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import { fireEvent, render, screen, waitFor } from '@testing-library/react';
import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
import App from '../../src/client/App';
describe('App', () => {
const fetchMock = vi.fn();
beforeEach(() => {
fetchMock.mockReset();
vi.stubGlobal('fetch', fetchMock);
});
afterEach(() => {
vi.unstubAllGlobals();
});
it('shows qr code after successful start call', async () => {
fetchMock.mockResolvedValueOnce({
ok: true,
json: async () => ({
sessionId: 'session-1',
qrCodeDataUrl: 'data:image/png;base64,qr',
}),
});
render(<App />);
fireEvent.click(
screen.getByRole('button', { name: /sign in with digi-id/i })
);
await waitFor(() => {
expect(
screen.getByRole('heading', { name: /scan the qr code/i })
).toBeInTheDocument();
});
expect(screen.getByAltText('Digi-ID QR Code')).toBeInTheDocument();
});
it('transitions to success after polling confirms authentication', async () => {
fetchMock
.mockResolvedValueOnce({
ok: true,
json: async () => ({
sessionId: 'session-2',
qrCodeDataUrl: 'data:image/png;base64,qr',
}),
})
.mockResolvedValueOnce({
ok: true,
json: async () => ({
status: 'success',
address: 'D123456789',
}),
});
render(<App />);
fireEvent.click(
screen.getByRole('button', { name: /sign in with digi-id/i })
);
await waitFor(() => {
expect(
screen.getByText(/waiting for authentication/i)
).toBeInTheDocument();
});
await waitFor(
() => {
expect(
screen.getByText(/authentication successful/i)
).toBeInTheDocument();
},
{ timeout: 3000 }
);
expect(screen.getByText('D123456789')).toBeInTheDocument();
});
it('shows start errors in the initial state', async () => {
fetchMock.mockResolvedValueOnce({
ok: false,
status: 500,
json: async () => ({ message: 'Backend unavailable' }),
});
render(<App />);
fireEvent.click(
screen.getByRole('button', { name: /sign in with digi-id/i })
);
await waitFor(() => {
expect(
screen.getByText(/failed to initiate digi-id: backend unavailable/i)
).toBeInTheDocument();
});
});
it('can cancel waiting flow and return to initial view', async () => {
fetchMock.mockResolvedValueOnce({
ok: true,
json: async () => ({
sessionId: 'session-3',
qrCodeDataUrl: 'data:image/png;base64,qr',
}),
});
render(<App />);
fireEvent.click(
screen.getByRole('button', { name: /sign in with digi-id/i })
);
await waitFor(() => {
expect(
screen.getByRole('button', { name: /cancel/i })
).toBeInTheDocument();
});
fireEvent.click(screen.getByRole('button', { name: /cancel/i }));
expect(
screen.getByRole('button', { name: /sign in with digi-id/i })
).toBeInTheDocument();
});
});
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