mirror of
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f758bdab5e
Previously, the flush was done before the test case execution and now it is performed after it. Other changes to the testing infrastructure include: * TransactionTestCase now doesn't reset autoincrement sequences either (previous behavior can achieved by using `reset_sequences`.) With this, no implicit such reset is performed by any of the provided TestCase classes. * New ordering of test cases: All unittest tes cases are run first and doctests are run at the end. THse changes could be backward-incompatible with test cases that relied on some kind of state being preserved between tests. Please read the relevant sections of the release notes and testing documentation for further details. Thanks Andreas Pelme for the initial patch. Karen Tracey and Anssi Kääriäinen for the feedback and Anssi for reviewing. This also fixes #12408.
1177 lines
45 KiB
Python
1177 lines
45 KiB
Python
from __future__ import unicode_literals
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import difflib
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import json
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import os
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import re
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import sys
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from copy import copy
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from functools import wraps
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try:
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from urllib.parse import urlsplit, urlunsplit
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except ImportError: # Python 2
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from urlparse import urlsplit, urlunsplit
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from xml.dom.minidom import parseString, Node
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import select
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import socket
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import threading
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import errno
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from django.conf import settings
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from django.contrib.staticfiles.handlers import StaticFilesHandler
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from django.core import mail
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from django.core.exceptions import ValidationError, ImproperlyConfigured
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from django.core.handlers.wsgi import WSGIHandler
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from django.core.management import call_command
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from django.core.management.color import no_style
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from django.core.signals import request_started
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from django.core.servers.basehttp import (WSGIRequestHandler, WSGIServer,
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WSGIServerException)
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from django.core.urlresolvers import clear_url_caches
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from django.core.validators import EMPTY_VALUES
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from django.db import (transaction, connection, connections, DEFAULT_DB_ALIAS,
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reset_queries)
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from django.forms.fields import CharField
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from django.http import QueryDict
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from django.test import _doctest as doctest
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from django.test.client import Client
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from django.test.html import HTMLParseError, parse_html
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from django.test.signals import template_rendered
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from django.test.utils import (get_warnings_state, restore_warnings_state,
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override_settings)
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from django.test.utils import ContextList
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from django.utils import unittest as ut2
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from django.utils.encoding import smart_str, force_unicode
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from django.utils import six
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from django.utils.unittest.util import safe_repr
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from django.views.static import serve
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__all__ = ('DocTestRunner', 'OutputChecker', 'TestCase', 'TransactionTestCase',
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'SimpleTestCase', 'skipIfDBFeature', 'skipUnlessDBFeature')
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normalize_long_ints = lambda s: re.sub(r'(?<![\w])(\d+)L(?![\w])', '\\1', s)
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normalize_decimals = lambda s: re.sub(r"Decimal\('(\d+(\.\d*)?)'\)",
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lambda m: "Decimal(\"%s\")" % m.groups()[0], s)
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def to_list(value):
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"""
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Puts value into a list if it's not already one.
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Returns an empty list if value is None.
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"""
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if value is None:
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value = []
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elif not isinstance(value, list):
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value = [value]
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return value
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real_commit = transaction.commit
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real_rollback = transaction.rollback
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real_enter_transaction_management = transaction.enter_transaction_management
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real_leave_transaction_management = transaction.leave_transaction_management
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real_managed = transaction.managed
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def nop(*args, **kwargs):
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return
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def disable_transaction_methods():
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transaction.commit = nop
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transaction.rollback = nop
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transaction.enter_transaction_management = nop
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transaction.leave_transaction_management = nop
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transaction.managed = nop
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def restore_transaction_methods():
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transaction.commit = real_commit
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transaction.rollback = real_rollback
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transaction.enter_transaction_management = real_enter_transaction_management
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transaction.leave_transaction_management = real_leave_transaction_management
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transaction.managed = real_managed
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def assert_and_parse_html(self, html, user_msg, msg):
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try:
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dom = parse_html(html)
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except HTMLParseError as e:
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standardMsg = '%s\n%s' % (msg, e.msg)
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self.fail(self._formatMessage(user_msg, standardMsg))
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return dom
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class OutputChecker(doctest.OutputChecker):
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def check_output(self, want, got, optionflags):
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"""
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The entry method for doctest output checking. Defers to a sequence of
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child checkers
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"""
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checks = (self.check_output_default,
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self.check_output_numeric,
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self.check_output_xml,
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self.check_output_json)
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for check in checks:
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if check(want, got, optionflags):
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return True
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return False
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def check_output_default(self, want, got, optionflags):
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"""
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The default comparator provided by doctest - not perfect, but good for
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most purposes
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"""
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return doctest.OutputChecker.check_output(self, want, got, optionflags)
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def check_output_numeric(self, want, got, optionflags):
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"""Doctest does an exact string comparison of output, which means that
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some numerically equivalent values aren't equal. This check normalizes
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* long integers (22L) so that they equal normal integers. (22)
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* Decimals so that they are comparable, regardless of the change
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made to __repr__ in Python 2.6.
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"""
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return doctest.OutputChecker.check_output(self,
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normalize_decimals(normalize_long_ints(want)),
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normalize_decimals(normalize_long_ints(got)),
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optionflags)
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def check_output_xml(self, want, got, optionsflags):
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"""Tries to do a 'xml-comparision' of want and got. Plain string
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comparision doesn't always work because, for example, attribute
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ordering should not be important.
