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# coding: utf-8
from __future__ import absolute_import, unicode_literals
import unittest
from django.contrib.auth.models import User
from django.db import connection
from django.db.utils import DatabaseError
from django.shortcuts import render
from django.test.utils import override_settings
from ..base import BaseTestCase
class SQLPanelTestCase(BaseTestCase):
def setUp(self):
super(SQLPanelTestCase, self).setUp()
self.panel = self.toolbar.get_panel_by_id('SQLPanel')
self.panel.enable_instrumentation()
def tearDown(self):
self.panel.disable_instrumentation()
super(SQLPanelTestCase, self).tearDown()
def test_disabled(self):
config = {
'DISABLE_PANELS': {'debug_toolbar.panels.sql.SQLPanel'}
}
self.assertTrue(self.panel.enabled)
with self.settings(DEBUG_TOOLBAR_CONFIG=config):
self.assertFalse(self.panel.enabled)
def test_recording(self):
self.assertEqual(len(self.panel._queries), 0)
list(User.objects.all())
# ensure query was logged
self.assertEqual(len(self.panel._queries), 1)
query = self.panel._queries[0]
self.assertEqual(query[0], 'default')
self.assertTrue('sql' in query[1])
self.assertTrue('duration' in query[1])
self.assertTrue('stacktrace' in query[1])
# ensure the stacktrace is populated
self.assertTrue(len(query[1]['stacktrace']) > 0)
def test_non_ascii_query(self):
self.assertEqual(len(self.panel._queries), 0)
# non-ASCII text query
list(User.objects.extra(where=["username = 'apéro'"]))
self.assertEqual(len(self.panel._queries), 1)
# non-ASCII text parameters
list(User.objects.filter(username='thé'))
self.assertEqual(len(self.panel._queries), 2)
# non-ASCII bytes parameters
list(User.objects.filter(username='café'.encode('utf-8')))
self.assertEqual(len(self.panel._queries), 3)
self.panel.process_response(self.request, self.response)
self.panel.generate_stats(self.request, self.response)
# ensure the panel renders correctly
self.assertIn('café', self.panel.content)
def test_insert_content(self):
"""
Test that the panel only inserts content after generate_stats and
not the process_response.
"""
list(User.objects.filter(username='café'.encode('utf-8')))
self.panel.process_response(self.request, self.response)
# ensure the panel does not have content yet.
self.assertNotIn('café', self.panel.content)
self.panel.generate_stats(self.request, self.response)
# ensure the panel renders correctly.
self.assertIn('café', self.panel.content)
self.assertValidHTML(self.panel.content)
@unittest.skipUnless(connection.vendor == 'postgresql',
'Test valid only on PostgreSQL')
def test_erroneous_query(self):
"""
Test that an error in the query isn't swallowed by the middleware.
"""
try:
connection.cursor().execute("erroneous query")
except DatabaseError as e:
self.assertTrue('erroneous query' in str(e))
def test_disable_stacktraces(self):
self.assertEqual(len(self.panel._queries), 0)
with self.settings(DEBUG_TOOLBAR_CONFIG={'ENABLE_STACKTRACES': False}):
list(User.objects.all())
# ensure query was logged
self.assertEqual(len(self.panel._queries), 1)
query = self.panel._queries[0]
self.assertEqual(query[0], 'default')
self.assertTrue('sql' in query[1])
self.assertTrue('duration' in query[1])
self.assertTrue('stacktrace' in query[1])
# ensure the stacktrace is empty
self.assertEqual([], query[1]['stacktrace'])
@override_settings(DEBUG=True, TEMPLATES=[{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'OPTIONS': {'debug': True, 'loaders': ['tests.loaders.LoaderWithSQL']},
}])
def test_regression_infinite_recursion(self):
"""
Test case for when the template loader runs a SQL query that causes
an infinite recursion in the SQL panel.
"""
self.assertEqual(len(self.panel._queries), 0)
render(self.request, "basic.html", {})
# Two queries are logged because the loader runs SQL every time a
# template is loaded and basic.html extends base.html.
self.assertEqual(len(self.panel._queries), 2)
query = self.panel._queries[0]
self.assertEqual(query[0], 'default')
self.assertTrue('sql' in query[1])
self.assertTrue('duration' in query[1])
self.assertTrue('stacktrace' in query[1])
# ensure the stacktrace is populated
self.assertTrue(len(query[1]['stacktrace']) > 0)
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