Merge pull request #120 from mrstebo/feature/crypto

Added the Crypto faker.

README.md

@@ -27,6 +27,7 @@ Contents
   - [Faker.Commerce](doc/commerce.md)
   - [Faker.Company](doc/company.md)
   - [Faker.Compass](doc/compass.md)
+  - [Faker.Crypto](doc/crypto.md)
   - [Faker.Date](doc/date.md)
   - [Faker.Demographic](doc/demographic.md)
   - [Faker.DragonBall](doc/dragon_ball.md)

doc/crypto.md

@@ -0,0 +1,9 @@
+# Faker.Crypto
+
+```js
+Faker.Crypto.md5 //=> "6b5ed240042e8a65c55ddb826c3408e6"
+
+Faker.Crypto.sha1 //=> "4e99e31c51eef8b2d290e709f757f92e558a503f"
+
+Faker.Crypto.sha256 //=> "51e4dbb424cd9db1ec5fb989514f2a35652ececef33f21c8dd1fd61bb8e3929d"
+```

src/faker.js

@@ -15,6 +15,7 @@ import * as Color from './faker/color';
 import * as Commerce from './faker/commerce';
 import * as Company from './faker/company';
 import * as Compass from './faker/compass';
+import * as Crypto from './faker/crypto';
 import * as Date from './faker/date';
 import * as Demographic from './faker/demographic';
 import * as DragonBall from './faker/dragon-ball';
@@ -69,6 +70,7 @@ module.exports = {
   Commerce,
   Company,
   Compass,
+  Crypto,
   Date,
   Demographic,
   DragonBall,

src/faker/crypto.js

@@ -0,0 +1,33 @@
+import { itemFromCollection } from '../utils/random';
+import crypto from 'crypto';
+
+// 0-9, a-z
+const CHARACTERS = [...Array(10).keys()].concat([...Array(26).keys()].map(i => String.fromCharCode(97+i)));
+
+export function md5() {
+  const hash = crypto.createHash('md5');
+  hash.update(characters(255));
+  return hash.digest('hex');
+}
+
+export function sha1() {
+  const hash = crypto.createHash('sha1');
+  hash.update(characters(255));
+  return hash.digest('hex');
+}
+
+export function sha256() {
+  const hash = crypto.createHash('sha256');
+  hash.update(characters(255));
+  return hash.digest('hex');
+}
+
+function characters(charCount) {
+  return [...Array(resolveNumber(charCount)).keys()]
+    .map(_ => itemFromCollection(CHARACTERS))
+    .join('');
+}
+
+function resolveNumber(n) {
+  return parseInt(n) < 0 ? 0 : parseInt(n);
+}

test/faker.spec.js

@@ -109,6 +109,12 @@ describe('#Faker', () => {
     });
   });
 
+  describe('#Crypto', () => {
+    it('should be an object', () => {
+      expect(Faker.Crypto).to.be.a('object');
+    });
+  });
+
   describe('#Date', () => {
     it('should be an object', () => {
       expect(Faker.Date).to.be.a('object');

test/faker/crypto.spec.js

@@ -0,0 +1,29 @@
+'use strict';
+const expect = require('chai').expect;
+const Crypto = require('../../src/faker/crypto');
+
+describe('Crypto', () => {
+  describe('#md5', () => {
+    it('should return a md5', () => {
+      [...Array(100).keys()].forEach(_ => {
+        expect(Crypto.md5()).to.match(/^[0-9a-f]+$/);
+      });
+    });
+  });
+
+  describe('#sha1', () => {
+    it('should return a sha1', () => {
+      [...Array(100).keys()].forEach(_ => {
+        expect(Crypto.sha1()).to.match(/^[0-9a-f]+$/);
+      });
+    });
+  });
+
+  describe('#sha256', () => {
+    it('should return a sha256', () => {
+      [...Array(100).keys()].forEach(_ => {
+        expect(Crypto.sha256()).to.match(/^[0-9a-f]+$/);
+      });
+    });
+  });
+});