Refactor Study Desk application structure

src/lib/shareMetadata.test.ts

@@ -0,0 +1,34 @@
+import { describe, expect, it } from "vitest";
+import { buildShareMetadata, type ShareMetaLink } from "./shareMetadata";
+
+describe("buildShareMetadata", () => {
+  const deckLink: ShareMetaLink = {
+    targetType: "DECK",
+    deck: {
+      name: "Deck",
+      description: null,
+      class: { slug: "class", name: "Class" },
+      _count: { cards: 3 },
+    },
+    quizSet: null,
+    group: null,
+  };
+
+  it("does not describe a token under a mismatched shared route type", () => {
+    expect(
+      buildShareMetadata(deckLink, {
+        classSlug: "class",
+        pathType: "quizzes",
+      }).title
+    ).toBe("Study Desk");
+  });
+
+  it("describes the target only when token, class, and route type agree", () => {
+    expect(
+      buildShareMetadata(deckLink, {
+        classSlug: "class",
+        pathType: "flashcards",
+      }).title
+    ).toContain("Deck");
+  });
+});