test folder reorganization

test/app_test.js

@@ -0,0 +1,10 @@
+var request = require('supertest');
+var app = require('../app.js');
+
+describe('GET /', function() {
+  it('should return 200 OK', function(done) {
+    request(app)
+      .get('/')
+      .expect(200, done);
+  });
+});