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import * as path from 'path';
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import * as fs from 'fs';
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import * as http from 'http';
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import { rollup } from 'rollup';
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import virtual from '@rollup/plugin-virtual';
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import puppeteer from 'puppeteer';
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import {
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loadConfig,
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loadSvelte,
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mkdirp,
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prettyPrintPuppeteerAssertionError,
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retryAsync,
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executeBrowserTest
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} from '../helpers';
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import { deepEqual } from 'assert';
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const page = `
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<body>
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<main></main>
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<script src='/bundle.js'></script>
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</body>
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`;
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let svelte;
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let server;
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let code;
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let browser;
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const internal = path.resolve('internal/index.mjs');
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const index = path.resolve('index.mjs');
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function create_server() {
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return new Promise((fulfil, reject) => {
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const server = http.createServer((req, res) => {
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if (req.url === '/') {
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res.end(page);
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}
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if (req.url === '/bundle.js') {
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res.end(code);
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}
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});
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server.on('error', reject);
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server.listen('6789', () => {
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fulfil(server);
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});
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});
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}
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async function launchPuppeteer() {
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return await retryAsync(() => puppeteer.launch());
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}
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const assert = fs.readFileSync(`${__dirname}/assert.js`, 'utf-8');
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describe('runtime (puppeteer)', () => {
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before(async () => {
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svelte = loadSvelte(false);
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console.log('[runtime-puppeteer] Loaded Svelte');
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server = await create_server();
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console.log('[runtime-puppeteer] Started server');
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browser = await launchPuppeteer();
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console.log('[runtime-puppeteer] Launched puppeteer browser');
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});
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after(async () => {
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if (server) server.close();
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if (browser) await browser.close();
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});
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const failed = new Set();
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function runTest(dir, hydrate, is_first_run) {
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if (dir[0] === '.') return;
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// MEMO: puppeteer can not execute Chromium properly with Node8,10 on Linux at GitHub actions.
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const { version } = process;
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if ((version.startsWith('v8.') || version.startsWith('v10.')) && process.platform === 'linux') return;
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const config = loadConfig(`${__dirname}/samples/${dir}/_config.js`);
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const solo = config.solo || /\.solo/.test(dir);
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const skip = config.skip || /\.skip/.test(dir);
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if (hydrate && config.skip_if_hydrate) return;
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if (solo && process.env.CI) {
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throw new Error('Forgot to remove `solo: true` from test');
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}
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(skip ? it.skip : solo ? it.only : it)(`${dir} ${hydrate ? '(with hydration)' : ''}`, async () => {
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if (failed.has(dir)) {
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// this makes debugging easier, by only printing compiled output once
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throw new Error('skipping test, already failed');
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}
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const warnings = [];
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const bundle = await rollup({
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input: 'main',
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plugins: [
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{
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name: 'testing-runtime-puppeteer',
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resolveId(importee) {
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if (importee === 'svelte/internal' || importee === './internal') {
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return internal;
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}
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if (importee === 'svelte') {
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return index;
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}
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if (importee === 'main') {
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return 'main';
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}
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},
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load(id) {
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if (id === 'main') {
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return `
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import SvelteComponent from ${JSON.stringify(
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path.join(__dirname, 'samples', dir, 'main.svelte')
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)};
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import config from ${JSON.stringify(
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path.join(__dirname, 'samples', dir, '_config.js')
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)};
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import * as assert from 'assert';
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export default async function (target) {
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let unhandled_rejection = false;
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function unhandled_rejection_handler(event) {
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unhandled_rejection = event.reason;
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}
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window.addEventListener('unhandledrejection', unhandled_rejection_handler);
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try {
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if (config.before_test) config.before_test();
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const options = Object.assign({}, {
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target,
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hydrate: ${String(!!hydrate)},
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props: config.props,
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intro: config.intro
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}, config.options || {});
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const component = new SvelteComponent(options);
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const waitUntil = async (fn, ms = 500) => {
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const start = new Date().getTime();
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do {
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if (fn()) return;
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await new Promise(resolve => window.setTimeout(resolve, 1));
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} while (new Date().getTime() <= start + ms);
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};
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if (config.html) {
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assert.htmlEqual(target.innerHTML, config.html);
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}
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if (config.test) {
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await config.test({
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assert,
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component,
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target,
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window,
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waitUntil,
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});
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component.$destroy();
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if (unhandled_rejection) {
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throw unhandled_rejection;
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}
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} else {
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component.$destroy();
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assert.htmlEqual(target.innerHTML, '');
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if (unhandled_rejection) {
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throw unhandled_rejection;
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}
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}
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if (config.after_test) config.after_test();
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} catch (error) {
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if (config.error) {
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assert.equal(err.message, config.error);
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} else {
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throw error;
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}
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} finally {
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window.removeEventListener('unhandledrejection', unhandled_rejection_handler);
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}
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}
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`;
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}
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return null;
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},
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transform(code, id) {
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if (id.endsWith('.svelte')) {
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const compiled = svelte.compile(code.replace(/\r/g, ''), {
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...config.compileOptions,
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hydratable: hydrate,
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immutable: config.immutable,
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accessors: 'accessors' in config ? config.accessors : true
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});
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const out_dir = `${__dirname}/samples/${dir}/_output/${hydrate ? 'hydratable' : 'normal'}`;
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const out = `${out_dir}/${path.basename(id).replace(/\.svelte$/, '.js')}`;
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if (fs.existsSync(out)) {
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fs.unlinkSync(out);
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}
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mkdirp(out_dir);
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fs.writeFileSync(out, compiled.js.code, 'utf8');
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compiled.warnings.forEach(w => warnings.push(w));
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return compiled.js;
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}
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}
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},
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virtual({ assert })
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]
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});
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const result = await bundle.generate({ format: 'iife', name: 'test' });
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code = result.output[0].code;
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function assertWarnings() {
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if (config.warnings) {
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deepEqual(warnings.map(w => ({
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code: w.code,
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message: w.message,
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pos: w.pos,
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start: w.start,
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end: w.end
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})), config.warnings);
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} else if (warnings.length) {
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failed.add(dir);
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/* eslint-disable no-unsafe-finally */
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throw new Error('Received unexpected warnings');
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}
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}
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browser = await executeBrowserTest(
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browser,
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launchPuppeteer,
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assertWarnings,
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(err) => {
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failed.add(dir);
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prettyPrintPuppeteerAssertionError(err.message);
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assertWarnings();
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});
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}).timeout(is_first_run ? 20000 : 10000);
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}
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// Increase the timeout on the first run in preparation for restarting Chromium due to SIGSEGV.
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let first_run = true;
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fs.readdirSync(`${__dirname}/samples`).forEach(dir => {
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runTest(dir, false, first_run);
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runTest(dir, true, first_run);
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first_run = false;
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});
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});
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