DoNothingInput_source.cc

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// ------------------------------------------------------------
//
// The purpose of 'DoNothingInput' is to verify that when the
// destructor is called, the art::ServiceHandle can be constructed
// successfully and not throw.  This tests the expected behavior of
// the art::EventProcessor constructor.
//
// ------------------------------------------------------------

#include "art/Framework/Core/InputSourceMacros.h"
#include "art/Framework/IO/Sources/Source.h"
#include "art/Framework/Services/Registry/ServiceHandle.h"

#include "art/test/Integration/Wanted.h"

#include <memory>

namespace art {
  class FileBlock;
  class ProductRegistryHelper;
  class SourceHelper;
} // namespace art

namespace fhicl {
  class ParameterSet;
}

namespace art {
  namespace test {

    class DoNothingInput {
    public:
      DoNothingInput(fhicl::ParameterSet const&,
                     ProductRegistryHelper&,
                     SourceHelper const&)
      {}

      ~DoNothingInput() { ServiceHandle<Wanted> shouldNotThrow[[gnu::unused]]; }

      void
      readFile(std::string const&, art::FileBlock*&)
      {}

      void
      closeCurrentFile()
      {}

      bool
      readNext(RunPrincipal const* const,
               SubRunPrincipal const* const,
               RunPrincipal*&,
               SubRunPrincipal*&,
               EventPrincipal*&)
      {
        return false;
      }
    };

  } // namespace test
} // namespace art

DEFINE_ART_INPUT_SOURCE(art::Source<art::test::DoNothingInput>)