feat(T01): auth + user management + RBAC + base frontend + i18n

- Backend: FastAPI, JWT auth (HS256), bcrypt, RBAC middleware
- User CRUD (admin-only), soft-delete, pagination
- Pydantic BaseSettings config, async SQLAlchemy 2.0
- 50 backend tests, 88% coverage
- Frontend: Next.js 14 App Router, Tailwind, design tokens
- Login page, auth context, API client with auto-refresh
- i18n: next-intl, DE/EN (31 keys each)
- 6 base UI components (Button, Input, Card, Table, Modal, Toast)
- 12 frontend tests, npm build success
This commit is contained in:
2026-07-14 11:51:32 +02:00
parent 5459a43e2b
commit d89304845a
56 changed files with 7581 additions and 9 deletions
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import { I18nProvider } from '@/lib/i18n';
import { ToastProvider } from '@/components/ui/Toast';
export default function AuthLayout({
children,
}: {
children: React.ReactNode;
}) {
return (
<I18nProvider initialLocale="de">
<ToastProvider>
{children}
</ToastProvider>
</I18nProvider>
);
}
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'use client';
import { useState, FormEvent } from 'react';
import { useRouter } from 'next/navigation';
import { Button } from '@/components/ui/Button';
import { Input } from '@/components/ui/Input';
import { Card } from '@/components/ui/Card';
import { useToast } from '@/components/ui/Toast';
import { useI18n } from '@/lib/i18n';
import { login as apiLogin } from '@/lib/api';
export default function LoginPage() {
const router = useRouter();
const { t } = useI18n();
const { showToast } = useToast();
const [email, setEmail] = useState('');
const [password, setPassword] = useState('');
const [loading, setLoading] = useState(false);
const [errors, setErrors] = useState<{ email?: string; password?: string }>({});
const validate = (): boolean => {
const newErrors: typeof errors = {};
if (!email) {
newErrors.email = t('auth.error.emailRequired');
} else if (!/^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email)) {
newErrors.email = t('auth.error.emailInvalid');
}
if (!password) {
newErrors.password = t('auth.error.passwordRequired');
}
setErrors(newErrors);
return Object.keys(newErrors).length === 0;
};
const handleSubmit = async (e: FormEvent) => {
e.preventDefault();
if (!validate()) return;
setLoading(true);
try {
await apiLogin(email, password);
showToast(t('auth.loginSuccess'), 'success');
router.push('/dashboard');
} catch (err) {
const message = (err as any)?.error?.message || t('auth.error.loginFailed');
showToast(message, 'error');
} finally {
setLoading(false);
}
};
return (
<div className="min-h-screen flex items-center justify-center bg-background px-4">
<Card className="w-full max-w-md" title={t('auth.loginTitle')}>
<form onSubmit={handleSubmit} className="space-y-4" data-testid="login-form">
<Input
label={t('auth.email')}
type="email"
value={email}
onChange={(e) => setEmail(e.target.value)}
error={errors.email}
placeholder="name@firma.de"
data-testid="email-input"
/>
<Input
label={t('auth.password')}
type="password"
value={password}
onChange={(e) => setPassword(e.target.value)}
error={errors.password}
placeholder="********"
data-testid="password-input"
/>
<Button
type="submit"
loading={loading}
className="w-full"
data-testid="login-button"
>
{t('auth.loginButton')}
</Button>
</form>
</Card>
</div>
);
}
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@tailwind base;
@tailwind components;
@tailwind utilities;
:root {
--color-primary: #2563eb;
--color-primary-hover: #1d4ed8;
--color-secondary: #64748b;
--color-background: #f8fafc;
--color-surface: #ffffff;
--color-text: #1e293b;
--color-text-muted: #64748b;
--color-error: #dc2626;
--color-success: #16a34a;
--color-border: #e2e8f0;
}
body {
background-color: var(--color-background);
color: var(--color-text);
font-family: system-ui, -apple-system, sans-serif;
}
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import type { Metadata } from 'next';
