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Commit 56250007 authored by Arnaud Fontaine's avatar Arnaud Fontaine
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ERP5TypeFunctionalTestCase: Backported from master branch to use the latest... 

ERP5TypeFunctionalTestCase: Backported from master branch to use the latest Firefox with geckodriver/marionette.

erp5testnode for Functional Tests uses:
  https://lab.nexedi.com/nexedi/slapos/raw/master/software/seleniumrunner/software.cfg
parent c063c8d0
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Showing with 277 additions and 272 deletions
product/ERP5Type/tests/ERP5TypeFunctionalTestCase.py
View file @ 56250007
"""
XXX: Backported from master to use geckodriver/marionette and latest Firefox
"""
##############################################################################
#
# Copyright (c) 2011 Nexedi SARL and Contributors. All Rights Reserved.
......@@ -28,28 +31,96 @@
##############################################################################
import os
import signal
import sys
import time
import re
import subprocess
import shutil
import transaction
import logging
from ZPublisher.HTTPResponse import HTTPResponse
from Products.ERP5Type.tests.ERP5TypeTestCase import ERP5TypeTestCase, \
_getConversionServerDict
# REGEX FOR ZELENIUM TESTS
TEST_PASS_RE = re.compile('<th[^>]*>Tests passed</th>\n\s*<td[^>]*>([^<]*)')
TEST_FAILURE_RE = re.compile('<th[^>]*>Tests failed</th>\n\s*<td[^>]*>([^<]*)')
IMAGE_RE = re.compile('<img[^>]*?>')
TEST_ERROR_TITLE_RE = re.compile('(?:error.gif.*?>|title status_failed"><td[^>]*>)([^>]*?)</td></tr>', re.S)
TEST_RESULT_RE = re.compile('<div style="padding-top: 10px;">\s*<p>\s*'
'<img.*?</div>\s.*?</div>\s*', re.S)
TEST_ERROR_RESULT_RE = re.compile('.*(?:error.gif|title status_failed).*', re.S)
EXPECTED_FAILURE_RE = re.compile('.*expected failure.*', re.I)
ZELENIUM_BASE_URL = "%s/portal_tests/%s/core/TestRunner.html?test=../test_suite_html&auto=on&resultsUrl=../postResults&__ac_name=%s&__ac_password=%s"
from zExceptions.ExceptionFormatter import format_exception
from Products.ERP5Type.tests.ERP5TypeTestCase import ERP5TypeTestCase
## XXX: Copy/paste from master
#from Products.ERP5Type.Utils import stopProcess, PR_SET_PDEATHSIG
import threading
def stopProcess(process, graceful=5):
if process.pid and process.returncode is None:
if graceful:
process.terminate()
t = threading.Timer(graceful, process.kill)
t.start()
# PY3: use waitid(WNOWAIT) and call process.poll() after t.cancel()
r = process.wait()
t.cancel()
return r
process.kill()
return process.wait()
import os
from ctypes import CDLL, util as ctypes_util, get_errno, c_int, c_long
libc = CDLL(ctypes_util.find_library('c'), use_errno=True)
class Prctl(object):
def __init__(self, option, nargs=1):
self.option = option
self.args0 = (0,) * (4 - nargs)
def __call__(self, *args):
try:
prctl = self._prctl
except AttributeError:
prctl = self._prctl = libc.prctl
prctl.argtypes = c_int, c_long, c_long, c_long, c_long
r = prctl(self.option, *(args + self.args0))
if r == -1:
e = get_errno()
raise OSError(e, os.strerror(e))
return r
PR_SET_PDEATHSIG = Prctl(1)
from lxml import etree
from lxml.html import builder as E
from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
logger = logging.getLogger(__name__)
