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Merge pull request #189 from Schmidor/CCITTWriter

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Testcase for Merge #188
This commit is contained in:
Harald Kuhr 2015-11-12 09:17:31 +01:00
commit 9c38ff9bdb
1 changed files with 27 additions and 0 deletions
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27
imageio/imageio-tiff/src/test/java/com/twelvemonkeys/imageio/plugins/tiff/CCITTFaxEncoderStreamTest.java
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@ -43,6 +43,7 @@ import java.awt.image.BufferedImage;
import java.awt.image.DataBufferByte;
import java.io.*;
import java.net.URL;
import java.util.Arrays;
import static org.junit.Assert.*;
@ -124,6 +125,32 @@ public class CCITTFaxEncoderStreamTest {
testImage(getClassLoaderResource("/tiff/fivepages-scan-causingerrors.tif"));
}
/**
* Test for "Fixed an issue with long runlengths in CCITTFax writing #188"
*
* @throws IOException
*/
@Test
public void testRunlengthIssue() throws IOException {
byte[] data = new byte[400];
Arrays.fill(data, (byte) 0xFF);
data[0] = 0;
data[399] = 0;
ByteArrayOutputStream imageOutput = new ByteArrayOutputStream();
OutputStream outputSteam = new CCITTFaxEncoderStream(imageOutput, 3200, 1, TIFFExtension.COMPRESSION_CCITT_T6, 1, 0L);
outputSteam.write(data);
outputSteam.close();
byte[] encodedData = imageOutput.toByteArray();
byte[] decodedData = new byte[data.length];
CCITTFaxDecoderStream inputStream = new CCITTFaxDecoderStream(new ByteArrayInputStream(encodedData), 3200, TIFFExtension.COMPRESSION_CCITT_T6, 1, 0L);
new DataInputStream(inputStream).readFully(decodedData);
inputStream.close();
assertArrayEquals(data, decodedData);
}
protected URL getClassLoaderResource(final String pName) {
return getClass().getResource(pName);
}