django/tests/test_utils/tests.py

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import logging
import os
import unittest
import warnings
from io import StringIO
from unittest import mock
from django.conf import settings
from django.contrib.staticfiles.finders import get_finder, get_finders
from django.contrib.staticfiles.storage import staticfiles_storage
from django.core.exceptions import ImproperlyConfigured
from django.core.files.storage import default_storage
from django.db import (
IntegrityError, connection, connections, models, router, transaction,
)
from django.forms import EmailField, IntegerField
from django.http import HttpResponse
from django.template.loader import render_to_string
from django.test import (
SimpleTestCase, TestCase, TransactionTestCase, ignore_warnings,
skipIfDBFeature, skipUnlessDBFeature,
)
from django.test.html import HTMLParseError, parse_html
from django.test.utils import (
CaptureQueriesContext, TestContextDecorator, isolate_apps,
override_settings, setup_test_environment,
)
from django.urls import NoReverseMatch, path, reverse, reverse_lazy
from django.utils.deprecation import RemovedInDjango41Warning
from django.utils.log import DEFAULT_LOGGING
from .models import Car, Person, PossessedCar
from .views import empty_response
class SkippingTestCase(SimpleTestCase):
def _assert_skipping(self, func, expected_exc, msg=None):
try:
if msg is not None:
with self.assertRaisesMessage(expected_exc, msg):
func()
else:
with self.assertRaises(expected_exc):
func()
except unittest.SkipTest:
self.fail('%s should not result in a skipped test.' % func.__name__)
def test_skip_unless_db_feature(self):
"""
Testing the django.test.skipUnlessDBFeature decorator.
"""
# Total hack, but it works, just want an attribute that's always true.
@skipUnlessDBFeature("__class__")
def test_func():
raise ValueError
@skipUnlessDBFeature("notprovided")
def test_func2():
raise ValueError
@skipUnlessDBFeature("__class__", "__class__")
def test_func3():
raise ValueError
@skipUnlessDBFeature("__class__", "notprovided")
def test_func4():
raise ValueError
self._assert_skipping(test_func, ValueError)
self._assert_skipping(test_func2, unittest.SkipTest)
self._assert_skipping(test_func3, ValueError)
self._assert_skipping(test_func4, unittest.SkipTest)
class SkipTestCase(SimpleTestCase):
@skipUnlessDBFeature('missing')
def test_foo(self):
pass
self._assert_skipping(
SkipTestCase('test_foo').test_foo,
ValueError,
"skipUnlessDBFeature cannot be used on test_foo (test_utils.tests."
"SkippingTestCase.test_skip_unless_db_feature.<locals>.SkipTestCase) "
"as SkippingTestCase.test_skip_unless_db_feature.<locals>.SkipTestCase "
"doesn't allow queries against the 'default' database."
)
def test_skip_if_db_feature(self):
"""
Testing the django.test.skipIfDBFeature decorator.
"""
@skipIfDBFeature("__class__")
def test_func():
raise ValueError
@skipIfDBFeature("notprovided")
def test_func2():
raise ValueError
@skipIfDBFeature("__class__", "__class__")
def test_func3():
raise ValueError
@skipIfDBFeature("__class__", "notprovided")
def test_func4():
raise ValueError
@skipIfDBFeature("notprovided", "notprovided")
def test_func5():
raise ValueError
self._assert_skipping(test_func, unittest.SkipTest)
self._assert_skipping(test_func2, ValueError)
self._assert_skipping(test_func3, unittest.SkipTest)
self._assert_skipping(test_func4, unittest.SkipTest)
self._assert_skipping(test_func5, ValueError)
class SkipTestCase(SimpleTestCase):
@skipIfDBFeature('missing')
def test_foo(self):
pass
self._assert_skipping(
SkipTestCase('test_foo').test_foo,
ValueError,
"skipIfDBFeature cannot be used on test_foo (test_utils.tests."
"SkippingTestCase.test_skip_if_db_feature.<locals>.SkipTestCase) "
"as SkippingTestCase.test_skip_if_db_feature.<locals>.SkipTestCase "
"doesn't allow queries against the 'default' database."
)
class SkippingClassTestCase(TestCase):
def test_skip_class_unless_db_feature(self):
@skipUnlessDBFeature("__class__")
class NotSkippedTests(TestCase):
def test_dummy(self):
return
@skipUnlessDBFeature("missing")
@skipIfDBFeature("__class__")
class SkippedTests(TestCase):
def test_will_be_skipped(self):
self.fail("We should never arrive here.")
@skipIfDBFeature("__dict__")
class SkippedTestsSubclass(SkippedTests):
pass
test_suite = unittest.TestSuite()
test_suite.addTest(NotSkippedTests('test_dummy'))
try:
test_suite.addTest(SkippedTests('test_will_be_skipped'))
test_suite.addTest(SkippedTestsSubclass('test_will_be_skipped'))
except unittest.SkipTest:
self.fail('SkipTest should not be raised here.')
result = unittest.TextTestRunner(stream=StringIO()).run(test_suite)
self.assertEqual(result.testsRun, 3)
self.assertEqual(len(result.skipped), 2)
self.assertEqual(result.skipped[0][1], 'Database has feature(s) __class__')
self.assertEqual(result.skipped[1][1], 'Database has feature(s) __class__')
def test_missing_default_databases(self):
@skipIfDBFeature('missing')
class MissingDatabases(SimpleTestCase):
def test_assertion_error(self):
pass
suite = unittest.TestSuite()
try:
suite.addTest(MissingDatabases('test_assertion_error'))
except unittest.SkipTest:
self.fail("SkipTest should not be raised at this stage")
runner = unittest.TextTestRunner(stream=StringIO())
msg = (
"skipIfDBFeature cannot be used on <class 'test_utils.tests."
"SkippingClassTestCase.test_missing_default_databases.<locals>."
"MissingDatabases'> as it doesn't allow queries against the "
"'default' database."
)
with self.assertRaisesMessage(ValueError, msg):
runner.run(suite)
@override_settings(ROOT_URLCONF='test_utils.urls')
class AssertNumQueriesTests(TestCase):
def test_assert_num_queries(self):
def test_func():
raise ValueError
with self.assertRaises(ValueError):
self.assertNumQueries(2, test_func)
def test_assert_num_queries_with_client(self):
person = Person.objects.create(name='test')
self.assertNumQueries(
1,
self.client.get,
"/test_utils/get_person/%s/" % person.pk
)
self.assertNumQueries(
1,
self.client.get,
"/test_utils/get_person/%s/" % person.pk
)
def test_func():
self.client.get("/test_utils/get_person/%s/" % person.pk)
self.client.get("/test_utils/get_person/%s/" % person.pk)
self.assertNumQueries(2, test_func)
@unittest.skipUnless(
connection.vendor != 'sqlite' or not connection.is_in_memory_db(),
'For SQLite in-memory tests, closing the connection destroys the database.'
