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);
}