From 5f272b9d910781e69cc69459ad126a282ecfeeaa Mon Sep 17 00:00:00 2001
From: baseballyama <xydybaseball@gmail.com>
Date: Thu, 30 Dec 2021 23:03:34 +0900
Subject: [PATCH] prevent 'Failed to launch the browser process!'

---
 test/custom-elements/index.ts   |  5 +++--
 test/helpers.ts                 | 11 +++++++++++
 test/runtime-puppeteer/index.ts |  9 ++++++---
 3 files changed, 20 insertions(+), 5 deletions(-)

diff --git a/test/custom-elements/index.ts b/test/custom-elements/index.ts
index b928b9f695..10e74bdaf4 100644
--- a/test/custom-elements/index.ts
+++ b/test/custom-elements/index.ts
@@ -4,7 +4,7 @@ import * as http from 'http';
 import { rollup } from 'rollup';
 import virtual from '@rollup/plugin-virtual';
 import puppeteer from 'puppeteer';
-import { addLineNumbers, loadConfig, loadSvelte, getNewPage } from '../helpers';
+import { addLineNumbers, loadConfig, loadSvelte, getNewPage, retryAsync } from '../helpers';
 import { deepEqual } from 'assert';
 
 const page = `
@@ -17,6 +17,7 @@ const page = `
 const assert = fs.readFileSync(`${__dirname}/assert.js`, 'utf-8');
 
 describe('custom-elements', function () {
+	// Note: Increase the timeout in preparation for restarting Chromium due to SIGSEGV.
 	this.timeout(10000);
 	let svelte;
 	let server;
@@ -44,7 +45,7 @@ describe('custom-elements', function () {
 	}
 
 	async function launchPuppeteer() {
-		return await puppeteer.launch();
+		return await retryAsync(() => puppeteer.launch());
 	}
 
 	before(async () => {
diff --git a/test/helpers.ts b/test/helpers.ts
index dd2c0d2448..bd561e16bf 100644
--- a/test/helpers.ts
+++ b/test/helpers.ts
@@ -297,3 +297,14 @@ export async function getNewPage(browser: Browser): Promise<Page> {
 
 	return page;
 }
+
+export async function retryAsync<T>(fn: () => Promise<T>): Promise<T> {
+	let attempts = 0;
+	while (attempts <= 3) {
+		try {
+			return await fn();
+		} catch (err) {
+			if (++attempts >= 3) throw err;
+		}
+	}
+}
diff --git a/test/runtime-puppeteer/index.ts b/test/runtime-puppeteer/index.ts
index 3c232b1da5..969777c1ee 100644
--- a/test/runtime-puppeteer/index.ts
+++ b/test/runtime-puppeteer/index.ts
@@ -10,7 +10,8 @@ import {
 	loadSvelte,
 	mkdirp,
 	prettyPrintPuppeteerAssertionError,
-	getNewPage
+	getNewPage,
+	retryAsync
 } from '../helpers';
 import { deepEqual } from 'assert';
 
@@ -50,12 +51,14 @@ function create_server() {
 }
 
 async function launchPuppeteer() {
-	return await puppeteer.launch();
+	return await retryAsync(() => puppeteer.launch());
 }
 
 const assert = fs.readFileSync(`${__dirname}/assert.js`, 'utf-8');
 
-describe('runtime (puppeteer)', () => {
+describe('runtime (puppeteer)', function () {
+	// Note: Increase the timeout in preparation for restarting Chromium due to SIGSEGV.
+	this.timeout(10000);
 	before(async () => {
 		svelte = loadSvelte(false);
 		console.log('[runtime-puppeteer] Loaded Svelte');