public void CreateEntityReturnsCalled()
{
//Setup
var mService = new Mock <IClassService>();
mService.Setup(mock => mock.CreateEntity(It.IsAny <int>(), It.IsAny <int>(), It.IsAny <ClassDTO>()));
//Action
var controller = new ClassController(mService.Object);
controller.CreateEntity(It.IsAny <int>(), It.IsAny <int>(), It.IsAny <ClassDTO>());
//Assert
mService.Verify(mock => mock.CreateEntity(It.IsAny <int>(), It.IsAny <int>(), It.IsAny <ClassDTO>()), Times.Once);
}