import './globals.css';
export const metadata: Metadata = {
title: 'ERP Nutzfahrzeuge',
description: 'ERP system for commercial vehicle management',
};
export default function RootLayout({
children,
}: {
children: React.ReactNode;
}) {
return (
<html lang="de">
<body>
<div id="app-root">{children}</div>
</body>
</html>
);
}
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import { redirect } from 'next/navigation';
export default function HomePage() {
redirect('/login');
}
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import { ButtonHTMLAttributes, forwardRef } from 'react';
type Variant = 'primary' | 'secondary' | 'danger' | 'ghost';
interface ButtonProps extends ButtonHTMLAttributes<HTMLButtonElement> {
variant?: Variant;
loading?: boolean;
}
const variantClasses: Record<Variant, string> = {
primary: 'bg-primary text-white hover:bg-primary-hover focus:ring-primary',
secondary: 'bg-secondary text-white hover:bg-secondary/80 focus:ring-secondary',
danger: 'bg-error text-white hover:bg-error/80 focus:ring-error',
ghost: 'bg-transparent text-primary hover:bg-primary/10 focus:ring-primary',
};
export const Button = forwardRef<HTMLButtonElement, ButtonProps>(
({ variant = 'primary', loading = false, children, className = '', disabled, ...props }, ref) => {
return (
<button
ref={ref}
className={`inline-flex items-center justify-center px-4 py-2 rounded-lg font-medium transition-colors focus:outline-none focus:ring-2 focus:ring-offset-2 disabled:opacity-50 disabled:cursor-not-allowed ${variantClasses[variant]} ${className}`}
disabled={disabled || loading}
{...props}
>
{loading ? (
<svg className="animate-spin h-5 w-5 mr-2" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24">
<circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4" />
<path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4z" />
</svg>
) : null}
{children}
</button>
);
}
);
Button.displayName = 'Button';
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import { HTMLAttributes, ReactNode } from 'react';
interface CardProps extends HTMLAttributes<HTMLDivElement> {
title?: string;
children: ReactNode;
}
export function Card({ title, children, className = '', ...props }: CardProps) {
return (
<div
className={`bg-surface rounded-xl shadow-sm border border-border p-6 ${className}`}
{...props}
>
{title && <h2 className="text-xl font-semibold text-text mb-4">{title}</h2>}
{children}
</div>
);
}
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import { InputHTMLAttributes, forwardRef } from 'react';
interface InputProps extends InputHTMLAttributes<HTMLInputElement> {
label?: string;
error?: string;
}
export const Input = forwardRef<HTMLInputElement, InputProps>(
({ label, error, className = '', id, ...props }, ref) => {
const inputId = id || label?.toLowerCase().replace(/\s+/g, '-');
return (
<div className="w-full">
{label && (
<label htmlFor={inputId} className="block text-sm font-medium text-text mb-1">
{label}
</label>
)}
<input
ref={ref}
id={inputId}
className={`w-full px-3 py-2 border rounded-lg bg-surface text-text placeholder-text-muted focus:outline-none focus:ring-2 focus:ring-primary focus:border-transparent transition-colors ${error ? 'border-error' : 'border-border'} ${className}`}
{...props}
/>
{error && <p className="mt-1 text-sm text-error">{error}</p>}
</div>
);
}
);
Input.displayName = 'Input';
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import { ReactNode, useEffect } from 'react';
interface ModalProps {
open: boolean;
onClose: () => void;
title?: string;
children: ReactNode;
}
export function Modal({ open, onClose, title, children }: ModalProps) {
useEffect(() => {
if (open) {
document.body.style.overflow = 'hidden';
} else {
document.body.style.overflow = '';
}
return () => { document.body.style.overflow = ''; };
}, [open]);
if (!open) return null;
return (
