Tauri-demo: Test remove listener in disconnectedCallback

app.spec.ts

it('should remove `user-status-change` listener to the old authComponent', () => {
    const addEventListenerSpy = vi.spyOn(HTMLElement.prototype, 'addEventListener');
    app.connectedCallback();
    const oldAuthComponent = authComponent;  
    const removeEventListenerSpy = vi.spyOn(oldAuthComponent, 'removeEventListener');   
    app.disconnectedCallback();
    app.connectedCallback();
    expect(addEventListenerSpy).toHaveBeenCalledWith('user-status-change', expect.any(Function));
    expect(removeEventListenerSpy).toHaveBeenCalledWith('user-status-change', expect.any(Function));
    expect(removeEventListenerSpy.mock.calls[0][1]).toBe(addEventListenerSpy.mock.calls[0][1]);
    addEventListenerSpy.mockRestore();
});