# selenium workaround for localhost / 127.0.0.1 resolution
# ------
# Selenium connects starts a service on localhost, but when ERP5
# is running under userhosts wrapper, because we don't have entry for
# localhost in our pseudo /etc/hosts file, localhost resolution is delegated
# to local DNS, which might not resolve localhost - for example 8.8.8.8
# does not.
# We work around this by monkey-patching the places in selenium where
# localhost resolution is required and returning 127.0.0.1 directly.
# This is not really correct, it would be better to use SlapOS partition IP,
# but we need a quick fix to have test results again.
# Service.start polls utils.is_connectable(port) - without host argument, assuming the default
# localhost.
# https://github.com/SeleniumHQ/selenium/blob/selenium-3.14.0/py/selenium/webdriver/common/service.py#L99
import selenium.webdriver.common.utils
original_is_connectable = selenium.webdriver.common.utils.is_connectable
def is_connectable(port, host="localhost"):
if host == "localhost":
host = "127.0.0.1"
return original_is_connectable(port, host)
selenium.webdriver.common.utils.is_connectable = is_connectable
# Service.get_service_url hardcodes 127.0.0.1
# https://github.com/SeleniumHQ/selenium/blob/selenium-3.14.0/py/selenium/webdriver/common/service.py#L56
original_join_host_port = selenium.webdriver.common.utils.join_host_port
def join_host_port(host, port):
if host == "localhost":
host = "127.0.0.1"
return original_join_host_port(host, port)
selenium.webdriver.common.utils.join_host_port = join_host_port
# /selenium workaround
ZELENIUM_BASE_URL = "%s/portal_tests/%s/core/TestRunner.html?test=../test_suite_html&auto=on&resultsUrl=../postResults"
tests_framework_home = os.path.dirname(os.path.abspath(__file__))
# handle 'system global' instance
......@@ -67,7 +138,20 @@ bt5_dir_list = ','.join([
class TimeoutError(Exception):
pass
class Xvfb:
class Process(object):
def preexec_fn(self):
PR_SET_PDEATHSIG(signal.SIGTERM)
def _exec(self, *args, **kw):
self.process = subprocess.Popen(preexec_fn=self.preexec_fn, *args, **kw)
def quit(self):
if hasattr(self, 'process'):
stopProcess(self.process)
del self.process
class Xvfb(Process):
def __init__(self, fbdir):
self.display_list = [":%s" % i for i in range(123, 144)]
self.display = None
......@@ -76,7 +160,7 @@ class Xvfb:
def _runCommand(self, display):
xvfb_bin = os.environ.get("xvfb_bin", "Xvfb")
with open(os.devnull, 'w') as null:
self.process = subprocess.Popen(
self._exec(
(xvfb_bin, '-fbdir' , self.fbdir, display,
'-screen', '0', '1280x1024x24'),
stdout=null, stderr=null, close_fds=True)
......@@ -97,180 +181,23 @@ class Xvfb:
def run(self):
for display_try in self.display_list:
lock_filepath = '/tmp/.X%s-lock' % display_try.replace(":", "")
if not os.path.exists(lock_filepath):
self._runCommand(display_try)
if self.process.poll() is None:
self.display = display_try
os.environ['DISPLAY'] = self.display
break
else:
raise EnvironmentError("All displays locked : %r" % (self.display_list,))
print 'Xvfb : %d' % self.process.pid
print 'Take screenshots using xwud -in %s/Xvfb_screen0' % self.fbdir
def quit(self):
if hasattr(self, 'process'):
self.process.terminate()
class Browser:
def __init__(self, profile_dir, host, port):
self.profile_dir = profile_dir
self.host = host
self.port = port
def quit(self):
if getattr(self, "process", None) is not None:
self.process.kill()
def _run(self, url, display):
""" This method should be implemented on a subclass """
raise NotImplementedError
def _setEnviron(self):
pass
def run(self, url, display):
self.clean()
self.environ = os.environ.copy()
self._setEnviron()
self._setDisplay(display)
self._run(url)
print "Browser %s running on pid: %s" % (self.__class__.__name__,
self.process.pid)
def clean(self):
""" Clean up removing profile dir and recreating it"""
shutil.rmtree(self.profile_dir, ignore_errors=True)
os.mkdir(self.profile_dir)
def _createFile(self, filename, content):
file_path = os.path.join(self.profile_dir, filename)
with open(file_path, 'w') as f:
f.write(content)
return file_path
def _setDisplay(self, display):
if display:
self.environ["DISPLAY"] = display
else:
xauth = os.path.expanduser('~/.Xauthority')
if os.path.exists(xauth):
self.environ["XAUTHORITY"] = xauth
