Fix macos CI pipeline

README.md

@@ -59,7 +59,11 @@ $ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/inst
 ```
 
 ```sh
-$ brew install cmake ceres-solver imath boost  
+$ brew install ceres-solver nlohmann-json openimageio nanobind robin-map
+```
+
+```sh
+$ python3 -m pip install --break-system-packages pytest
 ```
 
 ### Linux

src/rawtoaces_util/image_converter.cpp

@@ -1825,13 +1825,21 @@ bool ImageConverter::save_image(
         "chromaticities",
         OIIO::TypeDesc( OIIO::TypeDesc::FLOAT, 8 ),
         chromaticities );
+    image_spec["oiio:ColorSpace"] = "lin_ap0_scene";
 
     auto image_output = OIIO::ImageOutput::create( "exr" );
     bool result       = image_output->open( output_filename, image_spec );
     if ( result )
     {
         result = buf.write( image_output.get() );
     }
+    else
+    {
+        std::cerr << "ERROR: Failed to open the file: " << output_filename
+                  << std::endl
+                  << "Error: " << image_output->geterror() << std::endl;
+    }
+
     return result;
 }
 

tests/usage_example_util.cpp

@@ -10,9 +10,23 @@
 // This file contains some usage examples of the util library.
 // It has only very little unit test functionality to keep the code clean.
 
+namespace
+{
+std::string create_temp_output_dir()
+{
+    static const std::string dir_name = "rawtoaces_usage_example_output";
+    std::filesystem::path    temp_output_dir =
+        std::filesystem::temp_directory_path() / dir_name;
+    std::cout << "Output dir: " << temp_output_dir << std::endl;
+    std::filesystem::create_directories( temp_output_dir );
+    return temp_output_dir.string();
+}
+} // namespace
+
 /// Test the image converter using command line parameters for intialisation.
 void test_ImageConverter_arguments()
 {
+    std::cout << "Running test_ImageConverter_arguments" << std::endl;
     // This test fails on CI runners having an old version of OIIO.
     if ( OIIO::openimageio_version() < 30000 )
         return;
@@ -23,8 +37,12 @@ void test_ImageConverter_arguments()
         std::filesystem::absolute( image_path ).string();
 
     // Input parameters.
-    const char *argv[] = { "DUMMY PROGRAM PATH", "--wb-method", "metadata",
-                           "--mat-method",       "metadata",    "--overwrite" };
+    std::string temp_output_dir = create_temp_output_dir();
+    const char *argv[]          = { "DUMMY PROGRAM PATH", "--wb-method",
+                                    "metadata",           "--mat-method",
+                                    "metadata",           "--overwrite",
+                                    "--output-dir",       temp_output_dir.c_str(),
+                                    "--verbose" };
 
     const size_t argc = sizeof( argv ) / sizeof( argv[0] );
 
@@ -45,6 +63,7 @@ void test_ImageConverter_arguments()
 /// Test the image converter, initialising the settings struct directly.
 void test_ImageConverter_settings()
 {
+    std::cout << "Running test_ImageConverter_settings" << std::endl;
     // This test fails on CI runners having an old version of OIIO.
     if ( OIIO::openimageio_version() < 30000 )
         return;
@@ -56,11 +75,13 @@ void test_ImageConverter_settings()
 
     // Configure the converter.
     rta::util::ImageConverter converter;
+    converter.settings.output_dir = create_temp_output_dir();
     converter.settings.WB_method =
         rta::util::ImageConverter::Settings::WBMethod::Metadata;
     converter.settings.matrix_method =
         rta::util::ImageConverter::Settings::MatrixMethod::Metadata;
     converter.settings.overwrite = true;
+    converter.settings.verbosity = 1;
 
     // Process an image.
     bool result = converter.process_image( absolute_image_path );