chore: Make QUnit tests pass on TravisCI.

Author: amiller-gh

.travis.yml

@@ -1,14 +1,19 @@
 if: tag IS blank
 git:
   depth: 1
-sudo: false
+sudo: required
 language: node_js
+
 node_js:
   - "8"
   - "9"
+
 env:
   - CXX=g++-4.8
 
+addons:
+    chrome: stable
+
 before_install:
   - npm install -g [email protected] yarn
   - ./scripts/checkout-opticss.sh ../opticss

packages/@css-blocks/playground/package.json

@@ -1,7 +1,7 @@
 {
   "name": "@css-blocks/playground",
   "version": "0.0.0",
-  "description": "A brand new Glimmer app.",
+  "description": "The CSS Blocks in-browser playground.",
   "directories": {
     "doc": "doc",
     "test": "tests"

packages/@css-blocks/playground/src/ui/index.html

@@ -4,7 +4,7 @@
     <meta charset="utf-8">
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <title>CSS Blocks</title>
-    <meta name="description" content="">
+    <meta name="description" content="The CSS Blocks in-browser playground.">
     <meta name="viewport" content="width=device-width, initial-scale=1">
 
     {{content-for "head"}}

packages/@css-blocks/playground/testem.json

@@ -3,5 +3,15 @@
   "src_files": ["src/**/*"],
   "serve_files": ["index.js"],
   "disable_watching": true,
-  "launch_in_ci": ["Firefox", "Chrome"]
-}
+  "launch_in_ci": ["Chrome"],
+  "browser_args": {
+    "Chrome": [
+      "--headless",
+      "--disable-gpu",
+      "--remote-debugging-port=9222",
+      "--remote-debugging-address=0.0.0.0",
+      "--no-sandbox",
+      "--user-data-dir=/tmp"
+    ]
+  }
+}