React Testing Library Verified Review

// Or use waitFor for custom conditions await waitFor(() => { expect(screen.getByRole('alert')).toHaveTextContent('Success') })

// Wait for it to disappear await waitFor(() => { expect(screen.queryByText(/loading.../i)).not.toBeInTheDocument(); }); });

test('loads user data', async () => { render(<UserProfile userId={123} />) react testing library

"The more your tests resemble the way your software is used, the more confidence they can give you."

test('removes loading spinner', async () => { render(<DataComponent />); // Or use waitFor for custom conditions await

// Navigate to profile await userEvent.click(screen.getByRole('link', { name: /profile/i })) expect(screen.getByText(/user profile/i)).toBeInTheDocument()

If a user can't see it, you shouldn't test it directly. test('loads user data'

test('loads data', async () => { render(<DataComponent />);

expect(input).toHaveValue('Hello World'); });

// 2. Query for elements const buttonElement = screen.getByText(/click me/i);