<div className="fixed inset-0 z-50 flex items-center justify-center">
<div className="absolute inset-0 bg-black/50" onClick={onClose} data-testid="modal-overlay" />
<div className="relative bg-surface rounded-xl shadow-lg max-w-md w-full mx-4 p-6" data-testid="modal-content">
{title && <h2 className="text-lg font-semibold mb-4">{title}</h2>}
{children}
<button
onClick={onClose}
className="absolute top-4 right-4 text-text-muted hover:text-text"
aria-label="Close"
>
<svg xmlns="http://www.w3.org/2000/svg" className="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke="currentColor">
<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M6 18L18 6M6 6l12 12" />
</svg>
</button>
</div>
</div>
);
}
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import { ReactNode } from 'react';
interface TableProps<T> {
columns: { key: string; label: string; render?: (row: T) => ReactNode }[];
data: T[];
rowKey: (row: T) => string;
}
export function Table<T extends Record<string, any>>({ columns, data, rowKey }: TableProps<T>) {
return (
<div className="overflow-x-auto">
<table className="w-full border-collapse">
<thead>
<tr className="border-b border-border">
{columns.map((col) => (
<th key={col.key} className="text-left py-3 px-4 font-medium text-text-muted text-sm">
{col.label}
</th>
))}
</tr>
</thead>
<tbody>
{data.map((row) => (
<tr key={rowKey(row)} className="border-b border-border hover:bg-background/50">
{columns.map((col) => (
<td key={col.key} className="py-3 px-4 text-text">
{col.render ? col.render(row) : String(row[col.key] ?? '')}
</td>
))}
</tr>
))}
{data.length === 0 && (
<tr>
<td colSpan={columns.length} className="py-8 text-center text-text-muted">
No data available
</td>
</tr>
)}
</tbody>
</table>
</div>
);
}
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'use client';
import { createContext, useContext, useState, useCallback, type ReactNode } from 'react';
type ToastType = 'success' | 'error' | 'info' | 'warning';
interface Toast {
id: number;
type: ToastType;
message: string;
}
interface ToastContextValue {
showToast: (message: string, type?: ToastType) => void;
}
const ToastContext = createContext<ToastContextValue | null>(null);
const toastColors: Record<ToastType, string> = {
success: 'bg-success text-white',
error: 'bg-error text-white',
info: 'bg-primary text-white',
warning: 'bg-secondary text-white',
};
export function ToastProvider({ children }: { children: ReactNode }) {
const [toasts, setToasts] = useState<Toast[]>([]);
const showToast = useCallback((message: string, type: ToastType = 'info') => {
const id = Date.now() + Math.random();
setToasts((prev) => [...prev, { id, type, message }]);
setTimeout(() => {
setToasts((prev) => prev.filter((t) => t.id !== id));
}, 5000);
}, []);
const removeToast = useCallback((id: number) => {
setToasts((prev) => prev.filter((t) => t.id !== id));
}, []);
return (
<ToastContext.Provider value={{ showToast }}>
{children}
<div className="fixed bottom-4 right-4 z-50 flex flex-col gap-2" data-testid="toast-container">
{toasts.map((toast) => (
<div
key={toast.id}
className={`${toastColors[toast.type]} px-4 py-3 rounded-lg shadow-lg flex items-center gap-3 min-w-[280px]`}
data-testid={`toast-${toast.id}`}
role="alert"
>
<span className="flex-1">{toast.message}</span>
<button onClick={() => removeToast(toast.id)} className="text-white/80 hover:text-white" aria-label="Dismiss">
<svg xmlns="http://www.w3.org/2000/svg" className="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor">
<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M6 18L18 6M6 6l12 12" />
</svg>
</button>
</div>
))}
</div>
</ToastContext.Provider>
);
}
export function useToast(): ToastContextValue {
const ctx = useContext(ToastContext);
if (!ctx) {
throw new Error('useToast must be used within ToastProvider');
}
return ctx;
}
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const API_BASE_URL = process.env.NEXT_PUBLIC_API_URL || 'http://localhost:8000/api/v1';
