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/*
* DSI utilities
*
* Copyright (C) 2010-2023 Sebastiano Vigna
*
* This program and the accompanying materials are made available under the
* terms of the GNU Lesser General Public License v2.1 or later,
* which is available at
* http://www.gnu.org/licenses/old-licenses/lgpl-2.1-standalone.html,
* or the Apache Software License 2.0, which is available at
* https://www.apache.org/licenses/LICENSE-2.0.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE.
*
* SPDX-License-Identifier: LGPL-2.1-or-later OR Apache-2.0
*/
package it.unimi.dsi.util;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
import it.unimi.dsi.fastutil.chars.CharArrayList;
public class TextPatternTest {
@Test
public void testSingleCharacterSearch() {
final byte[] b = new byte[] { 1, (byte)'A', 2 };
final String s = " A ";
final TextPattern pattern = new TextPattern("A");
assertEquals(-1, pattern.search(b, 0, 1));
assertEquals(-1, pattern.search(s, 0, 1));
assertEquals(-1, pattern.search(s.toCharArray(), 0, 1));
assertEquals(-1, pattern.search(CharArrayList.wrap(s.toCharArray()), 0, 1));
assertEquals(1, pattern.search(b));
assertEquals(1, pattern.search(s));
assertEquals(1, pattern.search(s.toCharArray()));
assertEquals(1, pattern.search(CharArrayList.wrap(s.toCharArray())));
}
@Test
public void testSearch() {
final byte[] b = new byte[] { 1, (byte)'A', 'B', 2 };
final String s = " AB ";
final TextPattern pattern = new TextPattern("AB");
assertEquals(-1, pattern.search(b, 0, 2));
assertEquals(-1, pattern.search(s, 0, 2));
assertEquals(-1, pattern.search(s.toCharArray(), 0, 2));
assertEquals(-1, pattern.search(CharArrayList.wrap(s.toCharArray()), 0, 2));
assertEquals(1, pattern.search(b));
assertEquals(1, pattern.search(s));
assertEquals(1, pattern.search(s.toCharArray()));
assertEquals(1, pattern.search(CharArrayList.wrap(s.toCharArray())));
TextPattern patternMeta = new TextPattern("<meta", TextPattern.CASE_INSENSITIVE);
assertTrue(patternMeta.search(documentMetaIsutf_8.getBytes()) != -1);
patternMeta = new TextPattern("<META", TextPattern.CASE_INSENSITIVE);
assertTrue(patternMeta.search(documentMetaIsutf_8.getBytes()) != -1);
}
private static final String documentMetaIsutf_8 =
"<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Strict//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n" +
"\n" +
"<html>\n" +
"<head>\n" +
"<style type=\"text/css\">\n" +
"@import \"/css/content.php\";\n" +
"@import \"/css/layout.php\";\n" +
"</style>" +
"<meta http-equiv=\"Content-Type\" content=\"text/html;charset=utf-8\" >" +
"<title id=\"mamma\" special-type=\"li turchi\">Sebastiano Vigna</title>\n" +
"</HEAD>\n" +
"<boDY>\n" +
"<div id=header>:::Sebastiano Vigna</div>" +
"<div id=left>\n" +
"<ul id=\"left-nav\">" +
"<br>Bye bye baby\n" +
"<img SRc=\"but I'm ignoring this one\"> and not this one\n" +
"\n\n even whitespace counts \n\n" +
"<frame SRC=\"http://www.GOOGLE.com/\">The frame source counts</frame>\n" +
"<iframe SRC=\"http://www.GOOGLE.com/\">And so does the iframe source</iframe>\n" +
"</body>\n" +
"</html>";
}
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