mirror of
https://github.com/Hopiu/django-cachalot.git
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Adds a test suite.
This commit is contained in:
Bertrand Bordage
parent
beeda120ac
commit
65f064bae7
2 changed files with 672 additions and 0 deletions
644
cachalot/tests.py
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644
cachalot/tests.py
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# coding: utf-8
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from __future__ import unicode_literals
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from unittest import skip
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import datetime
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from django.conf import settings
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from django.contrib.auth.models import User, Permission
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from django.core.cache import cache
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from django.db.models import (
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Model, CharField, ForeignKey, BooleanField,
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DateField, DateTimeField, Count)
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from django.test import TestCase
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class Test(Model):
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name = CharField(max_length=20)
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owner = ForeignKey(settings.AUTH_USER_MODEL, null=True, blank=True)
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public = BooleanField(default=False)
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date = DateField(null=True, blank=True)
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datetime = DateTimeField(null=True, blank=True)
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class Meta(object):
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ordering = ('name',)
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def __str__(self):
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return self.name
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class ReadTestCase(TestCase):
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"""
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Tests if every SQL request that only reads data is cached.
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The only exception is for requests that don’t go through the ORM, using
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``QuerySet.extra`` with ``select`` or ``where`` arguments,
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``Model.objects.raw``, or ``cursor.execute``.
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"""
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def setUp(self):
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self.user = User.objects.create_user('user')
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self.user__permissions = list(Permission.objects.all()[:3])
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self.user.user_permissions.add(*self.user__permissions)
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self.admin = User.objects.create_superuser('admin', 'admin@test.me',
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'password')
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self.t1 = Test.objects.create(
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name='test1', owner=self.user,
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date='1789-07-14', datetime='1789-07-14T16:43:27')
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self.t2 = Test.objects.create(
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name='test2', owner=self.admin, public=True,
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date='1944-06-06', datetime='1944-06-06T06:35:00')
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# TODO: Move this to setUpClass when cachalot will handle transactions.
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cache.clear()
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def test_empty(self):
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with self.assertNumQueries(0):
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data1 = list(Test.objects.none())
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with self.assertNumQueries(0):
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data2 = list(Test.objects.none())
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self.assertListEqual(data2, data1)
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self.assertListEqual(data2, [])
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def test_exists(self):
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with self.assertNumQueries(1):
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n1 = Test.objects.exists()
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with self.assertNumQueries(0):
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n2 = Test.objects.exists()
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self.assertEqual(n2, n1)
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self.assertTrue(n2)
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def test_count(self):
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with self.assertNumQueries(1):
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n1 = Test.objects.count()
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with self.assertNumQueries(0):
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n2 = Test.objects.count()
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self.assertEqual(n2, n1)
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self.assertEqual(n2, 2)
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def test_get(self):
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with self.assertNumQueries(1):
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data1 = Test.objects.get(name='test1')
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with self.assertNumQueries(0):
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data2 = Test.objects.get(name='test1')
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self.assertEqual(data2, data1)
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self.assertEqual(data2, self.t1)
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def test_first(self):
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with self.assertNumQueries(1):
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data1 = Test.objects.first()
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with self.assertNumQueries(0):
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data2 = Test.objects.first()
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self.assertEqual(data2, data1)
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self.assertEqual(data2, self.t1)
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def test_last(self):
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with self.assertNumQueries(1):
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data1 = Test.objects.last()
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with self.assertNumQueries(0):
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data2 = Test.objects.last()
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self.assertEqual(data2, data1)
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self.assertEqual(data2, self.t2)
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def test_all(self):
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with self.assertNumQueries(1):
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data1 = list(Test.objects.all())
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with self.assertNumQueries(0):
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data2 = list(Test.objects.all())
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self.assertListEqual(data2, data1)
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self.assertListEqual(data2, [self.t1, self.t2])
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def test_filter(self):
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with self.assertNumQueries(1):
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data1 = list(Test.objects.filter(public=True))
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with self.assertNumQueries(0):
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data2 = list(Test.objects.filter(public=True))
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self.assertListEqual(data2, data1)
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self.assertListEqual(data2, [self.t2])
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with self.assertNumQueries(1):
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data1 = list(Test.objects.filter(pk__in=range(2, 10)))
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with self.assertNumQueries(0):
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data2 = list(Test.objects.filter(pk__in=range(2, 10)))
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self.assertListEqual(data2, data1)
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self.assertListEqual(data2, [self.t2])
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def test_filter_empty(self):
