[Autofill] Don't validate China UnionPay cards with the Luhn checksum.

components/autofill/core/browser/credit_card_unittest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/basictypes.h"
 #include "base/guid.h"
 #include "base/strings/utf_string_conversions.h"
 #include "components/autofill/core/browser/autofill_common_test.h"
 #include "components/autofill/core/browser/credit_card.h"
 #include "components/autofill/core/browser/validation.h"
@@ skipping 16 matching lines @@
   "6011 0009 9013 9424",
   "3530-1113-3330-0000",
   "3566002020360505",
   "5555 5555 5555 4444",
   "5105-1051-0510-5100",
   "4111111111111111",
   "4012 8888 8888 1881",
   "4222-2222-2222-2",
   "5019717010103742",
   "6331101999990016",
+
+  // A UnionPay card that doesn't pass the Luhn checksum
+  "6200000000000000",
 };
 const char* const kInvalidNumbers[] = {
   "4111 1111 112", /* too short */
   "41111111111111111115", /* too long */
   "4111-1111-1111-1110", /* wrong Luhn checksum */
   "3056 9309 0259 04aa", /* non-digit characters */
 };
 
 }  // namespace
 
@@ skipping 505 matching lines @@
     { "5500005555555559", kMasterCard, true },
     { "5555555555555557", kMasterCard, true },
     { "5454545454545454", kMasterCard, true },
     { "5555515555555551", kMasterCard, true },
     { "5405222222222226", kMasterCard, true },
     { "5478050000000007", kMasterCard, true },
     { "5111005111051128", kMasterCard, true },
     { "5112345112345114", kMasterCard, true },
     { "5115915115915118", kMasterCard, true },
 
+    // A UnionPay card that doesn't pass the Luhn checksum
+    { "6200000000000000", kUnionPay, true },
+
     // Empty string
     { std::string(), kGenericCard, false },
 
     // Non-numeric
     { "garbage", kGenericCard, false },
     { "4garbage", kVisaCard, false },
 
     // Fails Luhn check.
     { "4111111111111112", kVisaCard, false },
 
@@ skipping 24 matching lines @@
     { "649", kDiscoverCard, false },
     { "65", kDiscoverCard, false },
     { "3528", kJCBCard, false },
     { "3531", kJCBCard, false },
     { "3589", kJCBCard, false },
     { "51", kMasterCard, false },
     { "52", kMasterCard, false },
     { "53", kMasterCard, false },
     { "54", kMasterCard, false },
     { "55", kMasterCard, false },
+    { "62", kUnionPay, false },
 
     // Not enough data to determine an IIN uniquely.
     { "3", kGenericCard, false },
     { "30", kGenericCard, false },
     { "309", kGenericCard, false },
     { "35", kGenericCard, false },
     { "5", kGenericCard, false },
     { "6", kGenericCard, false },
     { "60", kGenericCard, false },
     { "601", kGenericCard, false },
@@ skipping 23 matching lines @@
     { "600", kGenericCard, false },
     { "602", kGenericCard, false },
     { "603", kGenericCard, false },
     { "604", kGenericCard, false },
     { "605", kGenericCard, false },
     { "606", kGenericCard, false },
     { "607", kGenericCard, false },
     { "608", kGenericCard, false },
     { "609", kGenericCard, false },
     { "61", kGenericCard, false },
-    { "62", kGenericCard, false },
     { "63", kGenericCard, false },
     { "640", kGenericCard, false },
     { "641", kGenericCard, false },
     { "642", kGenericCard, false },
     { "643", kGenericCard, false },
     { "66", kGenericCard, false },
     { "67", kGenericCard, false },
     { "68", kGenericCard, false },
     { "69", kGenericCard, false },
     { "7", kGenericCard, false },
     { "8", kGenericCard, false },
     { "9", kGenericCard, false },
 
     // Oddball case: Unknown issuer, but valid Luhn check and plausible length.
     { "7000700070007000", kGenericCard, true },
   };
 
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(test_cases); ++i) {
     base::string16 card_number = ASCIIToUTF16(test_cases[i].card_number);
     SCOPED_TRACE(card_number);
     EXPECT_EQ(test_cases[i].type, CreditCard::GetCreditCardType(card_number));
     EXPECT_EQ(test_cases[i].is_valid, IsValidCreditCardNumber(card_number));
   }
 }
 
 }  // namespace autofill