feat: Initial clean release of CHM

packages/lib/hooks/useQueuedAsyncEffect.test.ts

@@ -0,0 +1,36 @@
+import '../testing/dom-test-environment';
+import type * as React from 'react';
+import { renderHook } from '@testing-library/react';
+import useQueuedAsyncEffect from './useQueuedAsyncEffect';
+import { runWithFakeTimers } from '../testing/test-utils';
+
+describe('useQueuedAsyncEffect', () => {
+	test('should debounce effect updates', async () => {
+		const effectFunction = jest.fn(async () => { });
+		const useTestHook = (dependencies: React.DependencyList) => {
+			return useQueuedAsyncEffect(effectFunction, dependencies);
+		};
+
+		await runWithFakeTimers(async () => {
+			const result = renderHook(useTestHook, { initialProps: ['test'] });
+
+			// Should pause to allow debouncing.
+			expect(effectFunction).not.toHaveBeenCalled();
+
+			await jest.advanceTimersByTimeAsync(12500);
+			expect(effectFunction).toHaveBeenCalledTimes(1);
+
+			await jest.advanceTimersByTimeAsync(1000);
+
+			// Changing twice quickly: Should only update once
+			result.rerender(['changed']);
+			expect(effectFunction).toHaveBeenCalledTimes(1);
+			result.rerender(['changed again']);
+			await jest.advanceTimersByTimeAsync(500);
+			expect(effectFunction).toHaveBeenCalledTimes(2);
+
+			await jest.advanceTimersByTimeAsync(500);
+			expect(effectFunction).toHaveBeenCalledTimes(2);
+		});
+	});
+});