Files
familienarchiv/frontend/src/lib/document/viewer/PdfViewer.svelte.spec.ts
Marcel 1e656d2db4 refactor: move document transcription, annotation, viewer sub-packages
- transcription/: TranscriptionBlock, Column, EditView, PanelHeader, ReadView,
  Section + transcriptionMarkers, blockConflictMerge, saveBlockWithConflictRetry
  + useBlockAutoSave, useBlockDragDrop hooks
- annotation/: AnnotationLayer, AnnotationShape, AnnotationEditOverlay
- viewer/: PdfViewer, PdfControls + useFileLoader, usePdfRenderer hooks

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-05 14:01:39 +02:00

54 lines
2.0 KiB
TypeScript

import { vi, describe, it, expect, afterEach } from 'vitest';
import { cleanup, render } from 'vitest-browser-svelte';
import { page } from 'vitest/browser';
// pdfjs-dist is a rendering dependency — we mock it so unit tests don't need
// a real browser PDF engine. The interesting behaviour under test here is the
// component's own UI logic (controls, page counter), not pdfjs internals.
vi.mock('pdfjs-dist', () => {
function TextLayerMock() {}
TextLayerMock.prototype.render = () => Promise.resolve();
TextLayerMock.prototype.cancel = () => {};
return {
GlobalWorkerOptions: { workerSrc: '' },
getDocument: vi.fn().mockReturnValue({
promise: Promise.resolve({
numPages: 2,
getPage: vi.fn().mockResolvedValue({
getViewport: vi.fn().mockReturnValue({ width: 595, height: 842 }),
render: vi.fn().mockReturnValue({ promise: Promise.resolve() }),
streamTextContent: vi.fn().mockReturnValue(new ReadableStream())
})
})
}),
TextLayer: TextLayerMock
};
});
vi.mock('pdfjs-dist/build/pdf.worker.min.mjs?url', () => ({ default: '' }));
import PdfViewer from './PdfViewer.svelte';
afterEach(cleanup);
describe('PdfViewer', () => {
it('shows previous and next page navigation buttons', async () => {
render(PdfViewer, { url: '/api/documents/test-id/file' });
await expect.element(page.getByRole('button', { name: /zurück/i })).toBeInTheDocument();
await expect.element(page.getByRole('button', { name: /weiter/i })).toBeInTheDocument();
});
it('shows zoom controls', async () => {
render(PdfViewer, { url: '/api/documents/test-id/file' });
await expect.element(page.getByRole('button', { name: /vergrößern/i })).toBeInTheDocument();
await expect.element(page.getByRole('button', { name: /verkleinern/i })).toBeInTheDocument();
});
it('displays the page counter once the PDF has loaded', async () => {
render(PdfViewer, { url: '/api/documents/test-id/file' });
// Mock resolves synchronously, so "1 / 2" should appear quickly
await expect.element(page.getByText(/1\s*\/\s*2/)).toBeInTheDocument();
});
});