snapshot of https://github.com/excalidraw/excalidraw.git (master, 2026-09-16; blobs > 131072B omitted)

packages/excalidraw/mermaid.test.ts

@@ -0,0 +1,15 @@
+import { isMaybeMermaidDefinition } from "./mermaid";
+
+describe("isMaybeMermaidDefinition", () => {
+  it("should return true for a valid mermaid definition", () => {
+    expect(isMaybeMermaidDefinition("flowchart")).toBe(true);
+    expect(isMaybeMermaidDefinition("flowchart LR")).toBe(true);
+    expect(isMaybeMermaidDefinition("flowchart LR\nola")).toBe(true);
+    expect(isMaybeMermaidDefinition("%%{}%%flowchart")).toBe(true);
+    expect(isMaybeMermaidDefinition("%%{}%% flowchart")).toBe(true);
+
+    expect(isMaybeMermaidDefinition("graphs")).toBe(false);
+    expect(isMaybeMermaidDefinition("this flowchart")).toBe(false);
+    expect(isMaybeMermaidDefinition("this\nflowchart")).toBe(false);
+  });
+});