[Test] Add unit tests - complex floating links & nodes (#796)

test/testExtensions.ts

@@ -5,6 +5,7 @@ import { test as baseTest } from "vitest"
 import { LGraph } from "@/LGraph"
 import { LiteGraph } from "@/litegraph"
 
+import floatingBranch from "./assets/floatingBranch.json"
 import floatingLink from "./assets/floatingLink.json"
 import linkedNodes from "./assets/linkedNodes.json"
 import { basicSerialisableGraph, minimalSerialisableGraph, oldSchemaGraph } from "./assets/testGraphs"
@@ -15,6 +16,8 @@ interface LitegraphFixtures {
   oldSchemaGraph: ISerialisedGraph
   floatingLinkGraph: ISerialisedGraph
   linkedNodesGraph: ISerialisedGraph
+  floatingBranchSerialisedGraph: ISerialisedGraph
+  floatingBranchGraph: LGraph
 }
 
 /** These fixtures alter global state, and are difficult to reset. Relies on a single test per-file to reset state. */
@@ -35,6 +38,12 @@ export const test = baseTest.extend<LitegraphFixtures>({
   oldSchemaGraph: structuredClone(oldSchemaGraph),
   floatingLinkGraph: structuredClone(floatingLink as unknown as ISerialisedGraph),
   linkedNodesGraph: structuredClone(linkedNodes as unknown as ISerialisedGraph),
+  floatingBranchSerialisedGraph: structuredClone(floatingBranch as unknown as ISerialisedGraph),
+  floatingBranchGraph: async ({ floatingBranchSerialisedGraph }, use) => {
+    const cloned = structuredClone(floatingBranchSerialisedGraph)
+    const graph = new LGraph(cloned)
+    await use(graph)
+  },
 })
 
 /** Test that use {@link DirtyFixtures}. One test per file. */