Merge branch 'creditCard' of https://github.com/zpiman/faker.js

30 files changed, 374 insertions, 59 deletions

diff --git a/lib/finance.js b/lib/finance.js
index 41cae3b1..88a992f3 100644
--- a/lib/finance.js
+++ b/lib/finance.js
@@ -148,6 +148,52 @@ var Finance = function (faker) {
       address += faker.random.alphaNumeric().toUpperCase();
 
     return address;
+  }
+
+  /**
+   * Credit card number
+   * @method faker.finance.creditCardNumber
+   * @param {string} provider | scheme
+  */
+  self.creditCardNumber = function(provider){
+    provider = provider || "";
+    var format, formats;
+    var localeFormat = faker.definitions.finance.credit_card;
+    if (provider in localeFormat) {
+      formats = localeFormat[provider]; // there chould be multiple formats
+      if (typeof formats === "string") {
+        format = formats;
+      } else {
+        format = faker.random.arrayElement(formats);
+      }
+    } else if (provider.match(/#/)) { // The user chose an optional scheme
+      format = provider;
+    } else { // Choose a random provider
+      if (typeof localeFormat === 'string') {
+        format = localeFormat;
+      } else if( typeof localeFormat === "object") {
+        // Credit cards are in a object structure
+        formats = faker.random.objectElement(localeFormat, "value"); // There chould be multiple formats
+        if (typeof formats === "string") {
+          format = formats;
+        } else {
+          format = faker.random.arrayElement(formats);
+        }
+      }
+    }
+    format = format.replace(/\//g,"")
+    return Helpers.replaceCreditCardSymbols(format);
+  };
+  /**
+   * Credit card CVV
+   * @method faker.finance.creditCardNumber
+  */
+  self.creditCardCVV = function() {
+    var cvv = "";
+    for (var i = 0; i < 3; i++) {
+      cvv += faker.random.number({max:9}).toString();
+    }
+    return cvv;
   };
 
   /**
diff --git a/lib/helpers.js b/lib/helpers.js
index 635c4ecc..8f3b5c71 100644
--- a/lib/helpers.js
+++ b/lib/helpers.js
@@ -77,6 +77,116 @@ var Helpers = function (faker) {
   };
 
   /**
+   * replace symbols in a credit card schems including Luhn checksum
+   *
+   * @method faker.helpers.replaceCreditCardSymbols
+   * @param {string} string
+   * @param {string} symbol
+   */
+
+   self.replaceCreditCardSymbols = function(string, symbol) {
+     symbol = symbol || "#";
+
+     // Function calculating the Luhn checksum of a number string
+     var getCheckBit = function(number) {
+       number.reverse();
+       number = number.map(function(num, index){
+         if(index%2 === 0) {
+           num *= 2;
+           if(num>9) {
+             num -= 9;
+           }
+         }
+         return num;
+       });
+       var sum = number.reduce(function(prev,curr){return prev + curr;});
+       return sum % 10;
+     };
+
+     string = string || "";
+     string = faker.helpers.regexpStyleStringParse(string); // replace [4-9] with a random number in range etc...
