chore(tools): tests in a docker container

Dockerfile.tests

@@ -0,0 +1,2 @@
+FROM node:lts
+RUN apt-get update && apt-get install -y --no-install-recommends gconf-service libasound2 libatk1.0-0 libc6 libcairo2 libcups2 libdbus-1-3 libexpat1 libfontconfig1 libgcc1 libgconf-2-4 libgdk-pixbuf2.0-0 libglib2.0-0 libgtk-3-0 libnspr4 libpango-1.0-0 libpangocairo-1.0-0 libstdc++6 libx11-6 libx11-xcb1 libxcb1 libxcomposite1 libxcursor1 libxdamage1 libxext6 libxfixes3 libxi6 libxrandr2 libxrender1 libxss1 libxtst6 ca-certificates fonts-liberation libappindicator1 libnss3 lsb-release xdg-utils wget

curriculum/test/test-challenges.js

@@ -108,8 +108,15 @@ async function runTests() {
         logLevel: 0
       });
       browser = await puppeteer.launch({
-        args: ['--no-sandbox']
-        // dumpio: true
+        args: [
+          // Required for Docker version of Puppeteer
+          '--no-sandbox',
+          '--disable-setuid-sandbox',
+          // This will write shared memory files into /tmp instead of /dev/shm,
+          // because Docker’s default for /dev/shm is 64MB
+          '--disable-dev-shm-usage'
+          // dumpio: true
+        ]
       });
       global.Worker = createPseudoWorker(await newPageContext(browser));
       page = await newPageContext(browser);

docker-compose.tests.yml

@@ -0,0 +1,25 @@
+# Docker Compose file for FreeCodeCamp
+#
+# Before run tests, bootstrap project with commands from a docker-compose.yml
+#
+# Note, first run takes a long time.
+#
+# Run with:
+#   npm run docker:test -- -c "npm run test"
+# or
+#   npm run docker:test -- -c "npm run test:curriculum"
+#   npm run docker:test -- -c "npm run test:client"
+#   npm run docker:test -- -c "npm run test:server"
+#
+# If need to test one challenge:
+#   npm run docker:test -- -c "cd curriculum && npm run test -f 'Title of Challenge'"
+#
+version: '3'
+services:
+  tests:
+    build:
+      context: .
+      dockerfile: Dockerfile.tests
+    volumes:
+      - .:/app
+    working_dir: /app

package.json

@@ -12,7 +12,7 @@
     "docker:install": "npm run docker:bash -- -c \"npm install\"",
     "docker:install2": "docker-compose run --rm -u root freecodecamp bash -c \"npm install -g npm@5.7.1 && su node -c 'npm install'\"",
     "docker:seed": "npm run docker:bash -- -c \"npm run seed\"",
-    "docker:test": "npm run docker:bash -- -c \"npm run test\"",
+    "docker:test": "docker-compose -f docker-compose.tests.yml run --rm tests bash",
     "ensure-env": "cross-env DEBUG=fcc:* node ./tools/scripts/ensure-env.js",
     "format": "npm run lint -- --fix",
     "hooks:install": "node node_modules/husky/husky.js install",