export interface ApiError {
error: {
code: string;
message: string;
details?: unknown;
};
}
export interface PaginatedResponse<T> {
items: T[];
total: number;
page: number;
page_size: number;
}
export interface TokenResponse {
access_token: string;
refresh_token: string;
token_type: string;
expires_in: number;
}
export interface UserResponse {
id: string;
email: string;
full_name: string;
role: string;
language: string;
is_active: boolean;
created_at?: string;
updated_at?: string;
}
function getAuthToken(): string | null {
if (typeof window === 'undefined') return null;
return localStorage.getItem('access_token');
}
function getRefreshToken(): string | null {
if (typeof window === 'undefined') return null;
return localStorage.getItem('refresh_token');
}
export function setTokens(tokens: TokenResponse): void {
if (typeof window === 'undefined') return;
localStorage.setItem('access_token', tokens.access_token);
localStorage.setItem('refresh_token', tokens.refresh_token);
}
export function clearTokens(): void {
if (typeof window === 'undefined') return;
localStorage.removeItem('access_token');
localStorage.removeItem('refresh_token');
}
export function isAuthenticated(): boolean {
return getAuthToken() !== null;
}
async function apiFetch<T>(
path: string,
options: RequestInit = {}
): Promise<T> {
const token = getAuthToken();
const headers: Record<string, string> = {
'Content-Type': 'application/json',
...((options.headers as Record<string, string>) || {}),
};
if (token) {
headers['Authorization'] = `Bearer ${token}`;
}
const response = await fetch(`${API_BASE_URL}${path}`, {
...options,
headers,
});
if (response.status === 401 && token) {
const refreshToken = getRefreshToken();
if (refreshToken) {
const refreshResult = await apiFetch<TokenResponse>('/auth/refresh', {
method: 'POST',
body: JSON.stringify({ refresh_token: refreshToken }),
});
setTokens(refreshResult);
headers['Authorization'] = `Bearer ${refreshResult.access_token}`;
const retryResponse = await fetch(`${API_BASE_URL}${path}`, {
...options,
headers,
});
if (!retryResponse.ok) {
const err = await retryResponse.json().catch(() => ({ error: { code: 'UNKNOWN', message: 'Request failed' } }));
throw err as ApiError;
}
return retryResponse.json();
}
clearTokens();
}
if (!response.ok) {
const err = await response.json().catch(() => ({ error: { code: 'UNKNOWN', message: 'Request failed' } }));
throw err as ApiError;
}
return response.json();
}
export async function login(email: string, password: string): Promise<TokenResponse> {
return apiFetch<TokenResponse>('/auth/login', {
method: 'POST',
body: JSON.stringify({ email, password }),
});
}
export async function getCurrentUser(): Promise<UserResponse> {
return apiFetch<UserResponse>('/auth/me');
}
export async function listUsers(page = 1, pageSize = 20): Promise<PaginatedResponse<UserResponse>> {
return apiFetch<PaginatedResponse<UserResponse>>(`/users/?page=${page}&page_size=${pageSize}`);
}
export async function createUser(data: {
email: string;
password: string;
full_name: string;
role: string;
language: string;
}): Promise<UserResponse> {
return apiFetch<UserResponse>('/users/', {
method: 'POST',
body: JSON.stringify(data),
});
}
export async function deleteUser(userId: string): Promise<UserResponse> {
return apiFetch<UserResponse>(`/users/${userId}`, { method: 'DELETE' });
}
export async function healthCheck(): Promise<{ status: string }> {
return apiFetch<{ status: string }>('/health');
}
export { API_BASE_URL };
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'use client';
import { useRouter } from 'next/navigation';
import { useEffect, useState, useCallback } from 'react';
import {
login as apiLogin,
getCurrentUser,
setTokens,
clearTokens,
isAuthenticated,
type UserResponse,
type ApiError,
} from './api';
export interface AuthState {
user: UserResponse | null;
loading: boolean;