)
class AssertNumQueriesUponConnectionTests(TransactionTestCase):
available_apps = []
def test_ignores_connection_configuration_queries(self):
real_ensure_connection = connection.ensure_connection
connection.close()
def make_configuration_query():
is_opening_connection = connection.connection is None
real_ensure_connection()
if is_opening_connection:
# Avoid infinite recursion. Creating a cursor calls
# ensure_connection() which is currently mocked by this method.
with connection.cursor() as cursor:
cursor.execute('SELECT 1' + connection.features.bare_select_suffix)
ensure_connection = 'django.db.backends.base.base.BaseDatabaseWrapper.ensure_connection'
with mock.patch(ensure_connection, side_effect=make_configuration_query):
with self.assertNumQueries(1):
list(Car.objects.all())
class AssertQuerysetEqualTests(TestCase):
@classmethod
def setUpTestData(cls):
cls.p1 = Person.objects.create(name='p1')
cls.p2 = Person.objects.create(name='p2')
def test_empty(self):
self.assertQuerysetEqual(Person.objects.filter(name='p3'), [])
def test_ordered(self):
self.assertQuerysetEqual(
Person.objects.all().order_by('name'),
[self.p1, self.p2],
)
def test_unordered(self):
self.assertQuerysetEqual(
Person.objects.all().order_by('name'),
[self.p2, self.p1],
ordered=False
)
def test_queryset(self):
self.assertQuerysetEqual(
Person.objects.all().order_by('name'),
Person.objects.all().order_by('name'),
)
def test_flat_values_list(self):
self.assertQuerysetEqual(
Person.objects.all().order_by('name').values_list('name', flat=True),
['p1', 'p2'],
)
def test_transform(self):
self.assertQuerysetEqual(
Person.objects.all().order_by('name'),
[self.p1.pk, self.p2.pk],
transform=lambda x: x.pk
)
def test_repr_transform(self):
self.assertQuerysetEqual(
Person.objects.all().order_by('name'),
[repr(self.p1), repr(self.p2)],
transform=repr,
)
def test_undefined_order(self):
# Using an unordered queryset with more than one ordered value
# is an error.
msg = (
'Trying to compare non-ordered queryset against more than one '
'ordered value.'
)
with self.assertRaisesMessage(ValueError, msg):
self.assertQuerysetEqual(
Person.objects.all(),
[self.p1, self.p2],
)
# No error for one value.
self.assertQuerysetEqual(Person.objects.filter(name='p1'), [self.p1])
def test_repeated_values(self):
"""
assertQuerysetEqual checks the number of appearance of each item
when used with option ordered=False.
"""
batmobile = Car.objects.create(name='Batmobile')
k2000 = Car.objects.create(name='K 2000')
PossessedCar.objects.bulk_create([
PossessedCar(car=batmobile, belongs_to=self.p1),
PossessedCar(car=batmobile, belongs_to=self.p1),
PossessedCar(car=k2000, belongs_to=self.p1),
PossessedCar(car=k2000, belongs_to=self.p1),
PossessedCar(car=k2000, belongs_to=self.p1),
PossessedCar(car=k2000, belongs_to=self.p1),
])
with self.assertRaises(AssertionError):
self.assertQuerysetEqual(
self.p1.cars.all(),
[batmobile, k2000],
ordered=False
)
self.assertQuerysetEqual(
self.p1.cars.all(),
[batmobile] * 2 + [k2000] * 4,
ordered=False
)
def test_maxdiff(self):
names = ['Joe Smith %s' % i for i in range(20)]
Person.objects.bulk_create([Person(name=name) for name in names])
names.append('Extra Person')
with self.assertRaises(AssertionError) as ctx:
self.assertQuerysetEqual(
Person.objects.filter(name__startswith='Joe'),
names,
ordered=False,
transform=lambda p: p.name,
)
self.assertIn('Set self.maxDiff to None to see it.', str(ctx.exception))
original = self.maxDiff
self.maxDiff = None
try:
with self.assertRaises(AssertionError) as ctx:
self.assertQuerysetEqual(
Person.objects.filter(name__startswith='Joe'),
names,
ordered=False,
transform=lambda p: p.name,
)
finally:
self.maxDiff = original
exception_msg = str(ctx.exception)
self.assertNotIn('Set self.maxDiff to None to see it.', exception_msg)
for name in names:
self.assertIn(name, exception_msg)
class AssertQuerysetEqualDeprecationTests(TestCase):
@classmethod
def setUpTestData(cls):
cls.p1 = Person.objects.create(name='p1')
cls.p2 = Person.objects.create(name='p2')
@ignore_warnings(category=RemovedInDjango41Warning)
def test_str_values(self):
self.assertQuerysetEqual(
Person.objects.all().order_by('name'),
[repr(self.p1), repr(self.p2)],
)
def test_str_values_warning(self):
msg = (
"In Django 4.1, repr() will not be called automatically on a "
"queryset when compared to string values. Set an explicit "
"'transform' to silence this warning."
)
with self.assertRaisesMessage(RemovedInDjango41Warning, msg):
self.assertQuerysetEqual(
Person.objects.all().order_by('name'),
[repr(self.p1), repr(self.p2)],
)
@override_settings(ROOT_URLCONF='test_utils.urls')
class CaptureQueriesContextManagerTests(TestCase):
@classmethod
def setUpTestData(cls):
cls.person_pk = str(Person.objects.create(name='test').pk)
def test_simple(self):
with CaptureQueriesContext(connection) as captured_queries:
Person.objects.get(pk=self.person_pk)
self.assertEqual(len(captured_queries), 1)
self.assertIn(self.person_pk, captured_queries[0]['sql'])
with CaptureQueriesContext(connection) as captured_queries:
pass
self.assertEqual(0, len(captured_queries))
def test_within(self):
with CaptureQueriesContext(connection) as captured_queries:
Person.objects.get(pk=self.person_pk)
self.assertEqual(len(captured_queries), 1)
self.assertIn(self.person_pk, captured_queries[0]['sql'])
def test_nested(self):
with CaptureQueriesContext(connection) as captured_queries:
Person.objects.count()
with CaptureQueriesContext(connection) as nested_captured_queries:
Person.objects.count()
self.assertEqual(1, len(nested_captured_queries))
self.assertEqual(2, len(captured_queries))
def test_failure(self):
with self.assertRaises(TypeError):
with CaptureQueriesContext(connection):
raise TypeError
def test_with_client(self):
with CaptureQueriesContext(connection) as captured_queries:
self.client.get("/test_utils/get_person/%s/" % self.person_pk)
self.assertEqual(len(captured_queries), 1)
self.assertIn(self.person_pk, captured_queries[0]['sql'])
with CaptureQueriesContext(connection) as captured_queries:
self.client.get("/test_utils/get_person/%s/" % self.person_pk)
self.assertEqual(len(captured_queries), 1)
self.assertIn(self.person_pk, captured_queries[0]['sql'])
with CaptureQueriesContext(connection) as captured_queries:
self.client.get("/test_utils/get_person/%s/" % self.person_pk)
self.client.get("/test_utils/get_person/%s/" % self.person_pk)
self.assertEqual(len(captured_queries), 2)
self.assertIn(self.person_pk, captured_queries[0]['sql'])
self.assertIn(self.person_pk, captured_queries[1]['sql'])
@override_settings(ROOT_URLCONF='test_utils.urls')
class AssertNumQueriesContextManagerTests(TestCase):
def test_simple(self):
with self.assertNumQueries(0):
pass
with self.assertNumQueries(1):
Person.objects.count()
with self.assertNumQueries(2):
Person.objects.count()
Person.objects.count()
def test_failure(self):
msg = (
'1 != 2 : 1 queries executed, 2 expected\nCaptured queries were:\n'
'1.'
