#define BOOST_TEST_MODULE  f_to_c_test_suite 
#include <boost/test/unit_test.hpp>
#include <boost/test/included/unit_test.hpp>

#include "FtoC.h"

using namespace std;
using namespace boost::test_tools;

BOOST_AUTO_TEST_SUITE(f_to_c)

void DoALoopTest() {
    double dc = 5.0/9.0;
    double df = 1.0;
    double cent;
    double f = 32.0;
    double tmp;

    for(cent = 0; cent <= 100; cent += dc) {
       tmp = CtoF(static_cast<float>(cent));

       BOOST_TEST(f == tmp);
       f += df;
    }

    f = 32.0;

    for(cent = 0; cent > -100; cent -=dc) {
       tmp = CtoF(static_cast<float>(cent));
       BOOST_TEST(f == tmp, tolerance(0.001) );
       f -= df;
    }

    return;
}

// test some default values
BOOST_AUTO_TEST_CASE(basic_tests) {
    BOOST_TEST(0 == FtoC(32));
    BOOST_TEST(100 == FtoC(212));
    BOOST_TEST(32 == CtoF(0));
    BOOST_TEST(212 == CtoF(100));
}

// check all values for F between -100 and 100c.
BOOST_AUTO_TEST_CASE(Loop_Through_C_test) {
     DoALoopTest(); 
}

BOOST_AUTO_TEST_SUITE_END()