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Based on http://codespeak.net/svn/lxml/trunk/src/lxml/doctestcompare.py
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"""
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_norm_whitespace_re = re.compile(r'[ \t\n][ \t\n]+')
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def norm_whitespace(v):
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return _norm_whitespace_re.sub(' ', v)
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def child_text(element):
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return ''.join([c.data for c in element.childNodes
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if c.nodeType == Node.TEXT_NODE])
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def children(element):
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return [c for c in element.childNodes
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if c.nodeType == Node.ELEMENT_NODE]
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def norm_child_text(element):
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return norm_whitespace(child_text(element))
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def attrs_dict(element):
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return dict(element.attributes.items())
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def check_element(want_element, got_element):
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if want_element.tagName != got_element.tagName:
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return False
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if norm_child_text(want_element) != norm_child_text(got_element):
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return False
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if attrs_dict(want_element) != attrs_dict(got_element):
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return False
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want_children = children(want_element)
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got_children = children(got_element)
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if len(want_children) != len(got_children):
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return False
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for want, got in zip(want_children, got_children):
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if not check_element(want, got):
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return False
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return True
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want, got = self._strip_quotes(want, got)
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want = want.replace('\\n','\n')
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got = got.replace('\\n','\n')
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# If the string is not a complete xml document, we may need to add a
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# root element. This allow us to compare fragments, like "<foo/><bar/>"
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if not want.startswith('<?xml'):
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wrapper = '<root>%s</root>'
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want = wrapper % want
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got = wrapper % got
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# Parse the want and got strings, and compare the parsings.
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try:
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want_root = parseString(want).firstChild
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got_root = parseString(got).firstChild
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except Exception:
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return False
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return check_element(want_root, got_root)
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def check_output_json(self, want, got, optionsflags):
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"""
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Tries to compare want and got as if they were JSON-encoded data
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"""
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want, got = self._strip_quotes(want, got)
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try:
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want_json = json.loads(want)
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got_json = json.loads(got)
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except Exception:
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return False
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return want_json == got_json
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def _strip_quotes(self, want, got):
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"""
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Strip quotes of doctests output values:
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>>> o = OutputChecker()
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>>> o._strip_quotes("'foo'")
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"foo"
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>>> o._strip_quotes('"foo"')
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"foo"
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"""
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def is_quoted_string(s):
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s = s.strip()
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return (len(s) >= 2
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and s[0] == s[-1]
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and s[0] in ('"', "'"))
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def is_quoted_unicode(s):
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s = s.strip()
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return (len(s) >= 3
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and s[0] == 'u'
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and s[1] == s[-1]
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and s[1] in ('"', "'"))
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if is_quoted_string(want) and is_quoted_string(got):
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want = want.strip()[1:-1]
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got = got.strip()[1:-1]
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elif is_quoted_unicode(want) and is_quoted_unicode(got):
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want = want.strip()[2:-1]
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got = got.strip()[2:-1]
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return want, got
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class DocTestRunner(doctest.DocTestRunner):
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def __init__(self, *args, **kwargs):
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doctest.DocTestRunner.__init__(self, *args, **kwargs)
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self.optionflags = doctest.ELLIPSIS
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def report_unexpected_exception(self, out, test, example, exc_info):
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doctest.DocTestRunner.report_unexpected_exception(self, out, test,
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example, exc_info)
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# Rollback, in case of database errors. Otherwise they'd have
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# side effects on other tests.
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for conn in connections:
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transaction.rollback_unless_managed(using=conn)
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class _AssertNumQueriesContext(object):
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def __init__(self, test_case, num, connection):
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self.test_case = test_case
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self.num = num
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self.connection = connection
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def __enter__(self):
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self.old_debug_cursor = self.connection.use_debug_cursor
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self.connection.use_debug_cursor = True
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self.starting_queries = len(self.connection.queries)
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request_started.disconnect(reset_queries)
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return self
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def __exit__(self, exc_type, exc_value, traceback):
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self.connection.use_debug_cursor = self.old_debug_cursor
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request_started.connect(reset_queries)
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if exc_type is not None:
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return
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final_queries = len(self.connection.queries)
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executed = final_queries - self.starting_queries
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self.test_case.assertEqual(
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executed, self.num, "%d queries executed, %d expected" % (
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executed, self.num
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)
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)
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class _AssertTemplateUsedContext(object):
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def __init__(self, test_case, template_name):
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self.test_case = test_case
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self.template_name = template_name
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self.rendered_templates = []
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self.rendered_template_names = []
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self.context = ContextList()
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def on_template_render(self, sender, signal, template, context, **kwargs):
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self.rendered_templates.append(template)
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self.rendered_template_names.append(template.name)
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self.context.append(copy(context))
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def test(self):
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return self.template_name in self.rendered_template_names
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def message(self):
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return '%s was not rendered.' % self.template_name
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def __enter__(self):
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template_rendered.connect(self.on_template_render)
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return self
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def __exit__(self, exc_type, exc_value, traceback):
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template_rendered.disconnect(self.on_template_render)
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if exc_type is not None:
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return
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if not self.test():
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message = self.message()
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if len(self.rendered_templates) == 0:
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message += ' No template was rendered.'
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else:
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message += ' Following templates were rendered: %s' % (
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', '.join(self.rendered_template_names))
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self.test_case.fail(message)
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class _AssertTemplateNotUsedContext(_AssertTemplateUsedContext):
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def test(self):
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return self.template_name not in self.rendered_template_names
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def message(self):
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return '%s was rendered.' % self.template_name
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class SimpleTestCase(ut2.TestCase):
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def save_warnings_state(self):
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"""
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Saves the state of the warnings module
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"""
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self._warnings_state = get_warnings_state()
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def restore_warnings_state(self):
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"""
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Restores the state of the warnings module to the state
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saved by save_warnings_state()
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"""
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restore_warnings_state(self._warnings_state)
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def settings(self, **kwargs):
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"""
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A context manager that temporarily sets a setting and reverts
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back to the original value when exiting the context.