)
with self.assertRaisesMessage(AssertionError, msg):
with self.assertNumQueries(2):
Person.objects.count()
with self.assertRaises(TypeError):
with self.assertNumQueries(4000):
raise TypeError
def test_with_client(self):
person = Person.objects.create(name="test")
with self.assertNumQueries(1):
self.client.get("/test_utils/get_person/%s/" % person.pk)
with self.assertNumQueries(1):
self.client.get("/test_utils/get_person/%s/" % person.pk)
with self.assertNumQueries(2):
self.client.get("/test_utils/get_person/%s/" % person.pk)
self.client.get("/test_utils/get_person/%s/" % person.pk)
@override_settings(ROOT_URLCONF='test_utils.urls')
class AssertTemplateUsedContextManagerTests(SimpleTestCase):
def test_usage(self):
with self.assertTemplateUsed('template_used/base.html'):
render_to_string('template_used/base.html')
with self.assertTemplateUsed(template_name='template_used/base.html'):
render_to_string('template_used/base.html')
with self.assertTemplateUsed('template_used/base.html'):
render_to_string('template_used/include.html')
with self.assertTemplateUsed('template_used/base.html'):
render_to_string('template_used/extends.html')
with self.assertTemplateUsed('template_used/base.html'):
render_to_string('template_used/base.html')
render_to_string('template_used/base.html')
def test_nested_usage(self):
with self.assertTemplateUsed('template_used/base.html'):
with self.assertTemplateUsed('template_used/include.html'):
render_to_string('template_used/include.html')
with self.assertTemplateUsed('template_used/extends.html'):
with self.assertTemplateUsed('template_used/base.html'):
render_to_string('template_used/extends.html')
with self.assertTemplateUsed('template_used/base.html'):
with self.assertTemplateUsed('template_used/alternative.html'):
render_to_string('template_used/alternative.html')
render_to_string('template_used/base.html')
with self.assertTemplateUsed('template_used/base.html'):
render_to_string('template_used/extends.html')
with self.assertTemplateNotUsed('template_used/base.html'):
render_to_string('template_used/alternative.html')
render_to_string('template_used/base.html')
def test_not_used(self):
with self.assertTemplateNotUsed('template_used/base.html'):
pass
with self.assertTemplateNotUsed('template_used/alternative.html'):
pass
def test_error_message(self):
msg = 'template_used/base.html was not rendered. No template was rendered.'
with self.assertRaisesMessage(AssertionError, msg):
with self.assertTemplateUsed('template_used/base.html'):
pass
with self.assertRaisesMessage(AssertionError, msg):
with self.assertTemplateUsed(template_name='template_used/base.html'):
pass
msg2 = (
'template_used/base.html was not rendered. Following templates '
'were rendered: template_used/alternative.html'
)
with self.assertRaisesMessage(AssertionError, msg2):
with self.assertTemplateUsed('template_used/base.html'):
render_to_string('template_used/alternative.html')
with self.assertRaisesMessage(AssertionError, 'No templates used to render the response'):
response = self.client.get('/test_utils/no_template_used/')
self.assertTemplateUsed(response, 'template_used/base.html')
def test_failure(self):
msg = 'response and/or template_name argument must be provided'
with self.assertRaisesMessage(TypeError, msg):
with self.assertTemplateUsed():
pass
msg = 'No templates used to render the response'
with self.assertRaisesMessage(AssertionError, msg):
with self.assertTemplateUsed(''):
pass
with self.assertRaisesMessage(AssertionError, msg):
with self.assertTemplateUsed(''):
render_to_string('template_used/base.html')
with self.assertRaisesMessage(AssertionError, msg):
with self.assertTemplateUsed(template_name=''):
pass
msg = (
'template_used/base.html was not rendered. Following '
'templates were rendered: template_used/alternative.html'
)
with self.assertRaisesMessage(AssertionError, msg):
with self.assertTemplateUsed('template_used/base.html'):
render_to_string('template_used/alternative.html')
def test_assert_used_on_http_response(self):
response = HttpResponse()
error_msg = (
'assertTemplateUsed() and assertTemplateNotUsed() are only '
'usable on responses fetched using the Django test Client.'
)
with self.assertRaisesMessage(ValueError, error_msg):
self.assertTemplateUsed(response, 'template.html')
with self.assertRaisesMessage(ValueError, error_msg):
self.assertTemplateNotUsed(response, 'template.html')
class HTMLEqualTests(SimpleTestCase):
def test_html_parser(self):
element = parse_html('<div><p>Hello</p></div>')
self.assertEqual(len(element.children), 1)
self.assertEqual(element.children[0].name, 'p')
self.assertEqual(element.children[0].children[0], 'Hello')
parse_html('<p>')
parse_html('<p attr>')
dom = parse_html('<p>foo')
self.assertEqual(len(dom.children), 1)
self.assertEqual(dom.name, 'p')
self.assertEqual(dom[0], 'foo')
def test_parse_html_in_script(self):
2013-10-10 20:50:32 +08:00
parse_html('<script>var a = "<p" + ">";</script>')
parse_html('''
<script>
var js_sha_link='<p>***</p>';
</script>
''')
# script content will be parsed to text
dom = parse_html('''
<script><p>foo</p> '</scr'+'ipt>' <span>bar</span></script>
''')
self.assertEqual(len(dom.children), 1)
self.assertEqual(dom.children[0], "<p>foo</p> '</scr'+'ipt>' <span>bar</span>")
def test_self_closing_tags(self):
self_closing_tags = [
'area', 'base', 'br', 'col', 'embed', 'hr', 'img', 'input', 'link',
'meta', 'param', 'source', 'track', 'wbr',
# Deprecated tags
'frame', 'spacer',
]
for tag in self_closing_tags:
with self.subTest(tag):
dom = parse_html('<p>Hello <%s> world</p>' % tag)
self.assertEqual(len(dom.children), 3)
self.assertEqual(dom[0], 'Hello')
self.assertEqual(dom[1].name, tag)
self.assertEqual(dom[2], 'world')
dom = parse_html('<p>Hello <%s /> world</p>' % tag)
self.assertEqual(len(dom.children), 3)
self.assertEqual(dom[0], 'Hello')
self.assertEqual(dom[1].name, tag)
self.assertEqual(dom[2], 'world')
def test_simple_equal_html(self):
self.assertHTMLEqual('', '')
self.assertHTMLEqual('<p></p>', '<p></p>')
self.assertHTMLEqual('<p></p>', ' <p> </p> ')
self.assertHTMLEqual(
'<div><p>Hello</p></div>',
'<div><p>Hello</p></div>')
self.assertHTMLEqual(
'<div><p>Hello</p></div>',
'<div> <p>Hello</p> </div>')
self.assertHTMLEqual(
'<div>\n<p>Hello</p></div>',
'<div><p>Hello</p></div>\n')
self.assertHTMLEqual(
'<div><p>Hello\nWorld !</p></div>',
'<div><p>Hello World\n!</p></div>')
self.assertHTMLEqual(
'<div><p>Hello\nWorld !</p></div>',
