From c2e70764004d6e485da41fa8ca8a384c541a3de1 Mon Sep 17 00:00:00 2001
From: Kevin Jahns <kevin.jahns@protonmail.com>
Date: Mon, 20 Nov 2023 12:53:58 +0100
Subject: [PATCH] add iterator type checks

---
 tests/y-map.tests.js | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/tests/y-map.tests.js b/tests/y-map.tests.js
index 346bd746..70b3e3b1 100644
--- a/tests/y-map.tests.js
+++ b/tests/y-map.tests.js
@@ -8,6 +8,31 @@ import * as Y from '../src/index.js'
 import * as t from 'lib0/testing'
 import * as prng from 'lib0/prng'
 
+/**
+ * @param {t.TestCase} _tc
+ */
+export const testIterators = _tc => {
+  const ydoc = new Y.Doc()
+  /**
+   * @type {Y.Map<number>}
+   */
+  const ymap = ydoc.getMap()
+  // we are only checking if the type assumptions are correct
+  /**
+   * @type {Array<number>}
+   */
+  const vals = Array.from(ymap.values())
+  /**
+   * @type {Array<[string,number]>}
+   */
+  const entries = Array.from(ymap.entries())
+  /**
+   * @type {Array<string>}
+   */
+  const keys = Array.from(ymap.keys())
+  console.log(vals, entries, keys)
+}
+
 /**
  * Computing event changes after transaction should result in an error. See yjs#539
  *