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django/tests/indexes/tests.py
Vlastimil Zíma ef3ae3d1c9 [1.6.x] Fixed #22514 -- Prevented indexes on virtual fields [postgres].
Backport of 78c32f1caa from master
2014-06-20 19:01:49 -04:00

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1.5 KiB
Python

from django.core.management.color import no_style
from django.db import connection, connections, DEFAULT_DB_ALIAS
from django.test import TestCase
from django.utils.unittest import skipUnless
from .models import Article
class IndexesTests(TestCase):
def test_index_together(self):
connection = connections[DEFAULT_DB_ALIAS]
index_sql = connection.creation.sql_indexes_for_model(Article, no_style())
self.assertEqual(len(index_sql), 1)
@skipUnless(connections[DEFAULT_DB_ALIAS].vendor == 'postgresql',
"This is a postgresql-specific issue")
def test_postgresql_text_indexes(self):
"""Test creation of PostgreSQL-specific text indexes (#12234)"""
from .models import IndexedArticle
connection = connections[DEFAULT_DB_ALIAS]
index_sql = connection.creation.sql_indexes_for_model(IndexedArticle, no_style())
self.assertEqual(len(index_sql), 5)
self.assertIn('("headline" varchar_pattern_ops)', index_sql[1])
self.assertIn('("body" text_pattern_ops)', index_sql[3])
# unique=True and db_index=True should only create the varchar-specific
# index (#19441).
self.assertIn('("slug" varchar_pattern_ops)', index_sql[4])
@skipUnless(connection.vendor == 'postgresql',
"This is a postgresql-specific issue")
def test_postgresql_virtual_relation_indexes(self):
"""Test indexes are not created for related objects"""
index_sql = connection.creation.sql_indexes_for_model(Article, no_style())
self.assertEqual(len(index_sql), 1)