Nektar::LibUtilities::CheckCastUnitTest Namespace Reference

Functions
	BOOST_AUTO_TEST_CASE (TestDoubleToInt)

Function Documentation

BOOST_AUTO_TEST_CASE()

Nektar::LibUtilities::CheckCastUnitTest::BOOST_AUTO_TEST_CASE

(

TestDoubleToInt

)

Definition at line 49 of file TestCheckedCast.cpp.

{
    // expecting to convert
    {
        double adouble = std::numeric_limits<int>::max();
        int aint       = checked_cast<int>(adouble);
        BOOST_CHECK_EQUAL(aint, adouble);
    }
    {
        double adouble = std::numeric_limits<int>::min();
        int aint       = checked_cast<int>(adouble);
        BOOST_CHECK_EQUAL(aint, adouble);
    }
 
    // expecting to fail and throw
    try
    {
        double adouble = std::numeric_limits<int>::max() + 1.0;
        int aint       = checked_cast<int>(adouble);
        BOOST_CHECK_EQUAL(aint, adouble);
    }
    catch (std::runtime_error &e)
    {
        std::string errmss = e.what();
        BOOST_CHECK_EQUAL("Level 0 assertion violation", errmss.substr(0, 27));
    }
 
    try
    {
        double adouble = std::numeric_limits<int>::min() - 1.0;
        int aint       = checked_cast<int>(adouble);
        BOOST_CHECK_EQUAL(aint, adouble);
    }
    catch (std::runtime_error &e)
    {
        std::string errmss = e.what();
        BOOST_CHECK_EQUAL("Level 0 assertion violation", errmss.substr(0, 27));
    }
}