crystall-punk-14/Content.IntegrationTests/Tests/CargoTest.cs

using System.Threading.Tasks;
using Content.Server.Cargo.Systems;
using Content.Shared.Cargo.Prototypes;
using NUnit.Framework;
using Robust.Shared.GameObjects;
using Robust.Shared.Map;
using Robust.Shared.Maths;
using Robust.Shared.Prototypes;

namespace Content.IntegrationTests.Tests;

[TestFixture]
public sealed class CargoTest
{
    [Test]
    public async Task NoCargoOrderArbitrage()
    {
        await using var pairTracker = await PoolManager.GetServerClient(new PoolSettings() {NoClient = true});
        var server = pairTracker.Pair.Server;

        var entManager = server.ResolveDependency<IEntityManager>();
        var mapManager = server.ResolveDependency<IMapManager>();
        var protoManager = server.ResolveDependency<IPrototypeManager>();
        var pricing = server.ResolveDependency<IEntitySystemManager>().GetEntitySystem<PricingSystem>();

        await server.WaitAssertion(() =>
        {
            var mapId = mapManager.CreateMap();

            foreach (var proto in protoManager.EnumeratePrototypes<CargoProductPrototype>())
            {
                var ent = entManager.SpawnEntity(proto.Product, new MapCoordinates(Vector2.Zero, mapId));
                var price = pricing.GetPrice(ent);

                Assert.That(price, Is.LessThan(proto.PointCost), $"Found arbitrage on {proto.ID} cargo product! Cost is {proto.PointCost} but sell is {price}!");
                entManager.DeleteEntity(ent);
            }

            mapManager.DeleteMap(mapId);
        });

        await pairTracker.CleanReturnAsync();
    }
}