diff --git a/blog/app.js b/blog/app.js
index ba6d366..06080ac 100644
--- a/blog/app.js
+++ b/blog/app.js
@@ -8,7 +8,7 @@ var logger = require('koa-logger');
 var route = require('koa-route');
 var parse = require('co-body');
 var koa = require('koa');
-var app = koa();
+var app = module.exports = koa();
 
 // "database"
 
@@ -67,5 +67,5 @@ function *create() {
 
 // listen
 
-app.listen(3000);
-console.log('listening on port 3000');
\ No newline at end of file
+if (!module.parent) app.listen(3000);
+
diff --git a/blog/test.js b/blog/test.js
new file mode 100644
index 0000000..2cfcb62
--- /dev/null
+++ b/blog/test.js
@@ -0,0 +1,56 @@
+var app = require('./app');
+var request = require('supertest').agent(app.listen());
+
+describe('Blog', function(){
+  describe('GET /',function(){
+    it('should see title "Posts"', function(done){
+      request
+      .get('/')
+      .expect(200, function(err, res){
+        if (err) return done(err);
+
+        res.should.be.html;
+        res.text.should.include('<title>Posts</title>');
+        done();
+      });
+    });
+    it('should see 0 post', function(done){
+      request
+      .get('/')
+      .expect(200, function(err, res){
+        if (err) return done(err);
+
+        res.should.be.html;
+        res.text.should.include('<p>You have <strong>0</strong> posts!</p>');
+        done();
+      });
+    });
+  });
+  describe('POST /post/new',function(){
+    it('should create post and redirect to /', function(done){
+      request
+      .post('/post')
+      .send({title: 'Title', body: 'Contents'})
+      .end(function(err, res){
+        if (err) return done(err);
+
+        res.header.location.should.be.equal('/')
+        done();
+      });
+    });
+  });
+  describe('GET /post/0',function(){
+    it('should see post', function(done){
+      request
+      .get('/post/0')
+      .expect(200, function(err, res){
+        if (err) return done(err);
+
+        res.should.be.html;
+        res.text.should.include('<h1>Title</h1>')
+        res.text.should.include('<p>Contents</p>')
+        done();
+      });
+    });
+  });
+});
diff --git a/package.json b/package.json
index 3f1aa16..59944fd 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
     "co-body": "^1.0.0",
     "co-busboy": "^1.0.2",
     "co-fs": "^1.2.0",
-    "co-views": "^0.2.0",
+    "co-views": "^2.1.0",
     "ejs": "^1.0.0",
     "koa": "^1.0.0",
     "koa-basic-auth": "^1.1.1",