fix(web): Loeschweg der Benutzerverwaltung meldet abgewiesene Server-Antworten
WINDOWS #36, Aufgabe 1/3: handleDelete verschluckte einen 403 bisher komplett (nur res.ok geprueft, Fang-Zweig ohne Wirkung). readApiMessage liest jetzt gezielt das Feld message aus dem Antwortrumpf; der Loeschdialog zeigt den Servertext, eine uebersetzte Ersatzmeldung ohne verwertbaren Rumpf oder bei Verbindungsfehler — und bleibt in allen drei Faellen offen. Neue Texte unter admin.users.errors in de.json/en.json, Umlaut-Waechter gruen. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TPPB4ApQxzSU1rwV2Ffj9J
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import { cleanup, render, screen, waitFor } from '@testing-library/react';
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import userEvent from '@testing-library/user-event';
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import { afterEach, describe, expect, it, vi } from 'vitest';
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// Namespace-aware next-intl mock — same convention as
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// admin/groups/groups-page.test.tsx and admin/users/user-access-modal.test.tsx.
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// {param} placeholders are substituted plainly.
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const messages: Record<string, Record<string, unknown>> = {
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'admin.users': {
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title: 'Benutzerverwaltung',
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create: 'Benutzer erstellen',
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edit: 'Benutzer bearbeiten',
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delete: 'Benutzer löschen',
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deleteConfirm: 'Möchten Sie diesen Benutzer wirklich löschen?',
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name: 'Name',
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username: 'Benutzername',
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email: 'E-Mail',
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displayName: 'Anzeigename',
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role: 'Rolle',
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status: 'Status',
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actions: 'Aktionen',
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password: 'Passwort',
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noUsers: 'Keine Benutzer gefunden',
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grants: {
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detailsButton: 'Details',
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},
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errors: {
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serverRejected: 'Der Server hat die Aktion abgelehnt: {detail}',
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generic: 'Die Aktion konnte nicht durchgeführt werden. Bitte erneut versuchen.',
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network: 'Der Server ist nicht erreichbar. Bitte erneut versuchen.',
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loadFailed: 'Die Benutzerliste konnte nicht geladen werden. Bitte laden Sie die Seite neu.',
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},
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},
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header: {
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role: {
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SUPER_ADMIN: 'Super-Admin',
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ADMIN: 'Admin',
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USER: 'Benutzer',
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},
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},
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common: {
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loading: 'Laden...',
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cancel: 'Abbrechen',
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save: 'Speichern',
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delete: 'Löschen',
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edit: 'Bearbeiten',
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accessDenied: 'Zugriff verweigert',
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active: 'Aktiv',
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inactive: 'Inaktiv',
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},
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};
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function resolve(ns: string, key: string, params?: Record<string, unknown>): string {
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const parts = key.split('.');
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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let val: any = messages[ns] ?? {};
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for (const part of parts) {
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val = val?.[part];
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}
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if (typeof val !== 'string') return key;
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if (params) {
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for (const [k, v] of Object.entries(params)) {
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val = val.replace(`{${k}}`, String(v));
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}
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}
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return val;
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}
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vi.mock('next-intl', () => ({
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useTranslations: (ns: string) => (key: string, params?: Record<string, unknown>) =>
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resolve(ns, key, params),
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}));
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const mockAuthStore = vi.fn();
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vi.mock('@/lib/stores/auth-store', () => ({
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useAuthStore: (selector: (state: unknown) => unknown) => mockAuthStore(selector),
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}));
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// UserAccessModal is not exercised by these tests — stub it out so a click
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// on "Details" doesn't need its own fetch fixtures.
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vi.mock('./components/UserAccessModal', () => ({
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UserAccessModal: () => null,
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}));
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import AdminUsersPage from './page';
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interface User {
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id: string;
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username: string;
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email: string | null;
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displayName: string | null;
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role: 'SUPER_ADMIN' | 'ADMIN' | 'USER';
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isActive: boolean;
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tenantId: string;
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createdAt: string;
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}
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const mockUsers: User[] = [
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{
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id: 'u1',
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username: 'admin.eins',
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email: 'admin.eins@ctl.de',
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displayName: 'Admin Eins',
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role: 'ADMIN',
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isActive: true,
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tenantId: 't1',
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createdAt: '2026-01-01T00:00:00.000Z',
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},
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{
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id: 'u2',
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username: 'user.zwei',
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email: 'user.zwei@ctl.de',
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displayName: 'User Zwei',
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role: 'USER',
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isActive: true,
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tenantId: 't1',
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createdAt: '2026-01-01T00:00:00.000Z',
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},
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];
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function stubAdmin(id = 'u1') {
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mockAuthStore.mockImplementation(
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(selector: (state: { user: { id: string; role: string; tenantId: string } }) => unknown) =>
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selector({ user: { id, role: 'ADMIN', tenantId: 't1' } }),
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);
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}
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afterEach(() => {
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cleanup();
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vi.restoreAllMocks();
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});
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describe('AdminUsersPage — Loeschweg (WINDOWS #36, Aufgabe 1)', () => {
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it('zeigt den Servertext im offenen Loeschdialog bei einer 403-Ablehnung', async () => {
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stubAdmin();
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const fetchMock = vi.fn((url: string, init?: RequestInit) => {
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if (typeof url === 'string' && url.endsWith('/users') && (!init || init.method === undefined)) {
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return Promise.resolve({ ok: true, json: () => Promise.resolve(mockUsers) });
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}
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if (typeof url === 'string' && init?.method === 'DELETE') {
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return Promise.resolve({
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ok: false,
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status: 403,
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json: () =>
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Promise.resolve({ statusCode: 403, message: 'Cannot delete a SUPER_ADMIN user' }),
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});
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}
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return Promise.resolve({ ok: true, json: () => Promise.resolve([]) });
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});
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vi.stubGlobal('fetch', fetchMock);
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render(<AdminUsersPage />);
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await waitFor(() => {
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expect(screen.getByText('user.zwei')).toBeInTheDocument();
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});
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const deleteButtons = screen.getAllByText('Löschen');
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await userEvent.click(deleteButtons[deleteButtons.length - 1]);
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await waitFor(() => {
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expect(screen.getByText('Möchten Sie diesen Benutzer wirklich löschen?')).toBeInTheDocument();
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});
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const confirmButtons = screen.getAllByText('Löschen');
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await userEvent.click(confirmButtons[confirmButtons.length - 1]);
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await waitFor(() => {
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expect(
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screen.getByText('Der Server hat die Aktion abgelehnt: Cannot delete a SUPER_ADMIN user'),
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).toBeInTheDocument();
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});
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// Dialog bleibt offen.