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with self.assertNumQueries(1):
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data1 = list(Test.objects.filter(public=True,
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name='user'))
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with self.assertNumQueries(0):
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data2 = list(Test.objects.filter(public=True,
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name='user'))
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self.assertListEqual(data2, data1)
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self.assertListEqual(data2, [])
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def test_exclude(self):
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with self.assertNumQueries(1):
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data1 = list(Test.objects.exclude(public=True))
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with self.assertNumQueries(0):
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data2 = list(Test.objects.exclude(public=True))
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self.assertListEqual(data2, data1)
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self.assertListEqual(data2, [self.t1])
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with self.assertNumQueries(1):
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data1 = list(Test.objects.exclude(pk__in=range(2, 10)))
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with self.assertNumQueries(0):
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data2 = list(Test.objects.exclude(pk__in=range(2, 10)))
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self.assertListEqual(data2, data1)
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self.assertListEqual(data2, [self.t1])
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def test_slicing(self):
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with self.assertNumQueries(1):
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data1 = list(Test.objects.all()[:1])
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with self.assertNumQueries(0):
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data2 = list(Test.objects.all()[:1])
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self.assertListEqual(data2, data1)
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self.assertListEqual(data2, [self.t1])
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def test_order_by(self):
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with self.assertNumQueries(1):
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data1 = list(Test.objects.order_by('pk'))
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with self.assertNumQueries(0):
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data2 = list(Test.objects.order_by('pk'))
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self.assertListEqual(data2, data1)
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self.assertListEqual(data2, [self.t1, self.t2])
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with self.assertNumQueries(1):
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data1 = list(Test.objects.order_by('-name'))
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with self.assertNumQueries(0):
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data2 = list(Test.objects.order_by('-name'))
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self.assertListEqual(data2, data1)
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self.assertListEqual(data2, [self.t2, self.t1])
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def test_reverse(self):
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with self.assertNumQueries(1):
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data1 = list(Test.objects.reverse())
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with self.assertNumQueries(0):
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data2 = list(Test.objects.reverse())
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self.assertListEqual(data2, data1)
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self.assertListEqual(data2, [self.t2, self.t1])
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def test_distinct(self):
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# We ensure that the query without distinct should return duplicate
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# objects, in order to have a real-world example.
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data1 = list(Test.objects.filter(
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owner__user_permissions__content_type__app_label='auth'))
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self.assertEqual(len(data1), 3)
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self.assertListEqual(data1, [self.t1] * 3)
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with self.assertNumQueries(1):
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data2 = list(Test.objects.filter(
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owner__user_permissions__content_type__app_label='auth'
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).distinct())
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with self.assertNumQueries(0):
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data3 = list(Test.objects.filter(
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owner__user_permissions__content_type__app_label='auth'
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).distinct())
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self.assertListEqual(data3, data2)
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self.assertEqual(len(data3), 1)
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self.assertListEqual(data3, [self.t1])
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def test_iterator(self):
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with self.assertNumQueries(1):
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data1 = list(Test.objects.iterator())
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with self.assertNumQueries(0):
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data2 = list(Test.objects.iterator())
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self.assertListEqual(data2, data1)
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self.assertListEqual(data2, [self.t1, self.t2])
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def test_in_bulk(self):
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with self.assertNumQueries(1):
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data1 = Test.objects.in_bulk((7, 2, 5))
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with self.assertNumQueries(0):
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data2 = Test.objects.in_bulk((7, 2, 5))
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self.assertDictEqual(data2, data1)
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self.assertDictEqual(data2, {2: self.t2})
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def test_values(self):
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with self.assertNumQueries(1):
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data1 = list(Test.objects.values('name', 'public'))
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with self.assertNumQueries(0):
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data2 = list(Test.objects.values('name', 'public'))
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self.assertEqual(len(data1), 2)
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self.assertEqual(len(data2), 2)
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for row1, row2 in zip(data1, data2):
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self.assertDictEqual(row2, row1)
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self.assertDictEqual(data2[0], {'name': 'test1', 'public': False})
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self.assertDictEqual(data2[1], {'name': 'test2', 'public': True})
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def test_values_list(self):
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with self.assertNumQueries(1):
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data1 = list(Test.objects.values_list('name', flat=True))
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with self.assertNumQueries(0):
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data2 = list(Test.objects.values_list('name', flat=True))
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self.assertListEqual(data2, data1)
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self.assertListEqual(data2, ['test1', 'test2'])
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def test_earliest(self):
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with self.assertNumQueries(1):
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data1 = Test.objects.earliest('date')
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with self.assertNumQueries(0):
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data2 = Test.objects.earliest('date')
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self.assertEqual(data2, data1)
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self.assertEqual(data2, self.t1)
