Simple Sequilize validation

javascript/mocha/.gitignore

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+node_modules

javascript/mocha/calculator.js

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+module.exports.add = function(input){
+    return 0;
+}

javascript/mocha/package.json

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+{
+  "name": "calc",
+  "version": "1.0.0",
+  "description": "setup for the calculator kata",
+  "main": "index.js",
+  "scripts": {
+    "test": "mocha",
+    "testw": "mocha -w"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/aheld/code-kata.git"
+  },
+  "author": "",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/aheld/code-kata/issues"
+  },
+  "homepage": "https://github.com/aheld/code-kata#readme",
+  "devDependencies": {
+    "chai": "^4.1.2",
+    "mocha": "^5.0.1"
+  },
+  "dependencies": {
+    "eslint": "^4.17.0",
+    "sequelize": "^4.33.4",
+    "sqlite3": "^3.1.13"
+  }
+}

javascript/mocha/test.js

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+var should = require('chai').should();
+var assert = require('chai').assert;
+
+var calc = require('./calculator.js');
+
+describe('Calculator', function() {
+  describe('#add', function() {
+    it('should return -1 when the value is not present', function() {
+      calc.add('').should.equal(0);
+    });
+  });
+});

javascript/mocha/test_model.js

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+const Sequelize = require('sequelize');
+const sequelize = new Sequelize('database', 'username', 'password', {
+  host: 'localhost',
+  dialect: 'sqlite',
+
+  pool: {
+    max: 5,
+    min: 0,
+    acquire: 30000,
+    idle: 10000
+  },
+
+  // SQLite only
+  storage: './database.sqlite'
+});
+
+const User = sequelize.define('user', {
+    firstName: {
+      type: Sequelize.STRING
+    },
+    lastName: {
+      type: Sequelize.STRING,
+      allowNull: false,
+      defaultValue: '',
+      validate: {len: [2,50] } }
+  });
+
+
+
+var should = require('chai').should();
+
+describe('User', function() {
+  describe('#create', function() {
+    it('should validate if valid', function(done) {
+        User.sync({force: true}).then(() => {
+            User.create({
+              firstName: 'John',
+              lastName: 'Hancock'
+            });
+            done();
+          });
+    });
+
+    it('should throw a validation error if not valid', function(done) {
+        User.sync({force: true}).then(() => {
+            User.create({
+              firstName: 'John',
+              lastName: ''
+            }).then(function(x) {
+                x.should.be.a('Error');
+                done();
+            }).catch( function (e) { 
+                e.should.be.a('Error');
+                done(); 
+            });
+
+          });
+    });
+
+  });
+});