test: add test for array and object signal update

.eslintrc

@@ -23,7 +23,9 @@
     {
       "files": ["*.test.js"],
       "rules": {
-        "@typescript-eslint/no-floating-promises": "off"
+        "@typescript-eslint/no-floating-promises": 0,
+        "@typescript-eslint/no-unsafe-argument": 0,
+        "@typescript-eslint/no-unsafe-return": 0
       }
     }
   ]

.github/workflows/ci.yml

@@ -7,7 +7,7 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  lint:
+  ci:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4

src/signal/signals.test.js

@@ -65,6 +65,42 @@ describe('signal', () => {
       check(1, 1);
     });
   });
+
+  test('notifies on array update', async () => {
+    const [get, set] = signal([]);
+    let expect = 0;
+    const unsubscribe = effect(() => {
+      strictEqual(expect, get().length);
+    });
+    expect++;
+    set(
+      (() => {
+        const a = get();
+        a.push({});
+        return a;
+      })(),
+    );
+    await tick();
+    unsubscribe();
+  });
+
+  test('notifies on object update', async () => {
+    const [get, set] = signal({});
+    let expect = 0;
+    const unsubscribe = effect(() => {
+      strictEqual(expect, Object.keys(get()).length);
+    });
+    expect++;
+    set(
+      (() => {
+        const a = get();
+        a.a = '';
+        return a;
+      })(),
+    );
+    await tick();
+    unsubscribe();
+  });
 });
 
 test('effect', async () => {