fix: Fix containing various changes that stacked up in a period of time (#22)

packages/kits/.config/vitest/setup.ts

@@ -0,0 +1,48 @@
+import '@testing-library/jest-dom';
+import { vi } from 'vitest';
+
+class ResizeObserverMock {
+  observe = vi.fn();
+  unobserve = vi.fn();
+  disconnect = vi.fn();
+}
+
+global.ResizeObserver = ResizeObserverMock;
+
+Object.defineProperty(window, 'matchMedia', {
+  writable: true,
+  value: vi.fn().mockImplementation((query) => ({
+    matches: false,
+    media: query,
+    onchange: null,
+    addListener: vi.fn(), // Deprecated
+    removeListener: vi.fn(), // Deprecated
+    addEventListener: vi.fn(),
+    removeEventListener: vi.fn(),
+    dispatchEvent: vi.fn(),
+  })),
+});
+
+// jsdom sometimes does not expose localStorage.clear(); provide a functional polyfill
+if (typeof window.localStorage.clear !== 'function') {
+  const store = new Map<string, string>();
+  Object.defineProperty(window, 'localStorage', {
+    configurable: true,
+    value: {
+      getItem: (key: string): string | null => store.get(key) ?? null,
+      setItem: (key: string, value: string): void => {
+        store.set(key, value);
+      },
+      removeItem: (key: string): void => {
+        store.delete(key);
+      },
+      clear: (): void => {
+        store.clear();
+      },
+      key: (index: number): string | null => [...store.keys()][index] ?? null,
+      get length(): number {
+        return store.size;
+      },
+    },
+  });
+}