from django.conf import settings

from selectable.forms import BaseLookupForm
from selectable.tests.base import BaseSelectableTestCase, PatchSettingsMixin


__all__ = (
    'BaseLookupFormTestCase',
)


class BaseLookupFormTestCase(PatchSettingsMixin, BaseSelectableTestCase):

    def get_valid_data(self):
        data = {
            'term': 'foo',
            'limit': 10,
        }
        return data

    def test_valid_data(self):
        data = self.get_valid_data()
        form = BaseLookupForm(data)
        self.assertTrue(form.is_valid(), "%s" % form.errors)

    def test_invalid_limit(self):
        """
        Test giving the form an invalid limit.
        """

        data = self.get_valid_data()
        data['limit'] = 'bar'
        form = BaseLookupForm(data)
        self.assertFalse(form.is_valid())

    def test_no_limit(self):
        """
        If SELECTABLE_MAX_LIMIT is set and limit is not given then
        the form will return SELECTABLE_MAX_LIMIT.
        """

        data = self.get_valid_data()
        if 'limit' in data:
            del data['limit']
        form = BaseLookupForm(data)
        self.assertTrue(form.is_valid(), "%s" % form.errors)
        self.assertEqual(form.cleaned_data['limit'], settings.SELECTABLE_MAX_LIMIT)

    def test_no_max_set(self):
        """
        If SELECTABLE_MAX_LIMIT is not set but given then the form
        will return the given limit.
        """

        settings.SELECTABLE_MAX_LIMIT = None
        data = self.get_valid_data()
        form = BaseLookupForm(data)
        self.assertTrue(form.is_valid(), "%s" % form.errors)
        if 'limit' in data:
            self.assertTrue(form.cleaned_data['limit'], data['limit'])

    def test_no_max_set_not_given(self):
        """
        If SELECTABLE_MAX_LIMIT is not set and not given then the form
        will return no limit.
        """

        settings.SELECTABLE_MAX_LIMIT = None
        data = self.get_valid_data()
        if 'limit' in data:
            del data['limit']
        form = BaseLookupForm(data)
        self.assertTrue(form.is_valid(), "%s" % form.errors)
        self.assertFalse(form.cleaned_data.get('limit'))

    def test_over_limit(self):
        """
        If SELECTABLE_MAX_LIMIT is set and limit given is greater then
        the form will return SELECTABLE_MAX_LIMIT.
        """

        data = self.get_valid_data()
        data['limit'] = settings.SELECTABLE_MAX_LIMIT + 100
        form = BaseLookupForm(data)
        self.assertTrue(form.is_valid(), "%s" % form.errors)
        self.assertEqual(form.cleaned_data['limit'], settings.SELECTABLE_MAX_LIMIT)