feat: Initial clean release of CHM

packages/lib/hooks/useNowEffect.test.ts

@@ -0,0 +1,30 @@
+import '../testing/dom-test-environment';
+import type * as React from 'react';
+import { renderHook } from '@testing-library/react';
+import useNowEffect from './useNowEffect';
+
+describe('useNowEffect', () => {
+	test('should call the cleanup callback when the effect function is called and after unmount', async () => {
+		const cleanupFunction = jest.fn(() => {});
+		const effectFunction = jest.fn(() => cleanupFunction);
+		const useTestHook = (dependencies: React.DependencyList) => {
+			return useNowEffect(effectFunction, dependencies);
+		};
+
+		const hook = renderHook(useTestHook, { initialProps: [0] });
+		expect(cleanupFunction).not.toHaveBeenCalled();
+		expect(effectFunction).toHaveBeenCalledTimes(1);
+
+		hook.rerender([0]);
+		expect(cleanupFunction).not.toHaveBeenCalled();
+		expect(effectFunction).toHaveBeenCalledTimes(1);
+
+		hook.rerender([1]);
+		expect(cleanupFunction).toHaveBeenCalledTimes(1);
+		expect(effectFunction).toHaveBeenCalledTimes(2);
+
+		hook.unmount();
+		expect(cleanupFunction).toHaveBeenCalledTimes(2);
+		expect(effectFunction).toHaveBeenCalledTimes(2);
+	});
+});