From 9a22a62a72ad936158c3a52bb618f7d8a8f72936 Mon Sep 17 00:00:00 2001
From: levinse <levinse>
Date: Thu, 14 Jul 2011 04:22:28 +0000
Subject: [PATCH] add Isracard validation, RT13643

---
 CreditCard.pm  | 12 +++++++++---
 t/validation.t | 20 ++++++++++++++++++++
 2 files changed, 29 insertions(+), 3 deletions(-)
 create mode 100644 t/validation.t

diff --git a/CreditCard.pm b/CreditCard.pm
index 4993f4e..df40315 100644
--- a/CreditCard.pm
+++ b/CreditCard.pm
@@ -219,7 +219,7 @@ sub cardtype {
 sub generate_last_digit {
     my ($number) = @_;
 
-    #XXX doesn't work for Isracard, should die
+    die "invalid operation" if length($number) == 8 || length($number) == 9;
 
     my ($i, $sum, $weight);
 
@@ -242,8 +242,14 @@ sub validate {
 
     $number =~ s/\D//g;
 
-    return 1 if $number =~ /^[\dx]{8,9}$/; #XXX Isracard does not use LUHN,
-                                           # validation not yet implemented
+    if ( $number =~ /^[\dx]{8,9}$/ ) { # Isracard
+        $number = "0$number" if length($number) == 8;
+        for($i=1;$i<length($number);$i++){
+            $sum += substr($number,9-$i,1) * $i;
+        }
+        return 1 if $sum%11 == 0;
+        return 0;
+    }
 
     return 0 unless length($number) >= 13 && 0+$number;
 
diff --git a/t/validation.t b/t/validation.t
new file mode 100644
index 0000000..953e4bc
--- /dev/null
+++ b/t/validation.t
@@ -0,0 +1,20 @@
+
+use Test::More tests => 1;
+use Business::CreditCard;
+
+ok( test_card_validation() );
+
+sub test_card_validation {
+        my %test_table=(
+                '10830529'  => 'Isracard',
+                '010830529' => 'Isracard',
+        );
+        while( my ($k, $v)=each(%test_table) ){
+                if(!validate($k)){
+                        warn "Card $k - should be a valid $v but validation failed\n";
+                        return;
+                }
+        }
+        return 1;
+}
+
-- 
2.11.0