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def test_latest(self):
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with self.assertNumQueries(1):
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data1 = Test.objects.latest('date')
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with self.assertNumQueries(0):
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data2 = Test.objects.latest('date')
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self.assertEqual(data2, data1)
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self.assertEqual(data2, self.t2)
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def test_dates(self):
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with self.assertNumQueries(1):
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data1 = list(Test.objects.dates('date', 'year'))
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with self.assertNumQueries(0):
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data2 = list(Test.objects.dates('date', 'year'))
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self.assertListEqual(data2, data1)
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self.assertListEqual(data2, [datetime.date(1789, 1, 1),
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datetime.date(1944, 1, 1)])
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def test_datetimes(self):
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with self.assertNumQueries(1):
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data1 = list(Test.objects.datetimes('datetime', 'hour'))
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with self.assertNumQueries(0):
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data2 = list(Test.objects.datetimes('datetime', 'hour'))
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self.assertListEqual(data2, data1)
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self.assertListEqual(data2, [datetime.datetime(1789, 7, 14, 16),
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datetime.datetime(1944, 6, 6, 6)])
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def test_subquery(self):
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with self.assertNumQueries(1):
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data1 = list(Test.objects.filter(owner__in=User.objects.all()))
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with self.assertNumQueries(0):
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data2 = list(Test.objects.filter(owner__in=User.objects.all()))
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self.assertListEqual(data2, data1)
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self.assertListEqual(data2, [self.t1, self.t2])
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def test_aggregate(self):
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Test.objects.create(name='test3', owner=self.user)
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with self.assertNumQueries(1):
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n1 = User.objects.aggregate(n=Count('test'))['n']
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with self.assertNumQueries(0):
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n2 = User.objects.aggregate(n=Count('test'))['n']
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self.assertEqual(n2, n1)
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self.assertEqual(n2, 3)
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def test_annotate(self):
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Test.objects.create(name='test3', owner=self.user)
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with self.assertNumQueries(1):
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data1 = list(User.objects.annotate(n=Count('test'))
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.values_list('n', flat=True))
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with self.assertNumQueries(0):
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data2 = list(User.objects.annotate(n=Count('test'))
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.values_list('n', flat=True))
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self.assertListEqual(data2, data1)
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self.assertListEqual(data2, [2, 1])
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def test_only(self):
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with self.assertNumQueries(1):
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t1 = Test.objects.only('name').first()
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t1.name
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with self.assertNumQueries(0):
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t2 = Test.objects.only('name').first()
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t2.name
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with self.assertNumQueries(1):
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t1.public
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with self.assertNumQueries(0):
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t2.public
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self.assertEqual(t2, t1)
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self.assertEqual(t2.name, t1.name)
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self.assertEqual(t2.public, t1.public)
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def test_defer(self):
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with self.assertNumQueries(1):
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t1 = Test.objects.defer('name').first()
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t1.public
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with self.assertNumQueries(0):
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t2 = Test.objects.defer('name').first()
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t2.public
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with self.assertNumQueries(1):
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t1.name
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with self.assertNumQueries(0):
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t2.name
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self.assertEqual(t2, t1)
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self.assertEqual(t2.name, t1.name)
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self.assertEqual(t2.public, t1.public)
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def test_select_related(self):
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with self.assertNumQueries(1):
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t1 = Test.objects.select_related('owner').get(name='test1')
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self.assertEqual(t1.owner, self.user)
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with self.assertNumQueries(0):
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t2 = Test.objects.select_related('owner').get(name='test1')
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self.assertEqual(t2.owner, self.user)
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self.assertEqual(t2, t1)
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self.assertEqual(t2, self.t1)
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def test_prefetch_related(self):
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with self.assertNumQueries(2):
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qs = (Test.objects.select_related('owner')
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.prefetch_related('owner__user_permissions'))
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permissions1 = []
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for t in qs:
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permissions1.extend(t.owner.user_permissions.all())
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with self.assertNumQueries(0):
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qs = (Test.objects.select_related('owner')
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.prefetch_related('owner__user_permissions'))
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permissions2 = []
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for t in qs:
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permissions2.extend(t.owner.user_permissions.all())
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self.assertListEqual(permissions2, permissions1)
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self.assertListEqual(permissions2, self.user__permissions)
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@skip(NotImplementedError)
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def test_using(self):
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pass
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@skip(NotImplementedError)
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def test_select_for_update(self):
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pass
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def test_extra_select(self):
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"""
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Tests if ``QuerySet.extra(select=…)`` is not cached.
