def test_min_length_longer():
min_length(3)('aaaa')
def test_min_length_shorter():
with pytest.raises(ValidationError):
min_length(3)('aa')
def test_min_length_equal():
min_length(3)('aaa')
def test_min_length_empty():
with pytest.raises(ValidationError):
min_length(3)('')
