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