DD.WellWorkover.Cloud/AsbCloudWebApi.Tests/AspExtensions.cs

using Microsoft.Extensions.DependencyInjection;
using System.Linq;

namespace AsbCloudWebApi.Tests;

public static class AspExtensions
{
    public static IServiceCollection ReplaceService<T>(this IServiceCollection services, T instance)
        where T : notnull
    {
        var typeofT = typeof(T);
        var originalDecriptor = services.Last(s => s.ServiceType == typeofT);
        var newDecriptor = new ServiceDescriptor(typeofT, instance);
        services.Remove(originalDecriptor);
        services.Add(newDecriptor);
        return services;
    }
}