from handle_params import HandleParams, ValidationError
import pytest, re

def regex_validator(regex, error_message):

    def _validate(_, value):
        if len(value) > 0:
            m = re.search(regex, value)
        else:
            return

        if m:
            return value
        else:
            raise ValidationError(error_message)

    return _validate


def test_hp_init():
    hp = HandleParams()


def test_hp_with_text_field():
    hp = HandleParams()
    hp.add_field('name', {
        'validate': regex_validator(
            r'^([A-Z]\S+\.?) ([A-Z]\S+\.? )?([A-Z]\S+\.?)$',
            'Does not look like a name'
        )
    })
    hp.validate_params({
        'name': 'Florian Heß'
    })
    assert hp.fields['name'].value == 'Florian Heß'
    with pytest.raises(ValidationError):
        assert hp.validate_params({ 'name': '123' })