test(frontend): añadir tests de componente App

frontend/src/App.test.js

@@ -0,0 +1,136 @@
+/*
+CI/CD Workshop
+Copyright (C) 2025 OpenBokeron
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';
+import { render, screen, waitFor } from '@testing-library/svelte';
+import App from './App.svelte';
+
+const mockMenu = {
+    starters: ['Sopa de cocido', 'Ensalada mixta'],
+    mains: ['Pescado al vapor', 'Pollo asado'],
+    garnish: ['Patatas fritas'],
+    desserts: ['Fruta del tiempo', 'Yogur'],
+    notes: ['Pan y bebida incluidos'],
+    menu_price: 5.5,
+    university_deal: {
+        old_price: 4.5,
+        current_price: 5.5,
+        note: 'Gracias al convenio con la Universidad',
+    },
+    alternative: { title: 'Plato alternativo', items: [], price: 5.0 },
+    availability: { last_updated: '12:00' },
+    espetos_tip: 'Hoy toca sardinas',
+};
+
+const mockPrices = {
+    items: [
+        { item: 'cafe', price: 1.2, currency: 'EUR', generated_at: '10:00' },
+        { item: 'tostada', price: 2.0, currency: 'EUR', generated_at: '10:00' },
+    ],
+};
+
+const mockHealth = {
+    status: 'ok',
+    build: 42,
+    commit: 'abc1234def5678',
+    author: 'Test Author',
+    uptime_seconds: 3600,
+};
+
+const mockBuilds = {
+    builds: [
+        {
+            number: 42,
+            status: 'success',
+            finished_at: Date.now(),
+            duration_seconds: 60,
+            commits: [{ commit: 'abc1234', message: 'Fix bug', author: 'Dev' }],
+        },
+    ],
+};
+
+function createMockFetch() {
+    return vi.fn((url) => {
+        if (url.includes('/menu')) {
+            return Promise.resolve({ ok: true, json: () => Promise.resolve(mockMenu) });
+        }
+        if (url.includes('/prices')) {
+            return Promise.resolve({ ok: true, json: () => Promise.resolve(mockPrices) });
+        }
+        if (url.includes('/health')) {
+            return Promise.resolve({ ok: true, json: () => Promise.resolve(mockHealth) });
+        }
+        if (url.includes('/builds')) {
+            return Promise.resolve({ ok: true, json: () => Promise.resolve(mockBuilds) });
+        }
+        return Promise.resolve({ ok: false, status: 404 });
+    });
+}
+
+describe('App.svelte', () => {
+    beforeEach(() => {
+        vi.stubGlobal('fetch', createMockFetch());
+    });
+
+    afterEach(() => {
+        vi.unstubAllGlobals();
+    });
+
+    it('renderiza el titulo principal', async () => {
+        render(App);
+
+        await waitFor(() => {
+            expect(screen.getByRole('heading', { level: 1 })).toBeInTheDocument();
+        });
+    });
+
+    it('muestra las secciones del menu cuando carga', async () => {
+        render(App);
+
+        await waitFor(() => {
+            expect(screen.getByText('Primeros')).toBeInTheDocument();
+            expect(screen.getByText('Segundos')).toBeInTheDocument();
+            expect(screen.getByText('Postres')).toBeInTheDocument();
+        });
+    });
+
+    it('muestra el estado de la API como operativa', async () => {
+        render(App);
+
+        await waitFor(() => {
+            expect(screen.getByText(/Operativa/)).toBeInTheDocument();
+        });
+    });
+
+    it('muestra el numero de build de Jenkins', async () => {
+        render(App);
+
+        await waitFor(() => {
+            expect(screen.getByText('#42')).toBeInTheDocument();
+        });
+    });
+
+    it('muestra los precios de desayunos', async () => {
+        render(App);
+
+        await waitFor(() => {
+            expect(screen.getByText('Cafe')).toBeInTheDocument();
+            expect(screen.getByText('Tostada')).toBeInTheDocument();
+        });
+    });
+});