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package com.bumptech.glide.gifdecoder.test;
import org.junit.Test;
import java.nio.ByteBuffer;
import static org.junit.Assert.assertArrayEquals;
/**
* Tests for {@link com.bumptech.glide.gifdecoder.test.GifBytesTestUtil}.
*/
public class GifBytesTestUtilTest {
@Test
public void testWriteHeaderAndLsdWithoutGct() {
ByteBuffer buffer = ByteBuffer.allocate(GifBytesTestUtil.HEADER_LENGTH);
GifBytesTestUtil.writeHeaderAndLsd(buffer, 8, 16, false, 0);
byte[] expected = new byte[] { 0x47, 0x49, 0x46, 0x38, 0x39, 0x61, 0x00, 0x08, 0x00, 0x10, 0x20, 0x00, 0x00};
assertArrayEquals(expected, buffer.array());
}
@Test
public void testWriteHeaderAndLsdWithGct() {
ByteBuffer buffer = ByteBuffer.allocate(GifBytesTestUtil.HEADER_LENGTH);
GifBytesTestUtil.writeHeaderAndLsd(buffer, 8, 16, true, 4);
byte[] expected = new byte[] { 0x47, 0x49, 0x46, 0x38, 0x39, 0x61, 0x00, 0x08, 0x00, 0x10, (byte) 0xA4, 0x00,
0x00};
assertArrayEquals(expected, buffer.array());
}
@Test
public void testWriteImageDescriptor() {
ByteBuffer buffer = ByteBuffer.allocate(GifBytesTestUtil.IMAGE_DESCRIPTOR_LENGTH);
GifBytesTestUtil.writeImageDescriptor(buffer, 10, 9, 8, 7);
byte[] expected = new byte[] { 0x2C, 0x00, 0x0A, 0x00, 0X09, 0x00, 0x08, 0x000, 0x07, 0x00 };
assertArrayEquals(expected, buffer.array());
}
@Test
public void testWriteFakeImageData() {
ByteBuffer buffer = ByteBuffer.allocate(4);
GifBytesTestUtil.writeFakeImageData(buffer, 2);
byte[] expected = new byte[] { 0x02, 0x01, 0x01, 0x00 };
assertArrayEquals(expected, buffer.array());
}
}
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