/*
  *  MoMEMta: a modular implementation of the Matrix Element Method
  *  Copyright (C) 2016  Universite catholique de Louvain (UCL), Belgium
  *
  *  This program is free software: you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation, either version 3 of the License, or
  *  (at your option) any later version.
  *
  *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <catch.hpp>
 
 #include <momemta/ConfigurationReader.h>
 #include <momemta/Logging.h>
 #include <momemta/MoMEMta.h>
 
 using namespace momemta;
 
 TEST_CASE("Integrand evaluation", "[integration_tests]") {
     logging::set_level(logging::level::fatal);
 
     ConfigurationReader configuration("integrand.lua");
     MoMEMta weight(configuration.freeze());
 
     // Electron
     Particle electron { "electron", LorentzVector(16.171895980835, -13.7919054031372, -3.42997527122497, 21.5293197631836), -11 };
     // b-quark
     Particle bjet1 { "bjet1", LorentzVector(-55.7908325195313, -111.59294128418, -122.144721984863, 174.66259765625), 5 };
     // Muon
     Particle muon { "muon", LorentzVector(-18.9018573760986, 10.0896110534668, -0.602926552295686, 21.4346446990967), +13 };
     // Anti b-quark
     Particle bjet2 { "bjet2", LorentzVector(71.3899612426758, 96.0094833374023, -77.2513122558594, 142.492813110352), -5 };
 
     weight.setEvent({electron, muon, bjet1, bjet2});
     std::vector<double> psPoint { 0.25, 0.15, 0.1, 0.4 };
     std::vector<double> weights = weight.evaluateIntegrand(psPoint);
 
     REQUIRE(weights.size() == 1);
     REQUIRE(weights[0] * 1e21 == Approx(6.0072644042));
 }