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