Add cargo shuttle (#8686)

Content.IntegrationTests/Tests/CargoTest.cs

@@ -0,0 +1,39 @@
+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 NoArbitrage()
+    {
+        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!");
+            }
+        });
+    }
+}