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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 encoder.write(kv);
74 encoder.flush();
75 dos.close();
76 long offset = cos.getCount();
77 CountingInputStream cis =
78 new CountingInputStream(new ByteArrayInputStream(baos.toByteArray()));
79 DataInputStream dis = new DataInputStream(cis);
80 Codec.Decoder decoder = codec.getDecoder(dis);
81 assertTrue(decoder.advance());
82
83 assertFalse(decoder.advance());
84 dis.close();
85 assertEquals(offset, cis.getCount());
86 }
87
88 @Test
89 public void testThree() throws IOException {
90 ByteArrayOutputStream baos = new ByteArrayOutputStream();
91 CountingOutputStream cos = new CountingOutputStream(baos);
92 DataOutputStream dos = new DataOutputStream(cos);
93 Codec codec = new CellCodec();
94 Codec.Encoder encoder = codec.getEncoder(dos);
95 final KeyValue kv1 =
96 new KeyValue(Bytes.toBytes("r"), Bytes.toBytes("f"), Bytes.toBytes("1"), Bytes.toBytes("1"));
97 final KeyValue kv2 =
98 new KeyValue(Bytes.toBytes("r"), Bytes.toBytes("f"), Bytes.toBytes("2"), Bytes.toBytes("2"));
99 final KeyValue kv3 =
100 new KeyValue(Bytes.toBytes("r"), Bytes.toBytes("f"), Bytes.toBytes("3"), Bytes.toBytes("3"));
101 encoder.write(kv1);
102 encoder.write(kv2);
103 encoder.write(kv3);
104 encoder.flush();
105 dos.close();
106 long offset = cos.getCount();
107 CountingInputStream cis =
108 new CountingInputStream(new ByteArrayInputStream(baos.toByteArray()));
109 DataInputStream dis = new DataInputStream(cis);
110 Codec.Decoder decoder = codec.getDecoder(dis);
111 assertTrue(decoder.advance());
112 Cell c = decoder.current();
113 assertTrue(CellComparator.equals(c, kv1));
114 assertTrue(decoder.advance());
115 c = decoder.current();
116 assertTrue(CellComparator.equals(c, kv2));
117 assertTrue(decoder.advance());
118 c = decoder.current();
119 assertTrue(CellComparator.equals(c, kv3));
120 assertFalse(decoder.advance());
121 dis.close();
122 assertEquals(offset, cis.getCount());
123 }
124 }