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