[Test] Add more tests on reroute (#793)

test/assets/linkedNodes.json

@@ -0,0 +1,96 @@
+{
+  "id": "26a34f13-1767-4847-b25f-a21dedf6840d",
+  "revision": 0,
+  "last_node_id": 3,
+  "last_link_id": 2,
+  "nodes": [
+    {
+      "id": 2,
+      "type": "VAEDecode",
+      "pos": [
+        63.44815444946289,
+        178.71633911132812
+      ],
+      "size": [
+        210,
+        46
+      ],
+      "flags": {},
+      "order": 0,
+      "mode": 0,
+      "inputs": [
+        {
+          "name": "samples",
+          "type": "LATENT",
+          "link": null
+        },
+        {
+          "name": "vae",
+          "type": "VAE",
+          "link": null
+        }
+      ],
+      "outputs": [
+        {
+          "name": "IMAGE",
+          "type": "IMAGE",
+          "links": [
+            2
+          ]
+        }
+      ],
+      "properties": {
+        "Node name for S&R": "VAEDecode"
+      },
+      "widgets_values": []
+    },
+    {
+      "id": 3,
+      "type": "SaveImage",
+      "pos": [
+        419.36920166015625,
+        179.71388244628906
+      ],
+      "size": [
+        226.3714141845703,
+        58
+      ],
+      "flags": {},
+      "order": 1,
+      "mode": 0,
+      "inputs": [
+        {
+          "name": "images",
+          "type": "IMAGE",
+          "link": 2
+        }
+      ],
+      "outputs": [],
+      "properties": {},
+      "widgets_values": [
+        "ComfyUI"
+      ]
+    }
+  ],
+  "links": [
+    [
+      2,
+      2,
+      0,
+      3,
+      0,
+      "IMAGE"
+    ]
+  ],
+  "groups": [],
+  "config": {},
+  "extra": {
+    "linkExtensions": [
+      {
+        "id": 2,
+        "parentId": 1
+      }
+    ]
+  },
+  "version": 0.4
+}