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import { expect, test, type Download, type Locator, type Page } from '@playwright/test';
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import { PDFDocument, StandardFonts, rgb } from 'pdf-lib';
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import { zipSync } from 'fflate';
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import { readFile } from 'node:fs/promises';
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const createPdf = async (pageCount: number, label: string) => {
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const document = await PDFDocument.create();
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const font = await document.embedFont(StandardFonts.Helvetica);
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for (let pageNumber = 1; pageNumber <= pageCount; pageNumber += 1) {
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const page = document.addPage([420, 594]);
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page.drawText(`${label} – Seite ${pageNumber}`, {
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x: 40,
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y: 520,
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size: 20,
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font,
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color: rgb(0.1, 0.2, 0.4)
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});
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}
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return Buffer.from(await document.save());
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};
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const dropFiles = async (
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page: Page,
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target: Locator | 'window',
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files: Array<{ name: string; mimeType: string; buffer: Buffer }>
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) => {
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await page.locator('[data-dropzone-ready="true"]').first().waitFor();
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const dataTransfer = await page.evaluateHandle(
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(droppedFiles) => {
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const transfer = new DataTransfer();
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for (const droppedFile of droppedFiles) {
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const bytes = Uint8Array.from(atob(droppedFile.base64), (character) =>
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character.charCodeAt(0)
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);
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transfer.items.add(
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new File([bytes], droppedFile.name, {
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type: droppedFile.mimeType,
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lastModified: Date.now()
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})
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);
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}
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return transfer;
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},
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files.map((file) => ({
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name: file.name,
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mimeType: file.mimeType,
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base64: file.buffer.toString('base64')
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}))
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);
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if (target === 'window') {
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await page.evaluate((transfer) => {
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window.dispatchEvent(
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new DragEvent('drop', { dataTransfer: transfer, bubbles: true, cancelable: true })
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);
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}, dataTransfer);
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} else {
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await target.dispatchEvent('drop', { dataTransfer });
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}
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await dataTransfer.dispose();
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};
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const expectPdfDownload = async (download: Download, name: RegExp) => {
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expect(download.suggestedFilename()).toMatch(name);
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const path = await download.path();
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expect(path).not.toBeNull();
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const bytes = await readFile(path!);
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expect(bytes.subarray(0, 5).toString()).toBe('%PDF-');
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return bytes;
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};
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const trackPageErrors = (page: Page) => {
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const errors: Error[] = [];
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page.on('pageerror', (error) => errors.push(error));
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return errors;
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};
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const pdfDropzone = (page: Page) => page.getByRole('button', { name: 'PDF-Dateien hinzufügen' });
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test('start page exposes only working tools and forwards a dropped ZIP to beA', async ({
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page
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}) => {
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const pageErrors = trackPageErrors(page);
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const pdf = await createPdf(1, 'beA');
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const zip = Buffer.from(zipSync({ 'anlage.pdf': pdf }));
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await page.goto('/');
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await expect(page.getByRole('heading', { name: 'PDF-Werkzeuge' })).toBeVisible();
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await expect(page.getByRole('link', { name: /Signieren/ })).toHaveCount(0);
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await dropFiles(page, 'window', [
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{ name: 'bea-archiv.zip', mimeType: 'application/zip', buffer: zip }
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]);
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await expect(page).toHaveURL(/\/tools\/bea$/);
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await expect(page.getByText('1 lose Datei')).toBeVisible({ timeout: 15_000 });
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expect(pageErrors).toEqual([]);
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});
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test('merge accepts dropped PDFs and downloads a merged PDF', async ({ page }) => {
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const pageErrors = trackPageErrors(page);
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await page.goto('/tools/merge');
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await dropFiles(page, pdfDropzone(page), [
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{ name: 'eins.pdf', mimeType: 'application/pdf', buffer: await createPdf(1, 'Eins') },
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{ name: 'zwei.pdf', mimeType: 'application/pdf', buffer: await createPdf(2, 'Zwei') }
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]);
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await expect(page.getByText('2 Dateien ausgewählt')).toBeVisible();
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const downloadPromise = page.waitForEvent('download');
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await page.getByRole('button', { name: 'PDFs zusammenfügen' }).click();
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await expectPdfDownload(await downloadPromise, /^zusammengefuegt\.pdf$/);
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expect(pageErrors).toEqual([]);
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});
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test('separate renders dropped PDF pages and removes a selected page', async ({ page }) => {
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const pageErrors = trackPageErrors(page);
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await page.goto('/tools/separate');
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await dropFiles(page, pdfDropzone(page), [
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{ name: 'seiten.pdf', mimeType: 'application/pdf', buffer: await createPdf(3, 'Trennen') }
