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 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *
 *    https://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
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 *  KIND, either express or implied.  See the License for the
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package org.apache.cayenne.util;

import org.junit.Test;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;

public class RegexUtilTest {

    @Test
    public void testSubstBackslashes() {
        assertTrue(RegexUtil.BACKSLASH.matcher("\\").find());
        assertTrue(RegexUtil.BACKSLASH.matcher("abc\\").find());

        assertNull(RegexUtil.substBackslashes(null));
        assertEquals("abc", RegexUtil.substBackslashes("abc"));
        assertEquals("ab/c", RegexUtil.substBackslashes("ab/c"));

        assertEquals("ab/c", RegexUtil.substBackslashes("ab\\c"));
        assertEquals("ab//c", RegexUtil.substBackslashes("ab\\\\c"));
        assertEquals("ab//c", RegexUtil.substBackslashes("ab\\/c"));
        assertEquals("/ab/c", RegexUtil.substBackslashes("\\ab\\c"));
    }

    @Test
    public void testGetPackagePath() {
        assertTrue(RegexUtil.DOT.matcher(".").find());
        assertTrue(RegexUtil.DOT.matcher("abc.aa.aa").find());

        assertEquals("", RegexUtil.getPackagePath(null));
        assertEquals("", RegexUtil.getPackagePath(""));
        assertEquals("", RegexUtil.getPackagePath("b"));
        assertEquals("a", RegexUtil.getPackagePath("a.b"));
        assertEquals("a/c", RegexUtil.getPackagePath("a.c.b"));
    }

}
