public void testWriteBandRasterData_WithINT8() throws IOException { _product.addBand("b1", ProductData.TYPE_INT8); final int startValue = 1; final ProductData data = createProductDataForBand(_product.getBand("b1"), startValue); final TiffHeader tiffHeader = new TiffHeader(new Product[]{_product}); final GeoTiffBandWriter bandWriter = new GeoTiffBandWriter(tiffHeader.getIfdAt(0), _ios, _product); tiffHeader.write(_ios); bandWriter.writeBandRasterData(_product.getBand("b1"), 0, 0, _WIDTH, _HEIGHT, data, ProgressMonitor.NULL); final TiffIFD ifd = tiffHeader.getIfdAt(0); final int firstIFDOffset = 10; final long expSize = ifd.getRequiredEntireSize() + firstIFDOffset; final TiffIFD tiffIFD = tiffHeader.getIfdAt(0); final TiffDirectoryEntry entry = tiffIFD.getEntry(TiffTag.STRIP_OFFSETS); final TiffLong[] offsets = (TiffLong[]) entry.getValues(); assertEquals(expSize, _ios.length()); _ios.seek(offsets[0].getValue()); for (int j = 0; j < _WIDTH * _HEIGHT; j++) { final byte expValue = (byte) (startValue + j); assertEquals("index at [" + j + "]", expValue, _ios.readByte()); } }