/**
 * SQL-DK
 * Copyright © 2013 František Kučera (frantovo.cz)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package info.globalcode.sql.dk;

import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.testng.annotations.Test;
import static org.testng.Assert.*;

/**
 *
 * @author Ing. František Kučera (frantovo.cz)
 */
public class FunctionsTest {

	@Test
	public void testEscapeRegEx() {
		for (String original : new String[]{"abcd", "1234", "xxx", "\\Eescape\\Q", "\\Qescape\\E", "abc\\Eescape\\Qdef.", ".", ""}) {
			String patternString = Pattern.quote(original);
			System.out.println(original + " → " + patternString);

			Pattern pattern = Pattern.compile(patternString);

			String testString;
			Matcher m;

			testString = original;
			m = pattern.matcher(testString);
			assertTrue(m.matches(), "Pattern does not match original string: " + testString);

			testString = original + "x";
			m = pattern.matcher(testString);
			assertFalse(m.matches(), "Pattern matches wrong string: " + testString);

			testString = "x" + original;
			m = pattern.matcher(testString);
			assertFalse(m.matches(), "Pattern matches wrong string: " + testString);

			testString = (original + "ab").substring(1);
			m = pattern.matcher(testString);
			assertFalse(m.matches(), "Pattern matches wrong string: " + testString);
		}
	}
}