feat(tenants): UI fuer Mandanten-Verwaltung — Modul 4/16 des UI-Backlogs
Backend existierte vollstaendig (list, create, list users, assign user; tenants:read/write), Frontend hatte 0% Abdeckung. - api/tenants.ts: TanStack-Hooks (useTenants, useTenantUsers mit enabled-Gating, create, assignUser mit Cache-Invalidierung) - pages/Tenants.tsx: Tenant-Karten (Name, Slug, Standard-Badge), expandierbare User-Liste pro Tenant (Rolle, E-Mail), Create-Dialog (Name + Slug mit Auto-Normalisierung), Assign-User-Dialog mit User-Picker (bereits zugewiesene gefiltert) — Create/Users/Assign hinter tenants:write gegated - Platzierung: Settings-Subpage /settings/tenants (statisch, Core-Route) + Settings-Nav-Item - i18n tenants.* de/en Verifikation: Vitest 8/8 (Rendering, Standard-Badge, Expand-User-Liste, Create-Flow, Assign-Flow, Permission-Gating, Empty/Error) · tsc exit 0 · production build exit 0.
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/**
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* Tenants page tests — multi-tenant management (module 4/16).
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*
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* Covers: rendering, tenant cards with default badge, expandable user list,
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* create dialog, assign user flow, permission gating (tenants:write),
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* empty and error states.
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*/
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import React from 'react';
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import { describe, it, expect, vi, beforeEach } from 'vitest';
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import { render, screen, fireEvent, waitFor } from '@testing-library/react';
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import { MemoryRouter } from 'react-router-dom';
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import { TenantsPage } from '@/pages/Tenants';
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import type { Tenant } from '@/api/tenants';
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import type { UserResponse } from '@/api/users';
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const createMut = vi.fn().mockImplementation((_payload, opts) => {
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opts?.onSuccess?.({});
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return Promise.resolve({});
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});
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const assignMut = vi.fn().mockImplementation((_payload, opts) => {
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opts?.onSuccess?.({ message: 'ok' });
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return Promise.resolve({});
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});
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const makeTenant = (overrides: Partial<Tenant> = {}): Tenant => ({
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id: 'tn-1',
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name: 'Default Org',
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slug: 'default-org',
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is_default: true,
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...overrides,
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});
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const TENANT_USER = {
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id: '11111111-1111-1111-1111-111111111111',
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email: 'admin@example.com',
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name: 'Administrator',
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role: 'admin',
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is_active: true,
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};
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const ALL_USER: UserResponse = {
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id: '22222222-2222-2222-2222-222222222222',
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email: 'other@example.com',
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name: 'Other User',
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first_name: null,
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last_name: null,
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avatar_url: null,
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role: 'viewer',
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role_id: null,
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is_active: true,
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tenant_id: 'tn-1',
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};
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let mockTenants: Tenant[] = [];
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let mockTenantUsers: typeof TENANT_USER[] = [];
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let mockCanWrite = true;
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let mockError = false;
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vi.mock('@/api/tenants', () => ({
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useTenants: () => ({
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data: { items: mockTenants },
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isLoading: false,
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isError: mockError,
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isFetching: false,
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refetch: vi.fn(),
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}),
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useTenantUsers: (tenantId: string | null) => ({
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data: tenantId ? { items: mockTenantUsers } : undefined,
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isLoading: false,
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}),
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useCreateTenant: () => ({
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mutate: createMut,
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isPending: false,
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}),
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useAssignUserToTenant: () => ({
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mutate: assignMut,
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isPending: false,
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}),
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}));
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vi.mock('@/api/users', () => ({
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useUsers: () => ({
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data: { items: [ALL_USER], total: 1, page: 1, page_size: 100 },
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isLoading: false,
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}),
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}));
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vi.mock('@/hooks/usePermission', () => ({
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usePermission: () => ({
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hasPermission: (perm: string) => mockCanWrite || perm !== 'tenants:write',
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}),
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}));
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function renderPage() {
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return render(
