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familienarchiv/frontend/src/lib/shared/primitives/LanguageSwitcher.svelte.spec.ts
2026-05-05 14:40:14 +02:00

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import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
import { cleanup, render } from 'vitest-browser-svelte';
import { page } from 'vitest/browser';
import LanguageSwitcher from './LanguageSwitcher.svelte';
const mockSetLocale = vi.hoisted(() => vi.fn());
vi.mock('$lib/paraglide/runtime', () => ({
getLocale: vi.fn(() => 'de'),
setLocale: mockSetLocale
}));
beforeEach(() => mockSetLocale.mockClear());
afterEach(cleanup);
// ─── inverted=true (dark background) ──────────────────────────────────────
describe('LanguageSwitcher inverted=true', () => {
it('active locale button has text-white and font-bold', async () => {
render(LanguageSwitcher, { inverted: true });
const el = await page.getByRole('button', { name: 'DE' }).element();
expect(el.className).toMatch(/\btext-white\b/);
expect(el.className).toMatch(/\bfont-bold\b/);
});
it('inactive locale buttons have text-white/70', async () => {
render(LanguageSwitcher, { inverted: true });
const el = await page.getByRole('button', { name: 'EN' }).element();
expect(el.className).toMatch(/text-white\/70/);
});
it('inactive locale buttons do not have font-bold', async () => {
render(LanguageSwitcher, { inverted: true });
const el = await page.getByRole('button', { name: 'EN' }).element();
expect(el.className).not.toMatch(/\bfont-bold\b/);
});
});
// ─── inverted=false (light background) ─────────────────────────────────────
describe('LanguageSwitcher inverted=false', () => {
it('active locale button has text-ink and font-bold', async () => {
render(LanguageSwitcher, { inverted: false });
const el = await page.getByRole('button', { name: 'DE' }).element();
expect(el.className).toMatch(/\btext-ink\b/);
expect(el.className).toMatch(/\bfont-bold\b/);
});
it('inactive locale buttons have text-ink-3', async () => {
render(LanguageSwitcher, { inverted: false });
const el = await page.getByRole('button', { name: 'EN' }).element();
expect(el.className).toMatch(/\btext-ink-3\b/);
});
it('inactive locale buttons do not have text-white', async () => {
render(LanguageSwitcher, { inverted: false });
const el = await page.getByRole('button', { name: 'EN' }).element();
expect(el.className).not.toMatch(/\btext-white\b/);
});
});
// ─── locale switching ──────────────────────────────────────────────────────
describe('LanguageSwitcher locale switching', () => {
it('calls setLocale with en when EN button is clicked', async () => {
render(LanguageSwitcher, { inverted: false });
const el = await page.getByRole('button', { name: 'EN' }).element();
el.click();
expect(mockSetLocale).toHaveBeenCalledWith('en');
});
it('calls setLocale with es when ES button is clicked', async () => {
render(LanguageSwitcher, { inverted: false });
const el = await page.getByRole('button', { name: 'ES' }).element();
el.click();
expect(mockSetLocale).toHaveBeenCalledWith('es');
});
});