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25 changes: 25 additions & 0 deletions tests/test_iban.py
Original file line number Diff line number Diff line change
Expand Up @@ -17,3 +17,28 @@ def test_returns_true_on_valid_iban(value: str):
def test_returns_failed_validation_on_invalid_iban(value: str):
"""Test returns failed validation on invalid iban."""
assert isinstance(iban(value), ValidationError)


@pytest.mark.parametrize("value", [" ", "\t", "\n"])
def test_returns_failed_validation_on_whitespace_only_iban(value: str):
"""Test returns failed validation on whitespace-only iban."""
assert isinstance(iban(value), ValidationError)


@pytest.mark.parametrize("value", ["gb82west12345698765432", "no9386011117947"])
def test_returns_failed_validation_on_lowercase_iban(value: str):
"""Test returns failed validation on lowercase iban (no normalization)."""
assert isinstance(iban(value), ValidationError)


@pytest.mark.parametrize(
"value",
[
"XX82WEST12345698765432",
"ZZ9386011117947",
"QQ12345678901234567890123",
],
)
def test_returns_failed_validation_on_invalid_country_code(value: str):
"""Test returns failed validation on invalid country code prefix."""
assert isinstance(iban(value), ValidationError)