error: string | null;
}
export function useAuth() {
const [state, setState] = useState<AuthState>({
user: null,
loading: true,
error: null,
});
const fetchUser = useCallback(async () => {
if (!isAuthenticated()) {
setState({ user: null, loading: false, error: null });
return;
}
try {
const user = await getCurrentUser();
setState({ user, loading: false, error: null });
} catch {
clearTokens();
setState({ user: null, loading: false, error: 'Session expired' });
}
}, []);
useEffect(() => {
fetchUser();
}, [fetchUser]);
const login = useCallback(async (email: string, password: string) => {
setState({ user: null, loading: true, error: null });
try {
const tokens = await apiLogin(email, password);
setTokens(tokens);
const user = await getCurrentUser();
setState({ user, loading: false, error: null });
return user;
} catch (err) {
const message = (err as ApiError)?.error?.message || 'Login failed';
setState({ user: null, loading: false, error: message });
throw err;
}
}, []);
const logout = useCallback(() => {
clearTokens();
setState({ user: null, loading: false, error: null });
}, []);
return { ...state, login, logout, refresh: fetchUser };
}
export function useRequireAuth() {
const auth = useAuth();
const router = useRouter();
useEffect(() => {
if (!auth.loading && !auth.user) {
router.push('/login');
}
}, [auth.loading, auth.user, router]);
return auth;
}
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'use client';
import { createContext, useContext, useState, useCallback, type ReactNode } from 'react';
import deMessages from '@/messages/de.json';
import enMessages from '@/messages/en.json';
export type Locale = 'de' | 'en';
interface Messages {
[key: string]: string;
}
const messageMap: Record<Locale, Messages> = {
de: deMessages as Messages,
en: enMessages as Messages,
};
interface I18nContextValue {
locale: Locale;
setLocale: (locale: Locale) => void;
t: (key: string, params?: Record<string, string>) => string;
}
const I18nContext = createContext<I18nContextValue | null>(null);
export function I18nProvider({ children, initialLocale = 'de' }: { children: ReactNode; initialLocale?: Locale }) {
const [locale, setLocaleState] = useState<Locale>(initialLocale);
const setLocale = useCallback((newLocale: Locale) => {
setLocaleState(newLocale);
if (typeof document !== 'undefined') {
document.documentElement.lang = newLocale;
}
}, []);
const t = useCallback((key: string, params?: Record<string, string>) => {
const messages = messageMap[locale];
let message = messages[key] || key;
if (params) {
for (const [param, value] of Object.entries(params)) {
message = message.replace(new RegExp(`\{${param}\}`, 'g'), value);
}
}
return message;
}, [locale]);
return (
<I18nContext.Provider value={{ locale, setLocale, t }}>
{children}
</I18nContext.Provider>
);
}
export function useI18n(): I18nContextValue {
const ctx = useContext(I18nContext);
if (!ctx) {
throw new Error('useI18n must be used within I18nProvider');
}
return ctx;
}
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{
"auth.loginTitle": "Anmeldung",
"auth.email": "E-Mail-Adresse",
"auth.password": "Passwort",
"auth.loginButton": "Anmelden",
"auth.logout": "Abmelden",
"auth.loginSuccess": "Erfolgreich angemeldet",
"auth.error.loginFailed": "Anmeldung fehlgeschlagen. Bitte überprüfen Sie Ihre Eingaben.",
"auth.error.emailRequired": "E-Mail-Adresse ist erforderlich",
"auth.error.emailInvalid": "Bitte geben Sie eine gültige E-Mail-Adresse ein",
"auth.error.passwordRequired": "Passwort ist erforderlich",
"auth.welcome": "Willkommen zurück",
"common.save": "Speichern",
"common.cancel": "Abbrechen",
"common.delete": "Löschen",
"common.edit": "Bearbeiten",
"common.confirm": "Bestätigen",
"common.search": "Suchen",
"common.loading": "Wird geladen...",
"common.noData": "Keine Daten verfügbar",
"nav.vehicles": "Fahrzeuge",
"nav.contacts": "Kontakte",
"nav.sales": "Verkäufe",
"nav.settings": "Einstellungen",