def _runCommand(self, *args):
print " ".join(args)
self.process = subprocess.Popen(args, close_fds=True, env=self.environ)
class Firefox(Browser):
""" Use firefox to open run all the tests"""
def _setEnviron(self):
self.environ['MOZ_NO_REMOTE'] = '1'
self.environ['HOME'] = self.profile_dir
self.environ['LC_ALL'] = 'C'
self.environ["MOZ_CRASHREPORTER_DISABLE"] = "1"
self.environ["NO_EM_RESTART"] = "1"
# This disables unwanted SCIM as it fails with Xvfb, at least on Mandriva
# 2010.0, because Firefox tries to start scim-bridge which SIGSEGV and
# thus Firefox is stucked on register_imcontext()
for remove_environment_variable in ('GTK_IM_MODULE',
'XIM_PROGRAM',
'XMODIFIERS',
'QT_IM_MODULE'):
self.environ.pop(remove_environment_variable, None)
def _run(self, url):
# Prepare to run
self._createFile('prefs.js', self.getPrefJs())
firefox_bin = os.environ.get("firefox_bin", "firefox")
self._runCommand(firefox_bin, "-no-remote",
"-profile", self.profile_dir, url)
def getPrefJs(self):
from App.config import getConfiguration
return """
// Don't ask if we want to switch default browsers
user_pref("browser.shell.checkDefaultBrowser", false);
// Disable pop-up blocking
user_pref("browser.allowpopups", true);
user_pref("dom.disable_open_during_load", false);
// Configure us as the local proxy
//user_pref("network.proxy.type", 2);
// Disable security warnings
user_pref("security.warn_submit_insecure", false);
user_pref("security.warn_submit_insecure.show_once", false);
user_pref("security.warn_entering_secure", false);
user_pref("security.warn_entering_secure.show_once", false);
user_pref("security.warn_entering_weak", false);
user_pref("security.warn_entering_weak.show_once", false);
user_pref("security.warn_leaving_secure", false);
user_pref("security.warn_leaving_secure.show_once", false);
user_pref("security.warn_viewing_mixed", false);
user_pref("security.warn_viewing_mixed.show_once", false);
// Disable "do you want to remember this password?"
user_pref("signon.rememberSignons", false);
// increase the timeout before warning of unresponsive script
user_pref("dom.max_script_run_time", 120);
// this is required to upload files
user_pref("capability.principal.codebase.p1.granted", "UniversalFileRead");
user_pref("signed.applets.codebase_principal_support", true);
user_pref("capability.principal.codebase.p1.id", "http://%s:%s");
user_pref("capability.principal.codebase.p1.subjectName", "");
// For debugging, do not waste space on screen
user_pref("browser.tabs.autoHide", true);
// This is required to download reports without requiring user interaction
// (See ERP5UpgradeUtils for corresponding Extensions)
user_pref("browser.download.folderList", 2);
user_pref("browser.download.manager.showWhenStarting", false);
user_pref("browser.download.dir", "%s");
user_pref("browser.helperApps.neverAsk.saveToDisk", "application/pdf");
// Otherwise clear previously defined PDF-related extensions
// => browser/extensions/pdfjs/content/PdfJs.jsm:_migrate()
user_pref("pdfjs.disabled", true);
// Not really necessary (just FTR)
user_pref("pdfjs.migrationVersion", 42);
""" % (self.host, self.port,
os.path.join(getConfiguration().instancehome, 'var'))
class PhantomJS(Browser):
def _createRunJS(self):
run_js = """
var page = new WebPage(),
address;
address = phantom.args[0];
page.open(address, function (status) {
if (status !== 'success') {
console.log('FAIL to load the address');
} else {
console.log('SUCCESS load the address');
}
phantom.exit();
});
"""
return self._createFile('run.js', run_js)
def _run(self, url):
self._runCommand("phantomjs", self._createRunJS(), url)
logger.debug('Xvfb : %d', self.process.pid)
logger.debug('Take screenshots using xwud -in %s/Xvfb_screen0', self.fbdir)
class FunctionalTestRunner:
remote_code_url_list = None
# There is no test that can take more than 6 hours
timeout = 6.0 * 3600
def __init__(self, host, port, portal, run_only='', use_phanthom=False):
def __init__(self, host, port, portal, run_only=''):
self.instance_home = os.environ['INSTANCE_HOME']
# Such information should be automatically loaded
......@@ -279,79 +206,129 @@ class FunctionalTestRunner:
self.run_only = run_only
profile_dir = os.path.join(self.instance_home, 'profile')
self.portal = portal
if use_phanthom:
self.browser = PhantomJS(profile_dir, host, int(port))
