public async void GetLangagesByContinentAsync_With_Null_Service_Return_Error500()
        {
            HRLangagesByContinentControllerForker forker = new HRLangagesByContinentControllerForker();

            using (Task <(int, IEnumerable <Language>)> task = forker.GetLangagesByContinentAsync(null, "Africa"))
            {
                await task;
                Assert.True(task.Result.Item1 == StatusCodes.Status500InternalServerError);
            }
        }
        public async void GetLangagesByContinentAsync_With_Convertible_Region_Return_Status_200()
        {
            HRLangagesByContinentControllerForker forker = new HRLangagesByContinentControllerForker();
            CoreCountriesServiceStub serviceStub         = new CoreCountriesServiceStub(null);

            using (Task <(int, IEnumerable <Language>)> task = forker.GetLangagesByContinentAsync(serviceStub, "Africa"))
            {
                await task;
                Assert.True(task.Result.Item1 == StatusCodes.Status200OK);
            }
        }