Add Jest tests for importing/requiring react-on-rails

Author: alexeyr

.github/workflows/main.yml

@@ -154,6 +154,10 @@ jobs:
         run: cd spec/dummy && yalc add react-on-rails
       - name: Install Node modules with Yarn for dummy app
         run: cd spec/dummy && yarn install --no-progress --no-emoji
+      - name: Dummy JS tests
+        run: |
+          cd spec/dummy
+          yarn run test:js
       - name: Install Ruby Gems for package
         run: |
           bundle lock --add-platform 'x86_64-linux'

spec/dummy/package.json

@@ -45,6 +45,7 @@
     "expose-loader": "^1.0.3",
     "file-loader": "^6.2.0",
     "imports-loader": "^1.2.0",
+    "jest": "^29.7.0",
     "react-refresh": "^0.11.0",
     "rescript": "^11.1.4",
     "sass": "^1.43.4",
@@ -68,6 +69,7 @@
     "link-source": "cd ../.. && yarn run build && yalc publish",
     "lint": "cd ../.. && yarn run lint",
     "format": "cd ../.. && yarn run nps format",
+    "test:js": "yarn run jest tests",
     "test": "yarn run build:test && yarn run lint && bin/rspec",
     "build:test": "rm -rf public/webpack/test && yarn build:rescript && RAILS_ENV=test NODE_ENV=test bin/shakapacker",
     "build:dev": "rm -rf public/webpack/development && yarn build:rescript && RAILS_ENV=development NODE_ENV=development bin/shakapacker",

spec/dummy/tests/react-on-rails.import.test.js

@@ -0,0 +1,5 @@
+import ReactOnRails from 'react-on-rails';
+
+test('ReactOnRails', () => {
+  ReactOnRails.register({});
+});

spec/dummy/tests/react-on-rails.require.test.js

@@ -0,0 +1,5 @@
+const ReactOnRails = require('react-on-rails').default;
+
+test('ReactOnRails', () => {
+  ReactOnRails.register({});
+});