Add a test to verify that all device signal sink ports can trigger (#35891)

* Add test of all device link sink ports

* Revert the fixed problem to prove that the test works.
Revert "Fix SpawnAndDeleteAllEntitiesInTheSameSpot heisentest (#32330)"

This reverts commit 4704309b4e.

* Revert "Revert the fixed problem to prove that the test works."

This reverts commit cf0dbe797243552d8a63afefced2acd6829c3887.

* Assert that test devices aren't deleted between port triggers

* Test each port on a different map too

* Convert Linq to guard clauses

* Update Content.IntegrationTests/Tests/DeviceLinking/DeviceLinkingTest.cs

* More informative failure message

* Delete map after each test

* Don't bother sorting by ID

---------

Co-authored-by: slarticodefast <161409025+slarticodefast@users.noreply.github.com>

Content.IntegrationTests/Tests/DeviceLinking/DeviceLinkingTest.cs

@@ -0,0 +1,94 @@
+using System.Collections.Generic;
+using System.Linq;
+using Content.Server.DeviceLinking.Systems;
+using Content.Shared.DeviceLinking;
+using Content.Shared.Prototypes;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Map;
+using Robust.Shared.Maths;
+using Robust.Shared.Prototypes;
+
+namespace Content.IntegrationTests.Tests.DeviceLinking;
+
+public sealed class DeviceLinkingTest
+{
+    private const string PortTesterProtoId = "DeviceLinkingSinkPortTester";
+
+    [TestPrototypes]
+    private const string Prototypes = $@"
+- type: entity
+  id: {PortTesterProtoId}
+  components:
+  - type: DeviceLinkSource
+    ports:
+    - Output
+";
+
+    /// <summary>
+    /// Spawns every entity that has a <see cref="DeviceLinkSinkComponent"/>
+    /// and sends a signal to every port to make sure nothing causes an error.
+    /// </summary>
+    [Test]
+    public async Task AllDeviceLinkSinksWorkTest()
+    {
+        await using var pair = await PoolManager.GetServerClient();
+        var server = pair.Server;
+        var compFact = server.ResolveDependency<IComponentFactory>();
+        var mapMan = server.ResolveDependency<IMapManager>();
+        var mapSys = server.System<SharedMapSystem>();
+        var deviceLinkSys = server.System<DeviceLinkSystem>();
+
+        var prototypes = server.ProtoMan.EnumeratePrototypes<EntityPrototype>();
+
+        await server.WaitAssertion(() =>
+        {
+            Assert.Multiple(() =>
+            {
+                foreach (var proto in prototypes)
+                {
+                    if (proto.Abstract || pair.IsTestPrototype(proto))
+                        continue;
+
+                    if (!proto.TryGetComponent<DeviceLinkSinkComponent>(out var protoSinkComp, compFact))
+                        continue;
+
+                    foreach (var port in protoSinkComp.Ports)
+                    {
+                        // Create a map for each entity/port combo so they can't interfere
+                        mapSys.CreateMap(out var mapId);
+                        var grid = mapMan.CreateGridEntity(mapId);
+                        mapSys.SetTile(grid.Owner, grid.Comp, Vector2i.Zero, new Tile(1));
+                        var coord = new EntityCoordinates(grid.Owner, 0, 0);
+
+                        // Spawn the sink entity
+                        var sinkEnt = server.EntMan.SpawnEntity(proto.ID, coord);
+                        // Get the actual sink component, since the one we got from the prototype doesn't have its owner set up
+                        Assert.That(server.EntMan.TryGetComponent<DeviceLinkSinkComponent>(sinkEnt, out var sinkComp),
+                            $"Tester prototype does not have a DeviceLinkSourceComponent!");
+
+                        // Spawn the tester
+                        var sourceEnt = server.EntMan.SpawnEntity(PortTesterProtoId, coord);
+                        Assert.That(server.EntMan.TryGetComponent<DeviceLinkSourceComponent>(sourceEnt, out var sourceComp),
+                            $"Tester prototype does not have a DeviceLinkSourceComponent!");
+
+                        // Create a link from the tester's output to the target port on the sink
+                        deviceLinkSys.SaveLinks(null,
+                            sourceEnt,
+                            sinkEnt,
+                            [("Output", port.Id)],
+                            sourceComp,
+                            sinkComp);
+
+                        // Send a signal to the port
+                        Assert.DoesNotThrow(() => { deviceLinkSys.InvokePort(sourceEnt, "Output", null, sourceComp); },
+                            $"Exception thrown while triggering port {port.Id} of sink device {proto.ID}");
+
+                        mapSys.DeleteMap(mapId);
+                    }
+                }
+            });
+        });
+
+        await pair.CleanReturnAsync();
+    }
+}