scatt/tests/test_near_field.cc

#include "gtest/gtest.h"
#include "../src/nmie-basic.hpp"
#include "../src/nmie-nearfield.hpp"

TEST(ceil_to_2_pow_n, HandlesInput) {
  EXPECT_EQ(16, nmie::ceil_to_2_pow_n<nmie::FloatType>(10));
  EXPECT_EQ(32, nmie::ceil_to_2_pow_n<nmie::FloatType>(20));
  EXPECT_EQ(32, nmie::ceil_to_2_pow_n<nmie::FloatType>(30));
  EXPECT_EQ(128, nmie::ceil_to_2_pow_n<nmie::FloatType>(100));
  EXPECT_EQ(256, nmie::ceil_to_2_pow_n<nmie::FloatType>(200));
  EXPECT_EQ(128, nmie::ceil_to_2_pow_n<nmie::FloatType>(128));
}

TEST(RunFieldCalculationPolar, HandlesInput) {
  nmie::MultiLayerMie<nmie::FloatType> nmie;
  EXPECT_THROW(nmie.RunFieldCalculationPolar(0), std::invalid_argument);
  EXPECT_THROW(nmie.RunFieldCalculationPolar(1,1,10,5), std::invalid_argument);
  nmie.RunFieldCalculationPolar();
}
//TEST(BulkSphere, HandlesInput) {
//  nmie::MultiLayerMie<nmie::FloatType> nmie;
//  // A list of tests for a bulk sphere from
//  // Hong Du, "Mie-scattering calculation," Appl. Opt. 43, 1951-1956 (2004)
//  // table 1: sphere size and refractive index
//  // followed by resulting extinction and scattering efficiencies
//  std::vector< std::tuple< double, std::complex<double>, double, double, char > >
//      parameters_and_results
//      {
//          // x, {Re(m), Im(m)}, Qext, Qsca, test_name
//          {0.099, {0.75,0}, 7.417859e-06, 7.417859e-06, 'a'},
//          {0.101, {0.75,0}, 8.033538e-06, 8.033538e-06, 'b'},
//          {10,    {0.75,0},     2.232265, 2.232265, 'c'},
//          {100,   {1.33,1e-5}, 2.101321, 2.096594, 'e'},
//          {0.055, {1.5, 1},    0.10149104, 1.131687e-05, 'g'},
//          {0.056, {1.5, 1},   0.1033467, 1.216311e-05, 'h'},
//          {100,   {1.5, 1},    2.097502, 1.283697, 'i'},
//          {1,     {10,  10},   2.532993, 2.049405, 'k'},
//          {1000,  {0.75,0},     1.997908, 1.997908, 'd'},
//          {100,   {10,  10,},  2.071124, 1.836785, 'l'},
//          {10000, {1.33,1e-5}, 2.004089, 1.723857, 'f'},
//          {10000, {1.5, 1},    2.004368, 1.236574, 'j'},
//          {10000, {10,  10},   2.005914, 1.795393, 'm'},
//      };
//  for (const auto &data : parameters_and_results) {
//    auto x = std::get<0>(data);
//    auto m = std::get<1>(data);
////    auto Nstop = nmie::LeRu_cutoff(m*x)+1;
//
//    nmie.SetLayersSize({x});
//    nmie.SetLayersIndex({m});
////    nmie.SetMaxTerms(Nstop);
//    nmie.RunMieCalculation();
//    double Qext = static_cast<double>(nmie.GetQext());
//    double Qsca = static_cast<double>(nmie.GetQsca());
//    double Qext_Du =  std::get<2>(data);
//    double Qsca_Du =  std::get<3>(data);
//    EXPECT_FLOAT_EQ(Qext_Du, Qext)
//              << "Extinction of the bulk sphere, test case:" << std::get<4>(data)
//              << "\nnmax_ = " << nmie.GetMaxTerms();
//    EXPECT_FLOAT_EQ(Qsca_Du, Qsca)
//              << "Scattering of the bulk sphere, test case:" << std::get<4>(data);
//  }
//}
int main(int argc, char **argv) {
  testing::InitGoogleTest(&argc, argv);
  return RUN_ALL_TESTS();
}