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 81f2b885aebb7435efb022c0f628ff7570c18d9a..aa6c9ea3229c1fb8792ffe71f456bc721837d1f4 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 +145,22 @@ TEST(CreditCardTest, PreviewSummaryAndTypeAndLastFourDigitsStrings) {
             obfuscated5);
 }
 
+// Tests credit card bank name and last four digits string generation.
+TEST(CreditCardTest, BankNameAndLastFourDigitsStrings) {
+  // Turn on feature flag.
+  base::test::ScopedFeatureList scoped_feature_list_;
+  scoped_feature_list_.InitAndEnableFeature(kAutofillCreditCardBankNameDisplay);
+
+  // 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(UTF8ToUTF16("Chase"));
+  base::string16 obfuscated6 = credit_card1.BankNameAndLastFourDigits();
+  EXPECT_EQ(UTF8ToUTF16("Chase" + kUTF8MidlineEllipsis + "5100"),
+            obfuscated6);

[Jared Saul, 2017/02/23 19:23:33]

+ maybe a test for experiment off and with bank name = not shown

[Shanfeng, 2017/02/28 19:22:21]

Done.

+}
+
 TEST(CreditCardTest, AssignmentOperator) {
   CreditCard a(base::GenerateGUID(), "some origin");
   test::SetCreditCardInfo(&a, "John Dillinger", "123456789012", "01", "2010");