+     string = faker.helpers.replaceSymbolWithNumber(string, symbol); // replace ### with random numbers
+
+     var numberList = string.replace(/\D/g,"").split("").map(function(num){return parseInt(num);});
+     var checkNum = getCheckBit(numberList);
+     return string.replace("L",checkNum);
+   };
+
+   /** string repeat helper, alternative to String.prototype.repeat.... See PR #382
+   *
+   * @method faker.helpers.repeatString
+   * @param {string} string
+   * @param {number} num
+   */
+   self.repeatString = function(string,num) {
+     if(typeof num ==="undefined") {
+       num = 0;
+     }
+     var text = "";
+     for(var i = 0; i < num; i++){
+       text += string.toString();
+     }
+     return text;
+   };
+
+   /**
+    * parse string paterns in a similar way to RegExp
+    *
+    * e.g. "#{3}test[1-5]" -> "###test4"
+    *
+    * @method faker.helpers.regexpStyleStringParse
+    * @param {string} string
+    */
+   self.regexpStyleStringParse = function(string){
+     string = string || "";
+     // Deal with range repeat `{min,max}`
+     var RANGE_REP_REG = /(.)\{(\d+)\,(\d+)\}/;
+     var REP_REG = /(.)\{(\d+)\}/;
+     var RANGE_REG = /\[(\d+)\-(\d+)\]/;
+     var min, max, tmp, repetitions;
+     var token = string.match(RANGE_REP_REG);
+     while(token !== null){
+       min = parseInt(token[2]);
+       max =  parseInt(token[3]);
+       // switch min and max
+       if(min>max) {
+         tmp = max;
+         max = min;
+         min = tmp;
+       }
+       repetitions = faker.random.number({min:min,max:max});
+       string = string.slice(0,token.index) + faker.helpers.repeatString(token[1], repetitions) + string.slice(token.index+token[0].length);
+       token = string.match(RANGE_REP_REG);
+     }
+     // Deal with repeat `{num}`
+     token = string.match(REP_REG);
+     while(token !== null){
+       repetitions = parseInt(token[2]);
+       string = string.slice(0,token.index)+ faker.helpers.repeatString(token[1], repetitions) + string.slice(token.index+token[0].length);
+       token = string.match(REP_REG);
+     }
+     // Deal with range `[min-max]` (only works with numbers for now)
+     //TODO: implement for letters e.g. [0-9a-zA-Z] etc.
+
+     token = string.match(RANGE_REG);
+     while(token !== null){
+       min = parseInt(token[1]); // This time we are not capturing the char befor `[]`
+       max =  parseInt(token[2]);
+       // switch min and max
+       if(min>max) {
+         tmp = max;
+         max = min;
+         min = tmp;
+       }
+        string = string.slice(0,token.index) +
+          faker.random.number({min:min, max:max}).toString() +
+          string.slice(token.index+token[0].length);
+        token = string.match(RANGE_REG);
+     }
+     return string;
+   };
+
+  /**
    * takes an array and returns it randomized
    *
    * @method faker.helpers.shuffle
diff --git a/lib/index.js b/lib/index.js
index a8ec14b5..c071c3fd 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -106,7 +106,7 @@ function Faker (opts) {
     "lorem": ["words"],
     "hacker": ["abbreviation", "adjective", "noun", "verb", "ingverb", "phrase"],
     "phone_number": ["formats"],
-    "finance": ["account_type", "transaction_type", "currency", "iban"],
+    "finance": ["account_type", "transaction_type", "currency", "iban", "credit_card"],
     "internet": ["avatar_uri", "domain_suffix", "free_email", "example_email", "password"],
