001: /*
002: License $Id: TestFastStringTokenizer.java,v 1.2 2002/01/15 23:54:18 hendriks73 Exp $
003:
004: Copyright (c) 2001 tagtraum industries.
005:
006: LGPL
007: ====
008:
009: jo! is free software; you can redistribute it and/or
010: modify it under the terms of the GNU Lesser General Public
011: License as published by the Free Software Foundation; either
012: version 2.1 of the License, or (at your option) any later version.
013:
014: jo! is distributed in the hope that it will be useful,
015: but WITHOUT ANY WARRANTY; without even the implied warranty of
016: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
017: Lesser General Public License for more details.
018:
019: You should have received a copy of the GNU Lesser General Public
020: License along with this library; if not, write to the Free Software
021: Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
022:
023: For LGPL see <http://www.fsf.org/copyleft/lesser.txt>
024:
025:
026: Sun license
027: ===========
028:
029: This release contains software by Sun Microsystems. Therefore
030: the following conditions have to be met, too. They apply to the
031: files
032:
033: - lib/mail.jar
034: - lib/activation.jar
035: - lib/jsse.jar
036: - lib/jcert.jar
037: - lib/jaxp.jar
038: - lib/crimson.jar
039: - lib/servlet.jar
040: - lib/jnet.jar
041: - lib/jaas.jar
042: - lib/jaasmod.jar
043:
044: contained in this release.
045:
046: a. Licensee may not modify the Java Platform
047: Interface (JPI, identified as classes contained within the javax
048: package or any subpackages of the javax package), by creating additional
049: classes within the JPI or otherwise causing the addition to or modification
050: of the classes in the JPI. In the event that Licensee creates any
051: Java-related API and distribute such API to others for applet or
052: application development, you must promptly publish broadly, an accurate
053: specification for such API for free use by all developers of Java-based
054: software.
055:
056: b. Software is confidential copyrighted information of Sun and
057: title to all copies is retained by Sun and/or its licensors. Licensee
058: shall not modify, decompile, disassemble, decrypt, extract, or otherwise
059: reverse engineer Software. Software may not be leased, assigned, or
060: sublicensed, in whole or in part. Software is not designed or intended
061: for use in on-line control of aircraft, air traffic, aircraft navigation
062: or aircraft communications; or in the design, construction, operation or
063: maintenance of any nuclear facility. Licensee warrants that it will not
064: use or redistribute the Software for such purposes.
065:
066: c. Software is provided "AS IS," without a warranty
067: of any kind. ALL EXPRESS OR IMPLIED REPRESENTATIONS AND WARRANTIES,
068: INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
069: PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED.
070:
071: d. This License is effective until terminated. Licensee may
072: terminate this License at any time by destroying all copies of Software.
073: This License will terminate immediately without notice from Sun if Licensee
074: fails to comply with any provision of this License. Upon such termination,
075: Licensee must destroy all copies of Software.
076:
077: e. Software, including technical data, is subject to U.S.
078: export control laws, including the U.S. Export Administration Act and its
079: associated regulations, and may be subject to export or import regulations
080: in other countries. Licensee agrees to comply strictly with all such
081: regulations and acknowledges that it has the responsibility to obtain
082: licenses to export, re-export, or import Software. Software may not be
083: downloaded, or otherwise exported or re-exported (i) into, or to a national
084: or resident of, Cuba, Iraq, Iran, North Korea, Libya, Sudan, Syria or any
085: country to which the U.S. has embargoed goods; or (ii) to anyone on the
086: U.S. Treasury Department's list of Specially Designated Nations or the U.S.
087: Commerce Department's Table of Denial Orders.
088:
089:
090: Feedback
091: ========
092:
093: We encourage your feedback and suggestions and want to use your feedback to
094: improve the Software. Send all such feedback to:
095: <feedback@tagtraum.com>
096:
097: For more information on tagtraum industries and jo!
098: please see <http://www.tagtraum.com/>.
