mirror of https://github.com/django/django.git
125 lines
4.7 KiB
Python
125 lines
4.7 KiB
Python
import re
|
|
import threading
|
|
import unittest
|
|
|
|
from django.db import connection
|
|
from django.db.models import Avg, StdDev, Sum, Variance
|
|
from django.db.utils import NotSupportedError
|
|
from django.test import TestCase, TransactionTestCase, override_settings
|
|
|
|
from ..models import Item, Object, Square
|
|
|
|
|
|
@unittest.skipUnless(connection.vendor == 'sqlite', 'SQLite tests')
|
|
class Tests(TestCase):
|
|
longMessage = True
|
|
|
|
def test_autoincrement(self):
|
|
"""
|
|
auto_increment fields are created with the AUTOINCREMENT keyword
|
|
in order to be monotonically increasing (#10164).
|
|
"""
|
|
with connection.schema_editor(collect_sql=True) as editor:
|
|
editor.create_model(Square)
|
|
statements = editor.collected_sql
|
|
match = re.search('"id" ([^,]+),', statements[0])
|
|
self.assertIsNotNone(match)
|
|
self.assertEqual(
|
|
'integer NOT NULL PRIMARY KEY AUTOINCREMENT',
|
|
match.group(1),
|
|
'Wrong SQL used to create an auto-increment column on SQLite'
|
|
)
|
|
|
|
def test_aggregation(self):
|
|
"""
|
|
Raise NotImplementedError when aggregating on date/time fields (#19360).
|
|
"""
|
|
for aggregate in (Sum, Avg, Variance, StdDev):
|
|
with self.assertRaises(NotSupportedError):
|
|
Item.objects.all().aggregate(aggregate('time'))
|
|
with self.assertRaises(NotSupportedError):
|
|
Item.objects.all().aggregate(aggregate('date'))
|
|
with self.assertRaises(NotSupportedError):
|
|
Item.objects.all().aggregate(aggregate('last_modified'))
|
|
with self.assertRaises(NotSupportedError):
|
|
Item.objects.all().aggregate(
|
|
**{'complex': aggregate('last_modified') + aggregate('last_modified')}
|
|
)
|
|
|
|
def test_memory_db_test_name(self):
|
|
"""A named in-memory db should be allowed where supported."""
|
|
from django.db.backends.sqlite3.base import DatabaseWrapper
|
|
settings_dict = {
|
|
'TEST': {
|
|
'NAME': 'file:memorydb_test?mode=memory&cache=shared',
|
|
}
|
|
}
|
|
creation = DatabaseWrapper(settings_dict).creation
|
|
self.assertEqual(creation._get_test_db_name(), creation.connection.settings_dict['TEST']['NAME'])
|
|
|
|
|
|
@unittest.skipUnless(connection.vendor == 'sqlite', 'Test only for SQLite')
|
|
@override_settings(DEBUG=True)
|
|
class LastExecutedQueryTest(TestCase):
|
|
|
|
def test_no_interpolation(self):
|
|
# This shouldn't raise an exception (#17158)
|
|
query = "SELECT strftime('%Y', 'now');"
|
|
connection.cursor().execute(query)
|
|
self.assertEqual(connection.queries[-1]['sql'], query)
|
|
|
|
def test_parameter_quoting(self):
|
|
# The implementation of last_executed_queries isn't optimal. It's
|
|
# worth testing that parameters are quoted (#14091).
|
|
query = "SELECT %s"
|
|
params = ["\"'\\"]
|
|
connection.cursor().execute(query, params)
|
|
# Note that the single quote is repeated
|
|
substituted = "SELECT '\"''\\'"
|
|
self.assertEqual(connection.queries[-1]['sql'], substituted)
|
|
|
|
def test_large_number_of_parameters(self):
|
|
# If SQLITE_MAX_VARIABLE_NUMBER (default = 999) has been changed to be
|
|
# greater than SQLITE_MAX_COLUMN (default = 2000), last_executed_query
|
|
# can hit the SQLITE_MAX_COLUMN limit (#26063).
|
|
cursor = connection.cursor()
|
|
sql = "SELECT MAX(%s)" % ", ".join(["%s"] * 2001)
|
|
params = list(range(2001))
|
|
# This should not raise an exception.
|
|
cursor.db.ops.last_executed_query(cursor.cursor, sql, params)
|
|
|
|
|
|
@unittest.skipUnless(connection.vendor == 'sqlite', 'SQLite tests')
|
|
class EscapingChecks(TestCase):
|
|
"""
|
|
All tests in this test case are also run with settings.DEBUG=True in
|
|
EscapingChecksDebug test case, to also test CursorDebugWrapper.
|
|
"""
|
|
def test_parameter_escaping(self):
|
|
# '%s' escaping support for sqlite3 (#13648).
|
|
cursor = connection.cursor()
|
|
cursor.execute("select strftime('%s', date('now'))")
|
|
response = cursor.fetchall()[0][0]
|
|
# response should be an non-zero integer
|
|
self.assertTrue(int(response))
|
|
|
|
|
|
@unittest.skipUnless(connection.vendor == 'sqlite', 'SQLite tests')
|
|
@override_settings(DEBUG=True)
|
|
class EscapingChecksDebug(EscapingChecks):
|
|
pass
|
|
|
|
|
|
@unittest.skipUnless(connection.vendor == 'sqlite', 'SQLite tests')
|
|
class ThreadSharing(TransactionTestCase):
|
|
available_apps = ['backends']
|
|
|
|
def test_database_sharing_in_threads(self):
|
|
def create_object():
|
|
Object.objects.create()
|
|
create_object()
|
|
thread = threading.Thread(target=create_object)
|
|
thread.start()
|
|
thread.join()
|
|
self.assertEqual(Object.objects.count(), 2)
|