fix(ci): Fix false CI failures from forked PRs (magento#230)

* fix(ci): Test CI breakage from forked PRs

* fix(ci): Stop CI patch from running on fork PRs

test: add unit testing for CI script

* fix: undisturb other tests

* fix: clearer and faster tests

* fixup: ci env messes up test

* fix overpopulated env

.circleci/config.yml

@@ -119,7 +119,9 @@ jobs:
           command: 'npm run test:ci && npm run coveralls || true'
       - run:
           name: Patch CircleCI environment to help detect pull requests
-          command: node .circleci/patch_circleci_environment.js >> $BASH_ENV
+          command: chmod u+x scripts/patch_circleci_env && scripts/patch_circleci_env >> $BASH_ENV
+          environment:
+            GITHUB_GRAPHQL_ENDPOINT: https://api.github.com/graphql
       - run:
           name: DangerCI
           command: npm run danger

.eslintrc.js

@@ -0,0 +1,6 @@
+const config = {
+    parser: 'babel-eslint',
+    extends: ['@magento']
+};
+
+module.exports = config;

jest.config.js

@@ -4,10 +4,16 @@ module.exports = {
     projects: [
         'packages/peregrine',
         'packages/pwa-buildpack',
-        'packages/venia-concept'
+        'packages/venia-concept',
+        'scripts'
     ],
     collectCoverage: true,
-    collectCoverageFrom: ['src/**/*.js', '!**/__stories__/**'],
+    collectCoverageFrom: [
+        'scripts/**/*.js',
+        'src/**/*.js',
+        '!**/__stories__/**',
+        '!**/__helpers__/**'
+    ],
     reporters: [
         'default',
         [