[Autofill] Autofill fails to fill credit card number when split across fields.

components/autofill/core/browser/credit_card_field_unittest.cc

Index: components/autofill/core/browser/credit_card_field_unittest.cc
diff --git a/components/autofill/core/browser/credit_card_field_unittest.cc b/components/autofill/core/browser/credit_card_field_unittest.cc
index 39e222f305da271cfe17b9d420fdc2135257b2a2..0732f628dfa1435492eaa06146eaf78b733afd93 100644
--- a/components/autofill/core/browser/credit_card_field_unittest.cc
+++ b/components/autofill/core/browser/credit_card_field_unittest.cc
@@ -21,7 +21,7 @@ class CreditCardFieldTest : public testing::Test {
   virtual ~CreditCardFieldTest() {}
 
  protected:
-  ScopedVector<const AutofillField> list_;
+  ScopedVector<AutofillField> list_;
   scoped_ptr<const CreditCardField> field_;
   ServerFieldTypeMap field_type_map_;
 
@@ -380,4 +380,122 @@ TEST_F(CreditCardFieldTest, ParseCreditCardExpYear_2DigitMaxLength) {
             field_type_map_[ASCIIToUTF16("year")]);
 }
 
+TEST_F(CreditCardFieldTest, ParseCreditCardNumberWithSplit) {
+  FormFieldData field;
+  field.form_control_type = "text";
+
+  field.label = ASCIIToUTF16("Card Number");
+  field.name = ASCIIToUTF16("card_number_q1");
+  field.max_length = 4;
+  list_.push_back(new AutofillField(field, ASCIIToUTF16("number1")));
+
+  field.label = ASCIIToUTF16("Card Number");
+  field.name = ASCIIToUTF16("card_number_q2");
+  field.max_length = 4;
+  list_.push_back(new AutofillField(field, ASCIIToUTF16("number2")));
+
+  field.label = ASCIIToUTF16("Card Number");
+  field.name = ASCIIToUTF16("card_number_q3");
+  field.max_length = 4;
+  list_.push_back(new AutofillField(field, ASCIIToUTF16("number3")));
+
+  // For last credit card number input field it simply ignores the |max_length|
+  // attribute. So even having a very big number, does not conside it an invalid
+  // split for autofilling.
+  field.label = ASCIIToUTF16("Card Number");
+  field.name = ASCIIToUTF16("card_number_q4");
+  field.max_length = 20;
+  list_.push_back(new AutofillField(field, ASCIIToUTF16("number4")));
+
+  field.label = ASCIIToUTF16("Exp Month");
+  field.name = ASCIIToUTF16("ccmonth");
+  list_.push_back(new AutofillField(field, ASCIIToUTF16("month5")));
+
+  field.label = ASCIIToUTF16("Exp Year");
+  field.name = ASCIIToUTF16("ccyear");
+  list_.push_back(new AutofillField(field, ASCIIToUTF16("year6")));
+
+  Parse();
+  ASSERT_NE(static_cast<CreditCardField*>(NULL), field_.get());
+  EXPECT_TRUE(ClassifyField());
+
+  ASSERT_TRUE(field_type_map_.find(ASCIIToUTF16("number1")) !=
+              field_type_map_.end());
+  EXPECT_EQ(CREDIT_CARD_NUMBER, field_type_map_[ASCIIToUTF16("number1")]);
+  EXPECT_EQ(0U, list_[0]->credit_card_number_offset());
+
+  ASSERT_TRUE(field_type_map_.find(ASCIIToUTF16("number2")) !=
+              field_type_map_.end());
+  EXPECT_EQ(CREDIT_CARD_NUMBER, field_type_map_[ASCIIToUTF16("number2")]);
+  EXPECT_EQ(4U, list_[1]->credit_card_number_offset());
+
+  ASSERT_TRUE(field_type_map_.find(ASCIIToUTF16("number3")) !=
+              field_type_map_.end());
+  EXPECT_EQ(CREDIT_CARD_NUMBER, field_type_map_[ASCIIToUTF16("number3")]);
+  EXPECT_EQ(8U, list_[2]->credit_card_number_offset());
+
+  ASSERT_TRUE(field_type_map_.find(ASCIIToUTF16("number4")) !=
+              field_type_map_.end());
+  EXPECT_EQ(CREDIT_CARD_NUMBER, field_type_map_[ASCIIToUTF16("number4")]);
+  EXPECT_EQ(12U, list_[3]->credit_card_number_offset());
+
+  ASSERT_TRUE(field_type_map_.find(ASCIIToUTF16("month5")) !=
+              field_type_map_.end());
+  EXPECT_EQ(CREDIT_CARD_EXP_MONTH, field_type_map_[ASCIIToUTF16("month5")]);
+  ASSERT_TRUE(field_type_map_.find(ASCIIToUTF16("year6")) !=
+              field_type_map_.end());
+  EXPECT_EQ(CREDIT_CARD_EXP_4_DIGIT_YEAR,
+            field_type_map_[ASCIIToUTF16("year6")]);
+}
+
+TEST_F(CreditCardFieldTest, ParseCreditCardNumberWithInvalidSplit) {
+  FormFieldData field;
+  field.form_control_type = "text";
+
+  field.label = ASCIIToUTF16("Card Number");
+  field.name = ASCIIToUTF16("card_number_q1");
+  field.max_length = 4;
+  list_.push_back(new AutofillField(field, ASCIIToUTF16("number1")));
+
+  field.label = ASCIIToUTF16("Card Number");
+  field.name = ASCIIToUTF16("card_number_q2");
+  field.max_length = 20;
+  list_.push_back(new AutofillField(field, ASCIIToUTF16("number2")));
+
+  field.label = ASCIIToUTF16("Card Number");
+  field.name = ASCIIToUTF16("card_number_q3");
+  field.max_length = 4;
+  list_.push_back(new AutofillField(field, ASCIIToUTF16("number3")));
+
+  field.label = ASCIIToUTF16("Card Number");
+  field.name = ASCIIToUTF16("card_number_q4");
+  field.max_length = 4;
+  list_.push_back(new AutofillField(field, ASCIIToUTF16("number4")));
+
+  field.label = ASCIIToUTF16("Exp Month");
+  field.name = ASCIIToUTF16("ccmonth");
+  list_.push_back(new AutofillField(field, ASCIIToUTF16("month5")));
+
+  field.label = ASCIIToUTF16("Exp Year");
+  field.name = ASCIIToUTF16("ccyear");
+  list_.push_back(new AutofillField(field, ASCIIToUTF16("year6")));
+
+  Parse();
+  ASSERT_NE(static_cast<CreditCardField*>(NULL), field_.get());
+  EXPECT_FALSE(ClassifyField());
+
+  ASSERT_TRUE(field_type_map_.find(ASCIIToUTF16("number1")) ==
+              field_type_map_.end());
+  ASSERT_TRUE(field_type_map_.find(ASCIIToUTF16("number2")) ==
+              field_type_map_.end());
+  ASSERT_TRUE(field_type_map_.find(ASCIIToUTF16("number3")) ==
+              field_type_map_.end());
+  ASSERT_TRUE(field_type_map_.find(ASCIIToUTF16("number4")) ==
+              field_type_map_.end());
+  ASSERT_TRUE(field_type_map_.find(ASCIIToUTF16("month5")) ==
+              field_type_map_.end());
+  ASSERT_TRUE(field_type_map_.find(ASCIIToUTF16("year6")) ==
+              field_type_map_.end());
+}
+
 }  // namespace autofill