✅ add tests to useMounted

Author: VitorLuizC

src/useAbortController/useAbortController.ts

@@ -1,6 +1,6 @@
 import { useCallback, useLayoutEffect, useState } from 'react';
 import getAbortController from './getAbortController';
-import useMounted from '../hooks/useMounted';
+import useMounted from '../useMounted';
 
 export type UseAbortControllerResult = {
   abort: () => void;

src/useMounted/index.ts

@@ -0,0 +1 @@
+export { default } from './useMounted';

src/useMounted/useMounted.test.ts

@@ -0,0 +1,18 @@
+/** @jest-environment jsdom */
+
+import { renderHook } from '@testing-library/react';
+import useMounted from './useMounted';
+
+describe('useMounted | integration tests', () => {
+  it('returns a function that checks if component is mounted', () => {
+    const { result, unmount } = renderHook(useMounted);
+
+    const mounted = result.current;
+
+    expect(mounted()).toBe(true);
+
+    unmount();
+
+    expect(mounted()).toBe(false);
+  });
+});

src/hooks/useMounted.ts src/useMounted/useMounted.tssrc/hooks/useMounted.ts renamed to src/useMounted/useMounted.ts

@@ -1,9 +1,7 @@
 import { useCallback, useLayoutEffect, useRef } from 'react';
 
-export type UseMountedResult = () => boolean;
-
 /** React.js hook that provides a function to check if component is mounted. */
-function useMounted(): UseMountedResult {
+function useMounted(): () => boolean {
   const mountedRef = useRef(true);
 
   useLayoutEffect(