     "commerce": ["color", "department", "product_name", "price", "categories"],
     "database": ["collation", "column", "engine", "type"],
diff --git a/lib/locales/en/credit_card/american_express.js b/lib/locales/en/credit_card/american_express.js
deleted file mode 100644
index 2a3d782b..00000000
--- a/lib/locales/en/credit_card/american_express.js
+++ /dev/null
@@ -1,4 +0,0 @@
-module["exports"] = [
-  "/34##-######-####L/",
-  "/37##-######-####L/"
-];
diff --git a/lib/locales/en/credit_card/diners_club.js b/lib/locales/en/credit_card/diners_club.js
deleted file mode 100644
index ddc7eb35..00000000
--- a/lib/locales/en/credit_card/diners_club.js
+++ /dev/null
@@ -1,4 +0,0 @@
-module["exports"] = [
-  "/30[0-5]#-######-###L/",
-  "/368#-######-###L/"
-];
diff --git a/lib/locales/en/credit_card/discover.js b/lib/locales/en/credit_card/discover.js
deleted file mode 100644
index d51aa159..00000000
--- a/lib/locales/en/credit_card/discover.js
+++ /dev/null
@@ -1,8 +0,0 @@
-module["exports"] = [
-  "/6011-####-####-###L/",
-  "/65##-####-####-###L/",
-  "/64[4-9]#-####-####-###L/",
-  "/6011-62##-####-####-###L/",
-  "/65##-62##-####-####-###L/",
-  "/64[4-9]#-62##-####-####-###L/"
-];
diff --git a/lib/locales/en/credit_card/jcb.js b/lib/locales/en/credit_card/jcb.js
deleted file mode 100644
index 03d83398..00000000
--- a/lib/locales/en/credit_card/jcb.js
+++ /dev/null
@@ -1,5 +0,0 @@
-module["exports"] = [
-  "/3528-####-####-###L/",
-  "/3529-####-####-###L/",
-  "/35[3-8]#-####-####-###L/"
-];
diff --git a/lib/locales/en/credit_card/laser.js b/lib/locales/en/credit_card/laser.js
deleted file mode 100644
index 922da719..00000000
--- a/lib/locales/en/credit_card/laser.js
+++ /dev/null
@@ -1,10 +0,0 @@
-module["exports"] = [
-  "/6304###########L/",
-  "/6706###########L/",
-  "/6771###########L/",
-  "/6709###########L/",
-  "/6304#########{5,6}L/",
-  "/6706#########{5,6}L/",
-  "/6771#########{5,6}L/",
-  "/6709#########{5,6}L/"
-];
diff --git a/lib/locales/en/credit_card/maestro.js b/lib/locales/en/credit_card/maestro.js
deleted file mode 100644
index da575f88..00000000
--- a/lib/locales/en/credit_card/maestro.js
+++ /dev/null
@@ -1,5 +0,0 @@
-module["exports"] = [
-  "/50#{9,16}L/",
-  "/5[6-8]#{9,16}L/",
-  "/56##{9,16}L/"
-];
diff --git a/lib/locales/en/credit_card/mastercard.js b/lib/locales/en/credit_card/mastercard.js
deleted file mode 100644
index f6525eb8..00000000
--- a/lib/locales/en/credit_card/mastercard.js
+++ /dev/null
@@ -1,4 +0,0 @@
-module["exports"] = [
-  "/5[1-5]##-####-####-###L/",
-  "/6771-89##-####-###L/"
-];
diff --git a/lib/locales/en/credit_card/solo.js b/lib/locales/en/credit_card/solo.js
deleted file mode 100644
index a577fb43..00000000
--- a/lib/locales/en/credit_card/solo.js
+++ /dev/null
@@ -1,5 +0,0 @@
-module["exports"] = [
-  "/6767-####-####-###L/",
-  "/6767-####-####-####-#L/",
-  "/6767-####-####-####-##L/"
-];
diff --git a/lib/locales/en/credit_card/switch.js b/lib/locales/en/credit_card/switch.js
deleted file mode 100644
index b12a4d07..00000000
--- a/lib/locales/en/credit_card/switch.js
+++ /dev/null
@@ -1,5 +0,0 @@
-module["exports"] = [
-  "/6759-####-####-###L/",
-  "/6759-####-####-####-#L/",
-  "/6759-####-####-####-##L/"
-];
diff --git a/lib/locales/en/credit_card/visa.js b/lib/locales/en/credit_card/visa.js
deleted file mode 100644
index 972eba8f..00000000
--- a/lib/locales/en/credit_card/visa.js
+++ /dev/null
@@ -1,4 +0,0 @@
-module["exports"] = [
-  "/4###########L/",
-  "/4###-####-####-###L/"
