/*
 * *************************************************************************************
 *  Copyright (C) 2008 EsperTech, Inc. All rights reserved.                            *
 *  http://esper.codehaus.org                                                          *
 *  http://www.espertech.com                                                           *
 *  ---------------------------------------------------------------------------------- *
 *  The software in this package is published under the terms of the GPL license       *
 *  a copy of which has been included with this distribution in the license.txt file.  *
 * *************************************************************************************
 */

package com.espertech.esper.util;

import junit.framework.TestCase;

public class TestLikeUtil extends TestCase
{
    public void testLike()
    {
        tryMatches("%aa%", '\\',
                    new String[] {"aa", " aa", "aa ", "0aa0", "%aa%"},
                    new String[] {"ba", " bea", "a a", " a a a a", "yyya ay"});

        tryMatches("a%", '\\',
                    new String[] {"a", "allo", "aa ", "aa0", "aa%"},
                    new String[] {" a", "ba", "\\a", " aa", "ya ay"});

        tryMatches("%ab", '\\',
                    new String[] {"dgdgab", "ab", " ab", "addhf ab ab", "  ab"},
                    new String[] {" a", "ba", "a", "ac", "ay"});

        tryMatches("c%ab", '\\',
                    new String[] {"cab", "cgfhghab", "c ab", "cddhf ab ab", "c  ab"},
                    new String[] {"c aa", "c ba", " ab", "c aba", "c b"});

        tryMatches("c%ab", '\\',
                    new String[] {"cab", "cgfhghab", "c ab", "cddhf ab ab", "c  ab"},
                    new String[] {"c aa", "c ba", " ab", "c aba", "c b"});

        tryMatches("c%ab%c", '\\',
                    new String[] {"cabc", "cgfhghabc", "c ab  c", "cddhf ab ab c", "c  abc"},
                    new String[] {"c aa", "c ab", " ab c", "c ab a", "c ba c"});

        tryMatches("_d%c", '\\',
                    new String[] {"adbc", "adc", "adbfhfhfhhfc", "xd99c", "4d%c"},
                    new String[] {"ccdac", "qdtb", "yydc", "9d9e", "111gd"});

        tryMatches("___a", '\\',
                    new String[] {"aaaa", "736a", "   a", "oooa", "___a"},
                    new String[] {"  a", "    a", "uua", "uuuua", "9999b"});

        tryMatches("___a___", '\\',
                    new String[] {"bbbabbb", "bbba   ", "   abbb", "   a   ", "%%%a%%%"},
                    new String[] {"   a  ", "  a   ", "  a ", "    a    ", "x   a   "});

        tryMatches("%_a_%", '\\',
                    new String[] {"dhdhdhdh a djdjdj", " a ", "kdkd a "," a dkdkd", "   a   ", "%%%a%%%"},
                    new String[] {"a", " a", "a ", "    b    ", " qa"});

        tryMatches("!%do", '!',
                    new String[] {"%do"},
                    new String[] {"!do", "do", "ado"});

        tryMatches("!_do", '!',
                    new String[] {"_do"},
                    new String[] {"!do", "do", "ado"});
    }

    private void tryMatches(String pattern, char escape, String[] stringMatching, String[] stringNotMatching)
    {
        LikeUtil helper = new LikeUtil(pattern, escape, false);

        for (int i = 0; i < stringMatching.length; i++)
        {
            String text = "Expected match for pattern '" + pattern +
                        "' and string '" + stringMatching[i] + "'";
            assertTrue(text, helper.compare(stringMatching[i]));
        }

        for (int i = 0; i < stringNotMatching.length; i++)
        {
            String text = "Expected mismatch for pattern '" + pattern +
                        "' and string '" + stringNotMatching[i] + "'";
            assertFalse(text, helper.compare(stringNotMatching[i]));
        }
    }
}