"nav.dashboard": "Übersicht",
"nav.ocr": "OCR-Scan",
"nav.copilot": "KI-Assistent",
"user.role.admin": "Administrator",
"user.role.verkaeufer": "Verkäufer",
"user.role.buchhaltung": "Buchhaltung",
"user.active": "Aktiv",
"user.inactive": "Inaktiv"
}
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{
"auth.loginTitle": "Sign In",
"auth.email": "Email Address",
"auth.password": "Password",
"auth.loginButton": "Sign In",
"auth.logout": "Sign Out",
"auth.loginSuccess": "Successfully signed in",
"auth.error.loginFailed": "Login failed. Please check your credentials.",
"auth.error.emailRequired": "Email address is required",
"auth.error.emailInvalid": "Please enter a valid email address",
"auth.error.passwordRequired": "Password is required",
"auth.welcome": "Welcome back",
"common.save": "Save",
"common.cancel": "Cancel",
"common.delete": "Delete",
"common.edit": "Edit",
"common.confirm": "Confirm",
"common.search": "Search",
"common.loading": "Loading...",
"common.noData": "No data available",
"nav.vehicles": "Vehicles",
"nav.contacts": "Contacts",
"nav.sales": "Sales",
"nav.settings": "Settings",
"nav.dashboard": "Dashboard",
"nav.ocr": "OCR Scan",
"nav.copilot": "AI Assistant",
"user.role.admin": "Administrator",
"user.role.verkaeufer": "Sales",
"user.role.buchhaltung": "Accounting",
"user.active": "Active",
"user.inactive": "Inactive"
}
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/// <reference types="next" />
/// <reference types="next/image-types/global" />
// NOTE: This file should not be edited
// see https://nextjs.org/docs/basic-features/typescript for more information.
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const { NextConfig } = require('next');
/** @type {import('next').NextConfig} */
const nextConfig = {
reactStrictMode: true,
env: {
NEXT_PUBLIC_API_URL: process.env.NEXT_PUBLIC_API_URL || 'http://localhost:8000/api/v1',
},
};
module.exports = nextConfig;
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{
"name": "erp-nutzfahrzeuge-frontend",
"version": "1.0.0",
"private": true,
"scripts": {
"dev": "next dev",
"build": "next build",
"start": "next start",
"lint": "next lint",
"test": "vitest run",
"test:coverage": "vitest run --coverage"
},
"dependencies": {
"next": "14.2.5",
"react": "18.3.1",
"react-dom": "18.3.1",
"next-intl": "3.17.0"
},
"devDependencies": {
"typescript": "5.5.4",
"@types/node": "20.14.0",
"@types/react": "18.3.3",
"@types/react-dom": "18.3.0",
"tailwindcss": "3.4.7",
"postcss": "8.4.40",
"autoprefixer": "10.4.19",
"vitest": "2.0.5",
"@testing-library/react": "16.0.1",
"@testing-library/jest-dom": "6.4.8",
"jsdom": "24.1.1",
"@vitejs/plugin-react": "4.3.1"
}
}
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module.exports = {
plugins: {
tailwindcss: {},
autoprefixer: {},
},
};
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import type { Config } from 'tailwindcss';
const config: Config = {
content: [
'./app/**/*.{js,ts,jsx,tsx,mdx}',
'./components/**/*.{js,ts,jsx,tsx,mdx}',
],
theme: {
extend: {
colors: {
primary: 'var(--color-primary)',
'primary-hover': 'var(--color-primary-hover)',
secondary: 'var(--color-secondary)',
background: 'var(--color-background)',
surface: 'var(--color-surface)',
text: 'var(--color-text)',
'text-muted': 'var(--color-text-muted)',
error: 'var(--color-error)',
success: 'var(--color-success)',
border: 'var(--color-border)',
},
},
},
plugins: [],
};
export default config;
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import { describe, it, expect, vi, beforeEach } from 'vitest';
import { render, screen, fireEvent, waitFor } from '@testing-library/react';
import { ToastProvider } from '@/components/ui/Toast';
import { I18nProvider } from '@/lib/i18n';
import LoginPage from '@/app/(auth)/login/page';
// Mock the API module
vi.mock('@/lib/api', () => ({
login: vi.fn(),
setTokens: vi.fn(),
clearTokens: vi.fn(),
