def test_sv_min():
sv = String(min=2, accept_python=False)
assert sv.to_python("foo") == "foo"
assert validate(sv, "x") == messages('tooShort', None, min=2)
assert validate(sv, None) == messages('empty', None)
# should be completely invalid?
assert validate(sv, []) == messages('empty', None, min=2)
assert sv.from_python(['x', 'y']) == 'x, y'
def test_sv_string_conversion():
sv = String(not_empty=False)
assert sv.from_python(2) == "2"
assert sv.from_python([]) == ""
