Use browser docker image and parallelise browser start properly

.gitlab-ci.yml

 default:
-  image: node:12
+  image: circleci/node:12-browsers
 
 stages:
   - fetch
@@ -83,8 +83,7 @@ chrome_test:
   dependencies:
     - dev_node_install
   script:
-    - apt-get update -qq && apt-get install -qq chromium
-    - npm run test-e2e:chromium
+    - npm run test-e2e
 
 deploy:
   stage: deploy

__e2e_tests__/run

-#!/bin/bash
-set -e
-set -x
-
-TEST1="peer1.e2e.js"
-TEST2="peer2.e2e.js"
-
-COMMAND="npx testcafe $1"
-
-$COMMAND $TEST1 & $COMMAND $TEST2
\ No newline at end of file

package.json

@@ -13,8 +13,9 @@
     "test": "jest --testPathIgnorePatterns src/liowebrtc src/rtcpeerconnection src/signalbuddy",
     "test-changed": "jest --only-changed --testPathIgnorePatterns src/liowebrtc src/rtcpeerconnection src/signalbuddy",
     "test-coverage": "jest --coverage --testPathIgnorePatterns src/liowebrtc src/rtcpeerconnection src/signalbuddy",
-    "test-e2e": "cd __e2e_tests__ ; ./run",
-    "test-e2e:chromium": "cd __e2e_tests__ ; ./run chromium:headless",
+    "test-e2e:peer1": "testcafe chromium:headless __e2e_tests__/peer1.e2e.js",
+    "test-e2e:peer2": "testcafe chromium:headless __e2e_tests__/peer2.e2e.js",
+    "test-e2e": "run-p test-e2e:*",
     "lint": "jshint .",
     "validate": "npm ls"
   },
@@ -34,6 +35,7 @@
     "eslint": "^6.5.1",
     "eslint-plugin-testcafe": "^0.2.1",
     "jest": "^24.9.0",
+    "npm-run-all": "^4.1.5",
     "prettier": "^1.18.2",
     "testcafe": "^1.5.0",
     "webpack": "^4.41.0",