FailingProducer_module.cc

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#include "art/Framework/Core/EDProducer.h"
#include "art/Framework/Core/ModuleMacros.h"
#include "art/test/TestObjects/ToyProducts.h"

namespace arttest {
  class FailingProducer;
}

//--------------------------------------------------------------------
//
// throws an exception.
// Announces an IntProduct but does not produce one;
// every call to FailingProducer::produce throws an art::Exception
//
class arttest::FailingProducer : public art::EDProducer {
public:
  explicit FailingProducer(fhicl::ParameterSet const& ps) : EDProducer{ps}
  {
    produces<arttest::IntProduct>();
  }

private:
  void produce(art::Event& e) override;
};

void
arttest::FailingProducer::produce(art::Event&)
{
  // We throw an edm exception with a configurable action.
  throw art::Exception(art::errors::ProductNotFound)
    << "Intentional 'ProductNotFound' exception for testing purposes\n";
}

DEFINE_ART_MODULE(arttest::FailingProducer)