def test_category2(self):
"""Slugs are unique.
"""
root_category = Category(
name='root', slug='root')
root_category.save()
second_root_category = Category(
name='root', slug='root')
self.assertRaises(IntegrityError, second_root_category.save)
def test_no_infinite_recursion_in_unicode(self):
"""Pointing a category's parent field at itself would give an infinite
recursion error in __unicode__().
"""
category = Category(
name='root', slug='root')
category.save()
category.parent = category
self.assertRaises(ValidationError, category.save)
def test_category(self):
"""Adding parents and childs.
"""
root_category = Category(
name='root', slug='root')
root_category.save()
child_category = Category(
name='child',
slug='child',
parent=root_category)
child_category.save()
children = root_category.get_children()
self.assertEquals(len(children), 1)
self.assertEquals(str(children[0]), str(child_category))