Converted get_or_create_regress tests from doctests to unittests. We have always been at war with doctests.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@14177 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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from django.db import models
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from django.db import models
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class Publisher(models.Model):
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class Publisher(models.Model):
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name = models.CharField(max_length=100)
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name = models.CharField(max_length=100)
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@ -10,82 +11,3 @@ class Book(models.Model):
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name = models.CharField(max_length=100)
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name = models.CharField(max_length=100)
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authors = models.ManyToManyField(Author, related_name='books')
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authors = models.ManyToManyField(Author, related_name='books')
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publisher = models.ForeignKey(Publisher, related_name='books')
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publisher = models.ForeignKey(Publisher, related_name='books')
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__test__ = {'one':"""
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#
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# RelatedManager
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#
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# First create a Publisher.
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>>> p = Publisher.objects.create(name='Acme Publishing')
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# Create a book through the publisher.
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>>> book, created = p.books.get_or_create(name='The Book of Ed & Fred')
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>>> created
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True
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# The publisher should have one book.
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>>> p.books.count()
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1
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# Try get_or_create again, this time nothing should be created.
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>>> book, created = p.books.get_or_create(name='The Book of Ed & Fred')
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>>> created
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False
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# And the publisher should still have one book.
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>>> p.books.count()
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1
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#
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# ManyRelatedManager
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#
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# Add an author to the book.
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>>> ed, created = book.authors.get_or_create(name='Ed')
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>>> created
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True
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# Book should have one author.
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>>> book.authors.count()
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1
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# Try get_or_create again, this time nothing should be created.
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>>> ed, created = book.authors.get_or_create(name='Ed')
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>>> created
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False
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# And the book should still have one author.
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>>> book.authors.count()
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1
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# Add a second author to the book.
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>>> fred, created = book.authors.get_or_create(name='Fred')
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>>> created
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True
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# The book should have two authors now.
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>>> book.authors.count()
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2
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# Create an Author not tied to any books.
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>>> Author.objects.create(name='Ted')
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<Author: Author object>
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# There should be three Authors in total. The book object should have two.
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>>> Author.objects.count()
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3
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>>> book.authors.count()
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2
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# Try creating a book through an author.
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>>> ed.books.get_or_create(name="Ed's Recipies", publisher=p)
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(<Book: Book object>, True)
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# Now Ed has two Books, Fred just one.
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>>> ed.books.count()
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2
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>>> fred.books.count()
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1
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"""}
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from django.test import TestCase
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from models import Author, Publisher
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class GetOrCreateTests(TestCase):
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def test_related(self):
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p = Publisher.objects.create(name="Acme Publishing")
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# Create a book through the publisher.
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book, created = p.books.get_or_create(name="The Book of Ed & Fred")
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self.assertTrue(created)
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# The publisher should have one book.
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self.assertEqual(p.books.count(), 1)
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# Try get_or_create again, this time nothing should be created.
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book, created = p.books.get_or_create(name="The Book of Ed & Fred")
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self.assertFalse(created)
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# And the publisher should still have one book.
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self.assertEqual(p.books.count(), 1)
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# Add an author to the book.
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ed, created = book.authors.get_or_create(name="Ed")
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self.assertTrue(created)
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# Book should have one author.
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self.assertEqual(book.authors.count(), 1)
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# Try get_or_create again, this time nothing should be created.
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ed, created = book.authors.get_or_create(name="Ed")
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self.assertFalse(created)
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# And the book should still have one author.
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self.assertEqual(book.authors.count(), 1)
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# Add a second author to the book.
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fred, created = book.authors.get_or_create(name="Fred")
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self.assertTrue(created)
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# The book should have two authors now.
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self.assertEqual(book.authors.count(), 2)
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# Create an Author not tied to any books.
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Author.objects.create(name="Ted")
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# There should be three Authors in total. The book object should have two.
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self.assertEqual(Author.objects.count(), 3)
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self.assertEqual(book.authors.count(), 2)
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# Try creating a book through an author.
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_, created = ed.books.get_or_create(name="Ed's Recipes", publisher=p)
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self.assertTrue(created)
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# Now Ed has two Books, Fred just one.
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self.assertEqual(ed.books.count(), 2)
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self.assertEqual(fred.books.count(), 1)
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