'<div><p>Hello World\n!</p></div>')
self.assertHTMLEqual(
'<p>Hello World !</p>',
'<p>Hello World\n\n!</p>')
self.assertHTMLEqual('<p> </p>', '<p></p>')
self.assertHTMLEqual('<p/>', '<p></p>')
self.assertHTMLEqual('<p />', '<p></p>')
self.assertHTMLEqual('<input checked>', '<input checked="checked">')
self.assertHTMLEqual('<p>Hello', '<p> Hello')
self.assertHTMLEqual('<p>Hello</p>World', '<p>Hello</p> World')
def test_ignore_comments(self):
self.assertHTMLEqual(
'<div>Hello<!-- this is a comment --> World!</div>',
'<div>Hello World!</div>')
def test_unequal_html(self):
self.assertHTMLNotEqual('<p>Hello</p>', '<p>Hello!</p>')
self.assertHTMLNotEqual('<p>foo&#20;bar</p>', '<p>foo&nbsp;bar</p>')
self.assertHTMLNotEqual('<p>foo bar</p>', '<p>foo &nbsp;bar</p>')
self.assertHTMLNotEqual('<p>foo nbsp</p>', '<p>foo &nbsp;</p>')
self.assertHTMLNotEqual('<p>foo #20</p>', '<p>foo &#20;</p>')
self.assertHTMLNotEqual(
'<p><span>Hello</span><span>World</span></p>',
'<p><span>Hello</span>World</p>')
self.assertHTMLNotEqual(
'<p><span>Hello</span>World</p>',
'<p><span>Hello</span><span>World</span></p>')
def test_attributes(self):
self.assertHTMLEqual(
'<input type="text" id="id_name" />',
'<input id="id_name" type="text" />')
self.assertHTMLEqual(
'''<input type='text' id="id_name" />''',
'<input id="id_name" type="text" />')
self.assertHTMLNotEqual(
'<input type="text" id="id_name" />',
'<input type="password" id="id_name" />')
def test_class_attribute(self):
pairs = [
('<p class="foo bar"></p>', '<p class="bar foo"></p>'),
('<p class=" foo bar "></p>', '<p class="bar foo"></p>'),
('<p class=" foo bar "></p>', '<p class="bar foo"></p>'),
('<p class="foo\tbar"></p>', '<p class="bar foo"></p>'),
('<p class="\tfoo\tbar\t"></p>', '<p class="bar foo"></p>'),
('<p class="\t\t\tfoo\t\t\tbar\t\t\t"></p>', '<p class="bar foo"></p>'),
('<p class="\t \nfoo \t\nbar\n\t "></p>', '<p class="bar foo"></p>'),
]
for html1, html2 in pairs:
with self.subTest(html1):
self.assertHTMLEqual(html1, html2)
def test_boolean_attribute(self):
html1 = '<input checked>'
html2 = '<input checked="">'
html3 = '<input checked="checked">'
self.assertHTMLEqual(html1, html2)
self.assertHTMLEqual(html1, html3)
self.assertHTMLEqual(html2, html3)
self.assertHTMLNotEqual(html1, '<input checked="invalid">')
self.assertEqual(str(parse_html(html1)), '<input checked>')
self.assertEqual(str(parse_html(html2)), '<input checked>')
self.assertEqual(str(parse_html(html3)), '<input checked>')
def test_non_boolean_attibutes(self):
html1 = '<input value>'
html2 = '<input value="">'
html3 = '<input value="value">'
self.assertHTMLEqual(html1, html2)
self.assertHTMLNotEqual(html1, html3)
self.assertEqual(str(parse_html(html1)), '<input value="">')
self.assertEqual(str(parse_html(html2)), '<input value="">')
def test_normalize_refs(self):
pairs = [
('&#39;', '&#x27;'),
('&#39;', "'"),
('&#x27;', '&#39;'),
('&#x27;', "'"),
("'", '&#39;'),
("'", '&#x27;'),
('&amp;', '&#38;'),
('&amp;', '&#x26;'),
('&amp;', '&'),
('&#38;', '&amp;'),
('&#38;', '&#x26;'),
('&#38;', '&'),
('&#x26;', '&amp;'),
('&#x26;', '&#38;'),
('&#x26;', '&'),
('&', '&amp;'),
('&', '&#38;'),
('&', '&#x26;'),
]
for pair in pairs:
with self.subTest(repr(pair)):
self.assertHTMLEqual(*pair)
def test_complex_examples(self):
self.assertHTMLEqual(
"""<tr><th><label for="id_first_name">First name:</label></th>
<td><input type="text" name="first_name" value="John" id="id_first_name" /></td></tr>
<tr><th><label for="id_last_name">Last name:</label></th>
<td><input type="text" id="id_last_name" name="last_name" value="Lennon" /></td></tr>
<tr><th><label for="id_birthday">Birthday:</label></th>
<td><input type="text" value="1940-10-9" name="birthday" id="id_birthday" /></td></tr>""",
"""
<tr><th>
<label for="id_first_name">First name:</label></th><td>
<input type="text" name="first_name" value="John" id="id_first_name" />
</td></tr>
<tr><th>
<label for="id_last_name">Last name:</label></th><td>
<input type="text" name="last_name" value="Lennon" id="id_last_name" />
</td></tr>
<tr><th>
<label for="id_birthday">Birthday:</label></th><td>
<input type="text" name="birthday" value="1940-10-9" id="id_birthday" />
</td></tr>
""")
self.assertHTMLEqual(
"""<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet">
<title>Document</title>
<meta attribute="value">
</head>
<body>
<p>
This is a valid paragraph
<div> this is a div AFTER the p</div>
</body>
</html>""", """
<html>
<head>
<link rel="stylesheet">
<title>Document</title>
<meta attribute="value">
</head>
<body>
<p> This is a valid paragraph
<!-- browsers would close the p tag here -->
<div> this is a div AFTER the p</div>
</p> <!-- this is invalid HTML parsing, but it should make no
difference in most cases -->
</body>
</html>""")
def test_html_contain(self):
# equal html contains each other
dom1 = parse_html('<p>foo')
dom2 = parse_html('<p>foo</p>')
self.assertIn(dom1, dom2)
self.assertIn(dom2, dom1)
dom2 = parse_html('<div><p>foo</p></div>')
self.assertIn(dom1, dom2)
self.assertNotIn(dom2, dom1)
self.assertNotIn('<p>foo</p>', dom2)
self.assertIn('foo', dom2)
# when a root element is used ...
dom1 = parse_html('<p>foo</p><p>bar</p>')
dom2 = parse_html('<p>foo</p><p>bar</p>')
self.assertIn(dom1, dom2)
dom1 = parse_html('<p>foo</p>')
self.assertIn(dom1, dom2)
dom1 = parse_html('<p>bar</p>')
self.assertIn(dom1, dom2)
dom1 = parse_html('<div><p>foo</p><p>bar</p></div>')
self.assertIn(dom2, dom1)
def test_count(self):
# equal html contains each other one time
dom1 = parse_html('<p>foo')
dom2 = parse_html('<p>foo</p>')
self.assertEqual(dom1.count(dom2), 1)
self.assertEqual(dom2.count(dom1), 1)
dom2 = parse_html('<p>foo</p><p>bar</p>')
self.assertEqual(dom2.count(dom1), 1)
dom2 = parse_html('<p>foo foo</p><p>foo</p>')
self.assertEqual(dom2.count('foo'), 3)
dom2 = parse_html('<p class="bar">foo</p>')
self.assertEqual(dom2.count('bar'), 0)
self.assertEqual(dom2.count('class'), 0)
self.assertEqual(dom2.count('p'), 0)
self.assertEqual(dom2.count('o'), 2)
dom2 = parse_html('<p>foo</p><p>foo</p>')
self.assertEqual(dom2.count(dom1), 2)
dom2 = parse_html('<div><p>foo<input type=""></p><p>foo</p></div>')
self.assertEqual(dom2.count(dom1), 1)
dom2 = parse_html('<div><div><p>foo</p></div></div>')
self.assertEqual(dom2.count(dom1), 1)
dom2 = parse_html('<p>foo<p>foo</p></p>')
self.assertEqual(dom2.count(dom1), 1)
dom2 = parse_html('<p>foo<p>bar</p></p>')
self.assertEqual(dom2.count(dom1), 0)
