From a3da1417d0a3f7bc072a52222a3e5f6c8d95f147 Mon Sep 17 00:00:00 2001
From: Matt Mayer <matt@matthewmayer.co.uk>
Date: Sat, 16 Sep 2023 18:52:20 +0700
Subject: [PATCH] feat(isCreditCard): add maestro

---
 README.md               |  2 +-
 src/lib/isCreditCard.js |  1 +
 test/validators.test.js | 15 +++++++++++++++
 3 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index e00b7cfac..b74ad2bef 100644
--- a/README.md
+++ b/README.md
@@ -102,7 +102,7 @@ Validator                               | Description
 **isBoolean(str [, options])**          | check if the string is a boolean.<br/>`options` is an object which defaults to `{ loose: false }`. If `loose` is is set to false, the validator will strictly match ['true', 'false', '0', '1']. If `loose` is set to true, the validator will also match 'yes', 'no', and will match a valid boolean string of any case. (e.g.: ['true', 'True', 'TRUE']).
 **isBtcAddress(str)**            | check if the string is a valid BTC address.
 **isByteLength(str [, options])**          | check if the string's length (in UTF-8 bytes) falls in a range.<br/><br/>`options` is an object which defaults to `{ min: 0, max: undefined }`.
-**isCreditCard(str [, options])**                   | check if the string is a credit card number.<br/><br/> `options` is an optional object that can be supplied with the following key(s): `provider` is an optional key whose value should be a string, and defines the company issuing the credit card. Valid values include `['amex', 'dinersclub', 'discover', 'jcb', 'mastercard', 'unionpay', 'visa']` or blank will check for any provider. 
+**isCreditCard(str [, options])**                   | check if the string is a credit card number.<br/><br/> `options` is an optional object that can be supplied with the following key(s): `provider` is an optional key whose value should be a string, and defines the company issuing the credit card. Valid values include `['amex', 'dinersclub', 'discover', 'jcb', 'maestro', 'mastercard', 'unionpay', 'visa']` or blank will check for any provider. 
 **isCurrency(str [, options])**            | check if the string is a valid currency amount.<br/><br/>`options` is an object which defaults to `{ symbol: '$', require_symbol: false, allow_space_after_symbol: false, symbol_after_digits: false, allow_negatives: true, parens_for_negatives: false, negative_sign_before_digits: false, negative_sign_after_digits: false, allow_negative_sign_placeholder: false, thousands_separator: ',', decimal_separator: '.', allow_decimal: true, require_decimal: false, digits_after_decimal: [2], allow_space_after_digits: false }`.<br/>**Note:** The array `digits_after_decimal` is filled with the exact number of digits allowed not a range, for example a range 1 to 3 will be given as [1, 2, 3].
 **isDataURI(str)**                      | check if the string is a [data uri format][Data URI Format].
 **isDate(str [, options])**          | check if the string is a valid date. e.g. [`2002-07-15`, new Date()].<br/><br/> `options` is an object which can contain the keys `format`, `strictMode` and/or `delimiters`.<br/><br/>`format` is a string and defaults to `YYYY/MM/DD`.<br/><br/>`strictMode` is a boolean and defaults to `false`. If `strictMode` is set to true, the validator will reject strings different from `format`.<br/><br/> `delimiters` is an array of allowed date delimiters and defaults to `['/', '-']`.
diff --git a/src/lib/isCreditCard.js b/src/lib/isCreditCard.js
index 938679d39..788c40ea0 100644
--- a/src/lib/isCreditCard.js
+++ b/src/lib/isCreditCard.js
@@ -7,6 +7,7 @@ const cards = {
   discover: /^6(?:011|5[0-9][0-9])[0-9]{12,15}$/,
   jcb: /^(?:2131|1800|35\d{3})\d{11}$/,
   mastercard: /^5[1-5][0-9]{2}|(222[1-9]|22[3-9][0-9]|2[3-6][0-9]{2}|27[01][0-9]|2720)[0-9]{12}$/, // /^[25][1-7][0-9]{14}$/;
+  maestro: /^(5018|5020|5038|5893|6304|6759|6761|6762|6763)[0-9]{8,15}$/,
   unionpay: /^(6[27][0-9]{14}|^(81[0-9]{14,17}))$/,
   visa: /^(?:4[0-9]{12})(?:[0-9]{3,6})?$/,
 };
diff --git a/test/validators.test.js b/test/validators.test.js
index 6c68cd71a..cf1dbcb54 100644
--- a/test/validators.test.js
+++ b/test/validators.test.js
@@ -5653,6 +5653,21 @@ describe('Validators', () => {
     });
   });
 
+  it('should validate Maestro provided credit cards', () => {
+    test({
+      validator: 'isCreditCard',
+      args: [{ provider: 'Maestro' }],
+      valid: [
+        '5018010645701606',
+        '5893771408742232',
+        '676138918367463242',
+      ],
+      invalid: [
+        'foo',
+        '6283875070985593',
+      ],
+    });
+  });
 
   it('should validate Union Pay provided credit cards', () => {
     test({