Add new /credit_card/country input

Author: oschwald

HISTORY.rst

@@ -3,6 +3,14 @@
 History
 -------
 
+2.7.0
+++++++++++++++++++
+
+* Added the input ``/credit_card/country``. This is the country where the
+  issuer of the card is located. This may be passed instead of
+  ``/credit_card/issuer_id_number`` if you do not wish to pass partial
+  account numbers or if your payment processor does not provide them.
+
 2.6.0 (2022-01-25)
 ++++++++++++++++++
 

minfraud/validation.py

@@ -308,6 +308,7 @@ def _uri(s: str) -> str:
             "bank_name": str,
             "bank_phone_country_code": _telephone_country_code,
             "bank_phone_number": str,
+            "country": _country_code,
             "cvv_result": _single_char,
             "issuer_id_number": _iin,
             "last_digits": _credit_card_last_digits,

tests/data/full-transaction-request.json

@@ -46,6 +46,7 @@
     "decline_code": "invalid number"
   },
   "credit_card": {
+    "country": "US",
     "issuer_id_number": "411111",
     "last_digits": "7643",
     "bank_name": "Bank of No Hope",

tests/test_validation.py

@@ -142,6 +142,12 @@ def test_delivery_speed(self):
 
 
 class TestCreditCard(ValidationBase, unittest.TestCase):
+    def test_country(self):
+        for code in ("CA", "US"):
+            self.check_transaction({"credit_card": {"country": code}})
+        for invalid in (1, None, "", "A1", "Canada"):
+            self.check_invalid_transaction({"credit_card": {"country": invalid}})
+
     def test_issuer_id_number(self):
         for iin in ("123456", "532313", "88888888"):
             self.check_transaction({"credit_card": {"issuer_id_number": iin}})