Experiment to add bank name in autofill ui.

components/autofill/core/browser/credit_card_unittest.cc

Index: components/autofill/core/browser/credit_card_unittest.cc
diff --git a/components/autofill/core/browser/credit_card_unittest.cc b/components/autofill/core/browser/credit_card_unittest.cc
index 4e371ec4656c77167a33d5b7c6407f6843fcae03..4a2ef7029d2d24f3eadaffad9bbaa70297e1bfb5 100644
--- a/components/autofill/core/browser/credit_card_unittest.cc
+++ b/components/autofill/core/browser/credit_card_unittest.cc
@@ -8,6 +8,7 @@
 #include "base/macros.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/test/scoped_feature_list.h"
 #include "base/time/time.h"
 #include "build/build_config.h"
 #include "components/autofill/core/browser/autofill_experiments.h"
@@ -144,6 +145,26 @@ TEST(CreditCardTest, PreviewSummaryAndTypeAndLastFourDigitsStrings) {
             obfuscated5);
 }
 
+// Tests credit card bank name and last four digits string generation.
+TEST(CreditCardTest, BankNameAndLastFourDigitsStrings) {

[sebsg, 2017/04/12 22:32:36]

Could you please add a test with a bank name longer that 8 chars? thanks!

[Shanfeng, 2017/04/13 18:29:09]

Done.

+  // Case 1: Have everything and show bank name
+  CreditCard credit_card1(base::GenerateGUID(), "https://www.example.com/");
+  test::SetCreditCardInfo(&credit_card1, "John Dillinger",
+                          "5105 1051 0510 5100", "01", "2010");
+  credit_card1.SetBankName("Chase");
+  base::string16 obfuscated1 = credit_card1.BankNameAndLastFourDigits();
+  EXPECT_FALSE(credit_card1.bank_name().empty());
+  EXPECT_EQ(UTF8ToUTF16("Chase" + kUTF8MidlineEllipsis + "5100"), obfuscated1);
+
+  // Case 2: Have no bank name and not show bank name
+  CreditCard credit_card2(base::GenerateGUID(), "https://www.example.com/");
+  test::SetCreditCardInfo(&credit_card2, "John Dillinger",
+                          "5105 1051 0510 5100", "01", "2010");
+  base::string16 obfuscated2 = credit_card2.BankNameAndLastFourDigits();
+  EXPECT_TRUE(credit_card2.bank_name().empty());
+  EXPECT_EQ(UTF8ToUTF16(kUTF8MidlineEllipsis + "5100"), obfuscated2);
+}
+
 TEST(CreditCardTest, AssignmentOperator) {
   CreditCard a(base::GenerateGUID(), "some origin");
   test::SetCreditCardInfo(&a, "John Dillinger", "123456789012", "01", "2010");