else:
self.browser = Firefox(profile_dir, host, int(port))
def getStatus(self):
transaction.begin()
if self.remote_code_url_list is not None:
# Zuite Results are posted at the root of the portal in this case
return self.portal.portal_tests.TestTool_getResults()
else:
return self.portal.portal_tests.TestTool_getResults(self.run_only)
def _getTestURL(self):
if self.remote_code_url_list is not None:
remote_code_url = "&".join(["url_list:list=%s" % url for url in self.remote_code_url_list])
if self.run_only != "":
remote_code_url += "&zuite_id=%s" % self.run_only
return '%s/portal_tests/Zuite_runSeleniumTest?%s&resultsUrl=../postResults&__ac_name=%s&__ac_password=%s' \
% (self.portal.portal_url(), remote_code_url, self.user, self.password)
def _getTestBaseURL(self):
# Access the https proxy in front of runUnitTest's zserver
base_url = os.getenv('zserver_frontend_url')
if base_url:
return '%s%s' % (base_url, self.portal.getId())
return self.portal.portal_url()
return ZELENIUM_BASE_URL % (self.portal.portal_url(), self.run_only,
self.user, self.password)
def _getTestURL(self):
return ZELENIUM_BASE_URL % (
self._getTestBaseURL(),
self.run_only,
)
def test(self, debug=0):
try:
xvfb = Xvfb(self.instance_home)
start = time.time()
if not debug:
print("\nSet 'erp5_debug_mode' environment variable to 1"
" to use your existing display instead of Xvfb.")
try:
if not (debug and os.getenv('DISPLAY')):
logger.debug("You can set 'erp5_debug_mode' environment variable to 1 to use your existing display instead of Xvfb.")
xvfb.run()
self.browser.run(self._getTestURL() , xvfb.display)
while True:
status = self.getStatus()
if status is not None and not '>ONGOING<' in status:
break
time.sleep(10)
if (time.time() - start) > float(self.timeout):
# TODO: here we could take a screenshot and display it in the report
# (maybe using data: scheme inside a <img>)
raise TimeoutError("Test took more than %s seconds" % self.timeout)
if self.browser.process.poll():
raise RuntimeError('Test browser is no longer running.')
except:
print("ERP5TypeFunctionalTestCase.test Exception: %r" % (sys.exc_info(),))
raise
capabilities = webdriver.common.desired_capabilities \
.DesiredCapabilities.FIREFOX.copy()
capabilities['marionette'] = True
# Zope is accessed through apache with a certificate not trusted by firefox
capabilities['acceptInsecureCerts'] = True
# Service workers are disabled on Firefox 52 ESR:
# https://bugzilla.mozilla.org/show_bug.cgi?id=1338144
options = webdriver.FirefoxOptions()
options.set_preference('dom.serviceWorkers.enabled', True)
kw = dict(capabilities=capabilities, options=options)
firefox_bin = os.environ.get('firefox_bin')
if firefox_bin:
geckodriver = os.path.join(os.path.dirname(firefox_bin), 'geckodriver')
kw.update(firefox_binary=firefox_bin, executable_path=geckodriver)
browser = webdriver.Firefox(**kw)
start_time = time.time()
logger.info("Running with browser: %s", browser)
logger.info("Reported user agent: %s", browser.execute_script("return navigator.userAgent"))
logger.info(
"Reported screen information: %s",
browser.execute_script(
'''
return JSON.stringify({
'screen.width': window.screen.width,
'screen.height': window.screen.height,
'screen.pixelDepth': window.screen.pixelDepth,
'innerWidth': window.innerWidth,
'innerHeight': window.innerHeight
})'''))
browser.get(self._getTestBaseURL() + '/login_form')
login_field = WebDriverWait(browser, 10).until(
EC.presence_of_element_located((By.NAME, '__ac_name')),
)
login_field.clear()
login_field.send_keys(self.user)
password_field = browser.find_element_by_name('__ac_password')
password_field.clear()
password_field.send_keys(self.password)
login_form_url = browser.current_url
password_field.submit()
WebDriverWait(browser, 10).until(EC.url_changes(login_form_url))
WebDriverWait(browser, 10).until(EC.presence_of_element_located((By.TAG_NAME, 'body')))
browser.get(self._getTestURL())
WebDriverWait(browser, 10).until(EC.presence_of_element_located((
By.XPATH, '//iframe[@id="testSuiteFrame"]'
)))
# XXX No idea how to wait for the iframe content to be loaded
time.sleep(5)
# Count number of test to be executed
test_count = browser.execute_script(
"return document.getElementById('testSuiteFrame').contentDocument.querySelector('tbody').children.length"