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]);
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await expect(page.getByRole('button', { name: /Seite 1/ })).toBeVisible({ timeout: 15_000 });
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await page.getByRole('button', { name: /Seite 2/ }).click();
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const downloadPromise = page.waitForEvent('download');
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await page.getByRole('button', { name: 'Seiten entfernen & herunterladen' }).click();
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await expectPdfDownload(await downloadPromise, /^seiten_ohne_seiten\.pdf$/);
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expect(pageErrors).toEqual([]);
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});
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test('watermark accepts numeric controls and downloads text and image watermarks', async ({
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page
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}) => {
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const pageErrors = trackPageErrors(page);
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await page.goto('/tools/watermark');
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await dropFiles(page, pdfDropzone(page), [
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{ name: 'marke.pdf', mimeType: 'application/pdf', buffer: await createPdf(1, 'Marke') }
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]);
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await expect(page.getByRole('heading', { name: 'Wasserzeichen-Einstellungen' })).toBeVisible({
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timeout: 15_000
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});
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await page.locator('#watermark-color').fill('#00ff00');
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await page.locator('#watermark-opacity').fill('0.45');
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const downloadPromise = page.waitForEvent('download');
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await page.getByRole('button', { name: 'Wasserzeichen anwenden & herunterladen' }).click();
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await expectPdfDownload(await downloadPromise, /^marke_wasserzeichen\.pdf$/);
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await page.getByLabel('Bild', { exact: true }).check();
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await dropFiles(page, page.getByRole('button', { name: 'Wasserzeichenbild hinzufügen' }), [
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{
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name: 'logo.png',
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mimeType: 'image/png',
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buffer: Buffer.from(
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'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mP8/x8AAusB9Y9Z5rAAAAAASUVORK5CYII=',
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'base64'
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)
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}
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]);
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const imageDownloadPromise = page.waitForEvent('download');
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await page.getByRole('button', { name: 'Wasserzeichen anwenden & herunterladen' }).click();
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await expectPdfDownload(await imageDownloadPromise, /^marke_wasserzeichen\.pdf$/);
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await expect(page.getByText('Fehler beim Anwenden')).toHaveCount(0);
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expect(pageErrors).toEqual([]);
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});
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test('encrypt creates a protected PDF and decrypt rebuilds it with the password', async ({
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page
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}) => {
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const pageErrors = trackPageErrors(page);
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await page.goto('/tools/encrypt');
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await dropFiles(page, pdfDropzone(page), [
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{ name: 'geheim.pdf', mimeType: 'application/pdf', buffer: await createPdf(1, 'Geheim') }
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]);
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await page.locator('#encrypt-password').fill('test-passwort');
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await page.locator('#encrypt-password-confirmation').fill('test-passwort');
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const encryptedDownloadPromise = page.waitForEvent('download');
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await page.getByRole('button', { name: 'Passwort setzen & herunterladen' }).click();
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const encryptedDownload = await encryptedDownloadPromise;
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const encryptedBytes = await expectPdfDownload(encryptedDownload, /^geheim_geschuetzt\.pdf$/);
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await page.goto('/tools/decrypt');
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await dropFiles(page, pdfDropzone(page), [
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{
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name: 'geheim_geschuetzt.pdf',
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mimeType: 'application/pdf',
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buffer: encryptedBytes
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}
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]);
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await page.locator('#decrypt-password').fill('test-passwort');
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const decryptedDownloadPromise = page.waitForEvent('download');
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await page.getByRole('button', { name: 'Passwort entfernen & herunterladen' }).click();
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await expectPdfDownload(await decryptedDownloadPromise, /^geheim_geschuetzt_entsperrt\.pdf$/);
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expect(pageErrors).toEqual([]);
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});
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test('compress previews result size before downloading', async ({ page }) => {
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const pageErrors = trackPageErrors(page);
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await page.goto('/tools/compress');
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await dropFiles(page, pdfDropzone(page), [
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{ name: 'gross.pdf', mimeType: 'application/pdf', buffer: await createPdf(2, 'Komprimieren') }
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]);
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await page.getByRole('button', { name: 'Komprimieren', exact: true }).click();
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await expect(page.getByText(/Ergebnisgröße:/)).toBeVisible({ timeout: 20_000 });
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const downloadPromise = page.waitForEvent('download');
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await page.getByRole('button', { name: 'PDF herunterladen' }).click();
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await expectPdfDownload(await downloadPromise, /^gross_komprimiert\.pdf$/);
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expect(pageErrors).toEqual([]);
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});
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test('convert bundles a multi-page PDF as a correctly named ZIP', async ({ page }) => {
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const pageErrors = trackPageErrors(page);
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await page.goto('/tools/convert');
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await dropFiles(page, pdfDropzone(page), [
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{ name: 'bilder.pdf', mimeType: 'application/pdf', buffer: await createPdf(2, 'Bilder') }
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]);
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const downloadPromise = page.waitForEvent('download');
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await page.getByRole('button', { name: 'Konvertieren & herunterladen' }).click();
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const download = await downloadPromise;
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expect(download.suggestedFilename()).toBe('bilder_bilder.zip');
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expect(download.suggestedFilename()).not.toContain('.pdf');
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expect(pageErrors).toEqual([]);
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});
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