#include "polygon.h"
#include "polygon.h" // multiple include should work

#include <iostream>

int main()
{
  std::cout << "Testing the Polygons." << std::endl;

  Polygon p1{3, 4};
  std::cout << p1 << std::endl;

  Polygon p2{2, 6};
  p2 += 7;
  std::cout << p2 << std::endl;

  std::cout << p2 + 9 << std::endl;

  std::cout << 1 + p2 << std::endl;

  try
  {
    Polygon p3{ 7, 5 };
    p3 += 0;
    p3 += 8;
  }
  catch(std::invalid_argument const& e)
  {
    std::cout << e.what() << std::endl;
  }
  
  try
  {
    Polygon p4{ 7, 5 };
    p4 += 0;
  }
  catch(std::invalid_argument const& e)
  {
    std::cout << e.what() << std::endl;
  }

  {
    // Polygon p5{ 7 }; // Should not compile!
  }
  // Just to produce same output as other test function
  std::cout << "Bad polygon: To few sides" << std::endl;
}