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Diffstat (limited to 'parts/django/tests/modeltests/aggregation/tests.py')
| -rw-r--r-- | parts/django/tests/modeltests/aggregation/tests.py | 565 |
1 files changed, 0 insertions, 565 deletions
diff --git a/parts/django/tests/modeltests/aggregation/tests.py b/parts/django/tests/modeltests/aggregation/tests.py deleted file mode 100644 index c830368..0000000 --- a/parts/django/tests/modeltests/aggregation/tests.py +++ /dev/null @@ -1,565 +0,0 @@ -import datetime -from decimal import Decimal - -from django.db.models import Avg, Sum, Count, Max, Min -from django.test import TestCase, Approximate - -from models import Author, Publisher, Book, Store - - -class BaseAggregateTestCase(TestCase): - fixtures = ["initial_data.json"] - - def test_empty_aggregate(self): - self.assertEqual(Author.objects.all().aggregate(), {}) - - def test_single_aggregate(self): - vals = Author.objects.aggregate(Avg("age")) - self.assertEqual(vals, {"age__avg": Approximate(37.4, places=1)}) - - def test_multiple_aggregates(self): - vals = Author.objects.aggregate(Sum("age"), Avg("age")) - self.assertEqual(vals, {"age__sum": 337, "age__avg": Approximate(37.4, places=1)}) - - def test_filter_aggregate(self): - vals = Author.objects.filter(age__gt=29).aggregate(Sum("age")) - self.assertEqual(len(vals), 1) - self.assertEqual(vals["age__sum"], 254) - - def test_related_aggregate(self): - vals = Author.objects.aggregate(Avg("friends__age")) - self.assertEqual(len(vals), 1) - self.assertAlmostEqual(vals["friends__age__avg"], 34.07, places=2) - - vals = Book.objects.filter(rating__lt=4.5).aggregate(Avg("authors__age")) - self.assertEqual(len(vals), 1) - self.assertAlmostEqual(vals["authors__age__avg"], 38.2857, places=2) - - vals = Author.objects.all().filter(name__contains="a").aggregate(Avg("book__rating")) - self.assertEqual(len(vals), 1) - self.assertEqual(vals["book__rating__avg"], 4.0) - - vals = Book.objects.aggregate(Sum("publisher__num_awards")) - self.assertEqual(len(vals), 1) - self.assertEquals(vals["publisher__num_awards__sum"], 30) - - vals = Publisher.objects.aggregate(Sum("book__price")) - self.assertEqual(len(vals), 1) - self.assertEqual(vals["book__price__sum"], Decimal("270.27")) - - def test_aggregate_multi_join(self): - vals = Store.objects.aggregate(Max("books__authors__age")) - self.assertEqual(len(vals), 1) - self.assertEqual(vals["books__authors__age__max"], 57) - - vals = Author.objects.aggregate(Min("book__publisher__num_awards")) - self.assertEqual(len(vals), 1) - self.assertEqual(vals["book__publisher__num_awards__min"], 1) - - def test_aggregate_alias(self): - vals = Store.objects.filter(name="Amazon.com").aggregate(amazon_mean=Avg("books__rating")) - self.assertEqual(len(vals), 1) - self.assertAlmostEqual(vals["amazon_mean"], 4.08, places=2) - - def test_annotate_basic(self): - self.assertQuerysetEqual( - Book.objects.annotate().order_by('pk'), [ - "The Definitive Guide to Django: Web Development Done Right", - "Sams Teach Yourself Django in 24 Hours", - "Practical Django Projects", - "Python Web Development with Django", - "Artificial Intelligence: A Modern Approach", - "Paradigms of Artificial Intelligence Programming: Case Studies in Common Lisp" - ], - lambda b: b.name - ) - - books = Book.objects.annotate(mean_age=Avg("authors__age")) - b = books.get(pk=1) - self.assertEqual( - b.name, - u'The Definitive Guide to Django: Web Development Done Right' - ) - self.assertEqual(b.mean_age, 34.5) - - def test_annotate_m2m(self): - books = Book.objects.filter(rating__lt=4.5).annotate(Avg("authors__age")).order_by("name") - self.assertQuerysetEqual( - books, [ - (u'Artificial Intelligence: A Modern Approach', 51.5), - (u'Practical Django Projects', 29.0), - (u'Python Web Development with Django', Approximate(30.3, places=1)), - (u'Sams Teach Yourself Django in 24 Hours', 45.0) - ], - lambda b: (b.name, b.authors__age__avg), - ) - - books = Book.objects.annotate(num_authors=Count("authors")).order_by("name") - self.assertQuerysetEqual( - books, [ - (u'Artificial Intelligence: A Modern Approach', 2), - (u'Paradigms of Artificial Intelligence Programming: Case Studies in Common Lisp', 1), - (u'Practical Django Projects', 1), - (u'Python Web Development with Django', 3), - (u'Sams Teach Yourself Django in 24 Hours', 1), - (u'The Definitive Guide to Django: Web Development Done Right', 2) - ], - lambda b: (b.name, b.num_authors) - ) - - def test_backwards_m2m_annotate(self): - authors = Author.objects.filter(name__contains="a").annotate(Avg("book__rating")).order_by("name") - self.assertQuerysetEqual( - authors, [ - (u'Adrian Holovaty', 4.5), - (u'Brad Dayley', 3.0), - (u'Jacob Kaplan-Moss', 4.5), - (u'James Bennett', 4.0), - (u'Paul Bissex', 4.0), - (u'Stuart Russell', 4.0) - ], - lambda a: (a.name, a.book__rating__avg) - ) - - authors = Author.objects.annotate(num_books=Count("book")).order_by("name") - self.assertQuerysetEqual( - authors, [ - (u'Adrian Holovaty', 1), - (u'Brad Dayley', 1), - (u'Jacob Kaplan-Moss', 1), - (u'James Bennett', 1), - (u'Jeffrey Forcier', 1), - (u'Paul Bissex', 1), - (u'Peter Norvig', 2), - (u'Stuart Russell', 1), - (u'Wesley J. Chun', 1) - ], - lambda a: (a.name, a.num_books) - ) - - def test_reverse_fkey_annotate(self): - books = Book.objects.annotate(Sum("publisher__num_awards")).order_by("name") - self.assertQuerysetEqual( - books, [ - (u'Artificial Intelligence: A Modern Approach', 7), - (u'Paradigms of Artificial Intelligence Programming: Case Studies in Common Lisp', 9), - (u'Practical Django Projects', 3), - (u'Python Web Development with Django', 7), - (u'Sams Teach Yourself Django in 24 Hours', 1), - (u'The Definitive Guide to Django: Web Development Done Right', 3) - ], - lambda b: (b.name, b.publisher__num_awards__sum) - ) - - publishers = Publisher.objects.annotate(Sum("book__price")).order_by("name") - self.assertQuerysetEqual( - publishers, [ - (u'Apress', Decimal("59.69")), - (u"Jonno's House of Books", None), - (u'Morgan Kaufmann', Decimal("75.00")), - (u'Prentice Hall', Decimal("112.49")), - (u'Sams', Decimal("23.09")) - ], - lambda p: (p.name, p.book__price__sum) - ) - - def test_annotate_values(self): - books = list(Book.objects.filter(pk=1).annotate(mean_age=Avg("authors__age")).values()) - self.assertEqual( - books, [ - { - "contact_id": 1, - "id": 1, - "isbn": "159059725", - "mean_age": 34.5, - "name": "The Definitive Guide to Django: Web Development Done Right", - "pages": 447, - "price": Approximate(Decimal("30")), - "pubdate": datetime.date(2007, 12, 6), - "publisher_id": 1, - "rating": 4.5, - } - ] - ) - - books = Book.objects.filter(pk=1).annotate(mean_age=Avg('authors__age')).values('pk', 'isbn', 'mean_age') - self.assertEqual( - list(books), [ - { - "pk": 1, - "isbn": "159059725", - "mean_age": 34.5, - } - ] - ) - - books = Book.objects.filter(pk=1).annotate(mean_age=Avg("authors__age")).values("name") - self.assertEqual( - list(books), [ - { - "name": "The Definitive Guide to Django: Web Development Done Right" - } - ] - ) - - books = Book.objects.filter(pk=1).values().annotate(mean_age=Avg('authors__age')) - self.assertEqual( - list(books), [ - { - "contact_id": 1, - "id": 1, - "isbn": "159059725", - "mean_age": 34.5, - "name": "The Definitive Guide to Django: Web Development Done Right", - "pages": 447, - "price": Approximate(Decimal("30")), - "pubdate": datetime.date(2007, 12, 6), - "publisher_id": 1, - "rating": 4.5, - } - ] - ) - - books = Book.objects.values("rating").annotate(n_authors=Count("authors__id"), mean_age=Avg("authors__age")).order_by("rating") - self.assertEqual( - list(books), [ - { - "rating": 3.0, - "n_authors": 1, - "mean_age": 45.0, - }, - { - "rating": 4.0, - "n_authors": 6, - "mean_age": Approximate(37.16, places=1) - }, - { - "rating": 4.5, - "n_authors": 2, - "mean_age": 34.5, - }, - { - "rating": 5.0, - "n_authors": 1, - "mean_age": 57.0, - } - ] - ) - - authors = Author.objects.annotate(Avg("friends__age")).order_by("name") - self.assertEqual(len(authors), 9) - self.assertQuerysetEqual( - authors, [ - (u'Adrian Holovaty', 32.0), - (u'Brad Dayley', None), - (u'Jacob Kaplan-Moss', 29.5), - (u'James Bennett', 34.0), - (u'Jeffrey Forcier', 27.0), - (u'Paul Bissex', 31.0), - (u'Peter Norvig', 46.0), - (u'Stuart Russell', 57.0), - (u'Wesley J. Chun', Approximate(33.66, places=1)) - ], - lambda a: (a.name, a.friends__age__avg) - ) - - def test_count(self): - vals = Book.objects.aggregate(Count("rating")) - self.assertEqual(vals, {"rating__count": 6}) - - vals = Book.objects.aggregate(Count("rating", distinct=True)) - self.assertEqual(vals, {"rating__count": 4}) - - def test_fkey_aggregate(self): - explicit = list(Author.objects.annotate(Count('book__id'))) - implicit = list(Author.objects.annotate(Count('book'))) - self.assertEqual(explicit, implicit) - - def test_annotate_ordering(self): - books = Book.objects.values('rating').annotate(oldest=Max('authors__age')).order_by('oldest', 'rating') - self.assertEqual( - list(books), [ - { - "rating": 4.5, - "oldest": 35, - }, - { - "rating": 3.0, - "oldest": 45 - }, - { - "rating": 4.0, - "oldest": 57, - }, - { - "rating": 5.0, - "oldest": 57, - } - ] - ) - - books = Book.objects.values("rating").annotate(oldest=Max("authors__age")).order_by("-oldest", "-rating") - self.assertEqual( - list(books), [ - { - "rating": 5.0, - "oldest": 57, - }, - { - "rating": 4.0, - "oldest": 57, - }, - { - "rating": 3.0, - "oldest": 45, - }, - { - "rating": 4.5, - "oldest": 35, - } - ] - ) - - def test_aggregate_annotation(self): - vals = Book.objects.annotate(num_authors=Count("authors__id")).aggregate(Avg("num_authors")) - self.assertEqual(vals, {"num_authors__avg": Approximate(1.66, places=1)}) - - def test_filtering(self): - p = Publisher.objects.create(name='Expensive Publisher', num_awards=0) - Book.objects.create( - name='ExpensiveBook1', - pages=1, - isbn='111', - rating=3.5, - price=Decimal("1000"), - publisher=p, - contact_id=1, - pubdate=datetime.date(2008,12,1) - ) - Book.objects.create( - name='ExpensiveBook2', - pages=1, - isbn='222', - rating=4.0, - price=Decimal("1000"), - publisher=p, - contact_id=1, - pubdate=datetime.date(2008,12,2) - ) - Book.objects.create( - name='ExpensiveBook3', - pages=1, - isbn='333', - rating=4.5, - price=Decimal("35"), - publisher=p, - contact_id=1, - pubdate=datetime.date(2008,12,3) - ) - - publishers = Publisher.objects.annotate(num_books=Count("book__id")).filter(num_books__gt=1).order_by("pk") - self.assertQuerysetEqual( - publishers, [ - "Apress", - "Prentice Hall", - "Expensive Publisher", - ], - lambda p: p.name, - ) - - publishers = Publisher.objects.filter(book__price__lt=Decimal("40.0")).order_by("pk") - self.assertQuerysetEqual( - publishers, [ - "Apress", - "Apress", - "Sams", - "Prentice Hall", - "Expensive Publisher", - ], - lambda p: p.name - ) - - publishers = Publisher.objects.annotate(num_books=Count("book__id")).filter(num_books__gt=1, book__price__lt=Decimal("40.0")).order_by("pk") - self.assertQuerysetEqual( - publishers, [ - "Apress", - "Prentice Hall", - "Expensive Publisher", - ], - lambda p: p.name, - ) - - publishers = Publisher.objects.filter(book__price__lt=Decimal("40.0")).annotate(num_books=Count("book__id")).filter(num_books__gt=1).order_by("pk") - self.assertQuerysetEqual( - publishers, [ - "Apress", - ], - lambda p: p.name - ) - - publishers = Publisher.objects.annotate(num_books=Count("book")).filter(num_books__range=[1, 3]).order_by("pk") - self.assertQuerysetEqual( - publishers, [ - "Apress", - "Sams", - "Prentice Hall", - "Morgan Kaufmann", - "Expensive Publisher", - ], - lambda p: p.name - ) - - publishers = Publisher.objects.annotate(num_books=Count("book")).filter(num_books__range=[1, 2]).order_by("pk") - self.assertQuerysetEqual( - publishers, [ - "Apress", - "Sams", - "Prentice Hall", - "Morgan Kaufmann", - ], - lambda p: p.name - ) - - publishers = Publisher.objects.annotate(num_books=Count("book")).filter(num_books__in=[1, 3]).order_by("pk") - self.assertQuerysetEqual( - publishers, [ - "Sams", - "Morgan Kaufmann", - "Expensive Publisher", - ], - lambda p: p.name, - ) - - publishers = Publisher.objects.annotate(num_books=Count("book")).filter(num_books__isnull=True) - self.assertEqual(len(publishers), 0) - - def test_annotation(self): - vals = Author.objects.filter(pk=1).aggregate(Count("friends__id")) - self.assertEqual(vals, {"friends__id__count": 2}) - - books = Book.objects.annotate(num_authors=Count("authors__name")).filter(num_authors__ge=2).order_by("pk") - self.assertQuerysetEqual( - books, [ - "The Definitive Guide to Django: Web Development Done Right", - "Artificial Intelligence: A Modern Approach", - ], - lambda b: b.name - ) - - authors = Author.objects.annotate(num_friends=Count("friends__id", distinct=True)).filter(num_friends=0).order_by("pk") - self.assertQuerysetEqual( - authors, [ - "Brad Dayley", - ], - lambda a: a.name - ) - - publishers = Publisher.objects.annotate(num_books=Count("book__id")).filter(num_books__gt=1).order_by("pk") - self.assertQuerysetEqual( - publishers, [ - "Apress", - "Prentice Hall", - ], - lambda p: p.name - ) - - publishers = Publisher.objects.filter(book__price__lt=Decimal("40.0")).annotate(num_books=Count("book__id")).filter(num_books__gt=1) - self.assertQuerysetEqual( - publishers, [ - "Apress", - ], - lambda p: p.name - ) - - books = Book.objects.annotate(num_authors=Count("authors__id")).filter(authors__name__contains="Norvig", num_authors__gt=1) - self.assertQuerysetEqual( - books, [ - "Artificial Intelligence: A Modern Approach", - ], - lambda b: b.name - ) - - def test_more_aggregation(self): - a = Author.objects.get(name__contains='Norvig') - b = Book.objects.get(name__contains='Done Right') - b.authors.add(a) - b.save() - - vals = Book.objects.annotate(num_authors=Count("authors__id")).filter(authors__name__contains="Norvig", num_authors__gt=1).aggregate(Avg("rating")) - self.assertEqual(vals, {"rating__avg": 4.25}) - - def test_even_more_aggregate(self): - publishers = Publisher.objects.annotate(earliest_book=Min("book__pubdate")).exclude(earliest_book=None).order_by("earliest_book").values() - self.assertEqual( - list(publishers), [ - { - 'earliest_book': datetime.date(1991, 10, 15), - 'num_awards': 9, - 'id': 4, - 'name': u'Morgan Kaufmann' - }, - { - 'earliest_book': datetime.date(1995, 1, 15), - 'num_awards': 7, - 'id': 3, - 'name': u'Prentice Hall' - }, - { - 'earliest_book': datetime.date(2007, 12, 6), - 'num_awards': 3, - 'id': 1, - 'name': u'Apress' - }, - { - 'earliest_book': datetime.date(2008, 3, 3), - 'num_awards': 1, - 'id': 2, - 'name': u'Sams' - } - ] - ) - - vals = Store.objects.aggregate(Max("friday_night_closing"), Min("original_opening")) - self.assertEqual( - vals, - { - "friday_night_closing__max": datetime.time(23, 59, 59), - "original_opening__min": datetime.datetime(1945, 4, 25, 16, 24, 14), - } - ) - - def test_annotate_values_list(self): - books = Book.objects.filter(pk=1).annotate(mean_age=Avg("authors__age")).values_list("pk", "isbn", "mean_age") - self.assertEqual( - list(books), [ - (1, "159059725", 34.5), - ] - ) - - books = Book.objects.filter(pk=1).annotate(mean_age=Avg("authors__age")).values_list("isbn") - self.assertEqual( - list(books), [ - ('159059725',) - ] - ) - - books = Book.objects.filter(pk=1).annotate(mean_age=Avg("authors__age")).values_list("mean_age") - self.assertEqual( - list(books), [ - (34.5,) - ] - ) - - books = Book.objects.filter(pk=1).annotate(mean_age=Avg("authors__age")).values_list("mean_age", flat=True) - self.assertEqual(list(books), [34.5]) - - books = Book.objects.values_list("price").annotate(count=Count("price")).order_by("-count", "price") - self.assertEqual( - list(books), [ - (Decimal("29.69"), 2), - (Decimal('23.09'), 1), - (Decimal('30'), 1), - (Decimal('75'), 1), - (Decimal('82.8'), 1), - ] - ) |