Accept current SLE, XCG and ZWG currency codes

src/validators/country.py

@@ -206,15 +206,15 @@
     "PAB", "PEN", "PGK", "PHP", "PKR", "PLN", "PYG",
     "QAR",
     "RON", "RSD", "RUB", "RWF",
-    "SAR", "SBD", "SCR", "SDG", "SEK", "SGD", "SHP", "SLL", "SOS",
+    "SAR", "SBD", "SCR", "SDG", "SEK", "SGD", "SHP", "SLE", "SLL", "SOS",
     "SRD", "SSP", "STN", "SVC", "SYP", "SZL",
     "THB", "TJS", "TMT", "TND", "TOP", "TRY", "TTD", "TWD", "TZS",
     "UAH", "UGX", "USD", "UYU", "UZS",
     "VED", "VES", "VND", "VUV",
     "WST",
-    "XAF", "XCD", "XDR", "XOF", "XPF",
+    "XAF", "XCD", "XCG", "XDR", "XOF", "XPF",
     "YER",
-    "ZAR", "ZMW", "ZWL"
+    "ZAR", "ZMW", "ZWG", "ZWL"
 }
 _currency_symbols = {
     # https://en.wikipedia.org/wiki/Currency_sign_(generic)

tests/test_country.py

@@ -82,3 +82,23 @@ def test_returns_failed_validation_invalid_currency(
     assert isinstance(
         currency(value, skip_symbols=skip_symbols, ignore_case=ignore_case), ValidationError
     )
+
+
+@pytest.mark.parametrize("value", ["SLE", "XCG", "ZWG"])
+@pytest.mark.parametrize("skip_symbols", [True, False])
+def test_accepts_current_currency_codes(value: str, skip_symbols: bool):
+    """Accept the current Leone, Caribbean guilder and Zimbabwe Gold codes."""
+    assert currency(value, skip_symbols=skip_symbols) is True
+
+
+@pytest.mark.parametrize("value", ["sle", "xcg", "zwg"])
+def test_current_currency_codes_respect_ignore_case(value: str):
+    """Only accept lowercase currency codes when case-insensitive matching is enabled."""
+    assert isinstance(currency(value), ValidationError)
+    assert currency(value, ignore_case=True) is True
+
+
+@pytest.mark.parametrize("value", ["SLL", "ANG", "ZWL"])
+def test_preserves_legacy_currency_codes(value: str):
+    """Keep previously accepted codes when adding their current replacements."""
+    assert currency(value) is True