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node_modules/@weborigami/async-tree/test/drivers/DeepMapTree.test.js

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+import assert from "node:assert";
+import { describe, test } from "node:test";
+import DeepMapTree from "../../src/drivers/DeepMapTree.js";
+import { Tree } from "../../src/internal.js";
+
+describe("DeepMapTree", () => {
+  test("returns a DeepMapTree for value that's a Map", async () => {
+    const tree = new DeepMapTree([
+      ["a", 1],
+      ["map", new Map([["b", 2]])],
+    ]);
+    const map = await tree.get("map");
+    assert.equal(map instanceof DeepMapTree, true);
+    assert.deepEqual(await Tree.plain(map), { b: 2 });
+    assert.equal(map.parent, tree);
+  });
+});