),
new Tuple<>(Long.MIN_VALUE, new byte[]{-1, -1, -1, -1, -1, -1, -1, -1, -1, 1}),
new Tuple<>(Long.MAX_VALUE, new byte[]{-2, -1, -1, -1, -1, -1, -1, -1, -1, 1})
);
for (Tuple<Long, byte[]> value : values) {
BytesStreamOutput out = new BytesStreamOutput();
out.writeZLong(value.v1());
assertArrayEquals(Long.toString(value.v1()), value.v2(), out.bytes().toBytes());
ByteBufferBytesReference bytes = new ByteBufferBytesReference(ByteBuffer.wrap(value.v2()));
assertEquals(Arrays.toString(value.v2()), (long)value.v1(), bytes.streamInput().readZLong());
}
}
public void testLinkedHashMap() throws IOException {
int size = randomIntBetween(1, 1024);
boolean accessOrder = randomBoolean();
List<Tuple<String, Integer>> list = new ArrayList<>(size);
LinkedHashMap<String, Integer> write = new LinkedHashMap<>(size, 0.75f, accessOrder);
for (int i = 0; i < size; i++) {
int value = randomInt();
list.add(new Tuple<>(Integer.toString(i), value));
write.put(Integer.toString(i), value);
}
if (accessOrder) {
// randomize access order
Collections.shuffle(list, random());
for (Tuple<String, Integer> entry : list) {
// touch the entries to set the access order
write.get(entry.v1());
}
}
BytesStreamOutput out = new BytesStreamOutput();
out.writeGenericValue(write);
LinkedHashMap<String, Integer> read = (LinkedHashMap<String, Integer>)out.bytes().streamInput().readGenericValue();
assertEquals(size, read.size());
int index = 0;
for (Map.Entry<String, Integer> entry : read.entrySet()) {
assertEquals(list.get(index).v1(), entry.getKey());
assertEquals(list.get(index).v2(), entry.getValue());
index++;
}
}
}
|
