Add test

test/LGraphCanvas.test.ts

@@ -0,0 +1,26 @@
+import { lgTest } from "./lgTest"
+import { expect, describe, vi } from "vitest"
+import { LGraphCanvas } from "@/LGraphCanvas"
+import { LinkRenderType } from "@/types/globalEnums"
+
+describe("Link rendering", () => {
+  lgTest("should not draw link mouseover effect when links are hidden", () => {
+    const mockCtx = {
+      fillText: vi.fn(),
+      measureText: vi.fn(() => ({ width: 100 })),
+    } as unknown as CanvasRenderingContext2D
+
+    const mockLink = {} as any
+
+    const mockCanvas: Partial<LGraphCanvas> = {
+      links_render_mode: LinkRenderType.HIDDEN_LINK,
+    } as LGraphCanvas
+
+    // Directly call the method that draws link mouseover effects and tooltips
+    const drawLinkTooltip = LGraphCanvas.prototype.drawLinkTooltip
+    drawLinkTooltip.call(mockCanvas, mockCtx, mockLink)
+
+    // Verify that no text rendering was attempted
+    expect(mockCtx.fillText).not.toHaveBeenCalled()
+  })
+})