test_Interface.cc

/**************************************************************************
 * basf2 (Belle II Analysis Software Framework)                           *
 * Author: The Belle II Collaboration                                     *
 *                                                                        *
 * See git log for contributors and copyright holders.                    *
 * This file is licensed under LGPL-3.0, see LICENSE.md.                  *
 **************************************************************************/
 
#include <mva/interface/Interface.h>
#include <framework/utilities/TestHelpers.h>
 
#include <gtest/gtest.h>
 
using namespace Belle2;
 
namespace {
 
  class TestOptions : public MVA::SpecificOptions {
 
  public:
    void load(const boost::property_tree::ptree&) override { }
    void save(boost::property_tree::ptree&) const override { }
    po::options_description getDescription() override
    {
      po::options_description description("General options");
      description.add_options()
      ("help", "print this message");
      return description;
    }
    [[nodiscard]] std::string getMethod() const override { return "Test"; }
  };
 
  class TestTeacher : public MVA::Teacher {
  public:
    TestTeacher(const MVA::GeneralOptions& g, const TestOptions&) : MVA::Teacher(g) { }
    MVA::Weightfile train(MVA::Dataset&) const override { return MVA::Weightfile(); }
  };
 
  class TestExpert : public MVA::Expert {
  public:
    void load(MVA::Weightfile&) override { }
    std::vector<float> apply(MVA::Dataset&) const override { return std::vector<float>(); };
  };
 
  TEST(InterfaceTest, InterfaceCreation)
  {
    {
      MVA::Interface<TestOptions, TestTeacher, TestExpert> interface;
 
      EXPECT_EQ(interface.getName(), "Test");
      auto supported_interfaces = MVA::AbstractInterface::getSupportedInterfaces();
      EXPECT_TRUE(supported_interfaces.find("Test") != supported_interfaces.end());
      EXPECT_EQ(supported_interfaces["Test"], &interface);
 
      // These should just work
      interface.getOptions();
      interface.getExpert();
      interface.getTeacher(MVA::GeneralOptions(), TestOptions());
 
      // Adding the same interface twice should emit a warning
      EXPECT_B2WARNING((MVA::Interface<TestOptions, TestTeacher, TestExpert>()));
    }
 
    // Now it should be removed again
    auto supported_interfaces = MVA::AbstractInterface::getSupportedInterfaces();
    EXPECT_TRUE(supported_interfaces.find("Test") == supported_interfaces.end());
 
 
  }
}