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"""
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return override_settings(**kwargs)
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def assertRaisesMessage(self, expected_exception, expected_message,
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callable_obj=None, *args, **kwargs):
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"""
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Asserts that the message in a raised exception matches the passed
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value.
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Args:
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expected_exception: Exception class expected to be raised.
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expected_message: expected error message string value.
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callable_obj: Function to be called.
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args: Extra args.
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kwargs: Extra kwargs.
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"""
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return self.assertRaisesRegexp(expected_exception,
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re.escape(expected_message), callable_obj, *args, **kwargs)
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def assertFieldOutput(self, fieldclass, valid, invalid, field_args=None,
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field_kwargs=None, empty_value=''):
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"""
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Asserts that a form field behaves correctly with various inputs.
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Args:
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fieldclass: the class of the field to be tested.
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valid: a dictionary mapping valid inputs to their expected
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cleaned values.
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invalid: a dictionary mapping invalid inputs to one or more
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raised error messages.
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field_args: the args passed to instantiate the field
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field_kwargs: the kwargs passed to instantiate the field
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empty_value: the expected clean output for inputs in EMPTY_VALUES
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"""
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if field_args is None:
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field_args = []
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if field_kwargs is None:
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field_kwargs = {}
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required = fieldclass(*field_args, **field_kwargs)
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optional = fieldclass(*field_args,
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**dict(field_kwargs, required=False))
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# test valid inputs
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for input, output in valid.items():
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self.assertEqual(required.clean(input), output)
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self.assertEqual(optional.clean(input), output)
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# test invalid inputs
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for input, errors in invalid.items():
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with self.assertRaises(ValidationError) as context_manager:
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required.clean(input)
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self.assertEqual(context_manager.exception.messages, errors)
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with self.assertRaises(ValidationError) as context_manager:
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optional.clean(input)
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self.assertEqual(context_manager.exception.messages, errors)
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# test required inputs
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error_required = [force_unicode(required.error_messages['required'])]
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for e in EMPTY_VALUES:
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with self.assertRaises(ValidationError) as context_manager:
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required.clean(e)
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self.assertEqual(context_manager.exception.messages,
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error_required)
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self.assertEqual(optional.clean(e), empty_value)
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# test that max_length and min_length are always accepted
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if issubclass(fieldclass, CharField):
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field_kwargs.update({'min_length':2, 'max_length':20})
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self.assertTrue(isinstance(fieldclass(*field_args, **field_kwargs),
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fieldclass))
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def assertHTMLEqual(self, html1, html2, msg=None):
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"""
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Asserts that two HTML snippets are semantically the same.
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Whitespace in most cases is ignored, and attribute ordering is not
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significant. The passed-in arguments must be valid HTML.
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"""
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dom1 = assert_and_parse_html(self, html1, msg,
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'First argument is not valid HTML:')
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dom2 = assert_and_parse_html(self, html2, msg,
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'Second argument is not valid HTML:')
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if dom1 != dom2:
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standardMsg = '%s != %s' % (
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safe_repr(dom1, True), safe_repr(dom2, True))
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diff = ('\n' + '\n'.join(difflib.ndiff(
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six.text_type(dom1).splitlines(),
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six.text_type(dom2).splitlines())))
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standardMsg = self._truncateMessage(standardMsg, diff)
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self.fail(self._formatMessage(msg, standardMsg))
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def assertHTMLNotEqual(self, html1, html2, msg=None):
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"""Asserts that two HTML snippets are not semantically equivalent."""
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dom1 = assert_and_parse_html(self, html1, msg,
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'First argument is not valid HTML:')
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dom2 = assert_and_parse_html(self, html2, msg,
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'Second argument is not valid HTML:')
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if dom1 == dom2:
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standardMsg = '%s == %s' % (
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safe_repr(dom1, True), safe_repr(dom2, True))
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self.fail(self._formatMessage(msg, standardMsg))
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class TransactionTestCase(SimpleTestCase):
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# The class we'll use for the test client self.client.
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# Can be overridden in derived classes.
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client_class = Client
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# Subclasses can ask for resetting of auto increment sequence before each
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# test case
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reset_sequences = False
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def _pre_setup(self):
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"""Performs any pre-test setup. This includes:
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* Flushing the database.
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* If the Test Case class has a 'fixtures' member, installing the
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named fixtures.
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* If the Test Case class has a 'urls' member, replace the
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ROOT_URLCONF with it.
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* Clearing the mail test outbox.
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"""
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self._fixture_setup()
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self._urlconf_setup()
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mail.outbox = []
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def _reset_sequences(self, db_name):
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conn = connections[db_name]
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if conn.features.supports_sequence_reset:
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sql_list = \
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conn.ops.sequence_reset_by_name_sql(no_style(),
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conn.introspection.sequence_list())
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if sql_list:
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try:
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cursor = conn.cursor()
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for sql in sql_list:
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cursor.execute(sql)
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except Exception:
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transaction.rollback_unless_managed(using=db_name)
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raise
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transaction.commit_unless_managed(using=db_name)
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def _fixture_setup(self):
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# If the test case has a multi_db=True flag, act on all databases.
