public virtual void ExtractByteAlignedG4TiffImageTest()
{
String inFileName = sourceFolder + "extractByteAlignedG4TiffImage.pdf";
String outImageFileName = destinationFolder + "extractedByteAlignedImage.png";
String cmpImageFileName = sourceFolder + "cmp_extractByteAlignedG4TiffImage.png";
PdfDocument pdfDocument = new PdfDocument(new PdfReader(inFileName));
GetImageBytesTest.ImageExtractor listener = new GetImageBytesTest.ImageExtractor(this);
PdfCanvasProcessor processor = new PdfCanvasProcessor(listener);
processor.ProcessPageContent(pdfDocument.GetPage(1));
IList <byte[]> images = listener.GetImages();
NUnit.Framework.Assert.AreEqual(1, images.Count);
using (FileStream fos = new FileStream(outImageFileName, FileMode.Create)) {
fos.Write(images[0], 0, images.Count);
}
// expected and actual are swapped here for simplicity
int expectedLen = images[0].Length;
byte[] buf = new byte[expectedLen];
using (FileStream @is = new FileStream(cmpImageFileName, FileMode.Open, FileAccess.Read)) {
int read = @is.JRead(buf, 0, buf.Length);
NUnit.Framework.Assert.AreEqual(expectedLen, read);
read = @is.JRead(buf, 0, buf.Length);
NUnit.Framework.Assert.IsTrue(read <= 0);
}
NUnit.Framework.Assert.AreEqual(images[0], buf);
}
public virtual void ExpectedByteAlignedTiffImageExtractionTest()
{
NUnit.Framework.Assert.That(() => {
//Byte-aligned image is expected in pdf file, but in fact it's not
String inFileName = sourceFolder + "expectedByteAlignedTiffImageExtraction.pdf";
PdfDocument pdfDocument = new PdfDocument(new PdfReader(inFileName));
GetImageBytesTest.ImageExtractor listener = new GetImageBytesTest.ImageExtractor(this);
PdfCanvasProcessor processor = new PdfCanvasProcessor(listener);
processor.ProcessPageContent(pdfDocument.GetPage(1));
}
, NUnit.Framework.Throws.InstanceOf <iText.IO.IOException>().With.Message.EqualTo(MessageFormatUtil.Format(iText.IO.IOException.ExpectedTrailingZeroBitsForByteAlignedLines)))
;
}
