/*
* Copyright (C) 2011 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.web.controller.regexp;
import java.io.IOException;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;
/**
* @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a>
*/
public class TestRegExpRenderer extends TestCase {
static void assertRender(RENode re, String expected) {
try {
String rendered;
if (re != null) {
rendered = RERenderer.render(re, new StringBuilder()).toString();
} else {
rendered = "";
}
assertEquals(expected, rendered);
} catch (IOException e) {
AssertionFailedError afe = new AssertionFailedError();
afe.initCause(e);
throw afe;
}
}
static RENode.Disjunction disjunction(String regexp) {
try {
REParser parser = new REParser(regexp);
RENode.Disjunction re = parser.parseDisjunction();
assertTrue(parser.isDone());
return re;
} catch (SyntaxException e) {
AssertionFailedError afe = new AssertionFailedError();
afe.initCause(e);
throw afe;
}
}
static RENode.Alternative alternative(String regexp) {
try {
REParser parser = new REParser(regexp);
RENode.Alternative re = parser.parseAlternative();
assertTrue(parser.isDone());
return re;
} catch (SyntaxException e) {
AssertionFailedError afe = new AssertionFailedError();
afe.initCause(e);
throw afe;
}
}
static RENode.Expr expression(String regexp) {
try {
REParser parser = new REParser(regexp);
RENode.Expr re = parser.parseExpression();
assertTrue(parser.isDone());
return re;
} catch (SyntaxException e) {
AssertionFailedError afe = new AssertionFailedError();
afe.initCause(e);
throw afe;
}
}
static RENode.CharacterClass characterClass(String regexp) {
try {
REParser parser = new REParser(regexp);
RENode.CharacterClass re = parser.parseCharacterClass();
assertTrue(parser.isDone());
return re;
} catch (SyntaxException e) {
AssertionFailedError afe = new AssertionFailedError();
afe.initCause(e);
throw afe;
}
}
public void testSimple() {
assertRender(expression("."), ".");
assertRender(expression("^"), "^");
assertRender(expression("\\."), "\\.");
}
public void testDisjunction() {
assertRender(disjunction(""), "");
assertRender(disjunction("|"), "|");
assertRender(disjunction("a|"), "a|");
assertRender(disjunction("|a"), "|a");
assertRender(disjunction("a|b"), "a|b");
}
public void testAlternative() {
assertRender(alternative(""), "");
assertRender(alternative("ab"), "ab");
assertRender(alternative("abc"), "abc");
}
public void testCharacterClass() {
assertRender(characterClass(""), "");
assertRender(characterClass("[a]"), "[a]");
assertRender(characterClass("[ab]"), "[ab]");
assertRender(characterClass("[.\\]]"), "[\\.\\]]");
}
}