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# Otherwise, just on the default DB.
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db_names = connections if getattr(self, 'multi_db', False) else [DEFAULT_DB_ALIAS]
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for db_name in db_names:
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# Reset sequences
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if self.reset_sequences:
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self._reset_sequences(db_name)
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|
|
if hasattr(self, 'fixtures'):
|
|
# We have to use this slightly awkward syntax due to the fact
|
|
# that we're using *args and **kwargs together.
|
|
call_command('loaddata', *self.fixtures,
|
|
**{'verbosity': 0, 'database': db_name, 'skip_validation': True})
|
|
|
|
def _urlconf_setup(self):
|
|
if hasattr(self, 'urls'):
|
|
self._old_root_urlconf = settings.ROOT_URLCONF
|
|
settings.ROOT_URLCONF = self.urls
|
|
clear_url_caches()
|
|
|
|
def __call__(self, result=None):
|
|
"""
|
|
Wrapper around default __call__ method to perform common Django test
|
|
set up. This means that user-defined Test Cases aren't required to
|
|
include a call to super().setUp().
|
|
"""
|
|
testMethod = getattr(self, self._testMethodName)
|
|
skipped = (getattr(self.__class__, "__unittest_skip__", False) or
|
|
getattr(testMethod, "__unittest_skip__", False))
|
|
|
|
if not skipped:
|
|
self.client = self.client_class()
|
|
try:
|
|
self._pre_setup()
|
|
except (KeyboardInterrupt, SystemExit):
|
|
raise
|
|
except Exception:
|
|
result.addError(self, sys.exc_info())
|
|
return
|
|
super(TransactionTestCase, self).__call__(result)
|
|
if not skipped:
|
|
try:
|
|
self._post_teardown()
|
|
except (KeyboardInterrupt, SystemExit):
|
|
raise
|
|
except Exception:
|
|
result.addError(self, sys.exc_info())
|
|
return
|
|
|
|
def _post_teardown(self):
|
|
""" Performs any post-test things. This includes:
|
|
|
|
* Putting back the original ROOT_URLCONF if it was changed.
|
|
* Force closing the connection, so that the next test gets
|
|
a clean cursor.
|
|
"""
|
|
self._fixture_teardown()
|
|
self._urlconf_teardown()
|
|
# Some DB cursors include SQL statements as part of cursor
|
|
# creation. If you have a test that does rollback, the effect
|
|
# of these statements is lost, which can effect the operation
|
|
# of tests (e.g., losing a timezone setting causing objects to
|
|
# be created with the wrong time).
|
|
# To make sure this doesn't happen, get a clean connection at the
|
|
# start of every test.
|
|
for conn in connections.all():
|
|
conn.close()
|
|
|
|
def _fixture_teardown(self):
|
|
# If the test case has a multi_db=True flag, flush all databases.
|
|
# Otherwise, just flush default.
|
|
databases = connections if getattr(self, 'multi_db', False) else [DEFAULT_DB_ALIAS]
|
|
for db in databases:
|
|
call_command('flush', verbosity=0, interactive=False, database=db,
|
|
skip_validation=True, reset_sequences=False)
|
|
|
|
def _urlconf_teardown(self):
|
|
if hasattr(self, '_old_root_urlconf'):
|
|
settings.ROOT_URLCONF = self._old_root_urlconf
|
|
clear_url_caches()
|
|
|
|
def assertRedirects(self, response, expected_url, status_code=302,
|
|
target_status_code=200, host=None, msg_prefix=''):
|
|
"""Asserts that a response redirected to a specific URL, and that the
|
|
redirect URL can be loaded.
|
|
|
|
Note that assertRedirects won't work for external links since it uses
|
|
TestClient to do a request.
|
|
"""
|
|
if msg_prefix:
|
|
msg_prefix += ": "
|
|
|
|
if hasattr(response, 'redirect_chain'):
|
|
# The request was a followed redirect
|
|
self.assertTrue(len(response.redirect_chain) > 0,
|
|
msg_prefix + "Response didn't redirect as expected: Response"
|
|
" code was %d (expected %d)" %
|
|
(response.status_code, status_code))
|
|
|
|
self.assertEqual(response.redirect_chain[0][1], status_code,
|
|
msg_prefix + "Initial response didn't redirect as expected:"
|
|
" Response code was %d (expected %d)" %
|
|
(response.redirect_chain[0][1], status_code))
|
|
|
|
url, status_code = response.redirect_chain[-1]
|
|
|
|
self.assertEqual(response.status_code, target_status_code,
|
|
msg_prefix + "Response didn't redirect as expected: Final"
|
|
" Response code was %d (expected %d)" %
|
|
(response.status_code, target_status_code))
|
|
|
|
else:
|
|
# Not a followed redirect
|
|
self.assertEqual(response.status_code, status_code,
|
|
msg_prefix + "Response didn't redirect as expected: Response"
|
|
" code was %d (expected %d)" %
|
|
(response.status_code, status_code))
|
|
|
|
url = response['Location']
|
|
scheme, netloc, path, query, fragment = urlsplit(url)
|
|
|
|
redirect_response = response.client.get(path, QueryDict(query))
|
|
|
|
# Get the redirection page, using the same client that was used
|
|
# to obtain the original response.
|
|
self.assertEqual(redirect_response.status_code, target_status_code,
|
|
msg_prefix + "Couldn't retrieve redirection page '%s':"
|
|
" response code was %d (expected %d)" %
|
|
(path, redirect_response.status_code, target_status_code))
|
|
|
|
e_scheme, e_netloc, e_path, e_query, e_fragment = urlsplit(
|
|
expected_url)
|
|
if not (e_scheme or e_netloc):
|
|
expected_url = urlunsplit(('http', host or 'testserver', e_path,
|
|
e_query, e_fragment))
|
|
|
|
self.assertEqual(url, expected_url,
|
|
msg_prefix + "Response redirected to '%s', expected '%s'" %
|
|
(url, expected_url))
|
|
|
|
def assertContains(self, response, text, count=None, status_code=200,
|
|
msg_prefix='', html=False):
|
|
"""
|
|
Asserts that a response indicates that some content was retrieved
|
|
successfully, (i.e., the HTTP status code was as expected), and that
|
|
``text`` occurs ``count`` times in the content of the response.