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"""
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username_length_sql = """
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SELECT LENGTH(%(user_table)s.username)
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FROM %(user_table)s
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WHERE %(user_table)s.id = %(test_table)s.owner_id
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""" % {'user_table': User._meta.db_table,
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'test_table': Test._meta.db_table}
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with self.assertNumQueries(1):
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data1 = list(Test.objects.extra(
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select={'username_length': username_length_sql}))
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with self.assertNumQueries(1):
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data2 = list(Test.objects.extra(
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select={'username_length': username_length_sql}))
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self.assertListEqual(data2, data1)
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self.assertListEqual([o.username_length for o in data2],
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[o.username_length for o in data1])
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self.assertListEqual([o.username_length for o in data2],
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[4, 5])
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def test_extra_where(self):
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"""
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Tests if ``QuerySet.extra(where=…)`` is not cached.
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The ``where`` list of a ``QuerySet.extra`` can contain subqueries,
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and since it’s unparsed pure SQL, it can’t be reliably invalidated.
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"""
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sql_condition = ('owner_id IN '
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'(SELECT id FROM auth_user WHERE username = "admin")')
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with self.assertNumQueries(1):
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data1 = list(Test.objects.extra(where=[sql_condition]))
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with self.assertNumQueries(1):
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data2 = list(Test.objects.extra(where=[sql_condition]))
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self.assertListEqual(data2, data1)
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self.assertListEqual(data2, [self.t2])
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def test_extra_tables(self):
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"""
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Tests if ``QuerySet.extra(tables=…)`` is cached.
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``tables`` can only define table names, so we can reliably invalidate
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such queries.
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"""
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# QUESTION: Is there a way to access extra tables data without
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# an extra select?
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with self.assertNumQueries(1):
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list(Test.objects.extra(tables=['auth_user']))
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with self.assertNumQueries(0):
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list(Test.objects.extra(tables=['auth_user']))
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with self.assertNumQueries(0):
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list(Test.objects.extra(tables=['"auth_user"']))
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def test_extra_order_by(self):
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"""
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Tests if ``QuerySet.extra(order_by=…)`` is cached.
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As far as I know, the ``order_by`` list of a ``QuerySet.extra``
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can’t select data from other tables.
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"""
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with self.assertNumQueries(1):
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data1 = list(Test.objects.extra(order_by=['-cachalot_test.name']))
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with self.assertNumQueries(0):
|
||||
data2 = list(Test.objects.extra(order_by=['-cachalot_test.name']))
|
||||
self.assertListEqual(data2, data1)
|
||||
self.assertListEqual(data2, [self.t2, self.t1])
|
||||
|
||||
def test_raw(self):
|
||||
"""
|
||||
Tests if ``Model.objects.raw`` queries are not cached.
|
||||
"""
|
||||
|
||||
sql = 'SELECT * FROM %s;' % Test._meta.db_table
|
||||
|
||||
with self.assertNumQueries(1):
|
||||
data1 = list(Test.objects.raw(sql))
|
||||
with self.assertNumQueries(1):
|
||||
data2 = list(Test.objects.raw(sql))
|
||||
self.assertListEqual(data2, data1)
|
||||
self.assertListEqual(data2, [self.t1, self.t2])
|
||||
|
||||
@skip('For an unknown reason, we can’t measure how many requests are '
|
||||
'executed by ``cursor.execute``.')
|
||||
def test_cursor_execute(self):
|
||||
"""
|
||||
Tests if queries executed from a DB cursor are not cached.
