from __future__ import unicode_literals import datetime from django.core.exceptions import FieldError from django.test import TestCase from django.utils import six from .models import Article, Category, Comment class DatesTests(TestCase): def test_related_model_traverse(self): a1 = Article.objects.create( title="First one", pub_date=datetime.date(2005, 7, 28), ) a2 = Article.objects.create( title="Another one", pub_date=datetime.date(2010, 7, 28), ) a3 = Article.objects.create( title="Third one, in the first day", pub_date=datetime.date(2005, 7, 28), ) a1.comments.create( text="Im the HULK!", pub_date=datetime.date(2005, 7, 28), ) a1.comments.create( text="HULK SMASH!", pub_date=datetime.date(2005, 7, 29), ) a2.comments.create( text="LMAO", pub_date=datetime.date(2010, 7, 28), ) a3.comments.create( text="+1", pub_date=datetime.date(2005, 8, 29), ) c = Category.objects.create(name="serious-news") c.articles.add(a1, a3) self.assertQuerysetEqual( Comment.objects.dates("article__pub_date", "year"), [ datetime.date(2005, 1, 1), datetime.date(2010, 1, 1), ], lambda d: d, ) self.assertQuerysetEqual( Comment.objects.dates("article__pub_date", "month"), [ datetime.date(2005, 7, 1), datetime.date(2010, 7, 1), ], lambda d: d ) self.assertQuerysetEqual( Comment.objects.dates("article__pub_date", "day"), [ datetime.date(2005, 7, 28), datetime.date(2010, 7, 28), ], lambda d: d ) self.assertQuerysetEqual( Article.objects.dates("comments__pub_date", "day"), [ datetime.date(2005, 7, 28), datetime.date(2005, 7, 29), datetime.date(2005, 8, 29), datetime.date(2010, 7, 28), ], lambda d: d ) self.assertQuerysetEqual( Article.objects.dates("comments__approval_date", "day"), [] ) self.assertQuerysetEqual( Category.objects.dates("articles__pub_date", "day"), [ datetime.date(2005, 7, 28), ], lambda d: d, ) def test_dates_fails_when_no_arguments_are_provided(self): self.assertRaises( TypeError, Article.objects.dates, ) def test_dates_fails_when_given_invalid_field_argument(self): six.assertRaisesRegex( self, FieldError, "Cannot resolve keyword u?'invalid_field' into field. Choices are: " "categories, comments, id, pub_date, title", Article.objects.dates, "invalid_field", "year", ) def test_dates_fails_when_given_invalid_kind_argument(self): six.assertRaisesRegex( self, AssertionError, "'kind' must be one of 'year', 'month' or 'day'.", Article.objects.dates, "pub_date", "bad_kind", ) def test_dates_fails_when_given_invalid_order_argument(self): six.assertRaisesRegex( self, AssertionError, "'order' must be either 'ASC' or 'DESC'.", Article.objects.dates, "pub_date", "year", order="bad order", )