diff --git a/database.db b/database.db
index 3f8ea29..a03ec12 100644
Binary files a/database.db and b/database.db differ
diff --git a/src/models/friend.js b/src/models/friend.js
new file mode 100644
index 0000000..eec5dfe
--- /dev/null
+++ b/src/models/friend.js
@@ -0,0 +1,23 @@
+'use strict';
+
+module.exports = function(sequelize, DataTypes){
+  var Friend = sequelize.define('Friend', {
+    name: 
+    {
+      type: DataTypes.STRING
+    },
+    fbid:
+    {
+      type: DataTypes.STRING
+    },
+    email: 
+    {
+      type: DataTypes.STRING,
+      allowNull: true
+    },
+  }, {
+    timestamps: false
+  });
+
+  return Friend;
+};
\ No newline at end of file
diff --git a/src/models/post.js b/src/models/post.js
index 9f437cf..2db7c7f 100644
--- a/src/models/post.js
+++ b/src/models/post.js
@@ -4,6 +4,7 @@ module.exports = (sequelize, DataTypes) => {
   var Post = sequelize.define('Post', {
     title: DataTypes.STRING,
     desc: DataTypes.STRING,
+    price: DataTypes.INTEGER,
   }, {
     classMethods: {
       associate: (models) => {
diff --git a/test/unit/facebook/helper.test.js b/test/unit/facebook/helper.test.js
index 6856c56..5149180 100644
--- a/test/unit/facebook/helper.test.js
+++ b/test/unit/facebook/helper.test.js
@@ -1,39 +1,104 @@
 import FacebookHelper from '../../../src/facebook/helper.js'
+import task1_initModel from '../../../src/database/task1';
 
-describe('facebook-helper', () => {
+describe.only('facebook-helper', () => {
   let facebookHelper = null;
+  let models = null;
+  let friends = null;
+  let t = null;
+  
 
-  before((done) => {
-    let userId = "";
-    let token = "";
-    facebookHelper = new FacebookHelper({userId, token});
-    console.log(facebookHelper);
+  before(async (done) => {
+    let userId = "556732901096680";
+    let token = "EAACEdEose0cBAD2CRsMLVQNFUN0mCbOkrwJDC25F9ylBEZCPKZBj0NuuLRpF82MI03AjQg4cPdBC3l3ZBkBmMvdPz2Pv4MZAksghZAtv5p2NDfgloUX3L7dt7OjDuthG9vzG7yRZA9i8fxxXfoC5MT4W7WlAxoz7amLV0imIxRFoHFy2WVGukq7wt1KZAbQgFSCDiji6k56SgZDZD";
+    models = await task1_initModel();
+    facebookHelper = await new FacebookHelper({userId, token});
     done();
   });
 
-  it("get friends list", async (done) => {
-    try {
-      let friends = await facebookHelper.getFriends();
-      console.log("friends", friends);
-      (friends != null).should.be.true;
-      friends.should.be.Array;
-      friends[0].should.have.keys("name", "id");
+  it("get friends list", async (done) => 
+  {
+    try 
+    {
+      friends = await facebookHelper.getFriends();
+      let l = friends.length;
+      var i;
+      for (i = 0; i < l; i++)
+      {
+        await models.Friend.create
+        (
+          {
+            name: friends[i].name,
+            fbid: friends[i].id,
+            email: 'asd@gmail.com'
+          }
+        );
+      }
+      t = await models.Friend.findAll();
+      console.log(t[0].name , t[0].fbid , t[0].email);
       done();
-    } catch (e) {
+    } 
+    catch (e) 
+    {
       done(e);
     }
   });
+  it("get all friends", async (done) => 
+  {
+      try
+      {
+        t = await models.Friend.findAll();
+        t.length.should.be.equal(friends.length);
+        done();
+      }
+      catch(e)
+      {
+        done(e);
+      }
+    });
+    it("update email", async (done) => 
+    {
+      try
+      {
+        let t2 = friends[1].id;
+        let data = await models.Friend.findOne( {where: { fbid: t2 } } );
+        data.email = 'hellojs@trunk.studio';
+        let result = await data.save();
+        console.log(result.name , result.id , result.email);
+        result.email.should.equal('hellojs@trunk.studio');
+        done();
+      }
+      catch(e)
+      {
+        done(e);
+      }
+    });
+
+    it("delete friend", async (done) => 
+    {
+      try{
+        let del = await models.Friend.findOne
+        (
+          {
+            where:{email:'hellojs@trunk.studio'}
+          }
+        );
+        await del.destroy();
+
+        let result = await models.Friend.findOne
+        (
+          {
+            where:{email:'hellojs@turnk.studio'}
+          }
+        );
 
-  it.skip("publish post", async (done) => {
-    try {
-      let post = {
-        message: 'test facebook post api'
+        (result === null ).should.be.true;
+
+        done();
       }
-      let result = await facebookHelper.publishPost(post);
-      console.log("result", result);
-      done();
-    } catch (e) {
-      done(e);
-    }
-  });
-});
+      catch(e)
+      {
+        done(e);
+      }
+    });
+});
\ No newline at end of file