import re

from django.test import TestCase
from forms import AustralianPlaceForm

SELECTED_OPTION_PATTERN = r'<option value="%s" selected="selected">'
BLANK_OPTION_PATTERN = r'<option value="">'
INPUT_VALUE_PATTERN = r'<input[^>]*value="%s"[^>]*>'


class AULocalflavorTests(TestCase):
    def setUp(self):
        self.form = AustralianPlaceForm(
            {'state':'WA',
             'state_required':'QLD',
             'name':'dummy',
             'postcode':'1234',
             'postcode_required':'4321',
             })

    def test_get_display_methods(self):
        """ Ensure get_*_display() methods are added to model instances. """
        place = self.form.save()
        self.assertEqual(place.get_state_display(), 'Western Australia')
        self.assertEqual(place.get_state_required_display(), 'Queensland')

    def test_default_values(self):
        """ Ensure that default values are selected in forms. """
        form = AustralianPlaceForm()
        self.assertTrue(re.search(SELECTED_OPTION_PATTERN % 'NSW',
                                  str(form['state_default'])))
        self.assertTrue(re.search(INPUT_VALUE_PATTERN % '2500',
                                  str(form['postcode_default'])))

    def test_required(self):
        """ Test that required AUStateFields throw appropriate errors. """
        form = AustralianPlaceForm({'state':'NSW', 'name':'Wollongong'})
        self.assertFalse(form.is_valid())
        self.assertEqual(
            form.errors['state_required'], [u'This field is required.'])
        self.assertEqual(
            form.errors['postcode_required'], [u'This field is required.'])

    def test_field_blank_option(self):
        """ Test that the empty option is there. """
        self.assertTrue(re.search(BLANK_OPTION_PATTERN,
                                  str(self.form['state'])))

    def test_selected_values(self):
        """ Ensure selected states match the initial values provided. """
        self.assertTrue(re.search(SELECTED_OPTION_PATTERN % 'WA',
                                  str(self.form['state'])))
        self.assertTrue(re.search(SELECTED_OPTION_PATTERN % 'QLD',
                                  str(self.form['state_required'])))
        self.assertTrue(re.search(INPUT_VALUE_PATTERN % '1234',
                                  str(self.form['postcode'])))
        self.assertTrue(re.search(INPUT_VALUE_PATTERN % '4321',
                                  str(self.form['postcode_required'])))