|
|
If ``count`` is None, the count doesn't matter - the assertion is true
|
|
if the text occurs at least once in the response.
|
|
"""
|
|
|
|
# If the response supports deferred rendering and hasn't been rendered
|
|
# yet, then ensure that it does get rendered before proceeding further.
|
|
if (hasattr(response, 'render') and callable(response.render)
|
|
and not response.is_rendered):
|
|
response.render()
|
|
|
|
if msg_prefix:
|
|
msg_prefix += ": "
|
|
|
|
self.assertEqual(response.status_code, status_code,
|
|
msg_prefix + "Couldn't retrieve content: Response code was %d"
|
|
" (expected %d)" % (response.status_code, status_code))
|
|
enc_text = smart_str(text, response._charset)
|
|
content = response.content
|
|
if html:
|
|
content = assert_and_parse_html(self, content, None,
|
|
"Response's content is not valid HTML:")
|
|
enc_text = assert_and_parse_html(self, enc_text, None,
|
|
"Second argument is not valid HTML:")
|
|
real_count = content.count(enc_text)
|
|
if count is not None:
|
|
self.assertEqual(real_count, count,
|
|
msg_prefix + "Found %d instances of '%s' in response"
|
|
" (expected %d)" % (real_count, text, count))
|
|
else:
|
|
self.assertTrue(real_count != 0,
|
|
msg_prefix + "Couldn't find '%s' in response" % text)
|
|
|
|
def assertNotContains(self, response, text, status_code=200,
|
|
msg_prefix='', html=False):
|
|
"""
|
|
Asserts that a response indicates that some content was retrieved
|
|
successfully, (i.e., the HTTP status code was as expected), and that
|
|
``text`` doesn't occurs in the content of the response.
|
|
"""
|
|
|
|
# If the response supports deferred rendering and hasn't been rendered
|
|
# yet, then ensure that it does get rendered before proceeding further.
|
|
if (hasattr(response, 'render') and callable(response.render)
|
|
and not response.is_rendered):
|
|
response.render()
|
|
|
|
if msg_prefix:
|
|
msg_prefix += ": "
|
|
|
|
self.assertEqual(response.status_code, status_code,
|
|
msg_prefix + "Couldn't retrieve content: Response code was %d"
|
|
" (expected %d)" % (response.status_code, status_code))
|
|
enc_text = smart_str(text, response._charset)
|
|
content = response.content
|
|
if html:
|
|
content = assert_and_parse_html(self, content, None,
|
|
'Response\'s content is not valid HTML:')
|
|
enc_text = assert_and_parse_html(self, enc_text, None,
|
|
'Second argument is not valid HTML:')
|
|
self.assertEqual(content.count(enc_text), 0,
|
|
msg_prefix + "Response should not contain '%s'" % text)
|
|
|
|
def assertFormError(self, response, form, field, errors, msg_prefix=''):
|
|
"""
|
|
Asserts that a form used to render the response has a specific field
|
|
error.
|
|
"""
|
|
if msg_prefix:
|
|
msg_prefix += ": "
|
|
|
|
# Put context(s) into a list to simplify processing.
|
|
contexts = to_list(response.context)
|
|
if not contexts:
|
|
self.fail(msg_prefix + "Response did not use any contexts to "
|
|
"render the response")
|
|
|
|
# Put error(s) into a list to simplify processing.
|
|
errors = to_list(errors)
|
|
|
|
# Search all contexts for the error.
|
|
found_form = False
|
|
for i,context in enumerate(contexts):
|
|
if form not in context:
|
|
continue
|
|
found_form = True
|
|
for err in errors:
|
|
if field:
|
|
if field in context[form].errors:
|
|
field_errors = context[form].errors[field]
|
|
self.assertTrue(err in field_errors,
|
|
msg_prefix + "The field '%s' on form '%s' in"
|
|
" context %d does not contain the error '%s'"
|
|
" (actual errors: %s)" %
|
|
(field, form, i, err, repr(field_errors)))
|
|
elif field in context[form].fields:
|
|
self.fail(msg_prefix + "The field '%s' on form '%s'"
|
|
" in context %d contains no errors" %
|
|
(field, form, i))
|
|
else:
|
|
self.fail(msg_prefix + "The form '%s' in context %d"
|
|
" does not contain the field '%s'" %
|
|
(form, i, field))
|
|
else:
|
|
non_field_errors = context[form].non_field_errors()
|
|
self.assertTrue(err in non_field_errors,
|
|
msg_prefix + "The form '%s' in context %d does not"
|
|
" contain the non-field error '%s'"
|
|
" (actual errors: %s)" %
|
|
(form, i, err, non_field_errors))
|
|
if not found_form:
|
|
self.fail(msg_prefix + "The form '%s' was not used to render the"
|
|
" response" % form)
|
|
|
|
def assertTemplateUsed(self, response=None, template_name=None, msg_prefix=''):
|
|
"""
|
|
Asserts that the template with the provided name was used in rendering
|
|
the response. Also usable as context manager.
