Merge pull request #130 from str0yka/test-usePageLeave

[test]: usePageLeave

src/hooks/usePageLeave/usePageLeave.test.ts

@@ -0,0 +1,35 @@
+import { act, fireEvent, renderHook } from '@testing-library/react';
+
+import { usePageLeave } from './usePageLeave';
+
+it('Should callback after the mouse has moved off the page', () => {
+  const callback = vi.fn();
+  renderHook(() => usePageLeave(callback));
+
+  act(() => fireEvent.mouseLeave(document));
+
+  expect(callback).toBeCalledTimes(1);
+});
+
+it("Shouldn't callback after the mouse has moved to the page", () => {
+  const callback = vi.fn();
+  renderHook(() => usePageLeave(callback));
+
+  act(() => fireEvent.mouseEnter(document));
+
+  expect(callback).not.toBeCalled();
+});
+
+it('Should be called more than once when the mouse goes off the page repeatedly', () => {
+  const callback = vi.fn();
+  renderHook(() => usePageLeave(callback));
+
+  act(() => fireEvent.mouseLeave(document));
+
+  expect(callback).toBeCalledTimes(1);
+
+  act(() => fireEvent.mouseEnter(document));
+  act(() => fireEvent.mouseLeave(document));
+
+  expect(callback).toBeCalledTimes(2);
+});