fix b4w real-world import

tests/factories.py

@@ -34,6 +34,13 @@ def _iban() -> str:
     return B4wExportFactory.__faker__.iban()
 
 
+def _other_iban() -> str:
+    faker = B4wExportFactory.__faker__
+    if faker.pyint(min_value=0, max_value=100) < 50:
+        return ""
+    return faker.iban()
+
+
 class B4wExportFactory(ModelFactory[B4wExport]):
     __faker__ = Faker("de_DE")
     __use_examples__ = True
@@ -43,7 +50,7 @@ class B4wExportFactory(ModelFactory[B4wExport]):
     Notes = Use(_sentence)
     RmtdNm = Use(_names)
     OwnrAcctIBAN = Use(_iban)
-    RmtdAcctIBAN = Use(_iban)
+    RmtdAcctIBAN = Use(_other_iban)
 
 
 class ComdirectGiroFactory(ModelFactory[ComdirectGiro]):
@@ -61,4 +68,3 @@ class ComdirectCreditCardFactory(ModelFactory[ComdirectCreditCard]):
 class ComdirectDepotFactory(ModelFactory[ComdirectDepot]):
     __faker__ = Faker("de_DE")
     __use_example__ = True
-

tests/test_model_b4wexport.py

@@ -33,6 +33,27 @@ def test_b4w_export_account_iban_to_short():
         _ = B4wExportFactory.build(OwnrAcctIBAN="DE123")
 
 
+def test_b4w_export_other_iban_empty_is_none():
+    data = B4wExportFactory.build(RmtdAcctIBAN="")
+    assert data.other_iban is None
+
+
+def test_b4w_export_other_iban_blank_is_none():
+    data = B4wExportFactory.build(RmtdAcctIBAN="   ")
+    assert data.other_iban is None
+
+
+def test_b4w_export_other_iban_invalid():
+    with pytest.raises(ValidationError):
+        _ = B4wExportFactory.build(RmtdAcctIBAN="not an IBAN")
+
+
+def test_b4w_export_other_iban_repr_round_trip_empty():
+    data = B4wExportFactory.build(RmtdAcctIBAN="")
+    data2 = eval(str(data))
+    assert data == data2
+
+
 def test_b4w_export_parameters_to_dict():
     data = B4wExportFactory.build()
     params = data.parameters_to_dict()