96 lines
3.8 KiB
Python
96 lines
3.8 KiB
Python
#
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# Copyright (c) 2011-2013 Canonical Ltd.
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#
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# This file is part of: SST (selenium-simple-test)
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# https://launchpad.net/selenium-simple-test
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import logging
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import os
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import platform
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import shutil
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import subprocess
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LOG = logging.getLogger(__name__)
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try:
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# NOTE: Several distribution can't ship selenium due to its
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# non-free license. So they have to patch it out of test-requirements.txt
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# Avoid import failure and force not running selenium tests.
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# The entire file is encapsulated in the try block because the classes
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# inherit from the firefox class contained in selenium.webdriver, and
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# python will throw a NameError if the import is skipped.
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from selenium.common import exceptions as selenium_exceptions
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from selenium.webdriver import firefox
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class FirefoxBinary(firefox.firefox_binary.FirefoxBinary):
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"""Workarounds selenium firefox issues.
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There is race condition in the way firefox is spawned. The exact cause
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hasn't been properly diagnosed yet but it's around:
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- getting a free port from the OS with selenium.webdriver.common.utils
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free_port(),
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- release the port immediately but record it in ff prefs so that ff can
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listen on that port for the internal http server.
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It has been observed that this leads to hanging processes for 'firefox
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-silent'.
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"""
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def _start_from_profile_path(self, path):
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self._firefox_env["XRE_PROFILE_PATH"] = path
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if platform.system().lower() == 'linux':
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self._modify_link_library_path()
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command = [self._start_cmd, "-silent"]
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if self.command_line is not None:
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for cli in self.command_line:
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command.append(cli)
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# The following exists upstream and is known to create hanging firefoxes,
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# leading to zombies.
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# subprocess.Popen(command, stdout=self._log_file,
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# stderr=subprocess.STDOUT,
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# env=self._firefox_env).communicate()
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command[1] = '-foreground'
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self.process = subprocess.Popen(
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command, stdout=self._log_file, stderr=subprocess.STDOUT,
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env=self._firefox_env)
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class WebDriver(firefox.webdriver.WebDriver):
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"""Workarounds selenium firefox issues."""
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def __init__(self, firefox_profile=None, firefox_binary=None,
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timeout=30, capabilities=None, proxy=None):
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try:
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super(WebDriver, self).__init__(
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firefox_profile, FirefoxBinary(), timeout, capabilities,
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proxy)
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except selenium_exceptions.WebDriverException:
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# If we can't start, cleanup profile
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shutil.rmtree(self.profile.path)
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if self.profile.tempfolder is not None:
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shutil.rmtree(self.profile.tempfolder)
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raise
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except ImportError as e:
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# NOTE(saschpe): Several distribution can't ship selenium due to its
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# non-free license. So they have to patch it out of test-requirements.txt
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# Avoid import failure and force not running selenium tests.
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LOG.warning("{0}, force WITH_SELENIUM=False".format(str(e)))
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os.environ['WITH_SELENIUM'] = ''
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