test-cases: require() necessary test dependencies if running on NodeJS

package.json

@@ -41,6 +41,7 @@
 	],
 	"main": "papaparse.js",
 	"devDependencies": {
+		"chai": "^3.0.0",
 		"connect": "^3.3.3",
 		"grunt": "^0.4.5",
 		"grunt-contrib-uglify": "^0.6.0",
@@ -53,7 +54,7 @@
 	"scripts": {
 		"test-browser": "node tests/test.js",
 		"test-phantomjs": "node tests/test.js --phantomjs",
-		"test-node": "mocha tests/node-tests.js",
+		"test-node": "mocha tests/node-tests.js tests/test-cases.js",
 		"test": "npm run test-node && npm run test-phantomjs"
 	}
 }

tests/test-cases.js

@@ -1,3 +1,8 @@
+if (typeof module !== 'undefined' && module.exports) {
+	var chai = require('chai');
+	var Papa = require('../papaparse.js');
+}
+
 var assert = chai.assert;
 
 var RECORD_SEP = String.fromCharCode(30);