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			39 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			39 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
| from django.core.exceptions import FieldError
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| from django.test import TestCase
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| 
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| from .models.default_related_name import Author, Book, Editor
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| 
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| 
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| class DefaultRelatedNameTests(TestCase):
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| 
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|     @classmethod
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|     def setUpTestData(cls):
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|         cls.author = Author.objects.create(first_name='Dave', last_name='Loper')
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|         cls.editor = Editor.objects.create(name='Test Editions', bestselling_author=cls.author)
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|         cls.book = Book.objects.create(title='Test Book', editor=cls.editor)
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|         cls.book.authors.add(cls.author)
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| 
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|     def test_no_default_related_name(self):
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|         self.assertEqual(list(self.author.editor_set.all()), [self.editor])
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| 
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|     def test_default_related_name(self):
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|         self.assertEqual(list(self.author.books.all()), [self.book])
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| 
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|     def test_default_related_name_in_queryset_lookup(self):
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|         self.assertEqual(Author.objects.get(books=self.book), self.author)
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| 
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|     def test_model_name_not_available_in_queryset_lookup(self):
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|         msg = "Cannot resolve keyword 'book' into field."
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|         with self.assertRaisesMessage(FieldError, msg):
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|             Author.objects.get(book=self.book)
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| 
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|     def test_related_name_overrides_default_related_name(self):
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|         self.assertEqual(list(self.editor.edited_books.all()), [self.book])
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| 
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|     def test_inheritance(self):
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|         # model_options is the name of the application for this test.
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|         self.assertEqual(list(self.book.model_options_bookstores.all()), [])
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| 
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|     def test_inheritance_with_overridden_default_related_name(self):
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|         self.assertEqual(list(self.book.editor_stores.all()), [])
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