Merge 42af95b into 15566a4

mrferos · Oct 16, 2016 · 381eeb4 · 381eeb4
2 parents 15566a4 + 42af95b
commit 381eeb4
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diff --git a/API.md b/API.md
@@ -18,6 +18,7 @@
     - [`string.ip()`](#stringip)
     - [`string.uri($options)`](#stringurioptions)
     - [`string.replace($pattern, $replacement)`](#stringreplacepattern-replacement)
+    - [`string.creditCard()`](#stringcreditcard)
 - [`date`](#date)
     - [`date.iso()`](#dateiso)
     - [`date.format($format)`](#dateformatformat)
@@ -137,6 +138,11 @@ Replace matched portion of string
 ```php
 $schema = cmf()->string()->replace('/\d+/', 'foo');
 ```
+#### string.creditCard()
+Validate value is a credit card
+```php
+$schema = cmf()->string()->creditCard();
+```
 #### date()
 Validates data is a date
 ```php

diff --git a/src/Validator/StringValidator.php b/src/Validator/StringValidator.php
@@ -174,6 +174,31 @@ public function email()
         });
     }
 
+    /**
+     * Validate the number is a valid credit card
+     *
+     * @return $this
+     */
+    public function creditCard()
+    {
+        return $this->add(function ($value, $nameKey) {
+            $i = strlen($value);
+            $sum = 0;
+            $mul = 1;
+
+            while ($i--) {
+                $char = $value[$i] * $mul;
+                $sum = $sum + ($char - ($char > 9) * 9);
+                $mul = $mul ^ 3;
+            }
+
+            $check = ($sum % 10 === 0) && ($sum > 0);
+            if (!$check) {
+                return $this->createError('string.credit-card', $value, $nameKey);
+            }
+        });
+    }
+
     /**
      * Validate the string is an IP
      *

diff --git a/tests/unit/Validator/StringValidatorTest.php b/tests/unit/Validator/StringValidatorTest.php
@@ -503,4 +503,37 @@ public function testMapWithCallbackMapper()
         $result = $this->stringValidator->__invoke('present');
         $this->assertEquals('returned-value', $result);
     }
+
+    public function getCreditCardNumbers()
+    {
+        return [
+            ['378282246310005'],
+            ['371449635398431'],
+            ['378734493671000'],
+            ['5610591081018250'],
+            ['30569309025904'],
+            ['38520000023237'],
+            ['6011111111111117'],
+            ['6011000990139424'],
+        ];
+    }
+
+    /**
+     * @dataProvider getCreditCardNumbers
+     */
+    public function testIsCreditCard($creditCard)
+    {
+        $this->stringValidator->creditCard();
+        $this->assertTrue(
+            $this->stringValidator->__invoke($creditCard)
+        );
+    }
+
+    public function testCreditCardOnInvalidValue()
+    {
+        $this->stringValidator->creditCard();
+        $this->assertFalse(
+            $this->stringValidator->__invoke('rawr')
+        );
+    }
 }