public async Task AddServiceTypeAsync_Returns_New_ServiceType()
        {
            //Arrange
            var service = new ServiceTypeService(_myRestaurantContext);

            //Act
            var result = await service.AddServiceTypeAsync(new ServiceType { Type = "Buffet" });

            //Assert
            result.Should().BeAssignableTo <ServiceType>();
            result.Type.Should().Be("Buffet");

            //Act
            var stockTypes = await service.GetServiceTypesAsync();

            //Assert
            stockTypes.Should().HaveCount(3);
        }