# HTML with a root element contains the same HTML with no root element.
dom1 = parse_html('<p>foo</p><p>bar</p>')
dom2 = parse_html('<div><p>foo</p><p>bar</p></div>')
self.assertEqual(dom2.count(dom1), 1)
# Target of search is a sequence of child elements and appears more
# than once.
dom2 = parse_html('<div><p>foo</p><p>bar</p><p>foo</p><p>bar</p></div>')
self.assertEqual(dom2.count(dom1), 2)
# Searched HTML has additional children.
dom1 = parse_html('<a/><b/>')
dom2 = parse_html('<a/><b/><c/>')
self.assertEqual(dom2.count(dom1), 1)
# No match found in children.
dom1 = parse_html('<b/><a/>')
self.assertEqual(dom2.count(dom1), 0)
# Target of search found among children and grandchildren.
dom1 = parse_html('<b/><b/>')
dom2 = parse_html('<a><b/><b/></a><b/><b/>')
self.assertEqual(dom2.count(dom1), 2)
def test_parsing_errors(self):
with self.assertRaises(AssertionError):
self.assertHTMLEqual('<p>', '')
with self.assertRaises(AssertionError):
self.assertHTMLEqual('', '<p>')
error_msg = (
"First argument is not valid HTML:\n"
"('Unexpected end tag `div` (Line 1, Column 6)', (1, 6))"
)
with self.assertRaisesMessage(AssertionError, error_msg):
self.assertHTMLEqual('< div></ div>', '<div></div>')
with self.assertRaises(HTMLParseError):
parse_html('</p>')
def test_contains_html(self):
response = HttpResponse('''<body>
This is a form: <form method="get">
<input type="text" name="Hello" />
</form></body>''')
self.assertNotContains(response, "<input name='Hello' type='text'>")
self.assertContains(response, '<form method="get">')
self.assertContains(response, "<input name='Hello' type='text'>", html=True)
self.assertNotContains(response, '<form method="get">', html=True)
invalid_response = HttpResponse('''<body <bad>>''')
with self.assertRaises(AssertionError):
self.assertContains(invalid_response, '<p></p>')
with self.assertRaises(AssertionError):
self.assertContains(response, '<p "whats" that>')
def test_unicode_handling(self):
response = HttpResponse('<p class="help">Some help text for the title (with Unicode ŠĐĆŽćžšđ)</p>')
self.assertContains(
response,
'<p class="help">Some help text for the title (with Unicode ŠĐĆŽćžšđ)</p>',
html=True
)
class JSONEqualTests(SimpleTestCase):
def test_simple_equal(self):
json1 = '{"attr1": "foo", "attr2":"baz"}'
json2 = '{"attr1": "foo", "attr2":"baz"}'
self.assertJSONEqual(json1, json2)
def test_simple_equal_unordered(self):
json1 = '{"attr1": "foo", "attr2":"baz"}'
json2 = '{"attr2":"baz", "attr1": "foo"}'
self.assertJSONEqual(json1, json2)
def test_simple_equal_raise(self):
json1 = '{"attr1": "foo", "attr2":"baz"}'
json2 = '{"attr2":"baz"}'
with self.assertRaises(AssertionError):
self.assertJSONEqual(json1, json2)
def test_equal_parsing_errors(self):
invalid_json = '{"attr1": "foo, "attr2":"baz"}'
valid_json = '{"attr1": "foo", "attr2":"baz"}'
with self.assertRaises(AssertionError):
self.assertJSONEqual(invalid_json, valid_json)
with self.assertRaises(AssertionError):
self.assertJSONEqual(valid_json, invalid_json)
def test_simple_not_equal(self):
json1 = '{"attr1": "foo", "attr2":"baz"}'
json2 = '{"attr2":"baz"}'
self.assertJSONNotEqual(json1, json2)
def test_simple_not_equal_raise(self):
json1 = '{"attr1": "foo", "attr2":"baz"}'
json2 = '{"attr1": "foo", "attr2":"baz"}'
with self.assertRaises(AssertionError):
self.assertJSONNotEqual(json1, json2)
def test_not_equal_parsing_errors(self):
invalid_json = '{"attr1": "foo, "attr2":"baz"}'
valid_json = '{"attr1": "foo", "attr2":"baz"}'
with self.assertRaises(AssertionError):
self.assertJSONNotEqual(invalid_json, valid_json)
with self.assertRaises(AssertionError):
self.assertJSONNotEqual(valid_json, invalid_json)
class XMLEqualTests(SimpleTestCase):
def test_simple_equal(self):
xml1 = "<elem attr1='a' attr2='b' />"
xml2 = "<elem attr1='a' attr2='b' />"
self.assertXMLEqual(xml1, xml2)
def test_simple_equal_unordered(self):
xml1 = "<elem attr1='a' attr2='b' />"
xml2 = "<elem attr2='b' attr1='a' />"
self.assertXMLEqual(xml1, xml2)
def test_simple_equal_raise(self):
xml1 = "<elem attr1='a' />"
xml2 = "<elem attr2='b' attr1='a' />"
with self.assertRaises(AssertionError):
self.assertXMLEqual(xml1, xml2)
def test_simple_equal_raises_message(self):
xml1 = "<elem attr1='a' />"
xml2 = "<elem attr2='b' attr1='a' />"
msg = '''{xml1} != {xml2}
- <elem attr1='a' />
+ <elem attr2='b' attr1='a' />
? ++++++++++
'''.format(xml1=repr(xml1), xml2=repr(xml2))
with self.assertRaisesMessage(AssertionError, msg):
self.assertXMLEqual(xml1, xml2)
def test_simple_not_equal(self):
xml1 = "<elem attr1='a' attr2='c' />"
xml2 = "<elem attr1='a' attr2='b' />"
self.assertXMLNotEqual(xml1, xml2)
def test_simple_not_equal_raise(self):
xml1 = "<elem attr1='a' attr2='b' />"
xml2 = "<elem attr2='b' attr1='a' />"
with self.assertRaises(AssertionError):
self.assertXMLNotEqual(xml1, xml2)
def test_parsing_errors(self):
xml_unvalid = "<elem attr1='a attr2='b' />"
xml2 = "<elem attr2='b' attr1='a' />"
with self.assertRaises(AssertionError):
self.assertXMLNotEqual(xml_unvalid, xml2)
def test_comment_root(self):
xml1 = "<?xml version='1.0'?><!-- comment1 --><elem attr1='a' attr2='b' />"
xml2 = "<?xml version='1.0'?><!-- comment2 --><elem attr2='b' attr1='a' />"
self.assertXMLEqual(xml1, xml2)
def test_simple_equal_with_leading_or_trailing_whitespace(self):
xml1 = "<elem>foo</elem> \t\n"
xml2 = " \t\n<elem>foo</elem>"
self.assertXMLEqual(xml1, xml2)
def test_simple_not_equal_with_whitespace_in_the_middle(self):
xml1 = "<elem>foo</elem><elem>bar</elem>"
xml2 = "<elem>foo</elem> <elem>bar</elem>"
self.assertXMLNotEqual(xml1, xml2)
def test_doctype_root(self):
xml1 = '<?xml version="1.0"?><!DOCTYPE root SYSTEM "example1.dtd"><root />'
xml2 = '<?xml version="1.0"?><!DOCTYPE root SYSTEM "example2.dtd"><root />'
self.assertXMLEqual(xml1, xml2)
def test_processing_instruction(self):
xml1 = (
'<?xml version="1.0"?>'
'<?xml-model href="http://www.example1.com"?><root />'
)
xml2 = (
'<?xml version="1.0"?>'
'<?xml-model href="http://www.example2.com"?><root />'
)
self.assertXMLEqual(xml1, xml2)
self.assertXMLEqual(
'<?xml-stylesheet href="style1.xslt" type="text/xsl"?><root />',
'<?xml-stylesheet href="style2.xslt" type="text/xsl"?><root />',
)
class SkippingExtraTests(TestCase):
fixtures = ['should_not_be_loaded.json']
# HACK: This depends on internals of our TestCase subclasses
def __call__(self, result=None):
# Detect fixture loading by counting SQL queries, should be zero
with self.assertNumQueries(0):
super().__call__(result)
@unittest.skip("Fixture loading should not be performed for skipped tests.")