|
||||
"""
|
||||
|
||||
sql = 'SELECT * FROM %s;' % Test._meta.db_table
|
||||
|
||||
from django.db import connection
|
||||
cursor = connection.cursor()
|
||||
with self.assertNumQueries(1):
|
||||
cursor.execute(sql)
|
||||
data1 = cursor.fetchall()
|
||||
with self.assertNumQueries(1):
|
||||
cursor.execute(sql)
|
||||
data2 = cursor.fetchall()
|
||||
self.assertListEqual(data2, data1)
|
||||
self.assertListEqual(data2, [self.t1, self.t2])
|
||||
|
||||
|
||||
class WriteTestCase(TestCase):
|
||||
"""
|
||||
Tests if every SQL request writing data is not cached and invalidates the
|
||||
implied data.
|
||||
"""
|
||||
|
||||
def setUp(self):
|
||||
# TODO: Move this to setUpClass when cachalot will handle transactions.
|
||||
cache.clear()
|
||||
|
||||
def test_create(self):
|
||||
with self.assertNumQueries(1):
|
||||
data1 = list(Test.objects.all())
|
||||
self.assertListEqual(data1, [])
|
||||
|
||||
with self.assertNumQueries(1):
|
||||
t1 = Test.objects.create(name='test1')
|
||||
with self.assertNumQueries(1):
|
||||
t2 = Test.objects.create(name='test2')
|
||||
|
||||
with self.assertNumQueries(1):
|
||||
data2 = list(Test.objects.all())
|
||||
with self.assertNumQueries(1):
|
||||
t3 = Test.objects.create(name='test3')
|
||||
with self.assertNumQueries(1):
|
||||
data3 = list(Test.objects.all())
|
||||
self.assertListEqual(data2, [t1, t2])
|
||||
self.assertListEqual(data3, [t1, t2, t3])
|
||||
|
||||
def test_get_or_create(self):
|
||||
with self.assertNumQueries(1):
|
||||
data1 = list(Test.objects.all())
|
||||
self.assertListEqual(data1, [])
|
||||
|
||||
# get_or_create has to try to find the object, then create it
|
||||
# inside a transaction.
|
||||
# This triggers 4 queries: SELECT, BEGIN, UPDATE, & COMMIT
|
||||
with self.assertNumQueries(4):
|
||||
t, created = Test.objects.get_or_create(name='test')
|
||||
self.assertTrue(created)
|
||||
|
||||
with self.assertNumQueries(1):
|
||||
t_clone, created = Test.objects.get_or_create(name='test')
|
||||
self.assertFalse(created)
|
||||
self.assertEqual(t_clone, t)
|
||||
|
||||
with self.assertNumQueries(0):
|
||||
t_clone, created = Test.objects.get_or_create(name='test')
|
||||
self.assertFalse(created)
|
||||
self.assertEqual(t_clone, t)
|
||||
|
||||
with self.assertNumQueries(1):
|
||||
data2 = list(Test.objects.all())
|
||||
self.assertListEqual(data2, [t])
|
||||
|
||||
@skip(NotImplementedError)
|
||||
def test_update_or_create(self):
|
||||
pass
|
||||
|
||||
def test_bulk_create(self):
|
||||
with self.assertNumQueries(1):
|
||||
data1 = list(Test.objects.all())
|
||||
self.assertListEqual(data1, [])
|
||||
|
||||
with self.assertNumQueries(1):
|
||||
unsaved_tests = [Test(name='test%02d' % i) for i in range(1, 11)]
|
||||
Test.objects.bulk_create(unsaved_tests)
|
||||
self.assertEqual(Test.objects.count(), 10)
|
||||
|
||||
with self.assertNumQueries(1):
|
||||
unsaved_tests = [Test(name='test%02d' % i) for i in range(11, 21)]
|
||||
Test.objects.bulk_create(unsaved_tests)
|
||||
self.assertEqual(Test.objects.count(), 20)
|
||||
|
||||
with self.assertNumQueries(1):
|
||||
data2 = list(Test.objects.all())
|
||||
self.assertEqual(len(data2), 20)
|
||||
self.assertListEqual([t.name for t in data2],
|
||||
['test%02d' % i for i in range(1, 21)])
|
||||
|
||||
def test_update(self):
|
||||
with self.assertNumQueries(1):
|
||||
t = Test.objects.create(name='test1')
|
||||
|
||||
with self.assertNumQueries(1):
|
||||
t1 = Test.objects.get()
