fix: port over Travis CI updates from #1109 meant to improve the reli…

…ability / consistency of the visual regression test results being run by Jest

.travis.yml

@@ -13,6 +13,9 @@ before_install:
 services:
   - docker
 
+addons:
+  chrome: stable
+
 # see more conditions: https://docs.travis-ci.com/user/conditions-v1
 # Stages run sequentially; the jobs in them run in parallel
 stages:

jest-global-setup.js

@@ -7,6 +7,7 @@ const os = require('os');
 
 const DIR = path.join(os.tmpdir(), 'jest_puppeteer_global_setup');
 
+const chromePath = require('@moonandyou/chrome-path');
 const { buildPrep } = require('./packages/build-tools/tasks/task-collections');
 const imageTasks = require('./packages/build-tools/tasks/image-tasks');
 const iconTasks = require('./packages/build-tools/tasks/icon-tasks');
@@ -15,10 +16,14 @@ const teardown = require('./jest-global-teardown.js');
 
 module.exports = async function globalSetup() {
   let config = await getConfig();
+  const localChromePath = await chromePath();
   const existingIconsDir =
     typeof config.iconDir !== 'undefined' ? config.iconDir : [];
 
-  config.iconDir = [...existingIconsDir, path.join(__dirname, './test/jest-test-svgs')];
+  config.iconDir = [
+    ...existingIconsDir,
+    path.join(__dirname, './test/jest-test-svgs'),
+  ];
 
   await buildPrep({ cleanAll: true }); // clear out all folders before running
   await imageTasks.processImages(); // process image fixtures used by any tests
@@ -28,9 +33,13 @@ module.exports = async function globalSetup() {
     command: `node packages/servers/testing-server`,
     launchTimeout: 50000,
     port: 4444,
+    usedPortAction: 'kill',
   });
 
-  const browser = await puppeteer.launch();
+  const browser = await puppeteer.launch({
+    args: ['--no-sandbox', '--disable-setuid-sandbox'],
+    executablePath: localChromePath['google-chrome'],
+  });
   // store the browser instance so we can teardown it later
   // this global is only available in the teardown but not in TestEnvironments
   global.__BROWSER_GLOBAL__ = browser;

package.json

@@ -93,6 +93,7 @@
     "semantic-release": "^15.13.3"
   },
   "dependencies": {
+    "@moonandyou/chrome-path": "^0.2.1",
     "cli-highlight": "^2.0.0",
     "babel-jest": "^24.5.0",
     "@open-wc/testing-helpers": "^0.7.22",

yarn.lock

@@ -1696,6 +1696,13 @@
     mkdirp "^0.5.1"
     rimraf "^2.5.2"
 
+"@moonandyou/chrome-path@^0.2.1":
+  version "0.2.1"
+  resolved "https://registry.npmjs.org/@moonandyou/chrome-path/-/chrome-path-0.2.1.tgz#6c0856bb4ff86bcad0b4eb9ee5ffaece62b5f042"
+  integrity sha1-bAhWu0/4a8rQtOue5f+uzmK18EI=
+  dependencies:
+    lsregister "^0.0.1"
+
 "@mrmlnc/readdir-enhanced@^2.2.1":
   version "2.2.1"
   resolved "https://registry.npmjs.org/@mrmlnc/readdir-enhanced/-/readdir-enhanced-2.2.1.tgz#524af240d1a360527b730475ecfa1344aa540dde"
@@ -10965,6 +10972,11 @@ lru-cache@^5.1.1:
   dependencies:
     yallist "^3.0.2"
 
+lsregister@^0.0.1:
+  version "0.0.1"
+  resolved "https://registry.npmjs.org/lsregister/-/lsregister-0.0.1.tgz#ae52196808b736ba1c0c1f243a30501fa1dd8262"
+  integrity sha1-rlIZaAi3NrocDB8kOjBQH6HdgmI=
+
 macos-release@^2.0.0:
   version "2.0.0"
   resolved "https://registry.npmjs.org/macos-release/-/macos-release-2.0.0.tgz#7dddf4caf79001a851eb4fba7fb6034f251276ab"