diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..27e8853
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,118 @@
+# Created by https://www.gitignore.io/api/node,vim,osx,macos,linux
+
+*node_modules
+
+### Node ###
+# Logs
+logs
+*.log
+npm-debug.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules
+jspm_packages
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+
+
+### Vim ###
+# swap
+[._]*.s[a-v][a-z]
+[._]*.sw[a-p]
+[._]s[a-v][a-z]
+[._]sw[a-p]
+# session
+Session.vim
+# temporary
+.netrwhist
+*~
+# auto-generated tag files
+tags
+
+
+### OSX ###
+*.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+# Thumbnails
+._*
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+
+### macOS ###
+# Icon must end with two \r
+# Thumbnails
+# Files that might appear in the root of a volume
+# Directories potentially created on remote AFP share
+
+
+### Linux ###
+
+# temporary files which can be created if a process still has a handle open of a deleted file
+.fuse_hidden*
+
+# KDE directory preferences
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+# .nfs files are created when an open file is removed but is still being accessed
+.nfs*
+
+# End of https://www.gitignore.io/api/node,vim,osx,macos,linux
+l
diff --git a/index.js b/index.js
new file mode 100644
index 0000000..edcd665
--- /dev/null
+++ b/index.js
@@ -0,0 +1,6 @@
+'use strict'
+
+const greet = require('./lib/greet.js');
+
+greet.sayHey('');
+greet.sayBye('');
diff --git a/lib/greet.js b/lib/greet.js
new file mode 100644
index 0000000..bdd1202
--- /dev/null
+++ b/lib/greet.js
@@ -0,0 +1,12 @@
+'use strict'
+
+module.exports = exports = {};
+
+exports.sayHey = function(name) {
+  if (arguments.length === 0) throw new Error('name not provided');
+  return `hey ${name}!`;
+};
+
+exports.sayBye = function(name) {
+  return `see ya later ${name}!`;
+};
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..55210b1
--- /dev/null
+++ b/package.json
@@ -0,0 +1,28 @@
+{
+  "name": "01-modular_patterns_and_testing",
+  "version": "1.0.0",
+  "description": "![CF](https://camo.githubusercontent.com/70edab54bba80edb7493cad3135e9606781cbb6b/687474703a2f2f692e696d6775722e636f6d2f377635415363382e706e67) Lab 01: Modular Patterns & Testing ===",
+  "main": "index.js",
+  "directories": {
+    "test": "test"
+  },
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/sueanyv/01-modular_patterns_and_testing.git"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/sueanyv/01-modular_patterns_and_testing/issues"
+  },
+  "homepage": "https://github.com/sueanyv/01-modular_patterns_and_testing#readme",
+  "devDependencies": {
+    "chai": "^3.5.0",
+    "gulp-mocha": "^4.0.1",
+    "mocha": "^3.2.0"
+  }
+}
diff --git a/test/test.js b/test/test.js
new file mode 100644
index 0000000..7ed4bc8
--- /dev/null
+++ b/test/test.js
@@ -0,0 +1,27 @@
+'use strict';
+
+const greet = require('../lib/greet.js');
+const expect = require('chai').expect;
+
+describe('Great module', function() {
+  describe('#sayHey', function(sayHey) {
+    it('should return hey sugey!', function() {
+      var result = greet.sayHey('sugey');
+      expect(greet).to.have.property('sayHey');
+      expect(result).to.equal('hey sugey!');
+
+    });
+    it('should throw a missing name error', function() {
+      var result = greet.sayHey;
+      expect(result).to.throw('name not provided');
+    });
+  });
+
+  describe('#sayBye', function() {
+    it('should return see ya later sugey!', function() {
+      var result = greet.sayBye('sugey');
+      expect(greet).to.have.property('sayBye');
+      expect(result).to.equal('see ya later sugey!');
+    });
+  });
+});