def test_raises_error_for_invalid_abn(self):
"""Test that an ABN must pass the ATO's validation algorithm."""
invalid_abn = '53004085617'
validator = AUBusinessNumberFieldValidator()
self.assertRaises(ValidationError, lambda: validator(invalid_abn))
def test_raises_error_for_too_short_abn(self):
"""Test an ABN with fewer than eleven digits is invalid."""
invalid_abn = '5300408561'
validator = AUBusinessNumberFieldValidator()
self.assertRaises(ValidationError, lambda: validator(invalid_abn))
def test_no_error_for_a_valid_abn(self):
"""Test a valid ABN does not cause an error."""
valid_abn = '53004085616'
validator = AUBusinessNumberFieldValidator()
validator(valid_abn)
def test_raises_error_for_abn_containing_a_letter(self):
"""Test an ABN containing a letter is invalid."""
invalid_abn = '5300408561A'
validator = AUBusinessNumberFieldValidator()
self.assertRaises(ValidationError, lambda: validator(invalid_abn))
def test_raises_error_for_whitespace(self):
"""Test an ABN can be valid when it contains whitespace."""
# NB: Form field should strip the whitespace before regex validation is run.
invalid_abn = '5300 4085 616'
validator = AUBusinessNumberFieldValidator()
self.assertRaises(ValidationError, lambda: validator(invalid_abn))