From bc77b2464a42bd579337af757833eea338112951 Mon Sep 17 00:00:00 2001
From: unadlib <unadlib@gmail.com>
Date: Thu, 9 Nov 2023 22:54:45 +0800
Subject: [PATCH] fix(test): add testing

---
 test/index.test.ts | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/test/index.test.ts b/test/index.test.ts
index 25d9505e..2455a74d 100644
--- a/test/index.test.ts
+++ b/test/index.test.ts
@@ -3359,3 +3359,15 @@ test('map: assigning a non-draft array', () => {
 
   expect(state.data.size).toBe(0);
 });
+
+test('#20 - Filter does not work correctly when array contains objects', () => {
+  const baseState = {
+    array: [{ x: 1 }],
+  };
+
+  const state = create(baseState, (draft) => {
+    draft.array = draft.array.filter((o) => o.x !== 1);
+  });
+
+  expect(state.array).toEqual([]);
+});