|
||||
with self.assertNumQueries(1):
|
||||
t.name = 'test2'
|
||||
t.save()
|
||||
with self.assertNumQueries(1):
|
||||
t2 = Test.objects.get()
|
||||
self.assertEqual(t1.name, 'test1')
|
||||
self.assertEqual(t2.name, 'test2')
|
||||
|
||||
with self.assertNumQueries(1):
|
||||
Test.objects.update(name='test3')
|
||||
with self.assertNumQueries(1):
|
||||
t3 = Test.objects.get()
|
||||
self.assertEqual(t3.name, 'test3')
|
||||
|
||||
def test_delete(self):
|
||||
with self.assertNumQueries(1):
|
||||
t1 = Test.objects.create(name='test1')
|
||||
with self.assertNumQueries(1):
|
||||
t2 = Test.objects.create(name='test2')
|
||||
|
||||
with self.assertNumQueries(1):
|
||||
data1 = list(Test.objects.values_list('name', flat=True))
|
||||
with self.assertNumQueries(1):
|
||||
t2.delete()
|
||||
with self.assertNumQueries(1):
|
||||
data2 = list(Test.objects.values_list('name', flat=True))
|
||||
self.assertListEqual(data1, [t1.name, t2.name])
|
||||
self.assertListEqual(data2, [t1.name])
|
||||
|
||||
@skip(NotImplementedError)
|
||||
def test_invalidate_exists(self):
|
||||
pass
|
||||
|
||||
@skip(NotImplementedError)
|
||||
def test_invalidate_count(self):
|
||||
pass
|
||||
|
||||
@skip(NotImplementedError)
|
||||
def test_invalidate_get(self):
|
||||
pass
|
||||
|
||||
@skip(NotImplementedError)
|
||||
def test_invalidate_values(self):
|
||||
pass
|
||||
|
||||
@skip(NotImplementedError)
|
||||
def test_invalidate_aggregate(self):
|
||||
pass
|
||||
|
||||
@skip(NotImplementedError)
|
||||
def test_invalidate_annotate(self):
|
||||
pass
|
||||
|
||||
def test_invalidate_subquery(self):
|
||||
with self.assertNumQueries(1):
|
||||
data1 = list(Test.objects.filter(owner__in=User.objects.all()))
|
||||
|
||||
u = User.objects.create_user('test')
|
||||
t = Test.objects.create(name='test', owner=u)
|
||||
|
||||
with self.assertNumQueries(1):
|
||||
data2 = list(Test.objects.filter(owner__in=User.objects.all()))
|
||||
|
||||
self.assertListEqual(data1, [])
|
||||
self.assertListEqual(data2, [t])
|
||||
|
||||
@skip(NotImplementedError)
|
||||
def test_invalidate_select_related(self):
|
||||
pass
|
||||
|
||||
@skip(NotImplementedError)
|
||||
def test_invalidate_prefetch_related(self):
|
||||
pass
|
||||
|
||||
@skip(NotImplementedError)
|
||||
def test_invalidate_extra_select(self):
|
||||
pass
|
||||
|
||||
@skip(NotImplementedError)
|
||||
def test_invalidate_extra_where(self):
|
||||
pass
|
||||
|
||||
@skip(NotImplementedError)
|
||||
def test_invalidate_extra_tables(self):
|
||||
pass
|
||||
|
||||
@skip(NotImplementedError)
|
||||
def test_invalidate_extra_order_by(self):
|
||||
pass
|
||||
28
runtests.py
Executable file
28
runtests.py
Executable file
|
|
@ -0,0 +1,28 @@
|
|||
#!/usr/bin/env python
|
||||
# coding: utf-8
|
||||
|
||||
from __future__ import unicode_literals
|
||||
import sys
|
||||
from django.conf import settings
|
||||
|
||||
settings.configure(
|
||||
DEBUG=True,
|
||||
DATABASES={
|
||||
'default': {
|
||||
'ENGINE': 'django.db.backends.sqlite3',
|
||||
},
|
||||
},
|
||||
INSTALLED_APPS=(
|
||||
'cachalot',
|
||||
'django.contrib.auth',
|
||||
'django.contrib.contenttypes',
|
||||
),
|
||||
)
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
from django.test.runner import DiscoverRunner
|
||||
test_runner = DiscoverRunner()
|
||||
failures = test_runner.run_tests(['cachalot'])
|
||||
if failures:
|
||||
sys.exit(failures)
|
||||
Loading…
Reference in a new issue