Initial Commit

packages/networking/drive/drive-template/tests/template-too-deep.test.ts

@@ -0,0 +1,43 @@
+/**
+ * DTP-08 — folder depth cap.
+ */
+
+import { describe, expect, it } from "@suaveplan/testing/runner";
+import type { FolderTemplate } from "../src/index.js";
+import {
+    assertFolderDepth,
+    type DriveTemplateError,
+    DTP_CODES,
+    MAX_FOLDER_DEPTH,
+} from "../src/index.js";
+
+function chain(depth: number): FolderTemplate {
+    let node: FolderTemplate = { name: `level-${depth}`, children: [] };
+    for (let i = depth - 1; i >= 0; i--) {
+        node = { name: `level-${i}`, children: [node] };
+    }
+    return node;
+}
+
+describe("DTP-08 — folder depth cap", () => {
+    it("MAX_FOLDER_DEPTH pinned at 32", { timeout: 5000 }, () => {
+        expect(MAX_FOLDER_DEPTH).toBe(32);
+    });
+
+    it("depth-32 nested folder accepted", { timeout: 5000 }, () => {
+        const tree = chain(32);
+        expect(() => assertFolderDepth(tree)).not.toThrow();
+    });
+
+    it("depth-33 nested folder rejected", { timeout: 5000 }, () => {
+        const tree = chain(33);
+        try {
+            assertFolderDepth(tree);
+            throw new Error("expected TOO_DEEP");
+        } catch (err) {
+            expect((err as DriveTemplateError).code).toBe(
+                DTP_CODES.TEMPLATE_TOO_DEEP
+            );
+        }
+    });
+});