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expect(screen.getByText('Möchten Sie diesen Benutzer wirklich löschen?')).toBeInTheDocument();
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});
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it('zeigt die Ersatzmeldung, wenn die Antwort keinen verwertbaren Rumpf traegt', async () => {
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stubAdmin();
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const fetchMock = vi.fn((url: string, init?: RequestInit) => {
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if (typeof url === 'string' && url.endsWith('/users') && (!init || init.method === undefined)) {
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return Promise.resolve({ ok: true, json: () => Promise.resolve(mockUsers) });
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}
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if (typeof url === 'string' && init?.method === 'DELETE') {
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return Promise.resolve({
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ok: false,
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status: 500,
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json: () => Promise.reject(new Error('not json')),
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});
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}
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return Promise.resolve({ ok: true, json: () => Promise.resolve([]) });
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});
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vi.stubGlobal('fetch', fetchMock);
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render(<AdminUsersPage />);
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await waitFor(() => {
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expect(screen.getByText('user.zwei')).toBeInTheDocument();
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});
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const deleteButtons = screen.getAllByText('Löschen');
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await userEvent.click(deleteButtons[deleteButtons.length - 1]);
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const confirmButtons = screen.getAllByText('Löschen');
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await userEvent.click(confirmButtons[confirmButtons.length - 1]);
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await waitFor(() => {
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expect(
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screen.getByText('Die Aktion konnte nicht durchgeführt werden. Bitte erneut versuchen.'),
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).toBeInTheDocument();
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});
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expect(screen.queryByText(/Der Server hat die Aktion abgelehnt/)).not.toBeInTheDocument();
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});
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it('zeigt die Netzmeldung, wenn die Verbindung beim Loeschen scheitert', async () => {
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stubAdmin();
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const fetchMock = vi.fn((url: string, init?: RequestInit) => {
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if (typeof url === 'string' && url.endsWith('/users') && (!init || init.method === undefined)) {
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return Promise.resolve({ ok: true, json: () => Promise.resolve(mockUsers) });
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}
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if (typeof url === 'string' && init?.method === 'DELETE') {
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return Promise.reject(new Error('network down'));
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}
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return Promise.resolve({ ok: true, json: () => Promise.resolve([]) });
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});
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vi.stubGlobal('fetch', fetchMock);
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render(<AdminUsersPage />);
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await waitFor(() => {
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expect(screen.getByText('user.zwei')).toBeInTheDocument();
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});
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const deleteButtons = screen.getAllByText('Löschen');
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await userEvent.click(deleteButtons[deleteButtons.length - 1]);
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const confirmButtons = screen.getAllByText('Löschen');
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await userEvent.click(confirmButtons[confirmButtons.length - 1]);
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await waitFor(() => {
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expect(
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screen.getByText('Der Server ist nicht erreichbar. Bitte erneut versuchen.'),
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).toBeInTheDocument();
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});
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});
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it('schliesst den Dialog und laedt die Liste neu, wenn das Loeschen gelingt (Erfolgsfall unveraendert)', async () => {
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stubAdmin();
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const fetchMock = vi.fn((url: string, init?: RequestInit) => {
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if (typeof url === 'string' && url.endsWith('/users') && (!init || init.method === undefined)) {
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return Promise.resolve({ ok: true, json: () => Promise.resolve(mockUsers) });
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}
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if (typeof url === 'string' && init?.method === 'DELETE') {
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return Promise.resolve({ ok: true, json: () => Promise.resolve({}) });
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}
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return Promise.resolve({ ok: true, json: () => Promise.resolve([]) });
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});
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vi.stubGlobal('fetch', fetchMock);
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render(<AdminUsersPage />);
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await waitFor(() => {
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expect(screen.getByText('user.zwei')).toBeInTheDocument();
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});
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const deleteButtons = screen.getAllByText('Löschen');
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await userEvent.click(deleteButtons[deleteButtons.length - 1]);
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await waitFor(() => {
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expect(screen.getByText('Möchten Sie diesen Benutzer wirklich löschen?')).toBeInTheDocument();
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});
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const confirmButtons = screen.getAllByText('Löschen');
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await userEvent.click(confirmButtons[confirmButtons.length - 1]);
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await waitFor(() => {
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expect(
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screen.queryByText('Möchten Sie diesen Benutzer wirklich löschen?'),
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).not.toBeInTheDocument();
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});
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expect(screen.queryByRole('alert')).not.toBeInTheDocument();
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const usersCalls = fetchMock.mock.calls.filter(
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(call) =>
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typeof call[0] === 'string' &&
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call[0].endsWith('/users') &&
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(!call[1] || (call[1] as RequestInit).method === undefined),
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);
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// Erst-Laden + Neu-Laden nach erfolgreichem Loeschen.
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expect(usersCalls.length).toBeGreaterThanOrEqual(2);
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});
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});
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