fix naive global ReactOnRails references (#569)

This fixes some test running issues. This should not change the current production code.

.eslintrc

@@ -1,6 +1,4 @@
 ---
-parser: babel-eslint
-
 extends: eslint-config-shakacode
 
 plugins:

.jscsrc

@@ -5,6 +5,7 @@
     ".jsx"
   ],
   "excludeFiles": [
+    "**/.c9/**",
     "**/build/**",
     "**/node_modules/**",
     "**/assets/webpack/**",

node_package/src/clientStartup.js

@@ -8,12 +8,25 @@ import isRouterResult from './isRouterResult';
 const REACT_ON_RAILS_COMPONENT_CLASS_NAME = 'js-react-on-rails-component';
 const REACT_ON_RAILS_STORE_CLASS_NAME = 'js-react-on-rails-store';
 
+function findContext() {
+  if (typeof window.ReactOnRails !== 'undefined') {
+    return window;
+  } else if (typeof ReactOnRails !== 'undefined') {
+    return global;
+  }
+
+  throw new Error(`\
+ReactOnRails is undefined in both global and window namespaces.
+  `);
+}
+
 function debugTurbolinks(...msg) {
   if (!window) {
     return;
   }
 
-  if (ReactOnRails.option('traceTurbolinks')) {
+  const context = findContext();
+  if (context.ReactOnRails.option('traceTurbolinks')) {
     console.log('TURBO:', ...msg);
   }
 }
@@ -34,11 +47,12 @@ function forEachComponent(fn, railsContext) {
 }
 
 function initializeStore(el, railsContext) {
+  const context = findContext();
   const name = el.getAttribute('data-store-name');
   const props = JSON.parse(el.getAttribute('data-props'));
-  const storeGenerator = ReactOnRails.getStoreGenerator(name);
+  const storeGenerator = context.ReactOnRails.getStoreGenerator(name);
   const store = storeGenerator(props, railsContext);
-  ReactOnRails.setStore(name, store);
+  context.ReactOnRails.setStore(name, store);
 }
 
 function forEachStore(railsContext) {

node_package/tests/Authenticity.test.js

@@ -1,5 +1,4 @@
 import test from 'tape';
-
 import ReactOnRails from '../src/ReactOnRails.js';
 
 test('authenticityToken and authenticityHeaders', (assert) => {

node_package/tests/ReactOnRails.test.js

@@ -6,16 +6,9 @@
 import test from 'tape';
 import { createStore } from 'redux';
 import React from 'react';
-import { canUseDOM } from 'fbjs/lib/ExecutionEnvironment';
-import JsDom from 'jsdom';
 
 import ReactOnRails from '../src/ReactOnRails';
 
-if (!canUseDOM) {
-  global.document = JsDom.jsdom('<div id="root"></div>');
-  global.window = document.defaultView;
-}
-
 test('ReactOnRails render returns a virtual DOM element for component', (assert) => {
   assert.plan(1);
   const R1 = React.createClass({

node_package/tests/helpers/test_helper.js

@@ -0,0 +1,10 @@
+import JsDom from 'jsdom';
+
+global.document = JsDom.jsdom('<div id="root"></div>');
+global.window = document.defaultView;
+
+Object.keys(window).forEach((key) => {
+  if (!(key in global)) {
+    global[key] = window[key];
+  }
+});

package.json

@@ -47,7 +47,7 @@
     "node_package/lib"
   ],
   "scripts": {
-    "test": "babel-tape-runner node_package/tests/*.js | tap-spec",
+    "test": "babel-tape-runner -r node_package/tests/helpers/test_helper.js node_package/tests/*.js | tap-spec",
     "clean": "rm -rf node_package/lib",
     "prepublish": "npm run build",
     "babel": "babel --out-dir node_package/lib node_package/src",