def test_fixtures_are_skipped(self):
pass
class AssertRaisesMsgTest(SimpleTestCase):
def test_assert_raises_message(self):
msg = "'Expected message' not found in 'Unexpected message'"
# context manager form of assertRaisesMessage()
with self.assertRaisesMessage(AssertionError, msg):
with self.assertRaisesMessage(ValueError, "Expected message"):
raise ValueError("Unexpected message")
# callable form
def func():
raise ValueError("Unexpected message")
with self.assertRaisesMessage(AssertionError, msg):
self.assertRaisesMessage(ValueError, "Expected message", func)
def test_special_re_chars(self):
"""assertRaisesMessage shouldn't interpret RE special chars."""
def func1():
raise ValueError("[.*x+]y?")
with self.assertRaisesMessage(ValueError, "[.*x+]y?"):
func1()
class AssertWarnsMessageTests(SimpleTestCase):
def test_context_manager(self):
with self.assertWarnsMessage(UserWarning, 'Expected message'):
warnings.warn('Expected message', UserWarning)
def test_context_manager_failure(self):
msg = "Expected message' not found in 'Unexpected message'"
with self.assertRaisesMessage(AssertionError, msg):
with self.assertWarnsMessage(UserWarning, 'Expected message'):
warnings.warn('Unexpected message', UserWarning)
def test_callable(self):
def func():
warnings.warn('Expected message', UserWarning)
self.assertWarnsMessage(UserWarning, 'Expected message', func)
def test_special_re_chars(self):
def func1():
warnings.warn('[.*x+]y?', UserWarning)
with self.assertWarnsMessage(UserWarning, '[.*x+]y?'):
func1()
# TODO: Remove when dropping support for PY39.
class AssertNoLogsTest(SimpleTestCase):
@classmethod
def setUpClass(cls):
super().setUpClass()
logging.config.dictConfig(DEFAULT_LOGGING)
cls.addClassCleanup(logging.config.dictConfig, settings.LOGGING)
def setUp(self):
self.logger = logging.getLogger('django')
@override_settings(DEBUG=True)
def test_fails_when_log_emitted(self):
msg = "Unexpected logs found: ['INFO:django:FAIL!']"
with self.assertRaisesMessage(AssertionError, msg):
with self.assertNoLogs('django', 'INFO'):
self.logger.info('FAIL!')
@override_settings(DEBUG=True)
def test_text_level(self):
with self.assertNoLogs('django', 'INFO'):
self.logger.debug('DEBUG logs are ignored.')
@override_settings(DEBUG=True)
def test_int_level(self):
with self.assertNoLogs('django', logging.INFO):
self.logger.debug('DEBUG logs are ignored.')
@override_settings(DEBUG=True)
def test_default_level(self):
with self.assertNoLogs('django'):
self.logger.debug('DEBUG logs are ignored.')
@override_settings(DEBUG=True)
def test_does_not_hide_other_failures(self):
msg = '1 != 2'
with self.assertRaisesMessage(AssertionError, msg):
with self.assertNoLogs('django'):
self.assertEqual(1, 2)
class AssertFieldOutputTests(SimpleTestCase):
def test_assert_field_output(self):
error_invalid = ['Enter a valid email address.']
self.assertFieldOutput(EmailField, {'a@a.com': 'a@a.com'}, {'aaa': error_invalid})
with self.assertRaises(AssertionError):
self.assertFieldOutput(EmailField, {'a@a.com': 'a@a.com'}, {'aaa': error_invalid + ['Another error']})
with self.assertRaises(AssertionError):
self.assertFieldOutput(EmailField, {'a@a.com': 'Wrong output'}, {'aaa': error_invalid})
with self.assertRaises(AssertionError):
self.assertFieldOutput(
EmailField, {'a@a.com': 'a@a.com'}, {'aaa': ['Come on, gimme some well formatted data, dude.']}
)
def test_custom_required_message(self):
class MyCustomField(IntegerField):
default_error_messages = {
'required': 'This is really required.',
}
self.assertFieldOutput(MyCustomField, {}, {}, empty_value=None)
@override_settings(ROOT_URLCONF='test_utils.urls')
class AssertURLEqualTests(SimpleTestCase):
def test_equal(self):
valid_tests = (
('http://example.com/?', 'http://example.com/'),
('http://example.com/?x=1&', 'http://example.com/?x=1'),
('http://example.com/?x=1&y=2', 'http://example.com/?y=2&x=1'),
('http://example.com/?x=1&y=2', 'http://example.com/?y=2&x=1'),
('http://example.com/?x=1&y=2&a=1&a=2', 'http://example.com/?a=1&a=2&y=2&x=1'),
('/path/to/?x=1&y=2&z=3', '/path/to/?z=3&y=2&x=1'),
('?x=1&y=2&z=3', '?z=3&y=2&x=1'),
('/test_utils/no_template_used/', reverse_lazy('no_template_used')),
)
for url1, url2 in valid_tests:
with self.subTest(url=url1):
self.assertURLEqual(url1, url2)
def test_not_equal(self):