-];
diff --git a/lib/locales/en/finance/credit_card/american_express.js b/lib/locales/en/finance/credit_card/american_express.js
new file mode 100644
index 00000000..c63363ab
--- /dev/null
+++ b/lib/locales/en/finance/credit_card/american_express.js
@@ -0,0 +1,4 @@
+module["exports"] = [
+  "34##-######-####L",
+  "37##-######-####L"
+];
diff --git a/lib/locales/en/finance/credit_card/diners_club.js b/lib/locales/en/finance/credit_card/diners_club.js
new file mode 100644
index 00000000..4fb5d7ca
--- /dev/null
+++ b/lib/locales/en/finance/credit_card/diners_club.js
@@ -0,0 +1,5 @@
+module["exports"] = [
+  "30[0-5]#-######-###L",
+  "36##-######-###L",
+  "54##-####-####-###L"
+];
diff --git a/lib/locales/en/finance/credit_card/discover.js b/lib/locales/en/finance/credit_card/discover.js
new file mode 100644
index 00000000..cd84e840
--- /dev/null
+++ b/lib/locales/en/finance/credit_card/discover.js
@@ -0,0 +1,8 @@
+module["exports"] = [
+  "6011-####-####-###L",
+  "65##-####-####-###L",
+  "64[4-9]#-####-####-###L",
+  "6011-62##-####-####-###L",
+  "65##-62##-####-####-###L",
+  "64[4-9]#-62##-####-####-###L"
+];
diff --git a/lib/locales/en/credit_card/index.js b/lib/locales/en/finance/credit_card/index.js
index b083e967..3afd843e 100644
--- a/lib/locales/en/credit_card/index.js
+++ b/lib/locales/en/finance/credit_card/index.js
@@ -10,3 +10,4 @@ credit_card.switch = require("./switch");
 credit_card.solo = require("./solo");
 credit_card.maestro = require("./maestro");
 credit_card.laser = require("./laser");
+credit_card.instapayment = require("./instapayment.js")
diff --git a/lib/locales/en/finance/credit_card/instapayment.js b/lib/locales/en/finance/credit_card/instapayment.js
new file mode 100644
index 00000000..545c5380
--- /dev/null
+++ b/lib/locales/en/finance/credit_card/instapayment.js
@@ -0,0 +1,3 @@
+module["exports"] = [
+  "63[7-9]#-####-####-###L"
+];
diff --git a/lib/locales/en/finance/credit_card/jcb.js b/lib/locales/en/finance/credit_card/jcb.js
new file mode 100644
index 00000000..da396ebd
--- /dev/null
+++ b/lib/locales/en/finance/credit_card/jcb.js
@@ -0,0 +1,5 @@
+module["exports"] = [
+  "3528-####-####-###L",
+  "3529-####-####-###L",
+  "35[3-8]#-####-####-###L"
+];
diff --git a/lib/locales/en/finance/credit_card/laser.js b/lib/locales/en/finance/credit_card/laser.js
new file mode 100644
index 00000000..822c7b35
--- /dev/null
+++ b/lib/locales/en/finance/credit_card/laser.js
@@ -0,0 +1,10 @@
+module["exports"] = [
+  "6304###########L",
+  "6706###########L",
+  "6771###########L",
+  "6709###########L",
+  "6304#########{5,6}L",
+  "6706#########{5,6}L",
+  "6771#########{5,6}L",
+  "6709#########{5,6}L"
+];
diff --git a/lib/locales/en/finance/credit_card/maestro.js b/lib/locales/en/finance/credit_card/maestro.js
new file mode 100644
index 00000000..f652dd76
--- /dev/null
+++ b/lib/locales/en/finance/credit_card/maestro.js
@@ -0,0 +1,18 @@
+module["exports"] = [
+  "5018-#{4}-#{4}-#{3}L",
+  "5020-#{4}-#{4}-#{3}L",
+  "5038-#{4}-#{4}-#{3}L",
+  "5893-#{4}-#{4}-#{3}L",
+  "6304-#{4}-#{4}-#{3}L",
+  "6759-#{4}-#{4}-#{3}L",
+  "676[1-3]-####-####-###L",
+  "5018#{11,15}L",
+  "5020#{11,15}L",
+  "5038#{11,15}L",
+  "5893#{11,15}L",
+  "6304#{11,15}L",
+  "6759#{11,15}L",
+  "676[1-3]#{11,15}L",
+];
+
+// 5018 xxxx xxxx xxxx xxL
diff --git a/lib/locales/en/finance/credit_card/mastercard.js b/lib/locales/en/finance/credit_card/mastercard.js
new file mode 100644
index 00000000..81502c01
