C#
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using CarManagementSystem.Infrastructure.Data;
using CarManagementSystem.Application.Services;
using CarManagementSystem.Core.Interfaces;
using CarManagementSystem.Infrastructure.Repositories;
using CarManagementSystem.Core.Entities;
using CarManagementSystem.Helpers;

Console.WriteLine(Guid.NewGuid().ToString());


/*var host = Host.CreateDefaultBuilder(args)
    .ConfigureServices((context, services) =>
    {
        // Register DbContext
        services.AddDbContext<CarContext>(options =>
            options.UseSqlServer("REAL CONNECTION STRING HOWEVER OUT-COMMENTED"));

        // Register repositories and services
        services.AddScoped<ICarRepository, CarRepository>();
        services.AddScoped<CarService>();
    })
    .Build();

// Rest of your code remains unchanged
using (var scope = host.Services.CreateScope())
{
    var services = scope.ServiceProvider;

    try
    {
        var CarService = services.GetRequiredService<CarService>();

        // Example usage of the CarService
        var Car = new Car
        {
            SerialNumber = Guid.NewGuid(),
            ModelId = "",
            ModelName = "",
            Manufacturer = "",
            PrimaryUser = "",
            CarType = CarType.SUV,
            Status = CarStatus.Active
        };

        CarService.AddCar(Car);

        var activeCars = CarService.GetActiveCars();
        foreach (var d in activeCars)
        {
            Console.WriteLine($"{d.ModelName} - {d.Status}");
        }
    }
    catch (Exception ex)
    {
        Console.WriteLine($"An error occurred: {ex.Message}");
    }
}

await host.RunAsync();*/

C#
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using CarManagementSystem.Infrastructure.Data;
using CarManagementSystem.Application.Services;
using CarManagementSystem.Core.Interfaces;
using CarManagementSystem.Infrastructure.Repositories;
using CarManagementSystem.Core.Entities;
using CarManagementSystem.Helpers;

Console.WriteLine(Guid.NewGuid().ToString());


/*var host = Host.CreateDefaultBuilder(args)
    .ConfigureServices((context, services) =>
    {
        // Register DbContext
        services.AddDbContext<CarContext>(options =>
            options.UseSqlServer("REAL CONNECTION STRING HOWEVER OUT-COMMENTED"));

        // Register repositories and services
        services.AddScoped<ICarRepository, CarRepository>();
        services.AddScoped<CarService>();
    })
    .Build();

// Rest of your code remains unchanged
using (var scope = host.Services.CreateScope())
{
    var services = scope.ServiceProvider;

    try
    {
        var CarService = services.GetRequiredService<CarService>();

        // Example usage of the CarService
        var Car = new Car
        {
            SerialNumber = Guid.NewGuid(),
            ModelId = "",
            ModelName = "",
            Manufacturer = "",
            PrimaryUser = "",
            CarType = CarType.SUV,
            Status = CarStatus.Active
        };

        CarService.AddCar(Car);

        var activeCars = CarService.GetActiveCars();
        foreach (var d in activeCars)
        {
            Console.WriteLine($"{d.ModelName} - {d.Status}");
        }
    }
    catch (Exception ex)
    {
        Console.WriteLine($"An error occurred: {ex.Message}");
    }
}

await host.RunAsync();*/

C# 
public class CarContext : DbContext
{
    public CarContext(DbContextOptions<CarContext> options) : base(options)
    {
    }

    public DbSet<Car> Cars { get; set; }

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        modelBuilder.Entity<Car>()
            .Property(d => d.CarType)
            .HasConversion<string>();

        modelBuilder.Entity<Car>()
            .Property(d => d.Status)
            .HasConversion<string>();
    }
}

C# 
public class CarContext : DbContext
{
    public CarContext(DbContextOptions<CarContext> options) : base(options)
    {
    }

    public DbSet<Car> Cars { get; set; }

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        modelBuilder.Entity<Car>()
            .Property(d => d.CarType)
            .HasConversion<string>();

        modelBuilder.Entity<Car>()
            .Property(d => d.Status)
            .HasConversion<string>();
    }
}

C#
Assert.Throws<InvalidOperationException>(() => car.ModelName = "test");

C#
Assert.Throws<InvalidOperationException>(() => car.ModelName = "test");