/**

  * 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);

 		}

 	}

 }