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<MemoryRouter>
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<TenantsPage />
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</MemoryRouter>,
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);
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}
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beforeEach(() => {
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vi.clearAllMocks();
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mockTenants = [];
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mockTenantUsers = [];
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mockCanWrite = true;
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mockError = false;
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});
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describe('TenantsPage', () => {
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it('renders the page with title', () => {
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renderPage();
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expect(screen.getByTestId('tenants-page')).toBeInTheDocument();
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});
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it('shows empty state when no tenants exist', () => {
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renderPage();
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expect(screen.getByTestId('tenants-empty')).toBeInTheDocument();
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});
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it('shows error state on load failure', () => {
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mockError = true;
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renderPage();
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expect(screen.getByTestId('tenants-error')).toBeInTheDocument();
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});
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it('renders tenant cards with name, slug and default badge', () => {
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mockTenants = [makeTenant()];
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renderPage();
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expect(screen.getByTestId('tenant-card-tn-1')).toBeInTheDocument();
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expect(screen.getByText('Default Org')).toBeInTheDocument();
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expect(screen.getByText('default-org')).toBeInTheDocument();
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// Default badge — 'Standard' appears exactly once (the tenant name
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// 'Default Org' would also match a /default/i regex, so match exactly)
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expect(screen.getByText(/^standard$/i)).toBeInTheDocument();
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});
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it('expands the user list via the toggle', async () => {
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mockTenants = [makeTenant()];
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mockTenantUsers = [TENANT_USER];
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renderPage();
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fireEvent.click(screen.getByTestId('tenant-users-toggle-tn-1'));
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expect(await screen.findByTestId('tenant-users-list-tn-1')).toBeInTheDocument();
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expect(screen.getByTestId(`tenant-user-tn-1-${TENANT_USER.id}`)).toBeInTheDocument();
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expect(screen.getByText('Administrator')).toBeInTheDocument();
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});
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it('creates a tenant via the dialog', async () => {
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renderPage();
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fireEvent.click(screen.getByTestId('tenant-create-open'));
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expect(screen.getByTestId('tenant-create-submit')).toBeInTheDocument();
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const nameInput = screen.getByLabelText(/name/i, { selector: 'input' }) as HTMLInputElement;
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fireEvent.change(nameInput, { target: { value: 'Zweite Firma' } });
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const slugInput = screen.getByLabelText(/slug/i, { selector: 'input' }) as HTMLInputElement;
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fireEvent.change(slugInput, { target: { value: 'zweite-firma' } });
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fireEvent.click(screen.getByTestId('tenant-create-submit'));
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await waitFor(() => {
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expect(createMut).toHaveBeenCalledWith(
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{ name: 'Zweite Firma', slug: 'zweite-firma' },
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expect.anything(),
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);
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});
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});
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it('hides create and toggles without tenants:write', () => {
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mockTenants = [makeTenant()];
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mockCanWrite = false;
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renderPage();
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expect(screen.queryByTestId('tenant-create-open')).not.toBeInTheDocument();
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expect(screen.queryByTestId('tenant-users-toggle-tn-1')).not.toBeInTheDocument();
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});
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it('assigns a user to the expanded tenant', async () => {
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mockTenants = [makeTenant()];
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mockTenantUsers = [TENANT_USER];
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renderPage();
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fireEvent.click(screen.getByTestId('tenant-users-toggle-tn-1'));
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fireEvent.click(await screen.findByTestId('tenant-assign-open'));
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const select = screen.getByRole('combobox');
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fireEvent.change(select, { target: { value: ALL_USER.id } });
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fireEvent.click(screen.getByTestId('tenant-assign-submit'));
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await waitFor(() => {
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expect(assignMut).toHaveBeenCalledWith(
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{ tenantId: 'tn-1', userId: ALL_USER.id },
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expect.anything(),
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);
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});
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});
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});
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