cmoon::test::assert_is_instance

Defined in module <cmoon.test>



template<class Type, class F>
void assert_is_instance(const F& obj, std::string_view message = "", const std::source_location& location = std::source_location::current());

(1)

Throws an assert_exception if the expression dynamic_cast<const Type*>(std::addressof(obj)) is nullptr.

Parameters

obj	-	Object to be casted to `Type`
message	-	Extra information to be added to the error message
location	-	Information about where in the file this assertion was ran

Return value

(none)

Example



import <sstream>;
import <iostream>;

import cmoon.test;

class example_test : public cmoon::test::test_case
{
    public:
        example_test()
            : cmoon::test::test_case{"example test"} {}

        void operator()() override
        {
            std::stringstream stream;

            cmoon::test::assert_is_instance<std::iostream>(stream);
        }
};