|
|
"""
|
|
if response is None and template_name is None:
|
|
raise TypeError('response and/or template_name argument must be provided')
|
|
|
|
if msg_prefix:
|
|
msg_prefix += ": "
|
|
|
|
# Use assertTemplateUsed as context manager.
|
|
if not hasattr(response, 'templates') or (response is None and template_name):
|
|
if response:
|
|
template_name = response
|
|
response = None
|
|
context = _AssertTemplateUsedContext(self, template_name)
|
|
return context
|
|
|
|
template_names = [t.name for t in response.templates]
|
|
if not template_names:
|
|
self.fail(msg_prefix + "No templates used to render the response")
|
|
self.assertTrue(template_name in template_names,
|
|
msg_prefix + "Template '%s' was not a template used to render"
|
|
" the response. Actual template(s) used: %s" %
|
|
(template_name, ', '.join(template_names)))
|
|
|
|
def assertTemplateNotUsed(self, response=None, template_name=None, msg_prefix=''):
|
|
"""
|
|
Asserts that the template with the provided name was NOT used in
|
|
rendering the response. Also usable as context manager.
|
|
"""
|
|
if response is None and template_name is None:
|
|
raise TypeError('response and/or template_name argument must be provided')
|
|
|
|
if msg_prefix:
|
|
msg_prefix += ": "
|
|
|
|
# Use assertTemplateUsed as context manager.
|
|
if not hasattr(response, 'templates') or (response is None and template_name):
|
|
if response:
|
|
template_name = response
|
|
response = None
|
|
context = _AssertTemplateNotUsedContext(self, template_name)
|
|
return context
|
|
|
|
template_names = [t.name for t in response.templates]
|
|
self.assertFalse(template_name in template_names,
|
|
msg_prefix + "Template '%s' was used unexpectedly in rendering"
|
|
" the response" % template_name)
|
|
|
|
def assertQuerysetEqual(self, qs, values, transform=repr, ordered=True):
|
|
if not ordered:
|
|
return self.assertEqual(set(map(transform, qs)), set(values))
|
|
return self.assertEqual(map(transform, qs), values)
|
|
|
|
def assertNumQueries(self, num, func=None, *args, **kwargs):
|
|
using = kwargs.pop("using", DEFAULT_DB_ALIAS)
|
|
conn = connections[using]
|
|
|
|
context = _AssertNumQueriesContext(self, num, conn)
|
|
if func is None:
|
|
return context
|
|
|
|
with context:
|
|
func(*args, **kwargs)
|
|
|
|
|
|
def connections_support_transactions():
|
|
"""
|
|
Returns True if all connections support transactions.
|
|
"""
|
|
return all(conn.features.supports_transactions
|
|
for conn in connections.all())
|
|
|
|
|
|
class TestCase(TransactionTestCase):
|
|
"""
|
|
Does basically the same as TransactionTestCase, but surrounds every test
|
|
with a transaction, monkey-patches the real transaction management routines
|
|
to do nothing, and rollsback the test transaction at the end of the test.
|
|
You have to use TransactionTestCase, if you need transaction management
|
|
inside a test.
|
|
"""
|
|
|
|
def _fixture_setup(self):
|
|
if not connections_support_transactions():
|
|
return super(TestCase, self)._fixture_setup()
|
|
|
|
assert not self.reset_sequences, 'reset_sequences cannot be used on TestCase instances'
|
|
|
|
# If the test case has a multi_db=True flag, setup all databases.
|
|
# Otherwise, just use default.
|
|
db_names = connections if getattr(self, 'multi_db', False) else [DEFAULT_DB_ALIAS]
|
|
|
|
for db_name in db_names:
|
|
transaction.enter_transaction_management(using=db_name)
|
|
transaction.managed(True, using=db_name)
|
|
disable_transaction_methods()
|
|
|
|
from django.contrib.sites.models import Site
|
|
Site.objects.clear_cache()
|
|
|
|
for db in db_names:
|
|
if hasattr(self, 'fixtures'):
|
|
call_command('loaddata', *self.fixtures,
|
|
**{
|
|
'verbosity': 0,
|
|
'commit': False,
|
|
'database': db,
|
|
'skip_validation': True,
|
|
})
|
|
|
|
def _fixture_teardown(self):
|
|
if not connections_support_transactions():
|
|
return super(TestCase, self)._fixture_teardown()