099:
100:
101: */
102: package com.tagtraum.perf.util;
103:
104: import junit.framework.TestCase;
105: import junit.framework.TestSuite;
106:
107: import java.util.Random;
108: import java.util.StringTokenizer;
109:
110: /**
111: *
112: *
113: * @author <a href="mailto:hs@tagtraum.com">Hendrik Schreiber</a>
114: * @version $Id: TestFastStringTokenizer.java,v 1.2 2002/01/15 23:54:18 hendriks73 Exp $
115: */
116: public class TestFastStringTokenizer extends TestCase {
117:
118: /**
119: * Source-Version
120: */
121: public static String vcid = "$Id: TestFastStringTokenizer.java,v 1.2 2002/01/15 23:54:18 hendriks73 Exp $";
122:
123: public TestFastStringTokenizer(String name) {
124: super (name);
125: }
126:
127: public void testMultipleDelims() {
128: FastStringTokenizer st = new FastStringTokenizer(" t ttt t");
129: assertTrue(st.countTokens() == 3);
130: assertTrue(st.hasMoreTokens());
131: assertTrue(st.nextToken().equals("t"));
132: assertTrue(st.countTokens() == 2);
133: assertTrue(st.hasMoreTokens());
134: assertTrue(st.nextToken().equals("ttt"));
135: assertTrue(st.countTokens() == 1);
136: assertTrue(st.hasMoreTokens());
137: assertTrue(st.nextToken().equals("t"));
138: assertTrue(st.countTokens() == 0);
139: assertTrue(!st.hasMoreTokens());
140: }
141:
142: public void testLeadingDelim() {
143: FastStringTokenizer st = new FastStringTokenizer(" t");
144: assertTrue(st.countTokens() == 1);
145: assertTrue(st.hasMoreTokens());
146: assertTrue(st.nextToken().equals("t"));
147: assertTrue(st.countTokens() == 0);
148: assertTrue(!st.hasMoreTokens());
149: }
150:
151: public void testTrailingDelim() {
152: FastStringTokenizer st = new FastStringTokenizer("t ");
153: assertTrue(st.countTokens() == 1);
154: assertTrue(st.hasMoreTokens());
155: assertTrue(st.nextToken().equals("t"));
156: assertTrue(st.countTokens() == 0);
157: assertTrue(!st.hasMoreTokens());
158: }
159:
160: public void testPerformance() {
161: int blocksize = 1024 * 5000;
162: Random rnd = new Random();
163: StringBuffer sb = new StringBuffer(blocksize);
164: int r = 0;
165: int count = 0;
166: for (int i = 0; i < blocksize; i++) {
167: if (i == r) {
168: sb.append(' ');
169: r = rnd.nextInt(3) + i + 1;
170: count++;
171: } else
172: sb.append('a');
173: }
174: System.out.println("Tokens: " + count);
175: String str = sb.toString();
176:
177: long start = System.currentTimeMillis();
178: FastStringTokenizer fst = new FastStringTokenizer();
179: for (int i = 0; i < 10; i++) {
180: fst.init(str, ' ');
181: while (fst.hasMoreTokens()) {
182: fst.nextToken();
183: }
184: }
185: System.out.println();
186: System.out.println("FastStringTokenizer Performance: "
187: + (System.currentTimeMillis() - start) + " ms");
188:
189: start = System.currentTimeMillis();
190: for (int i = 0; i < 10; i++) {
191: StringTokenizer st = new StringTokenizer(str, " ");
192: while (st.hasMoreTokens()) {
193: st.nextToken();
194: }
195: st = null;
196: }
197: System.out.println();
198: System.out.println("StringTokenizer Performance: "
199: + (System.currentTimeMillis() - start) + " ms");
200: }
201:
202: public static TestSuite suite() {
203: return new TestSuite(TestFastStringTokenizer.class);
204: }
205:
206: public static void main(String[] args) {
207: junit.textui.TestRunner.run(suite());
208: }
209:
210: }
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