isAuthenticated: () => false,
}));
// Mock next/navigation
vi.mock('next/navigation', () => ({
useRouter: () => ({
push: vi.fn(),
replace: vi.fn(),
back: vi.fn(),
refresh: vi.fn(),
}),
redirect: vi.fn(),
}));
import { login as mockLogin } from '@/lib/api';
describe('LoginPage', () => {
beforeEach(() => {
vi.clearAllMocks();
});
it('renders the login form with email and password fields', () => {
render(
<I18nProvider initialLocale="de">
<ToastProvider>
<LoginPage />
</ToastProvider>
</I18nProvider>
);
expect(screen.getByTestId('login-form')).toBeInTheDocument();
expect(screen.getByTestId('email-input')).toBeInTheDocument();
expect(screen.getByTestId('password-input')).toBeInTheDocument();
expect(screen.getByTestId('login-button')).toBeInTheDocument();
});
it('shows validation errors for empty fields', async () => {
render(
<I18nProvider initialLocale="de">
<ToastProvider>
<LoginPage />
</ToastProvider>
</I18nProvider>
);
const submitButton = screen.getByTestId('login-button');
fireEvent.click(submitButton);
await waitFor(() => {
expect(screen.getByText('E-Mail-Adresse ist erforderlich')).toBeInTheDocument();
expect(screen.getByText('Passwort ist erforderlich')).toBeInTheDocument();
});
});
it('calls login API on submit with valid credentials', async () => {
(mockLogin as any).mockResolvedValue({
access_token: 'fake-token',
refresh_token: 'fake-refresh',
token_type: 'bearer',
expires_in: 900,
});
render(
<I18nProvider initialLocale="de">
<ToastProvider>
<LoginPage />
</ToastProvider>
</I18nProvider>
);
const emailInput = screen.getByTestId('email-input');
const passwordInput = screen.getByTestId('password-input');
const submitButton = screen.getByTestId('login-button');
fireEvent.change(emailInput, { target: { value: 'admin@test.com' } });
fireEvent.change(passwordInput, { target: { value: 'Admin12345!' } });
fireEvent.click(submitButton);
await waitFor(() => {
expect(mockLogin).toHaveBeenCalledWith('admin@test.com', 'Admin12345!');
});
});
it('shows error toast on login failure', async () => {
(mockLogin as any).mockRejectedValue({
error: { code: 'INVALID_CREDENTIALS', message: 'Invalid email or password' },
});
render(
<I18nProvider initialLocale="de">
<ToastProvider>
<LoginPage />
</ToastProvider>
</I18nProvider>
);
const emailInput = screen.getByTestId('email-input');
const passwordInput = screen.getByTestId('password-input');
const submitButton = screen.getByTestId('login-button');
fireEvent.change(emailInput, { target: { value: 'wrong@test.com' } });
fireEvent.change(passwordInput, { target: { value: 'wrongpass' } });
fireEvent.click(submitButton);
await waitFor(() => {
const toastContainer = screen.getByTestId('toast-container');
expect(toastContainer).toHaveTextContent('Invalid email or password');
});
});
it('renders with English locale when selected', () => {
render(
<I18nProvider initialLocale="en">
<ToastProvider>
<LoginPage />
</ToastProvider>
</I18nProvider>
);
expect(screen.getAllByText('Sign In').length).toBeGreaterThanOrEqual(1);
expect(screen.getByText('Email Address')).toBeInTheDocument();
expect(screen.getByText('Password')).toBeInTheDocument();
});
});
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import { describe, it, expect } from 'vitest';
import { render, screen, fireEvent, act } from '@testing-library/react';
import { I18nProvider, useI18n } from '@/lib/i18n';
function TestComponent() {
const { locale, setLocale, t } = useI18n();
return (
<div>
<span data-testid="current-locale">{locale}</span>
<span data-testid="translated-login">{t('auth.loginButton')}</span>
<span data-testid="translated-save">{t('common.save')}</span>
<span data-testid="translated-vehicles">{t('nav.vehicles')}</span>
<button data-testid="switch-de" onClick={() => setLocale('de')}>DE</button>
<button data-testid="switch-en" onClick={() => setLocale('en')}>EN</button>
</div>
);
}
describe('i18n', () => {
it('renders German translations by default', () => {