|
|
|
|
# If the test case has a multi_db=True flag, teardown all databases.
|
|
# Otherwise, just teardown default.
|
|
if getattr(self, 'multi_db', False):
|
|
databases = connections
|
|
else:
|
|
databases = [DEFAULT_DB_ALIAS]
|
|
|
|
restore_transaction_methods()
|
|
for db in databases:
|
|
transaction.rollback(using=db)
|
|
transaction.leave_transaction_management(using=db)
|
|
|
|
|
|
def _deferredSkip(condition, reason):
|
|
def decorator(test_func):
|
|
if not (isinstance(test_func, type) and
|
|
issubclass(test_func, TestCase)):
|
|
@wraps(test_func)
|
|
def skip_wrapper(*args, **kwargs):
|
|
if condition():
|
|
raise ut2.SkipTest(reason)
|
|
return test_func(*args, **kwargs)
|
|
test_item = skip_wrapper
|
|
else:
|
|
test_item = test_func
|
|
test_item.__unittest_skip_why__ = reason
|
|
return test_item
|
|
return decorator
|
|
|
|
|
|
def skipIfDBFeature(feature):
|
|
"""
|
|
Skip a test if a database has the named feature
|
|
"""
|
|
return _deferredSkip(lambda: getattr(connection.features, feature),
|
|
"Database has feature %s" % feature)
|
|
|
|
|
|
def skipUnlessDBFeature(feature):
|
|
"""
|
|
Skip a test unless a database has the named feature
|
|
"""
|
|
return _deferredSkip(lambda: not getattr(connection.features, feature),
|
|
"Database doesn't support feature %s" % feature)
|
|
|
|
|
|
class QuietWSGIRequestHandler(WSGIRequestHandler):
|
|
"""
|
|
Just a regular WSGIRequestHandler except it doesn't log to the standard
|
|
output any of the requests received, so as to not clutter the output for
|
|
the tests' results.
|
|
"""
|
|
|
|
def log_message(*args):
|
|
pass
|
|
|
|
|
|
class _ImprovedEvent(threading._Event):
|
|
"""
|
|
Does the same as `threading.Event` except it overrides the wait() method
|
|
with some code borrowed from Python 2.7 to return the set state of the
|
|
event (see: http://hg.python.org/cpython/rev/b5aa8aa78c0f/). This allows
|
|
to know whether the wait() method exited normally or because of the
|
|
timeout. This class can be removed when Django supports only Python >= 2.7.
|
|
"""
|
|
|
|
def wait(self, timeout=None):
|
|
self._Event__cond.acquire()
|
|
try:
|
|
if not self._Event__flag:
|
|
self._Event__cond.wait(timeout)
|
|
return self._Event__flag
|
|
finally:
|
|
self._Event__cond.release()
|
|
|
|
|
|
class StoppableWSGIServer(WSGIServer):
|
|
"""
|
|
The code in this class is borrowed from the `SocketServer.BaseServer` class
|
|
in Python 2.6. The important functionality here is that the server is non-
|
|
blocking and that it can be shut down at any moment. This is made possible
|
|
by the server regularly polling the socket and checking if it has been
|
|
asked to stop.
|
|
Note for the future: Once Django stops supporting Python 2.6, this class
|
|
can be removed as `WSGIServer` will have this ability to shutdown on
|
|
demand and will not require the use of the _ImprovedEvent class whose code
|
|
is borrowed from Python 2.7.
|
|
"""
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
super(StoppableWSGIServer, self).__init__(*args, **kwargs)
|
|
self.__is_shut_down = _ImprovedEvent()
|
|
self.__serving = False
|
|
|
|
def serve_forever(self, poll_interval=0.5):
|
|
"""
|
|
Handle one request at a time until shutdown.
|
|
|
|
Polls for shutdown every poll_interval seconds.
|
|
"""
|
|
self.__serving = True
|
|
self.__is_shut_down.clear()
|
|
while self.__serving:
|
|
r, w, e = select.select([self], [], [], poll_interval)
|
|
if r:
|
|
self._handle_request_noblock()
|
|
self.__is_shut_down.set()
|
|
|
|
def shutdown(self):
|
|
"""
|
|
Stops the serve_forever loop.
|
|
|
|
Blocks until the loop has finished. This must be called while
|
|
serve_forever() is running in another thread, or it will
|
|
deadlock.
|
|
"""
|
|
self.__serving = False
|
|
if not self.__is_shut_down.wait(2):
|
|
raise RuntimeError(
|
|
"Failed to shutdown the live test server in 2 seconds. The "
|
|
"server might be stuck or generating a slow response.")
|
|
|
|
def handle_request(self):
|
|
"""Handle one request, possibly blocking.
|
|
"""
|
|
fd_sets = select.select([self], [], [], None)
|
|
if not fd_sets[0]:
|
|
return
|
|
self._handle_request_noblock()
|
|
|
|
def _handle_request_noblock(self):
|
|
"""
|
|
Handle one request, without blocking.
|
|
|
|
I assume that select.select has returned that the socket is
|
|
readable before this function was called, so there should be
|
|
no risk of blocking in get_request().
|
|
"""
|
|
try:
|
|
request, client_address = self.get_request()
|
|
except socket.error:
|
|
return
|
|
if self.verify_request(request, client_address):
|
|
try:
|
|
self.process_request(request, client_address)
|
|
except Exception:
|
|
self.handle_error(request, client_address)
|
|
self.close_request(request)
|
|
|
|
|
|
class _MediaFilesHandler(StaticFilesHandler):
|
|
"""
|
|
Handler for serving the media files. This is a private class that is
|
|
meant to be used solely as a convenience by LiveServerThread.
|
|
"""
|
|
|
|
def get_base_dir(self):
|
|
return settings.MEDIA_ROOT
|
|
|
|
def get_base_url(self):
|
|
return settings.MEDIA_URL
|
|
|
|
def serve(self, request):
|
|
relative_url = request.path[len(self.base_url[2]):]
|
|
return serve(request, relative_url, document_root=self.get_base_dir())
|
|
|
|
|
|
class LiveServerThread(threading.Thread):
|
|
"""
|
|
Thread for running a live http server while the tests are running.
|
|
"""
|
|
|
|
def __init__(self, host, possible_ports, connections_override=None):
|
|
self.host = host
|
|
self.port = None
|
|
self.possible_ports = possible_ports
|
|
self.is_ready = threading.Event()
|
|
self.error = None
|
|
self.connections_override = connections_override
|
|
super(LiveServerThread, self).__init__()
|
|
|
|
def run(self):
|
|
"""
|
|
Sets up the live server and databases, and then loops over handling
|
|
http requests.