--- /dev/null
+++ b/lib/locales/en/finance/credit_card/mastercard.js
@@ -0,0 +1,4 @@
+module["exports"] = [
+  "5[1-5]##-####-####-###L",
+  "6771-89##-####-###L"
+];
diff --git a/lib/locales/en/finance/credit_card/solo.js b/lib/locales/en/finance/credit_card/solo.js
new file mode 100644
index 00000000..47d0d119
--- /dev/null
+++ b/lib/locales/en/finance/credit_card/solo.js
@@ -0,0 +1,5 @@
+module["exports"] = [
+  "6767-####-####-###L",
+  "6767-####-####-####-#L",
+  "6767-####-####-####-##L"
+];
diff --git a/lib/locales/en/finance/credit_card/switch.js b/lib/locales/en/finance/credit_card/switch.js
new file mode 100644
index 00000000..1bae8278
--- /dev/null
+++ b/lib/locales/en/finance/credit_card/switch.js
@@ -0,0 +1,5 @@
+module["exports"] = [
+  "6759-####-####-###L",
+  "6759-####-####-####-#L",
+  "6759-####-####-####-##L"
+];
diff --git a/lib/locales/en/finance/credit_card/visa.js b/lib/locales/en/finance/credit_card/visa.js
new file mode 100644
index 00000000..760f921d
--- /dev/null
+++ b/lib/locales/en/finance/credit_card/visa.js
@@ -0,0 +1,4 @@
+module["exports"] = [
+  "4###########L",
+  "4###-####-####-###L"
+];
diff --git a/lib/locales/en/finance/index.js b/lib/locales/en/finance/index.js
index 4020b1d0..9a5b00d9 100644
--- a/lib/locales/en/finance/index.js
+++ b/lib/locales/en/finance/index.js
@@ -3,3 +3,4 @@ module['exports'] = finance;
 finance.account_type = require("./account_type");
 finance.transaction_type = require("./transaction_type");
 finance.currency = require("./currency");
+finance.credit_card = require("./credit_card");
diff --git a/lib/locales/en/index.js b/lib/locales/en/index.js
index 5cc575f9..04ce4e49 100644
--- a/lib/locales/en/index.js
+++ b/lib/locales/en/index.js
@@ -3,7 +3,6 @@ module['exports'] = en;
 en.title = "English";
 en.separator = " & ";
 en.address = require("./address");
-en.credit_card = require("./credit_card");
 en.company = require("./company");
 en.internet = require("./internet");
 en.database = require("./database");
diff --git a/test/finance.unit.js b/test/finance.unit.js
index 61ae7b6c..a879d584 100644
--- a/test/finance.unit.js
+++ b/test/finance.unit.js
@@ -222,7 +222,7 @@ describe('finance.js', function () {
     describe("bitcoinAddress()", function(){
         it("returns a random bitcoin address", function(){
             var bitcoinAddress = faker.finance.bitcoinAddress();
-            
+
             assert.ok(bitcoinAddress.match(/^[A-Z0-9.]{27,34}$/));
         });
     });
@@ -230,11 +230,83 @@ describe('finance.js', function () {
     describe("ethereumAddress()", function(){
         it("returns a random ethereum address", function(){
             var ethereumAddress = faker.finance.ethereumAddress();
-            
             assert.ok(ethereumAddress.match(/^(0x)[0-9a-f]{40}$/i));
         });
     });
 
+    describe("creditCardNumber()", function(){
+      var luhnFormula = require("./support/luhnCheck.js");
+
+      it("returns a random credit card number", function(){
+        var number = faker.finance.creditCardNumber();
+        number = number.replace(/\D/g,""); // remove formating
+        console.log("version:", process.version, number, number.length);
+        assert.ok(number.length >= 13 && number.length <= 20);
+        assert.ok(number.match(/^[0-9]{13,20}$/));
+        assert.ok(luhnFormula(number));
+      });
+
+      it("returns a valid credit card number", function(){