) - 1
WebDriverWait(browser, self.timeout).until(EC.presence_of_element_located((
By.XPATH, '//td[@id="testRuns" and contains(text(), "%i")]' % test_count
)))
self.execution_duration = round(time.time() - start_time, 2)
html_parser = etree.HTMLParser(recover=True)
iframe = etree.fromstring(
browser.execute_script(
"return document.getElementById('testSuiteFrame').contentDocument.querySelector('html').innerHTML"
).encode('UTF-8'),
html_parser
)
browser.quit()
finally:
xvfb.quit()
if getattr(self, "browser", None) is not None:
self.browser.quit()
def processResult(self):
file_content = self.getStatus().encode("utf-8", "replace")
sucess_amount = int(TEST_PASS_RE.search(file_content).group(1))
failure_amount = int(TEST_FAILURE_RE.search(file_content).group(1))
error_title_list = [re.compile('\s+').sub(' ', x).strip()
for x in TEST_ERROR_TITLE_RE.findall(file_content)]
is_expected_failure = lambda x: EXPECTED_FAILURE_RE.match(x)
expected_failure_amount = len(filter(is_expected_failure, error_title_list))
# Remove expected failures from list
error_title_list = filter(lambda x: not is_expected_failure(x), error_title_list)
failure_amount -= expected_failure_amount
detail = ''
for test_result in TEST_RESULT_RE.findall(file_content):
if TEST_ERROR_RESULT_RE.match(test_result):
detail += test_result
detail = IMAGE_RE.sub('', detail)
return iframe
def processResult(self, iframe):
tbody = iframe.xpath('.//body/table/tbody')[0]
tr_count = failure_amount = expected_failure_amount = 0
error_title_list = []
detail = ""
for tr in tbody:
if tr_count:
# First td is the main title
test_name = tr[0][0].text
error = False
if len(tr) == 1:
# Test was not executed
detail += 'Test ' + test_name + ' not executed'
error_title_list.append(test_name)
else:
test_table = tr[1].xpath('.//table')[0]
status = tr.attrib.get('class')
if 'status_failed' in status:
if etree.tostring(test_table).find("expected failure") != -1:
expected_failure_amount += 1
else:
failure_amount += 1
error_title_list.append(test_name)
detail_element = E.DIV()
detail_element.append(E.DIV(E.P(test_name), E.BR, test_table))
detail += etree.tostring(detail_element)
tr_count += 1
sucess_amount = tr_count - 1 - failure_amount - expected_failure_amount
if detail:
detail = IMAGE_RE.sub('', detail)
detail = '''<html>
<head>
<style type="text/css">tr.status_failed { background-color:red };</style>
......@@ -366,7 +343,6 @@ class FunctionalTestRunner:
class ERP5TypeFunctionalTestCase(ERP5TypeTestCase):
run_only = ""
foreground = 0
use_phanthom = False
remote_code_url_list = None
def getTitle(self):
......@@ -374,26 +350,27 @@ class ERP5TypeFunctionalTestCase(ERP5TypeTestCase):
def afterSetUp(self):
super(ERP5TypeFunctionalTestCase, self).afterSetUp()
self.setTimeZoneToUTC()
# create browser_id_manager
if not "browser_id_manager" in self.portal.objectIds():
self.portal.manage_addProduct['Sessions'].constructBrowserIdManager()
self.commit()
self.setSystemPreference()
self.portal.portal_tests.TestTool_cleanUpTestResults()
# non-recursive results clean of portal_tests/ or portal_tests/``run_only``
self.portal.portal_tests.TestTool_cleanUpTestResults(self.run_only or None)
self.tic()
host, port = self.startZServer()
self.runner = FunctionalTestRunner(host, port,
self.portal, self.run_only, self.use_phanthom)
self.portal, self.run_only)
def setSystemPreference(self):
from Products.ERP5Type.tests.ERP5TypeTestCase import _getConversionServerDict
conversion_dict = _getConversionServerDict()
self.portal.Zuite_setPreference(
working_copy_list=bt5_dir_list,
conversion_server_hostname=conversion_dict['hostname'],
conversion_server_port=conversion_dict['port']
)
# XXX Memcached is missing
# XXX Persistent cache setup is missing
def _verboseErrorLog(self, size=10):
for entry in self.portal.error_log.getLogEntries()[:size]:
......@@ -402,38 +379,49 @@ class ERP5TypeFunctionalTestCase(ERP5TypeTestCase):
print "TRACEBACK :"
print entry["tb_text"]
def _hasActivityFailure(self):
""" Return True if the portal has any Activity Failure
"""
for m in self.portal.portal_activities.getMessageList():
if m.processing_node < -1:
return True
return False
def testFunctionalTestRunner(self):
# first of all, abort to get rid of the mysql participation inn this
# transaction
self.portal._p_jar.sync()