invalid_tests = (
# Protocol must be the same.
('http://example.com/', 'https://example.com/'),
('http://example.com/?x=1&x=2', 'https://example.com/?x=2&x=1'),
('http://example.com/?x=1&y=bar&x=2', 'https://example.com/?y=bar&x=2&x=1'),
# Parameters of the same name must be in the same order.
('/path/to?a=1&a=2', '/path/to/?a=2&a=1')
)
for url1, url2 in invalid_tests:
with self.subTest(url=url1), self.assertRaises(AssertionError):
self.assertURLEqual(url1, url2)
def test_message(self):
msg = (
"Expected 'http://example.com/?x=1&x=2' to equal "
"'https://example.com/?x=2&x=1'"
)
with self.assertRaisesMessage(AssertionError, msg):
self.assertURLEqual('http://example.com/?x=1&x=2', 'https://example.com/?x=2&x=1')
def test_msg_prefix(self):
msg = (
"Prefix: Expected 'http://example.com/?x=1&x=2' to equal "
"'https://example.com/?x=2&x=1'"
)
with self.assertRaisesMessage(AssertionError, msg):
self.assertURLEqual(
'http://example.com/?x=1&x=2', 'https://example.com/?x=2&x=1',
msg_prefix='Prefix: ',
)
class FirstUrls:
urlpatterns = [path('first/', empty_response, name='first')]
class SecondUrls:
urlpatterns = [path('second/', empty_response, name='second')]
class SetupTestEnvironmentTests(SimpleTestCase):
def test_setup_test_environment_calling_more_than_once(self):
with self.assertRaisesMessage(RuntimeError, "setup_test_environment() was already called"):
setup_test_environment()
def test_allowed_hosts(self):
for type_ in (list, tuple):
with self.subTest(type_=type_):
allowed_hosts = type_('*')
with mock.patch('django.test.utils._TestState') as x:
del x.saved_data
with self.settings(ALLOWED_HOSTS=allowed_hosts):
setup_test_environment()
self.assertEqual(settings.ALLOWED_HOSTS, ['*', 'testserver'])
class OverrideSettingsTests(SimpleTestCase):
2014-12-24 20:10:34 +08:00
# #21518 -- If neither override_settings nor a setting_changed receiver
# clears the URL cache between tests, then one of test_first or
# test_second will fail.
@override_settings(ROOT_URLCONF=FirstUrls)
def test_urlconf_first(self):
reverse('first')
@override_settings(ROOT_URLCONF=SecondUrls)
def test_urlconf_second(self):
reverse('second')
def test_urlconf_cache(self):
with self.assertRaises(NoReverseMatch):
reverse('first')
with self.assertRaises(NoReverseMatch):
reverse('second')
with override_settings(ROOT_URLCONF=FirstUrls):
self.client.get(reverse('first'))
with self.assertRaises(NoReverseMatch):
reverse('second')
with override_settings(ROOT_URLCONF=SecondUrls):
with self.assertRaises(NoReverseMatch):
reverse('first')
self.client.get(reverse('second'))
self.client.get(reverse('first'))
with self.assertRaises(NoReverseMatch):
reverse('second')
with self.assertRaises(NoReverseMatch):
reverse('first')
with self.assertRaises(NoReverseMatch):
reverse('second')
def test_override_media_root(self):
"""
Overriding the MEDIA_ROOT setting should be reflected in the
base_location attribute of django.core.files.storage.default_storage.
"""
self.assertEqual(default_storage.base_location, '')
with self.settings(MEDIA_ROOT='test_value'):
self.assertEqual(default_storage.base_location, 'test_value')
def test_override_media_url(self):
"""
Overriding the MEDIA_URL setting should be reflected in the
base_url attribute of django.core.files.storage.default_storage.
"""
self.assertEqual(default_storage.base_location, '')
with self.settings(MEDIA_URL='/test_value/'):
self.assertEqual(default_storage.base_url, '/test_value/')
def test_override_file_upload_permissions(self):
"""
Overriding the FILE_UPLOAD_PERMISSIONS setting should be reflected in
the file_permissions_mode attribute of
django.core.files.storage.default_storage.
"""
self.assertEqual(default_storage.file_permissions_mode, 0o644)
with self.settings(FILE_UPLOAD_PERMISSIONS=0o777):
self.assertEqual(default_storage.file_permissions_mode, 0o777)
def test_override_file_upload_directory_permissions(self):
"""
Overriding the FILE_UPLOAD_DIRECTORY_PERMISSIONS setting should be
reflected in the directory_permissions_mode attribute of
django.core.files.storage.default_storage.
"""
self.assertIsNone(default_storage.directory_permissions_mode)
with self.settings(FILE_UPLOAD_DIRECTORY_PERMISSIONS=0o777):
self.assertEqual(default_storage.directory_permissions_mode, 0o777)
def test_override_database_routers(self):
"""
Overriding DATABASE_ROUTERS should update the master router.
"""
test_routers = [object()]
with self.settings(DATABASE_ROUTERS=test_routers):
self.assertEqual(router.routers, test_routers)
def test_override_static_url(self):
"""
Overriding the STATIC_URL setting should be reflected in the
base_url attribute of
django.contrib.staticfiles.storage.staticfiles_storage.
"""
with self.settings(STATIC_URL='/test/'):
self.assertEqual(staticfiles_storage.base_url, '/test/')
def test_override_static_root(self):
"""
Overriding the STATIC_ROOT setting should be reflected in the
location attribute of
django.contrib.staticfiles.storage.staticfiles_storage.
"""
with self.settings(STATIC_ROOT='/tmp/test'):
self.assertEqual(staticfiles_storage.location, os.path.abspath('/tmp/test'))
def test_override_staticfiles_storage(self):
"""
Overriding the STATICFILES_STORAGE setting should be reflected in
the value of django.contrib.staticfiles.storage.staticfiles_storage.
"""
new_class = 'ManifestStaticFilesStorage'
new_storage = 'django.contrib.staticfiles.storage.' + new_class
with self.settings(STATICFILES_STORAGE=new_storage):
self.assertEqual(staticfiles_storage.__class__.__name__, new_class)
def test_override_staticfiles_finders(self):
"""
Overriding the STATICFILES_FINDERS setting should be reflected in
the return value of django.contrib.staticfiles.finders.get_finders.
"""
current = get_finders()
self.assertGreater(len(list(current)), 1)
finders = ['django.contrib.staticfiles.finders.FileSystemFinder']
with self.settings(STATICFILES_FINDERS=finders):
self.assertEqual(len(list(get_finders())), len(finders))
def test_override_staticfiles_dirs(self):
"""
Overriding the STATICFILES_DIRS setting should be reflected in
the locations attribute of the
django.contrib.staticfiles.finders.FileSystemFinder instance.
"""
finder = get_finder('django.contrib.staticfiles.finders.FileSystemFinder')
test_path = '/tmp/test'
expected_location = ('', test_path)
self.assertNotIn(expected_location, finder.locations)
with self.settings(STATICFILES_DIRS=[test_path]):
finder = get_finder('django.contrib.staticfiles.finders.FileSystemFinder')
self.assertIn(expected_location, finder.locations)
class TestBadSetUpTestData(TestCase):
"""
An exception in setUpTestData() shouldn't leak a transaction which would
cascade across the rest of the test suite.
