random +options.pre

Author: Dmitry Ovsyanko

__tests__/isKPP.js

@@ -8,7 +8,9 @@ test ('basic', () => {
 	expect (() => isKPP ('7714010?1')).toThrow ()
 
 	expect (isKPP ('771401001')).toBeUndefined ()
+		
+	expect (isKPP (randomKPP ())).toBeUndefined ()
+	expect (randomKPP ({pre: ['77', '50']})).toMatch (/^(50|77)/)
 
-	for (let i = 0; i < 1000; i ++) expect (isKPP (randomKPP ())).toBeUndefined ()
 
 })

index.js

@@ -8,25 +8,25 @@ class KPP extends Check {constructor () {super (9)}}
 module.exports = {
 
 	isSNILS     : str     => new SNILS ().verify (str),
-	randomSNILS : options => new SNILS ().random (options),
+	randomSNILS : opt     => new SNILS ().random (opt),
 
 	isOGRN15    : str     => new OGRN_15 ().verify (str),
-	randomOGRN15: ()      => new OGRN_15 ().random (),
+	randomOGRN15: opt     => new OGRN_15 ().random (opt),
 
 	isOGRN13    : str     => new OGRN_13 ().verify (str),
-	randomOGRN13: ()      => new OGRN_13 ().random (),			
+	randomOGRN13: opt     => new OGRN_13 ().random (opt),
 
 	isINN10     : str     => new INN_10 ().verify (str),
-	randomINN10 : ()      => new INN_10 ().random (),
+	randomINN10 : opt     => new INN_10 ().random (opt),
 
 	isKPP       : str     => new KPP ().verify (str),
-	randomKPP   : ()      => new KPP ().randomValue (),
+	randomKPP   : opt     => new KPP ().randomValue (opt),
 
 	isOKPO8    : str      => new OKPO_8 ().verify (str),
-	randomOKPO8: ()       => new OKPO_8 ().random (),
+	randomOKPO8: opt      => new OKPO_8 ().random (opt),
 
 	isOKPO10    : str     => new OKPO_10 ().verify (str),
-	randomOKPO10: ()      => new OKPO_10 ().random (),
+	randomOKPO10: opt     => new OKPO_10 ().random (opt),
 
 	isINN12: str => {
 		new INN_12_1 ().verify (str.slice (0, 11))

lib/Check.js

@@ -41,13 +41,15 @@ module.exports = class {
 
 	}
 
-	randomValue () {
+	randomValue (options = {}) {
 
-		const {valueLength} = this, b = Buffer.alloc (this.valueLength)
+		const {pre} = options, prefix = pre ? pre [Math.floor (pre.length * Math.random ())] : ''
+
+		const length = this.valueLength - prefix.length, b = Buffer.alloc (length)
 
-		for (let i = 0; i < valueLength; i ++) b [i] = 48 + Math.floor (10 * Math.random ())
+		for (let i = 0; i < length; i ++) b [i] = 48 + Math.floor (10 * Math.random ())
 
-		return b.toString ()
+		return prefix + b.toString ()
 
 	}
 
@@ -95,9 +97,9 @@ module.exports = class {
 
 	}
 
-	random () {
+	random (options = {}) {
 
-		const v = this.randomValue ()
+		const v = this.randomValue (options)
 
 		return this.appendCheckSum (v)
 

lib/OKPO.js

@@ -29,11 +29,11 @@ class OKPO extends ScalarProduct {
 
 	}
 
-	random () {
+	random (options) {
 
 		while (true) {
 
-			const v = super.random ()
+			const v = super.random (options)
 
 			if (v.charCodeAt (0) !== CH_ZERO) return v
 

lib/SNILS.js

@@ -26,7 +26,7 @@ module.exports = class extends ScalarProduct {
 
 	random (options = {}) {
 
-		const result = super.random ()
+		const result = super.random (options)
 
 		return !options.format ? result : result.slice (0, 3) + '-' + result.slice (3, 6) + '-' + result.slice (6, 9) + ' ' + result.slice (9)
 

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "ru-codes",
-  "version": "1.0.3",
+  "version": "1.0.4",
   "description": "ИНН, КПП и т. п.",
   "main": "index.js",
   "files": ["/lib", "/badges"],