//
//  frequency_monobit.cpp
//  rng
//
//  Created by Asher Falcon on 21/06/2025.
//

#include "../rng.h"
#include "./rngtest.h"
#include "./frequency_monobit.h"

namespace splat {
  frequency_monobit_test::frequency_monobit_test(std::vector<std::bitset<32>> &testData) : RNGTEST(testData) {
    testPValue = runTest(data);
    testPassed = testPValue > 0.01;
  }

  double frequency_monobit_test::runTest(std::vector<std::bitset<32>> &data) {
      long long s = 0;
      for(auto bitset : data){
          for(int i=0; i<32; i++){
              s += (2*bitset[i])-1;
          }
      }
      double sobs = ((double)std::abs(s))/std::sqrt(data.size()*32);
      double pvalue = std::erfc(sobs/std::sqrt(2));
      return pvalue;
  }
  std::string frequency_monobit_test::getName() {
    return "Frequency Monobit";
  }
}