diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..fd4f2b0
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+node_modules
+.DS_Store
diff --git a/fizzBuzz.js b/fizzBuzz.js
new file mode 100644
index 0000000..cd46985
--- /dev/null
+++ b/fizzBuzz.js
@@ -0,0 +1,10 @@
+let methods = {}
+
+methods.convert = function (num) {
+  let Buzz = num%5
+  let Fizz = num%3
+
+  return !Fizz ? (!Buzz ? 'FizzBuzz' : 'Fizz') : !Buzz ? 'Buzz' : ''
+}
+
+module.exports = methods
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..813980d
--- /dev/null
+++ b/package.json
@@ -0,0 +1,26 @@
+{
+  "name": "fizzbuzz-tdd",
+  "version": "1.0.0",
+  "description": "",
+  "main": "fizzBuzz.js",
+  "directories": {
+    "test": "test"
+  },
+  "dependencies": {
+    "chai": "^3.5.0"
+  },
+  "devDependencies": {},
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/mfpebrizal/fizzbuzz-tdd.git"
+  },
+  "author": "",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/mfpebrizal/fizzbuzz-tdd/issues"
+  },
+  "homepage": "https://github.com/mfpebrizal/fizzbuzz-tdd#readme"
+}
diff --git a/test/fizzBuzz-test.js b/test/fizzBuzz-test.js
new file mode 100644
index 0000000..1389562
--- /dev/null
+++ b/test/fizzBuzz-test.js
@@ -0,0 +1,33 @@
+const chai = require('chai');
+const should = chai.should()
+const fizzBuzz = require('../fizzBuzz');
+
+describe('FizzBuzz', function () {
+  it('should return "Fizz"',function () {
+    fizzBuzz.convert(3).should.equal('Fizz')
+    fizzBuzz.convert(9).should.equal('Fizz')
+    fizzBuzz.convert(12).should.equal('Fizz')
+    fizzBuzz.convert(21).should.equal('Fizz')
+  })
+
+  it('should return "Buzz"',function () {
+    fizzBuzz.convert(25).should.equal('Buzz')
+    fizzBuzz.convert(5).should.equal('Buzz')
+    fizzBuzz.convert(10).should.equal('Buzz')
+    fizzBuzz.convert(125).should.equal('Buzz')
+  })
+
+  it('should return "FizzBuzz"',function () {
+    fizzBuzz.convert(15).should.equal('FizzBuzz')
+    fizzBuzz.convert(60).should.equal('FizzBuzz')
+    fizzBuzz.convert(105).should.equal('FizzBuzz')
+    fizzBuzz.convert(90).should.equal('FizzBuzz')
+  })
+
+  it('should return nothing',function () {
+    fizzBuzz.convert(4).should.equal('')
+    fizzBuzz.convert(28).should.equal('')
+    fizzBuzz.convert(2).should.equal('')
+    fizzBuzz.convert(16).should.equal('')
+  })
+})