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1
5 package org.h2.test.unit;
6
7 import java.util.Random  ;
8
9 import org.h2.test.TestBase;
10 import org.h2.tools.CompressTool;
11
12 public class TestCompress extends TestBase {
13
14 public void test() throws Exception {
15 if(config.big) {
16 for(int i=0; i<100; i++) {
17 test(i);
18 }
19 for(int i=100; i<10000; i += (i+i+1)) {
20 test(i);
21 }
22 } else {
23 test(0);
24 test(1);
25 test(7);
26 test(50);
27 test(200);
28 }
29 }
30
31 void test(int len) throws Exception {
32 for(int pattern = 0; pattern < 3; pattern++) {
33 byte[] buff = new byte[len];
34 switch(pattern) {
35 case 0:
36 break;
38 case 1: {
39 for(int x=0; x<len; x++) {
40 buff[x] = (byte)(x & 10);
41 }
42 break;
43 }
44 case 2: {
45 Random r = new Random (len);
46 r.nextBytes(buff);
47 break;
48 }
49 }
50 String [] algorithm= new String []{
51 "LZF", "Deflate", "No"
52 };
53 CompressTool utils = CompressTool.getInstance();
54 for(int i=0; i<algorithm.length; i++) {
55 byte[] out = utils.compress(buff, algorithm[i]);
56 byte[] test = utils.expand(out);
57 check(test.length, buff.length);
58 check(buff, test);
59 }
60 }
61 }
62
63 }
64 |
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