"""
class MyException(Exception):
pass
@classmethod
def setUpClass(cls):
try:
super().setUpClass()
except cls.MyException:
cls._in_atomic_block = connection.in_atomic_block
@classmethod
def tearDownClass(Cls):
# override to avoid a second cls._rollback_atomics() which would fail.
# Normal setUpClass() methods won't have exception handling so this
# method wouldn't typically be run.
pass
@classmethod
def setUpTestData(cls):
# Simulate a broken setUpTestData() method.
raise cls.MyException()
def test_failure_in_setUpTestData_should_rollback_transaction(self):
# setUpTestData() should call _rollback_atomics() so that the
# transaction doesn't leak.
self.assertFalse(self._in_atomic_block)
class CaptureOnCommitCallbacksTests(TestCase):
databases = {'default', 'other'}
callback_called = False
def enqueue_callback(self, using='default'):
def hook():
self.callback_called = True
transaction.on_commit(hook, using=using)
def test_no_arguments(self):
with self.captureOnCommitCallbacks() as callbacks:
self.enqueue_callback()
self.assertEqual(len(callbacks), 1)
self.assertIs(self.callback_called, False)
callbacks[0]()
self.assertIs(self.callback_called, True)
def test_using(self):
with self.captureOnCommitCallbacks(using='other') as callbacks:
self.enqueue_callback(using='other')
self.assertEqual(len(callbacks), 1)
self.assertIs(self.callback_called, False)
callbacks[0]()
self.assertIs(self.callback_called, True)
def test_different_using(self):
with self.captureOnCommitCallbacks(using='default') as callbacks:
self.enqueue_callback(using='other')
self.assertEqual(callbacks, [])
def test_execute(self):
with self.captureOnCommitCallbacks(execute=True) as callbacks:
self.enqueue_callback()
self.assertEqual(len(callbacks), 1)
self.assertIs(self.callback_called, True)
def test_pre_callback(self):
def pre_hook():
pass
transaction.on_commit(pre_hook, using='default')
with self.captureOnCommitCallbacks() as callbacks:
self.enqueue_callback()
self.assertEqual(len(callbacks), 1)
self.assertNotEqual(callbacks[0], pre_hook)
def test_with_rolled_back_savepoint(self):
with self.captureOnCommitCallbacks() as callbacks:
try:
with transaction.atomic():
self.enqueue_callback()
raise IntegrityError
except IntegrityError:
# Inner transaction.atomic() has been rolled back.
pass
self.assertEqual(callbacks, [])
class DisallowedDatabaseQueriesTests(SimpleTestCase):
def test_disallowed_database_connections(self):
expected_message = (
"Database connections to 'default' are not allowed in SimpleTestCase "
"subclasses. Either subclass TestCase or TransactionTestCase to "
"ensure proper test isolation or add 'default' to "
"test_utils.tests.DisallowedDatabaseQueriesTests.databases to "
"silence this failure."
)
with self.assertRaisesMessage(AssertionError, expected_message):
connection.connect()
with self.assertRaisesMessage(AssertionError, expected_message):
connection.temporary_connection()
def test_disallowed_database_queries(self):
expected_message = (
"Database queries to 'default' are not allowed in SimpleTestCase "
"subclasses. Either subclass TestCase or TransactionTestCase to "
"ensure proper test isolation or add 'default' to "
"test_utils.tests.DisallowedDatabaseQueriesTests.databases to "
"silence this failure."
)
with self.assertRaisesMessage(AssertionError, expected_message):
Car.objects.first()
def test_disallowed_database_chunked_cursor_queries(self):
expected_message = (
"Database queries to 'default' are not allowed in SimpleTestCase "
"subclasses. Either subclass TestCase or TransactionTestCase to "
"ensure proper test isolation or add 'default' to "
"test_utils.tests.DisallowedDatabaseQueriesTests.databases to "
"silence this failure."
)
with self.assertRaisesMessage(AssertionError, expected_message):
next(Car.objects.iterator())
class AllowedDatabaseQueriesTests(SimpleTestCase):
databases = {'default'}
def test_allowed_database_queries(self):
Car.objects.first()
def test_allowed_database_chunked_cursor_queries(self):
next(Car.objects.iterator(), None)
class DatabaseAliasTests(SimpleTestCase):
def setUp(self):
self.addCleanup(setattr, self.__class__, 'databases', self.databases)
def test_no_close_match(self):
self.__class__.databases = {'void'}
message = (
"test_utils.tests.DatabaseAliasTests.databases refers to 'void' which is not defined "
"in settings.DATABASES."
)
with self.assertRaisesMessage(ImproperlyConfigured, message):
self._validate_databases()
def test_close_match(self):
self.__class__.databases = {'defualt'}
message = (
"test_utils.tests.DatabaseAliasTests.databases refers to 'defualt' which is not defined "
"in settings.DATABASES. Did you mean 'default'?"
)
with self.assertRaisesMessage(ImproperlyConfigured, message):
self._validate_databases()
def test_match(self):
self.__class__.databases = {'default', 'other'}
self.assertEqual(self._validate_databases(), frozenset({'default', 'other'}))
def test_all(self):
self.__class__.databases = '__all__'
self.assertEqual(self._validate_databases(), frozenset(connections))
@isolate_apps('test_utils', attr_name='class_apps')
class IsolatedAppsTests(SimpleTestCase):
def test_installed_apps(self):
self.assertEqual([app_config.label for app_config in self.class_apps.get_app_configs()], ['test_utils'])
def test_class_decoration(self):
class ClassDecoration(models.Model):
pass
self.assertEqual(ClassDecoration._meta.apps, self.class_apps)
@isolate_apps('test_utils', kwarg_name='method_apps')
def test_method_decoration(self, method_apps):
class MethodDecoration(models.Model):
pass
self.assertEqual(MethodDecoration._meta.apps, method_apps)
def test_context_manager(self):
with isolate_apps('test_utils') as context_apps:
class ContextManager(models.Model):
pass
self.assertEqual(ContextManager._meta.apps, context_apps)
@isolate_apps('test_utils', kwarg_name='method_apps')
def test_nested(self, method_apps):
class MethodDecoration(models.Model):
pass
with isolate_apps('test_utils') as context_apps:
class ContextManager(models.Model):
pass
with isolate_apps('test_utils') as nested_context_apps:
class NestedContextManager(models.Model):
pass
self.assertEqual(MethodDecoration._meta.apps, method_apps)
self.assertEqual(ContextManager._meta.apps, context_apps)
self.assertEqual(NestedContextManager._meta.apps, nested_context_apps)
class DoNothingDecorator(TestContextDecorator):
def enable(self):
pass
def disable(self):
pass
class TestContextDecoratorTests(SimpleTestCase):
@mock.patch.object(DoNothingDecorator, 'disable')
def test_exception_in_setup(self, mock_disable):
"""An exception is setUp() is reraised after disable() is called."""
class ExceptionInSetUp(unittest.TestCase):
def setUp(self):
raise NotImplementedError('reraised')
decorator = DoNothingDecorator()
decorated_test_class = decorator.__call__(ExceptionInSetUp)()
self.assertFalse(mock_disable.called)
with self.assertRaisesMessage(NotImplementedError, 'reraised'):
decorated_test_class.setUp()
decorated_test_class.doCleanups()
self.assertTrue(mock_disable.called)
def test_cleanups_run_after_tearDown(self):
calls = []
class SaveCallsDecorator(TestContextDecorator):
def enable(self):
calls.append('enable')
def disable(self):
calls.append('disable')
class AddCleanupInSetUp(unittest.TestCase):
def setUp(self):
calls.append('setUp')
self.addCleanup(lambda: calls.append('cleanup'))
decorator = SaveCallsDecorator()
decorated_test_class = decorator.__call__(AddCleanupInSetUp)()
decorated_test_class.setUp()
decorated_test_class.tearDown()
decorated_test_class.doCleanups()
self.assertEqual(calls, ['enable', 'setUp', 'cleanup', 'disable'])