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test(pdf-viewer): port PdfViewer.svelte.test.ts to libLoader prop injection — remove vi.mock

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Removes both vi.mock('pdfjs-dist', …) calls that caused the birpc teardown
race (ADR 012). Replaces with static import + makeFakeLibLoader() helper
injected via the libLoader prop on every render() call.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Marcel
2026-05-12 12:17:25 +02:00
committed by marcel
parent 763e9f5708
commit 6c596babcb
1 changed files with 62 additions and 32 deletions
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94
frontend/src/lib/document/viewer/PdfViewer.svelte.test.ts
View File

@@ -1,11 +1,18 @@
import { describe, it, expect, vi, afterEach } from 'vitest';
import { cleanup, render } from 'vitest-browser-svelte';
import { page } from 'vitest/browser';
import type { LibLoader } from '$lib/document/viewer/usePdfRenderer.svelte';
import PdfViewer from './PdfViewer.svelte';
vi.mock('pdfjs-dist', () => {
function TextLayerMock() {}
TextLayerMock.prototype.render = () => Promise.resolve();
TextLayerMock.prototype.cancel = () => {};
afterEach(cleanup);
function makeFakePdfjsLib() {
class TextLayerMock {
render() {
return Promise.resolve();
}
cancel() {}
}
return {
GlobalWorkerOptions: { workerSrc: '' },
@@ -20,24 +27,23 @@ vi.mock('pdfjs-dist', () => {
})
}),
TextLayer: TextLayerMock
};
});
} as unknown as typeof import('pdfjs-dist');
}
vi.mock('pdfjs-dist/build/pdf.worker.min.mjs?url', () => ({ default: '' }));
const { default: PdfViewer } = await import('./PdfViewer.svelte');
afterEach(cleanup);
function makeFakeLibLoader(): LibLoader {
const fakePdfjs = makeFakePdfjsLib();
return vi.fn().mockResolvedValue([fakePdfjs, { default: '' }] as const);
}
describe('PdfViewer — empty / error states', () => {
it('renders the no-file placeholder when url is empty', async () => {
render(PdfViewer, { url: '' });
render(PdfViewer, { url: '', libLoader: makeFakeLibLoader() });
await expect.element(page.getByText('Keine Datei vorhanden')).toBeVisible();
});
it('does not render the controls when url is empty', async () => {
render(PdfViewer, { url: '' });
render(PdfViewer, { url: '', libLoader: makeFakeLibLoader() });
const buttons = document.querySelectorAll('button');
expect(buttons.length).toBe(0);
@@ -49,10 +55,10 @@ describe('PdfViewer — loaded state', () => {
render(PdfViewer, {
url: '/api/documents/test/file',
documentId: 'test',
annotationReloadKey: 0
annotationReloadKey: 0,
libLoader: makeFakeLibLoader()
});
// PdfControls renders its nav + zoom buttons once the document.promise resolves.
await expect.element(page.getByRole('button', { name: 'Zurück' })).toBeVisible();
await expect.element(page.getByRole('button', { name: 'Weiter' })).toBeVisible();
await expect.element(page.getByRole('button', { name: 'Vergrößern' })).toBeVisible();
@@ -63,7 +69,8 @@ describe('PdfViewer — loaded state', () => {
render(PdfViewer, {
url: '/api/documents/test/file',
documentId: 'test',
annotationsDimmed: true
annotationsDimmed: true,
libLoader: makeFakeLibLoader()
});
await vi.waitFor(() => {
@@ -96,11 +103,10 @@ describe('PdfViewer — loaded state', () => {
url: '/api/documents/test/file',
documentId: 'test',
transcribeMode: true,
documentFileHash: 'match'
documentFileHash: 'match',
libLoader: makeFakeLibLoader()
});
// transcribeMode forces showAnnotations=true; toggle button surfaces with "hide" label
// (only when annotationCount > 0).
