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/*
* Copyright 2002-2017 Drew Noakes
*
* Licensed 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.
*
* More information about this project is available at:
*
* https://drewnoakes.com/code/exif/
* https://github.com/drewnoakes/metadata-extractor
*/
package com.drew.metadata.gif;
import com.drew.lang.StreamReader;
import com.drew.lang.annotations.NotNull;
import com.drew.metadata.Metadata;
import org.junit.Test;
import java.io.FileInputStream;
import java.io.InputStream;
import static org.junit.Assert.*;
/**
* @author Drew Noakes https://drewnoakes.com
*/
public class GifReaderTest
{
@NotNull
public static GifHeaderDirectory processBytes(@NotNull String file) throws Exception
{
Metadata metadata = new Metadata();
InputStream stream = new FileInputStream(file);
new GifReader().extract(new StreamReader(stream), metadata);
stream.close();
GifHeaderDirectory directory = metadata.getFirstDirectoryOfType(GifHeaderDirectory.class);
assertNotNull(directory);
return directory;
}
@Test
public void testMsPaintGif() throws Exception
{
GifHeaderDirectory directory = processBytes("Tests/Data/mspaint-10x10.gif");
assertFalse(directory.hasErrors());
assertEquals("89a", directory.getString(GifHeaderDirectory.TAG_GIF_FORMAT_VERSION));
assertEquals(10, directory.getInt(GifHeaderDirectory.TAG_IMAGE_WIDTH));
assertEquals(10, directory.getInt(GifHeaderDirectory.TAG_IMAGE_HEIGHT));
assertEquals(256, directory.getInt(GifHeaderDirectory.TAG_COLOR_TABLE_SIZE));
assertFalse(directory.getBoolean(GifHeaderDirectory.TAG_IS_COLOR_TABLE_SORTED));
assertEquals(8, directory.getInt(GifHeaderDirectory.TAG_BITS_PER_PIXEL));
assertTrue(directory.getBoolean(GifHeaderDirectory.TAG_HAS_GLOBAL_COLOR_TABLE));
assertEquals(0, directory.getInt(GifHeaderDirectory.TAG_BACKGROUND_COLOR_INDEX));
}
@Test
public void testPhotoshopGif() throws Exception
{
GifHeaderDirectory directory = processBytes("Tests/Data/photoshop-8x12-32colors-alpha.gif");
assertFalse(directory.hasErrors());
assertEquals("89a", directory.getString(GifHeaderDirectory.TAG_GIF_FORMAT_VERSION));
assertEquals(8, directory.getInt(GifHeaderDirectory.TAG_IMAGE_WIDTH));
assertEquals(12, directory.getInt(GifHeaderDirectory.TAG_IMAGE_HEIGHT));
assertEquals(32, directory.getInt(GifHeaderDirectory.TAG_COLOR_TABLE_SIZE));
assertFalse(directory.getBoolean(GifHeaderDirectory.TAG_IS_COLOR_TABLE_SORTED));
assertEquals(5, directory.getInt(GifHeaderDirectory.TAG_BITS_PER_PIXEL));
assertTrue(directory.getBoolean(GifHeaderDirectory.TAG_HAS_GLOBAL_COLOR_TABLE));
assertEquals(8, directory.getInt(GifHeaderDirectory.TAG_BACKGROUND_COLOR_INDEX));
}
}
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