+        assert.ok(luhnFormula(faker.finance.creditCardNumber("")));
+        assert.ok(luhnFormula(faker.finance.creditCardNumber()));
+        assert.ok(luhnFormula(faker.finance.creditCardNumber()));
+        assert.ok(luhnFormula(faker.finance.creditCardNumber("visa")));
+        assert.ok(luhnFormula(faker.finance.creditCardNumber("mastercard")));
+        assert.ok(luhnFormula(faker.finance.creditCardNumber("discover")));
+        assert.ok(luhnFormula(faker.finance.creditCardNumber()));
+        assert.ok(luhnFormula(faker.finance.creditCardNumber()));
+      });
+      it("returns a correct credit card number when issuer provided", function(){
+        //TODO: implement checks for each format with regexp
+        var visa = faker.finance.creditCardNumber("visa");
+        assert.ok(visa.match(/^4(([0-9]){12}|([0-9]){3}(\-([0-9]){4}){3})$/));
+        assert.ok(luhnFormula(visa));
+
+
+        var mastercard = faker.finance.creditCardNumber("mastercard");
+        assert.ok(mastercard.match(/^(5[1-5]\d{2}|6771)(\-\d{4}){3}$/));
+        assert.ok(luhnFormula(mastercard));
+
+        var discover = faker.finance.creditCardNumber("discover");
+
+        assert.ok(luhnFormula(discover));
+
+        var american_express = faker.finance.creditCardNumber("american_express");
+        assert.ok(luhnFormula(american_express));
+        var diners_club = faker.finance.creditCardNumber("diners_club");
+        assert.ok(luhnFormula(diners_club));
+        var jcb = faker.finance.creditCardNumber("jcb");
+        assert.ok(luhnFormula(jcb));
+        var switchC = faker.finance.creditCardNumber("mastercard");
+        assert.ok(luhnFormula(switchC));
+        var solo = faker.finance.creditCardNumber("solo");
+        assert.ok(luhnFormula(solo));
+        var maestro = faker.finance.creditCardNumber("maestro");
+        assert.ok(luhnFormula(maestro));
+        var laser = faker.finance.creditCardNumber("laser");
+        assert.ok(luhnFormula(laser));
+        var instapayment = faker.finance.creditCardNumber("instapayment");
+        assert.ok(luhnFormula(instapayment));
+      });
+      it("returns custom formated strings",function(){
+        var number = faker.finance.creditCardNumber("###-###-##L");
+        assert.ok(number.match(/^\d{3}\-\d{3}\-\d{3}$/));
+        assert.ok(luhnFormula(number));
+        number =faker.finance.creditCardNumber("234[5-9]#{999}L");
+        assert.ok(number.match(/^234[5-9]\d{1000}$/));
+        assert.ok(luhnFormula(number));
+      });
+    });
+    
+    describe("creditCardCVV()", function(){
+      it("returns a random credit card CVV", function(){
+        var cvv = faker.finance.creditCardCVV();
+        assert.ok(cvv.length === 3);
+        assert.ok(cvv.match(/^[0-9]{3}$/));
+      });
+    });
+      
+
     describe("iban()", function () {
         var ibanLib = require('../lib/iban');
         it("returns a random yet formally correct IBAN number", function () {
@@ -254,4 +326,4 @@ describe('finance.js', function () {
             assert.ok(bic.match(expr));
         });
     });
-});
\ No newline at end of file
+});
diff --git a/test/helpers.unit.js b/test/helpers.unit.js
index 707575ff..b440f33e 100644
--- a/test/helpers.unit.js
+++ b/test/helpers.unit.js
@@ -67,6 +67,57 @@ describe("helpers.js", function () {
         });
     });
 
+    describe("replaceCreditCardSymbols()", function () {
+      var luhnCheck = require("./support/luhnCheck.js");
+      it("returns a credit card number given a schema", function () {