await expect
.element(page.getByRole('button', { name: /annotierungen verbergen/i }))
.toBeVisible();
@@ -113,7 +119,8 @@ describe('PdfViewer — loaded state', () => {
render(PdfViewer, {
url: '/api/documents/test/file',
documentId: 'test',
documentFileHash: 'abc123'
documentFileHash: 'abc123',
libLoader: makeFakeLibLoader()
});
await vi.waitFor(() => {
@@ -125,7 +132,8 @@ describe('PdfViewer — loaded state', () => {
render(PdfViewer, {
url: '/api/documents/test/file',
documentId: 'test',
flashAnnotationId: 'ann-flashing'
flashAnnotationId: 'ann-flashing',
libLoader: makeFakeLibLoader()
});
await expect.element(page.getByRole('button', { name: 'Zurück' })).toBeVisible();
@@ -135,7 +143,8 @@ describe('PdfViewer — loaded state', () => {
render(PdfViewer, {
url: '/api/documents/test/file',
documentId: 'test',
blockNumbers: { 'ann-1': 1, 'ann-2': 2 }
blockNumbers: { 'ann-1': 1, 'ann-2': 2 },
libLoader: makeFakeLibLoader()
});
await expect.element(page.getByRole('button', { name: 'Zurück' })).toBeVisible();
@@ -145,7 +154,8 @@ describe('PdfViewer — loaded state', () => {
render(PdfViewer, {
url: '/api/documents/test/file',
documentId: 'test',
activeAnnotationId: 'ann-1'
activeAnnotationId: 'ann-1',
libLoader: makeFakeLibLoader()
});
await expect.element(page.getByRole('button', { name: 'Zurück' })).toBeVisible();
@@ -156,10 +166,10 @@ describe('PdfViewer — loaded state', () => {
url: '/api/documents/test/file',
documentId: 'test',
transcribeMode: true,
activeAnnotationId: 'ann-1'
activeAnnotationId: 'ann-1',
libLoader: makeFakeLibLoader()
});
// Without an annotations fetch, the visibility toggle is hidden — just assert the always-on nav.
await expect.element(page.getByRole('button', { name: 'Zurück' })).toBeVisible();
await expect.element(page.getByRole('button', { name: 'Weiter' })).toBeVisible();
});
@@ -169,7 +179,8 @@ describe('PdfViewer — loaded state', () => {
render(PdfViewer, {
url: '/api/documents/test/file',
documentId: 'test',
onAnnotationClick
onAnnotationClick,
libLoader: makeFakeLibLoader()
});
await expect.element(page.getByRole('button', { name: 'Zurück' })).toBeVisible();
@@ -199,7 +210,8 @@ describe('PdfViewer — loaded state', () => {
render(PdfViewer, {
url: '/api/documents/test/file',
documentId: 'test',
documentFileHash: 'new-hash'
documentFileHash: 'new-hash',
libLoader: makeFakeLibLoader()
});
await vi.waitFor(() => {
@@ -234,10 +246,10 @@ describe('PdfViewer — loaded state', () => {
render(PdfViewer, {
url: '/api/documents/test/file',
documentId: 'test',
documentFileHash: 'matching-hash'
documentFileHash: 'matching-hash',
libLoader: makeFakeLibLoader()
});
// Controls finish mounting, and the outdated notice stays absent.
await expect.element(page.getByRole('button', { name: 'Zurück' })).toBeVisible();
expect(document.querySelector('[data-testid="annotation-outdated-notice"]')).toBeNull();
} finally {
@@ -250,10 +262,10 @@ describe('PdfViewer — loaded state', () => {
try {
render(PdfViewer, {
url: '/api/documents/test/file',
documentId: 'test'
documentId: 'test',
libLoader: makeFakeLibLoader()
});
// PDF rendering does not depend on the annotations fetch — controls still appear.
await expect.element(page.getByRole('button', { name: 'Zurück' })).toBeVisible();
expect(document.querySelector('[data-testid="annotation-outdated-notice"]')).toBeNull();
} finally {
@@ -268,7 +280,8 @@ describe('PdfViewer — loaded state', () => {
try {
render(PdfViewer, {
url: '/api/documents/test/file',
documentId: 'test'
documentId: 'test',
libLoader: makeFakeLibLoader()
});
await expect.element(page.getByRole('button', { name: 'Zurück' })).toBeVisible();
@@ -277,4 +290,21 @@ describe('PdfViewer — loaded state', () => {
fetchSpy.mockRestore();
}
});
it('shows previous and next page navigation buttons', async () => {
render(PdfViewer, { url: '/api/documents/test-id/file', libLoader: makeFakeLibLoader() });
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', libLoader: makeFakeLibLoader() });
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', libLoader: makeFakeLibLoader() });
await expect.element(page.getByText(/1\s*\/\s*2/)).toBeInTheDocument();
});
});