073b6cb45d
- import PdfViewer left mid-file from vi.mock hoisting — no longer needed (Sara/Felix) - adds one-line comment explaining as unknown as cast is an intentional partial fake (Felix) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
55 lines
2.2 KiB
TypeScript
55 lines
2.2 KiB
TypeScript
import { vi, describe, it, expect, afterEach } from 'vitest';
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import { cleanup, render } from 'vitest-browser-svelte';
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import { page } from 'vitest/browser';
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import type { createPdfRenderer } from '$lib/document/viewer/usePdfRenderer.svelte';
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import PdfViewer from './PdfViewer.svelte';
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afterEach(cleanup);
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function makeFakePdfjsLib() {
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function TextLayerMock() {}
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TextLayerMock.prototype.render = () => Promise.resolve();
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TextLayerMock.prototype.cancel = () => {};
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return {
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GlobalWorkerOptions: { workerSrc: '' },
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getDocument: vi.fn().mockReturnValue({
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promise: Promise.resolve({
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numPages: 2,
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getPage: vi.fn().mockResolvedValue({
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getViewport: vi.fn().mockReturnValue({ width: 595, height: 842 }),
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render: vi.fn().mockReturnValue({ promise: Promise.resolve() }),
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streamTextContent: vi.fn().mockReturnValue(new ReadableStream())
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})
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})
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}),
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TextLayer: TextLayerMock
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// Partial fake: only the methods used by usePdfRenderer are implemented
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} as unknown as typeof import('pdfjs-dist');
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}
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function makeFakeLibLoader(): Parameters<typeof createPdfRenderer>[0] {
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const fakePdfjs = makeFakePdfjsLib();
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return vi.fn().mockResolvedValue([fakePdfjs, { default: '' }] as const);
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}
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describe('PdfViewer', () => {
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it('shows previous and next page navigation buttons', async () => {
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render(PdfViewer, { url: '/api/documents/test-id/file', libLoader: makeFakeLibLoader() });
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await expect.element(page.getByRole('button', { name: /zurück/i })).toBeInTheDocument();
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await expect.element(page.getByRole('button', { name: /weiter/i })).toBeInTheDocument();
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});
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it('shows zoom controls', async () => {
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render(PdfViewer, { url: '/api/documents/test-id/file', libLoader: makeFakeLibLoader() });
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await expect.element(page.getByRole('button', { name: /vergrößern/i })).toBeInTheDocument();
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await expect.element(page.getByRole('button', { name: /verkleinern/i })).toBeInTheDocument();
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});
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it('displays the page counter once the PDF has loaded', async () => {
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render(PdfViewer, { url: '/api/documents/test-id/file', libLoader: makeFakeLibLoader() });
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// Fake loader resolves synchronously, so "1 / 2" should appear quickly
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await expect.element(page.getByText(/1\s*\/\s*2/)).toBeInTheDocument();
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});
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});
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