+BankCard

Author: Dmitry Ovsyanko

__tests__/isBankCard.js

@@ -1,9 +1,35 @@
-const {isBankCard} = require ('..')
+const {isBankCard, randomBankCard} = require ('..')
+
+const PRE = '2200'
 
 test ('basic', () => {
 
 	expect (isBankCard ('5062821234567892')).toBeUndefined ()
-	expect (() => isBankCard ('5062821734567892')).toThrow ()
+	expect (isBankCard ('5062 8212 3456 7892')).toBeUndefined ()
+	expect (isBankCard (randomBankCard ())).toBeUndefined ()
 
+	expect (() => isBankCard ('5062821734567892')).toThrow ()
+	expect (() => isBankCard ('5062 821234567892')).toThrow ()
+	expect (() => isBankCard ('5062_8212_3456_7892')).toThrow ()
+
+})
+
+test ('rnd', () => {
+
+	const v = randomBankCard ({pre: [PRE]})
+
+	expect (v).toHaveLength (16)
+	expect (v.slice (0, 4)).toBe (PRE)
+	expect (isBankCard (v)).toBeUndefined ()
+
+})
+
+test ('rnd', () => {
+
+	const v = randomBankCard ({pre: [PRE], format: true})
+
+	expect (v).toHaveLength (19)
+	expect (v.slice (0, 4)).toBe (PRE)
+	expect (isBankCard (v)).toBeUndefined ()
 
 })

index.js

@@ -3,7 +3,7 @@ const {OGRN_13, OGRN_15} = require ('./lib/Horner')
 const {INN_10, INN_12_2, INN_12_1} = require ('./lib/INN')
 const SNILS = require ('./lib/SNILS')
 const BankAcct = require ('./lib/BankAcct')
-const Luhn = require ('./lib/Luhn')
+const BankCard = require ('./lib/BankCard')
 const {OKPO_8, OKPO_10} = require ('./lib/OKPO')
 class KPP extends Check {constructor () {super (9)}}
 
@@ -36,9 +36,10 @@ module.exports = {
 	},
 	randomINN12: () => new INN_12_2 ().appendCheckSum (new INN_12_1 ().random ()),
 
-	isBankAcct : (str, bic)    => new BankAcct ().verify (str, bic),
-	randomBankAcct: (bic, opt) => new BankAcct ().random (bic, opt),
+	isBankAcct     : (str, bic) => new BankAcct ().verify (str, bic),
+	randomBankAcct : (bic, opt) => new BankAcct ().random (bic, opt),
 
-	isBankCard : str  => new Luhn (16).verify (str)
+	isBankCard     : str        => new BankCard ().verify (str),
+	randomBankCard : opt        => new BankCard ().random (opt),
 
 }

lib/BankCard.js

@@ -0,0 +1,32 @@
+const Luhn = require ('./Luhn')
+const CH_SPACE  = ' '.charCodeAt (0)
+
+module.exports = class extends Luhn {
+
+	constructor () {
+
+		super (16)
+
+	}
+
+	verify (str) {
+
+		if (str.length !== 19) return super.verify (str)
+
+		for (const pos of [4, 9, 14])
+			if (str.charCodeAt (pos) !== CH_SPACE)
+				this.raise ('Wrong format', {code: 'format', pos})
+
+		super.verify (str.slice (0, 4) + str.slice (5, 9) + str.slice (10, 14) + str.slice (15))
+
+	}
+
+	random (options = {}) {
+
+		const result = super.random (options)
+
+		return !options.format ? result : result.slice (0, 4) + ' ' + result.slice (4, 8) + ' ' + result.slice (8, 12) + ' ' + result.slice (12)
+
+	}
+	
+}

package.json

@@ -29,7 +29,8 @@
     "ИНН",
     "КПП",
     "ОГРН",
-    "СНИЛС"
+    "СНИЛС",
+    "ОКПО"
   ],
   "author": "Dmitry Ovsyanko",
   "license": "MIT",