BUG: add test for bug 479 : writing int8 image

Testing/Fa/Failing/0000479-WriteInt8Image.cxx

+/*=========================================================================
+
+  Program:   ORFEO Toolbox
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+
+  Copyright (c) Centre National d'Etudes Spatiales. All rights reserved.
+  See OTBCopyright.txt for details.
+
+
+  This software is distributed WITHOUT ANY WARRANTY; without even 
+  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+  PURPOSE.  See the above copyright notices for more information.
+
+=========================================================================*/
+#if defined(_MSC_VER)
+#pragma warning ( disable : 4786 )
+#endif
+
+#include "otbImage.h"
+#include "otbImageFileWriter.h"
+#include "otbImageFileReader.h"
+#include "itkImageRegionIterator.h"
+
+
+int main(int argc, char* argv[])
+{
+  typedef char PixelType;
+  
+  const char * out = argv[1];
+  const PixelType value = static_cast<PixelType>(atof(argv[2] )); 
+
+  typedef otb::Image<PixelType, 2>              ImageType;
+  typedef otb::ImageFileWriter<ImageType>       WriterType;
+  typedef itk::ImageRegionIterator<ImageType>   IterType;
+
+  ImageType::IndexType id;
+  ImageType::SizeType size;
+  ImageType::RegionType region;
+
+  id.Fill(0);
+  size.Fill(10);
+
+  region.SetSize( size );
+  region.SetIndex( id ); 
+
+  ImageType::Pointer image = ImageType::New();
+  ImageType::PixelType pix;
+  image->SetRegions(region);
+  image->Allocate();
+  image->FillBuffer(value);
+ 
+  IterType it1( image, region );
+  it1.GoToBegin();
+ 
+  it1.GoToBegin();
+  while( !it1.IsAtEnd() )
+    {
+    if( value != it1.Get() )
+      {
+      std::cout<<"Allocated image pixel value "<<it1.Get()<<" differs from the asked one "<<(double)value<<"."<<std::endl;
+      return EXIT_FAILURE;
+      }
+    ++it1;
+    }
+  
+  WriterType::Pointer writer = WriterType::New();
+  writer->SetInput(image);
+  writer->SetFileName(out);
+  writer->Update();
+
+
+  typedef otb::Image<double, 2>                     ReaderImageType;
+  typedef otb::ImageFileReader<ReaderImageType>     ReaderType;
+  typedef itk::ImageRegionIterator<ReaderImageType> ReaderIterType;
+
+
+  ReaderType::Pointer reader = ReaderType::New();
+  reader->SetFileName(out);
+  reader->Update();
+
+  ReaderIterType it2( reader->GetOutput(), region );
+  it2.GoToBegin();
+  while( !it2.IsAtEnd() )
+    {
+    if( value != it2.Get() )
+      {
+      std::cout<<"Read image pixel value "<<it2.Get()<<" differs from the asked one "<<(double)value<<"."<<std::endl;
+      return EXIT_FAILURE;
+      }
+    ++it2;
+    }
+
+
+  return EXIT_SUCCESS;
+}

Testing/Fa/Failing/CMakeLists.txt

+SET(TEMP ${OTBTesting_BINARY_DIR}/Temporary)
+
 # Failing tests showing bugs
 
 # -------  Compare region propagation of ExtractROI filters  ------------------------------
 ADD_TEST(FA-000307-ExtractROIRegion ${CXX_TEST_PATH}/0000307-ExtractROICompareRegion)
 
+ADD_EXECUTABLE(0000307-ExtractROICompareRegion  0000307-ExtractROICompareRegionsImplementations.cxx)
+TARGET_LINK_LIBRARIES(0000307-ExtractROICompareRegion OTBIO OTBCommon)
+
+# -------  Write an int8 image ------------------------------
+ADD_TEST(FA-0000479-WriteInt8Image ${CXX_TEST_PATH}/0000479-WriteInt8Image 
+  ${TEMP}/FA-0000479-WriteInt8Image.tif
+  -10)
+
+ADD_EXECUTABLE(0000479-WriteInt8Image 0000479-WriteInt8Image.cxx)
+TARGET_LINK_LIBRARIES(0000479-WriteInt8Image OTBIO OTBCommon)
+
 ADD_TEST(FA-000209-SVMValidationLinearlySeparableWithProbEstimate_KO ${CXX_TEST_PATH}/0000209-SVMValidationLinearlySeparableProbEstimation
 0000209-SVMValidationLinearlySeparableProbEstimation 500 500 0.0025 0.0075 0.0075 0.0025 0. 0.0025 0. 0.0025 0 1)
 
-ADD_EXECUTABLE(0000307-ExtractROICompareRegion  0000307-ExtractROICompareRegionsImplementations.cxx)
-TARGET_LINK_LIBRARIES(0000307-ExtractROICompareRegion OTBIO OTBCommon)
+
+