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18 package org.apache.hadoop.hbase.codec;
19
20 import static org.junit.Assert.*;
21
22 import java.io.ByteArrayInputStream;
23 import java.io.ByteArrayOutputStream;
24 import java.io.DataInputStream;
25 import java.io.DataOutputStream;
26 import java.io.IOException;
27
28 import org.apache.hadoop.hbase.Cell;
29 import org.apache.hadoop.hbase.CellComparator;
30 import org.apache.hadoop.hbase.KeyValue;
31 import org.apache.hadoop.hbase.SmallTests;
32 import org.apache.hadoop.hbase.codec.CellCodec;
33 import org.apache.hadoop.hbase.codec.Codec;
34 import org.apache.hadoop.hbase.util.Bytes;
35 import org.junit.Test;
36 import org.junit.experimental.categories.Category;
37
38 import com.google.common.io.CountingInputStream;
39 import com.google.common.io.CountingOutputStream;
40
41 @Category(SmallTests.class)
42 public class TestCellCodec {
43
44 @Test
45 public void testEmptyWorks() throws IOException {
46 ByteArrayOutputStream baos = new ByteArrayOutputStream();
47 CountingOutputStream cos = new CountingOutputStream(baos);
48 DataOutputStream dos = new DataOutputStream(cos);
49 Codec codec = new CellCodec();
50 Codec.Encoder encoder = codec.getEncoder(dos);
51 encoder.flush();
52 dos.close();
53 long offset = cos.getCount();
54 assertEquals(0, offset);
55 CountingInputStream cis =
56 new CountingInputStream(new ByteArrayInputStream(baos.toByteArray()));
57 DataInputStream dis = new DataInputStream(cis);
58 Codec.Decoder decoder = codec.getDecoder(dis);
59 assertFalse(decoder.advance());
60 dis.close();
61 assertEquals(0, cis.getCount());
62 }
63
64 @Test
65 public void testOne() throws IOException {
66 ByteArrayOutputStream baos = new ByteArrayOutputStream();
67 CountingOutputStream cos = new CountingOutputStream(baos);
68 DataOutputStream dos = new DataOutputStream(cos);
69 Codec codec = new CellCodec();
70 Codec.Encoder encoder = codec.getEncoder(dos);
71 final KeyValue kv =
72 new KeyValue(Bytes.toBytes("r"), Bytes.toBytes("f"), Bytes.toBytes("q"), Bytes.toBytes("v"));
73 kv.setMvccVersion(Long.MAX_VALUE);
74 encoder.write(kv);
75 encoder.flush();
76 dos.close();
77 long offset = cos.getCount();
78 CountingInputStream cis =
79 new CountingInputStream(new ByteArrayInputStream(baos.toByteArray()));
80 DataInputStream dis = new DataInputStream(cis);
81 Codec.Decoder decoder = codec.getDecoder(dis);
82 assertTrue(decoder.advance());
83
84 assertFalse(decoder.advance());
85 dis.close();
86 assertEquals(offset, cis.getCount());
87 }
88
89 @Test
90 public void testThree() throws IOException {
91 ByteArrayOutputStream baos = new ByteArrayOutputStream();
92 CountingOutputStream cos = new CountingOutputStream(baos);
93 DataOutputStream dos = new DataOutputStream(cos);
94 Codec codec = new CellCodec();
95 Codec.Encoder encoder = codec.getEncoder(dos);
96 final KeyValue kv1 =
97 new KeyValue(Bytes.toBytes("r"), Bytes.toBytes("f"), Bytes.toBytes("1"), Bytes.toBytes("1"));
98 final KeyValue kv2 =
99 new KeyValue(Bytes.toBytes("r"), Bytes.toBytes("f"), Bytes.toBytes("2"), Bytes.toBytes("2"));
100 final KeyValue kv3 =
101 new KeyValue(Bytes.toBytes("r"), Bytes.toBytes("f"), Bytes.toBytes("3"), Bytes.toBytes("3"));
102 encoder.write(kv1);
103 encoder.write(kv2);
104 encoder.write(kv3);
105 encoder.flush();
106 dos.close();
107 long offset = cos.getCount();
108 CountingInputStream cis =
109 new CountingInputStream(new ByteArrayInputStream(baos.toByteArray()));
110 DataInputStream dis = new DataInputStream(cis);
111 Codec.Decoder decoder = codec.getDecoder(dis);
112 assertTrue(decoder.advance());
113 Cell c = decoder.current();
114 assertTrue(CellComparator.equals(c, kv1));
115 assertTrue(decoder.advance());
116 c = decoder.current();
117 assertTrue(CellComparator.equals(c, kv2));
118 assertTrue(decoder.advance());
119 c = decoder.current();
120 assertTrue(CellComparator.equals(c, kv3));
121 assertFalse(decoder.advance());
122 dis.close();
123 assertEquals(offset, cis.getCount());
124 }
125 }