# Check the zuite page templates can be rendered, because selenium test
# runner does not report error in case there are errors in the page
# template.
tests_tool = self.portal.portal_tests
if self.remote_code_url_list:
# This does not really run tests. It initializes a zuite
# and redirect to a url to would actually run them.
tests_tool.Zuite_runSeleniumTest(self.remote_code_url_list, self.run_only)
self.commit()
if self.remote_code_url_list is not None:
self.runner.remote_code_url_list = self.remote_code_url_list
for page_template_path, page_template in tests_tool.ZopeFind(
tests_tool[self.run_only] if self.run_only else tests_tool,
obj_metatypes=('Page Template',), search_sub=1):
try:
page_template.pt_render()
except Exception:
exc_type, exc_value, exc_traceback = sys.exc_info()
self.fail('Rendering of %s failed with error:\n%s' % (
page_template_path,
''.join(format_exception(
exc_type,
exc_value,
exc_traceback,
as_html=False))))
# abort to get rid of the mysql participation in this transaction
self.portal._p_jar.sync()
debug = self.foreground or os.environ.get("erp5_debug_mode")
error = None
error = []
try:
self.runner.test(debug=debug)
iframe = self.runner.test(debug=debug)
except TimeoutError, e:
error = repr(e)
self._verboseErrorLog(20)
else:
# In case of failure, verbose the error_log entries in order to collect
# appropriated information to debug the system.
if self._hasActivityFailure():
error = 'Failed activities exist.'
self._verboseErrorLog(20)
error.append(repr(e))
try:
self.tic()
except RuntimeError as e:
error.append(str(e))
detail, success, failure, \
expected_failure, error_title_list = self.runner.processResult()
expected_failure, error_title_list = self.runner.processResult(iframe)
self.logMessage("-" * 79)
total = success + failure + expected_failure
......@@ -447,8 +435,11 @@ class ERP5TypeFunctionalTestCase(ERP5TypeTestCase):
self.logMessage("-" * 79)
self.logMessage(detail)
self.logMessage("-" * 79)
self.assertEqual([], error_title_list, '\n'.join(error_title_list))
self.assertEqual(None, error, error)
if failure or error:
self._verboseErrorLog(20)
error += error_title_list
if error:
self.fail('\n'.join(error))
# monkey patch HTTPResponse._unauthorized so that we will not have HTTP
# authentication dialog in case of Unauthorized exception to prevent
......
product/ERP5Type/tests/ERP5TypeTestCase.py
View file @ 56250007
......@@ -281,6 +281,20 @@ class ERP5TypeTestCaseMixin(ProcessingNodeTestCase, PortalTestCase):
assert date_time is None or isinstance(date_time, DateTime)
_pinned_date_time = date_time
def setTimeZoneToUTC(self):
"""
Backported from master branch (see ERP5TypeFunctionalTestCase)
"""
# Make sure tests runs with UTC timezone. Some tests are checking values
# based on now, and this could give unexpected results:
# DateTime("2016/10/31") - DateTime("2016/10/30") = 1.0416666666666667 if
# you are running on a timezone like Europe/Paris, while it return 1.0 for
# UTC
os.environ['TZ'] = "UTC"
time.tzset()
DateTime._isDST = False
DateTime._localzone = DateTime._localzone0 = DateTime._localzone1 = "UTC"
def unpinDateTime(self):
self.pinDateTime(None)
......
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