1 package org.codehaus.plexus.util;
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19 import org.junit.jupiter.api.Test;
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28 public class PerfTest {
29 String src = "012345578901234556789012345678901234456789012345678901234567890";
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31 private final int oops = 100;
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36 @Test
37 public void testSubString() {
38 StringBuilder res = new StringBuilder();
39 int len = src.length();
40 for (int cnt = 0; cnt < oops; cnt++) {
41 for (int i = 0; i < len - 5; i++) {
42 res.append(src.substring(i, i + 4));
43 }
44 }
45 int i = res.length();
46 System.out.println("i = " + i);
47 }
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52 @Test
53 public void testResDir() {
54 StringBuilder res = new StringBuilder();
55 int len = src.length();
56 for (int cnt = 0; cnt < oops; cnt++) {
57 for (int i = 0; i < len - 5; i++) {
58 res.append(src, i, i + 4);
59 }
60 }
61 int i = res.length();
62 System.out.println("i = " + i);
63 }
64 }