render(
<I18nProvider initialLocale="de">
<TestComponent />
</I18nProvider>
);
expect(screen.getByTestId('current-locale')).toHaveTextContent('de');
expect(screen.getByTestId('translated-login')).toHaveTextContent('Anmelden');
expect(screen.getByTestId('translated-save')).toHaveTextContent('Speichern');
expect(screen.getByTestId('translated-vehicles')).toHaveTextContent('Fahrzeuge');
});
it('renders English translations when locale is en', () => {
render(
<I18nProvider initialLocale="en">
<TestComponent />
</I18nProvider>
);
expect(screen.getByTestId('current-locale')).toHaveTextContent('en');
expect(screen.getByTestId('translated-login')).toHaveTextContent('Sign In');
expect(screen.getByTestId('translated-save')).toHaveTextContent('Save');
expect(screen.getByTestId('translated-vehicles')).toHaveTextContent('Vehicles');
});
it('switches from DE to EN live', () => {
render(
<I18nProvider initialLocale="de">
<TestComponent />
</I18nProvider>
);
expect(screen.getByTestId('translated-login')).toHaveTextContent('Anmelden');
act(() => {
fireEvent.click(screen.getByTestId('switch-en'));
});
expect(screen.getByTestId('current-locale')).toHaveTextContent('en');
expect(screen.getByTestId('translated-login')).toHaveTextContent('Sign In');
expect(screen.getByTestId('translated-save')).toHaveTextContent('Save');
});
it('switches from EN to DE live', () => {
render(
<I18nProvider initialLocale="en">
<TestComponent />
</I18nProvider>
);
expect(screen.getByTestId('translated-login')).toHaveTextContent('Sign In');
act(() => {
fireEvent.click(screen.getByTestId('switch-de'));
});
expect(screen.getByTestId('current-locale')).toHaveTextContent('de');
expect(screen.getByTestId('translated-login')).toHaveTextContent('Anmelden');
expect(screen.getByTestId('translated-save')).toHaveTextContent('Speichern');
});
it('has at least 20 keys in de.json', async () => {
const deMessages = await import('@/messages/de.json');
expect(Object.keys(deMessages.default).length).toBeGreaterThanOrEqual(20);
});
it('has at least 20 keys in en.json', async () => {
const enMessages = await import('@/messages/en.json');
expect(Object.keys(enMessages.default).length).toBeGreaterThanOrEqual(20);
});
it('returns key as fallback for missing translations', () => {
render(
<I18nProvider initialLocale="de">
<TestComponent />
</I18nProvider>
);
// This is tested via the t() function - if key doesn't exist, it returns the key itself
// We verify this by checking that all our defined keys are translated
expect(screen.getByTestId('translated-login')).not.toHaveTextContent('auth.loginButton');
});
});
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import '@testing-library/jest-dom';
import { vi } from 'vitest';
// Mock next/navigation globally
vi.mock('next/navigation', () => ({
useRouter: () => ({
push: vi.fn(),
replace: vi.fn(),
back: vi.fn(),
refresh: vi.fn(),
}),
redirect: vi.fn(),
usePathname: () => '/login',
useSearchParams: () => new URLSearchParams(),
}));
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{
"compilerOptions": {
"target": "ES2017",
"lib": ["dom", "dom.iterable", "esnext"],
"allowJs": true,
"skipLibCheck": true,
"strict": true,
"noEmit": true,
"esModuleInterop": true,
"module": "esnext",
"moduleResolution": "bundler",
"resolveJsonModule": true,
"isolatedModules": true,
"jsx": "preserve",
"incremental": true,
"plugins": [{ "name": "next" }],
"paths": { "@/*": ["./*"] }
},
"include": ["next-env.d.ts", "**/*.ts", "**/*.tsx", ".next/types/**/*.ts"],
"exclude": ["node_modules"]
}
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import { defineConfig } from 'vitest/config';
import react from '@vitejs/plugin-react';
import path from 'path';
export default defineConfig({
plugins: [react()],
test: {
environment: 'jsdom',
globals: true,
setupFiles: ['./tests/setup.ts'],
},
resolve: {
alias: {
'@': path.resolve(__dirname, '.'),
},
},
});