add gulpfile and change assert to expect

lab-noah/gulpfile.js

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+'use strict';
+
+const gulp = require('gulp');
+const eslint = require('gulp-eslint');
+const mocha = require('gulp-mocha');
+
+gulp.task('lint', function(){
+  return gulp.src(['**/*.js', '!node_modules'])
+  .pipe(eslint())
+  .pipe(eslint.format())
+  .pipe(eslint.failAfterError());
+});
+
+gulp.task('test', function(){
+  gulp.src('./test/*-test.js', {read: false})
+  .pipe(mocha({reporter: 'nyan'}));
+});
+
+gulp.task('dev', function(){
+  gulp.watch(['**/*.js', '!node_modules/**'], ['lint', 'test']);
+});
+
+gulp.task('default', ['dev']);

lab-noah/index.js

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+'use strict';
+
+const greet = require('./lib/greet.js');
+
+greet.sayHey();
+greet.sayBye();

lab-noah/lib/greet.js

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+'use strict';
+
+module.exports = exports = {};
+
+exports.sayHey = function(name){
+  if(arguments.length === 0) throw new Error('no name entered');
+  return `hey ${name}`;
+};
+
+exports.sayBye = function() {
+  return 'see ya later';
+};

lab-noah/package.json

@@ -0,0 +1,22 @@
+{
+  "name": "demo-1",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "directories": {
+    "test": "test"
+  },
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "devDependencies": {
+    "chai": "^3.5.0",
+    "gulp": "^3.9.1",
+    "gulp-eslint": "^3.0.1",
+    "gulp-mocha": "^3.0.1",
+    "mocha": "^3.2.0"
+  }
+}

lab-noah/test/greet-test.js

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+'use strict';
+
+const greet = require('../lib/greet.js');
+const expect = require('chai').expect;
+
+describe('Greet Module', function(){
+  describe('#sayHey',function(){
+    it('should return hey noah',function(){
+      var result = greet.sayHey('noah');
+      expect(greet).to.have.property('sayHey');
+      expect(result).to.equal('hey noah');
+    });
+    it('should have a missing name error message', function(){
+      var result = greet.sayHey;
+      expect(result).to.throw(Error);
+    });
+  });
+  describe('#sayBye',function(){
+    it('should return see ya later', function(){
+      var result = greet.sayBye();
+      expect(result).to.equal('see ya later');
+    });
+  });
+});