+        var number = faker.helpers.replaceCreditCardSymbols("6453-####-####-####-###L");
+        assert.ok(number.match(/^6453\-([0-9]){4}\-([0-9]){4}\-([0-9]){4}\-([0-9]){4}$/));
+        assert.ok(luhnCheck(number));
+      });
+      it("supports different symbols", function () {
+        var number = faker.helpers.replaceCreditCardSymbols("6453-****-****-****-***L","*");
+        assert.ok(number.match(/^6453\-([0-9]){4}\-([0-9]){4}\-([0-9]){4}\-([0-9]){4}$/));
+        assert.ok(luhnCheck(number));
+      });
+      it("handles regexp style input", function () {
+        var number = faker.helpers.replaceCreditCardSymbols("6453-*{4}-*{4}-*{4}-*{3}L","*");
+        assert.ok(number.match(/^6453\-([0-9]){4}\-([0-9]){4}\-([0-9]){4}\-([0-9]){4}$/));
+        assert.ok(luhnCheck(number));
+        number = faker.helpers.replaceCreditCardSymbols("645[5-9]-#{4,6}-#{1,2}-#{4,6}-#{3}L");
+        assert.ok(number.match(/^645[5-9]\-([0-9]){4,6}\-([0-9]){1,2}\-([0-9]){4,6}\-([0-9]){4}$/));
+        assert.ok(luhnCheck(number));
+      });
+    });
+
+    describe("regexpStyleStringParse()", function () {
+      it("returns an empty string when called without param", function () {
+        assert.ok(faker.helpers.regexpStyleStringParse() === "");
+      });
+      it("deals with range repeat", function () {
+        var string = faker.helpers.regexpStyleStringParse("#{5,10}");
+        assert.ok(string.length <= 10 && string.length >= 5);
+        assert.ok(string.match(/^\#{5,10}$/));
+      });
+      it("flips the range when min > max", function () {
+        var string = faker.helpers.regexpStyleStringParse("#{10,5}");
+        assert.ok(string.length <= 10 && string.length >= 5);
+        assert.ok(string.match(/^\#{5,10}$/));
+      });
+      it("repeats string {n} number of times", function () {
+        assert.ok(faker.helpers.regexpStyleStringParse("%{10}") === faker.helpers.repeatString("%",10));
+        assert.ok(faker.helpers.regexpStyleStringParse("%{30}") === faker.helpers.repeatString("%",30));
+        assert.ok(faker.helpers.regexpStyleStringParse("%{5}") === faker.helpers.repeatString("%",5));
+      });
+      it("creates a numerical range", function () {
+        var string = faker.helpers.regexpStyleStringParse("Hello[0-9]");
+        assert.ok(string.match(/^Hello[0-9]$/));
+      });
+      it("deals with multiple tokens in one string", function () {
+        var string = faker.helpers.regexpStyleStringParse("Test#{5}%{2,5}Testing**[1-5]**{10}END");
+        assert.ok(string.match(/^Test\#{5}%{2,5}Testing\*\*[1-5]\*\*{10}END$/));
+      });
+    });
+
   describe("createTransaction()", function() {
     it("should create a random transaction", function() {
       var transaction = faker.helpers.createTransaction();
diff --git a/test/support/luhnCheck.js b/test/support/luhnCheck.js
new file mode 100644
index 00000000..1e195544
--- /dev/null
+++ b/test/support/luhnCheck.js
@@ -0,0 +1,18 @@
+module.exports = function (number) {
+  number = number.replace(/\D/g,"");
+  var split = number.split("");
+  split = split.map(function(num){return parseInt(num);});
+  var check = split.pop();
+  split.reverse();
+  split = split.map(function(num, index){
+    if(index%2 === 0) {
+      num *= 2;
+      if(num>9) {
+        num -= 9;
+      }
+    }
+    return num;
+  });
+  var sum = split.reduce(function(prev,curr){return prev + curr;});
+  return (sum%10 === check);
+};