test: add a babel example

Makefile

@@ -5,7 +5,8 @@ REQUIRED = --require should --require should-http
 TESTS = test/application/* \
 	test/context/* \
 	test/request/* \
-	test/response/*
+	test/response/* \
+	test/babel/index.js
 
 lint:
 	@./node_modules/.bin/eslint lib test

package.json

@@ -42,8 +42,9 @@
     "vary": "^1.0.0"
   },
   "devDependencies": {
-    "babel": "^5.0.0",
+    "babel-core": "^6.0.20",
     "babel-eslint": "^4.1.3",
+    "babel-preset-stage-3": "^6.0.15",
     "eslint": "^1.6.0",
     "eslint-config-standard": "^4.4.0",
     "eslint-plugin-standard": "^1.3.1",

test/babel/.babelrc

@@ -0,0 +1,3 @@
+{
+  "presets": ["stage-3"]
+}

test/babel/_test.js

@@ -0,0 +1,42 @@
+'use strict';
+
+const request = require('supertest');
+const Koa = require('../..');
+
+describe('require("babel-core/register")', () => {
+  describe('app.use(fn)', () => {
+    it('should compose middleware w/ async functions', done => {
+      const app = new Koa();
+      const calls = [];
+
+      app.use(async function (ctx, next){
+        calls.push(1);
+        await next();
+        calls.push(6);
+      });
+
+      app.use(async function (ctx, next){
+        calls.push(2);
+        await next();
+        calls.push(5);
+      });
+
+      app.use(async function (ctx, next){
+        calls.push(3);
+        await next();
+        calls.push(4);
+      });
+
+      const server = app.listen();
+
+      request(server)
+        .get('/')
+        .expect(404)
+        .end(err => {
+          if (err) return done(err);
+          calls.should.eql([1, 2, 3, 4, 5, 6]);
+          done();
+        });
+    });
+  });
+});

test/babel/index.js

@@ -0,0 +1,6 @@
+'ues strict';
+
+// http://babeljs.io/docs/setup/#babel_register
+
+require('babel-core/register');
+require('./_test.js');