|
|
"""
|
|
if self.connections_override:
|
|
from django.db import connections
|
|
# Override this thread's database connections with the ones
|
|
# provided by the main thread.
|
|
for alias, conn in self.connections_override.items():
|
|
connections[alias] = conn
|
|
try:
|
|
# Create the handler for serving static and media files
|
|
handler = StaticFilesHandler(_MediaFilesHandler(WSGIHandler()))
|
|
|
|
# Go through the list of possible ports, hoping that we can find
|
|
# one that is free to use for the WSGI server.
|
|
for index, port in enumerate(self.possible_ports):
|
|
try:
|
|
self.httpd = StoppableWSGIServer(
|
|
(self.host, port), QuietWSGIRequestHandler)
|
|
except WSGIServerException as e:
|
|
if (index + 1 < len(self.possible_ports) and
|
|
e.args[0].errno == errno.EADDRINUSE):
|
|
# This port is already in use, so we go on and try with
|
|
# the next one in the list.
|
|
continue
|
|
else:
|
|
# Either none of the given ports are free or the error
|
|
# is something else than "Address already in use". So
|
|
# we let that error bubble up to the main thread.
|
|
raise
|
|
else:
|
|
# A free port was found.
|
|
self.port = port
|
|
break
|
|
|
|
self.httpd.set_app(handler)
|
|
self.is_ready.set()
|
|
self.httpd.serve_forever()
|
|
except Exception as e:
|
|
self.error = e
|
|
self.is_ready.set()
|
|
|
|
def join(self, timeout=None):
|
|
if hasattr(self, 'httpd'):
|
|
# Stop the WSGI server
|
|
self.httpd.shutdown()
|
|
self.httpd.server_close()
|
|
super(LiveServerThread, self).join(timeout)
|
|
|
|
|
|
class LiveServerTestCase(TransactionTestCase):
|
|
"""
|
|
Does basically the same as TransactionTestCase but also launches a live
|
|
http server in a separate thread so that the tests may use another testing
|
|
framework, such as Selenium for example, instead of the built-in dummy
|
|
client.
|
|
Note that it inherits from TransactionTestCase instead of TestCase because
|
|
the threads do not share the same transactions (unless if using in-memory
|
|
sqlite) and each thread needs to commit all their transactions so that the
|
|
other thread can see the changes.
|
|
"""
|
|
|
|
@property
|
|
def live_server_url(self):
|
|
return 'http://%s:%s' % (
|
|
self.server_thread.host, self.server_thread.port)
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
connections_override = {}
|
|
for conn in connections.all():
|
|
# If using in-memory sqlite databases, pass the connections to
|
|
# the server thread.
|
|
if (conn.settings_dict['ENGINE'] == 'django.db.backends.sqlite3'
|
|
and conn.settings_dict['NAME'] == ':memory:'):
|
|
# Explicitly enable thread-shareability for this connection
|
|
conn.allow_thread_sharing = True
|
|
connections_override[conn.alias] = conn
|
|
|
|
# Launch the live server's thread
|
|
specified_address = os.environ.get(
|
|
'DJANGO_LIVE_TEST_SERVER_ADDRESS', 'localhost:8081')
|
|
|
|
# The specified ports may be of the form '8000-8010,8080,9200-9300'
|
|
# i.e. a comma-separated list of ports or ranges of ports, so we break
|
|
# it down into a detailed list of all possible ports.
|
|
possible_ports = []
|
|
try:
|
|
host, port_ranges = specified_address.split(':')
|
|
for port_range in port_ranges.split(','):
|
|
# A port range can be of either form: '8000' or '8000-8010'.
|
|
extremes = map(int, port_range.split('-'))
|
|
assert len(extremes) in [1, 2]
|
|
if len(extremes) == 1:
|
|
# Port range of the form '8000'
|
|
possible_ports.append(extremes[0])
|
|
else:
|
|
# Port range of the form '8000-8010'
|
|
for port in range(extremes[0], extremes[1] + 1):
|
|
possible_ports.append(port)
|
|
except Exception:
|
|
raise ImproperlyConfigured('Invalid address ("%s") for live '
|
|
'server.' % specified_address)
|
|
cls.server_thread = LiveServerThread(
|
|
host, possible_ports, connections_override)
|
|
cls.server_thread.daemon = True
|
|
cls.server_thread.start()
|
|
|
|
# Wait for the live server to be ready
|
|
cls.server_thread.is_ready.wait()
|
|
if cls.server_thread.error:
|
|
raise cls.server_thread.error
|
|
|
|
super(LiveServerTestCase, cls).setUpClass()
|
|
|
|
@classmethod
|
|
def tearDownClass(cls):
|
|
# There may not be a 'server_thread' attribute if setUpClass() for some
|
|
# reasons has raised an exception.
|
|
if hasattr(cls, 'server_thread'):
|
|
# Terminate the live server's thread
|
|
cls.server_thread.join()
|
|
|
|
# Restore sqlite connections' non-sharability
|
|
for conn in connections.all():
|
|
if (conn.settings_dict['ENGINE'] == 'django.db.backends.sqlite3'
|
|
and conn.settings_dict['NAME'] == ':memory:'):
|
|
conn.allow_thread_sharing = False
|
|
|
|
super(LiveServerTestCase, cls).tearDownClass()
|