public void ExerciseTestMethodInsert()
{
var exerciseManager = new ExerciseManager(sUoW, mapper);
exerciseManager.Insert(new ExerciseDTO()
{
Id = 1, TaskName = "TestTask3", CreateDateTime = DateTime.Now, UpdateDateTime = DateTime.Now, TaskTextField = "This is third UnitTest task"
});
sUoW.Received(1).Save();
sUoW.ClearReceivedCalls();
}