/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file 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
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.pdfbox.jbig2;

import static org.junit.Assert.*;

import org.apache.pdfbox.jbig2.Bitmap;

import junit.framework.Assert;

import org.junit.Test;

public class BitmapTest
{

    @Test
    public void getPixelAndSetPixelTest()
    {
        final Bitmap bitmap = new Bitmap(37, 49);
        assertEquals(0, bitmap.getPixel(3, 19));

        bitmap.setPixel(3, 19, (byte) 1);

        assertEquals(1, bitmap.getPixel(3, 19));
    }

    @Test
    public void getByteAndSetByteTest()
    {
        Bitmap bitmap = new Bitmap(16, 16);

        byte value = (byte) 4;
        bitmap.setByte(0, value);
        bitmap.setByte(31, value);

        assertEquals(value, bitmap.getByte(0));
        assertEquals(value, bitmap.getByte(31));
    }

    @Test(expected = IndexOutOfBoundsException.class)
    public void getByteThrowsExceptionTest()
    {
        Bitmap bitmap = new Bitmap(16, 16);
        bitmap.getByte(32);
    }

    @Test(expected = IndexOutOfBoundsException.class)
    public void setByteThrowsExceptionTest()
    {
        Bitmap bitmap = new Bitmap(16, 16);
        bitmap.setByte(32, (byte) 0);
    }

    @Test
    public void getByteAsIntegerTest()
    {
        Bitmap bitmap = new Bitmap(16, 16);

        byte byteValue = (byte) 4;
        int integerValue = byteValue;
        bitmap.setByte(0, byteValue);
        bitmap.setByte(31, byteValue);

        Assert.assertEquals(integerValue, bitmap.getByteAsInteger(0));
        Assert.assertEquals(integerValue, bitmap.getByteAsInteger(31));

    }

    @Test(expected = IndexOutOfBoundsException.class)
    public void getByteAsIntegerThrowsExceptionTest()
    {
        Bitmap bitmap = new Bitmap(16, 16);
        bitmap.getByte(32);
    }

    @Test
    public void getHeightTest()
    {
        int height = 16;
        Bitmap bitmap = new Bitmap(1, height);
        Assert.assertEquals(height, bitmap.getHeight());
    }

    @Test
    public void getWidthTest()
    {
        int width = 16;
        Bitmap bitmap = new Bitmap(width, 1);
        Assert.assertEquals(width, bitmap.getWidth());
    }

}