import datetime

from django import forms

from django.test import TestCase

from .models import Article

class FormsTests(TestCase):

    # ForeignObjects should not have any form fields, currently the user needs

    # to manually deal with the foreignobject relation.

    class ArticleForm(forms.ModelForm):

        class Meta:

            model = Article

            fields = "__all__"

    def test_foreign_object_form(self):

        # A very crude test checking that the non-concrete fields do not get

        # form fields.

        form = FormsTests.ArticleForm()

        self.assertIn("id_pub_date", form.as_table())

        self.assertNotIn("active_translation", form.as_table())

        form = FormsTests.ArticleForm(data={"pub_date": str(datetime.date.today())})

        self.assertTrue(form.is_valid())

        a = form.save()

        self.assertEqual(a.pub_date, datetime.date.today())

        form = FormsTests.ArticleForm(instance=a, data={"pub_date": "2013-01-01"})

        a2 = form.save()

        self.assertEqual(a.pk, a2.pk)

        self.assertEqual(a2.pub_date, datetime.date(2013, 1, 1))