test(set): fix set testing

unadlib · Nov 17, 2024 · 46a61d4 · 46a61d4
1 parent 5037fed
commit 46a61d4
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Showing 2 changed files with 17 additions and 2 deletions.
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
@@ -14,10 +14,10 @@ jobs:
 
     - uses: actions/checkout@v1
 
-    - name: Use Node.js 18.x
+    - name: Use Node.js 22.x
       uses: actions/setup-node@v1
       with:
-        node-version: 18.x
+        node-version: 22.x
 
     - name: yarn install, yarn test:coverage
       run: |

diff --git a/test/index.test.ts b/test/index.test.ts
@@ -4089,6 +4089,21 @@ describe('set - new API', () => {
   if (!Set.prototype.difference) {
     return;
   }
+  test('set - without Set.prototype.difference', () => {
+    // @ts-ignore
+    const difference = Set.prototype.difference;
+    // @ts-ignore
+    delete Set.prototype.difference;
+    const odds = new Set([1, 3, 5, 7, 9]);
+    const squares = new Set([1, 4, 9]);
+    const state = create(odds, (draft) => {
+      // @ts-ignore
+      expect(() => draft.difference(squares)).toThrow();
+    });
+    // @ts-ignore
+    Set.prototype.difference = difference;
+  });
+
   test('set - Set.prototype.intersection', () => {
     const odds = new Set([1, 3, 5, 7, 9]);
     const squares = new Set([1, 4, 9]);