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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
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
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 * software distributed under the License is distributed on an
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package org.apache.pdfbox.preflight;

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

import org.junit.Test;

public class TestPreflightPath
{

    @Test
    public void test()
    {
        PreflightPath path = new PreflightPath();

        assertTrue(path.isEmpty());
        assertEquals(0, path.size());

        path.pushObject("a");
        assertEquals(1, path.size());
        assertFalse(path.isEmpty());

        int position = path.getClosestTypePosition(String.class);
        assertEquals(0, position);

        path.pushObject(new Integer(6));
        assertEquals(2, path.size());

        position = path.getClosestTypePosition(String.class);
        assertEquals(0, position);

        position = path.getClosestTypePosition(Integer.class);
        assertEquals(1, position);

        path.pushObject("b");
        assertEquals(3, path.size());

        position = path.getClosestTypePosition(String.class);
        assertEquals(2, position);
        position = path.getClosestTypePosition(Integer.class);
        assertEquals(1, position);

        Integer i = path.getPathElement(position, Integer.class);
        assertEquals(Integer.valueOf(6), i);

        Object str = path.peek();
        assertEquals(3, path.size());
        assertEquals(String.class, str.getClass());
        assertEquals("b", (String) str);

        str = path.pop();
        assertEquals(2, path.size());
        assertEquals(String.class, str.getClass());
        assertEquals("b", (String) str);

        path.clear();
        assertTrue(path.isEmpty());
        assertEquals(0, path.size());
    }

    @Test
    public void testPush()
    {
        PreflightPath path = new PreflightPath();
        assertTrue(path.pushObject("a"));
        assertFalse(path.pushObject(null));
    }

}
