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#ifndef WASSERSTEIN_TESTS_READER_H
#define WASSERSTEIN_TESTS_READER_H
#include <vector>
#include <string>
#include <ostream>
#include <iostream>
#include <sstream>
#include <cassert>
#include <cmath>
#include "hera_infinity.h"
namespace hera_test {
inline std::vector<std::string> split_on_delim(const std::string& s, char delim)
{
std::stringstream ss(s);
std::string token;
std::vector<std::string> tokens;
while (std::getline(ss, token, delim)) {
tokens.push_back(token);
}
return tokens;
}
// single row in a file with test cases
struct TestFromFileCase
{
std::string file_1;
std::string file_2;
double q;
double internal_p;
double answer;
TestFromFileCase(std::string s)
{
auto tokens = split_on_delim(s, ' ');
assert(tokens.size() == 5);
file_1 = tokens.at(0);
file_2 = tokens.at(1);
q = std::stod(tokens.at(2));
internal_p = std::stod(tokens.at(3));
answer = std::stod(tokens.at(4));
if (q < 1.0 or std::isinf(q) or
(internal_p != hera::get_infinity<double>() and internal_p < 1.0)) {
throw std::runtime_error("Bad line in test_list.txt");
}
}
};
inline std::ostream& operator<<(std::ostream& out, const TestFromFileCase& s)
{
out << "[" << s.file_1 << ", " << s.file_2 << ", q = " << s.q << ", norm = ";
if (s.internal_p != hera::get_infinity()) {
out << s.internal_p;
} else {
out << "infinity";
}
out << ", answer = " << s.answer << "]";
return out;
}
} // namespace hera_test
#endif //WASSERSTEIN_TESTS_READER_H
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