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278 lines
9.9 KiB
Python
278 lines
9.9 KiB
Python
# Authors:
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# Petr Viktorin <pviktori@redhat.com>
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#
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# Copyright (C) 2013 Red Hat
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# see file 'COPYING' for use and warranty information
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""A Nose plugin that integrates with BeakerLib"""
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import os
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import sys
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import subprocess
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import traceback
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import logging
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import tempfile
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import re
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import nose
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from nose.plugins import Plugin
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from ipapython import ipautil
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from ipapython.ipa_log_manager import log_mgr
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LINK_RE = re.compile(r'https?://[^\s]+')
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class BeakerLibLogHandler(logging.Handler):
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def __init__(self, beakerlib_command):
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super(BeakerLibLogHandler, self).__init__()
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self.beakerlib_command = beakerlib_command
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def emit(self, record):
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command = {
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'DEBUG': 'rlLogDebug',
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'INFO': 'rlLogInfo',
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'WARNING': 'rlLogWarning',
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'ERROR': 'rlLogError',
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'CRITICAL': 'rlLogFatal',
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}.get(record.levelname, 'rlLog')
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self.beakerlib_command([command, self.format(record)])
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class BeakerLibProcess(object):
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def __init__(self, env=os.environ):
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self.log = log_mgr.get_logger(self)
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if 'BEAKERLIB' not in env:
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raise RuntimeError('$BEAKERLIB not set, cannot use BeakerLib')
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self.env = env
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# Set up the Bash process
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self.bash = subprocess.Popen(['bash'],
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stdin=subprocess.PIPE,
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stdout=open('/dev/null', 'w'),
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stderr=open('/dev/null', 'w'))
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source_path = os.path.join(self.env['BEAKERLIB'], 'beakerlib.sh')
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self.run_beakerlib_command(['.', source_path])
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# _in_class_setup is set when we are in setup_class, so logs can be
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# collected just before the first test starts
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self._in_class_setup = False
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# Redirect logging to our own handlers
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self.setup_log_handler(BeakerLibLogHandler(self.run_beakerlib_command))
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def setup_log_handler(self, handler):
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log_mgr.configure(
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{
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'default_level': 'DEBUG',
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'handlers': [{'log_handler': handler,
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'format': '[%(name)s] %(message)s',
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'level': 'info'}]},
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configure_state='beakerlib_plugin')
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def run_beakerlib_command(self, cmd):
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"""Given a command as a Popen-style list, run it in the Bash process"""
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if not self.bash:
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return
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for word in cmd:
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self.bash.stdin.write(ipautil.shell_quote(word))
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self.bash.stdin.write(' ')
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self.bash.stdin.write('\n')
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self.bash.stdin.flush()
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assert self.bash.returncode is None, "BeakerLib Bash process exited"
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def log_links(self, docstring):
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for match in LINK_RE.finditer(docstring or ''):
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self.log.info('Link: %s', match.group())
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def end(self):
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"""End the Bash process"""
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self.run_beakerlib_command(['exit'])
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bash = self.bash
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self.bash = None
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bash.communicate()
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def collect_logs(self, logs_to_collect):
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"""Collect specified logs"""
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for host, logs in logs_to_collect.items():
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self.log.info('Collecting logs from: %s', host.hostname)
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# Tar up the logs on the remote server
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cmd = host.run_command(['tar', 'cJv'] + logs, log_stdout=False,
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raiseonerr=False)
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if cmd.returncode:
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self.run_beakerlib_command(
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['rlFail', 'Could not collect all requested logs'])
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# Copy and unpack on the local side
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topdirname = tempfile.mkdtemp()
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dirname = os.path.join(topdirname, host.hostname)
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os.mkdir(dirname)
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tarname = os.path.join(dirname, 'logs.tar.xz')
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with open(tarname, 'w') as f:
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f.write(cmd.stdout_text)
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ipautil.run(['tar', 'xJvf', 'logs.tar.xz'], cwd=dirname)
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os.unlink(tarname)
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# Use BeakerLib's rlFileSubmit on the indifidual files
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# The resulting submitted filename will be
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# $HOSTNAME-$FILENAME (with '/' replaced by '-')
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self.run_beakerlib_command(['pushd', topdirname])
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for dirpath, dirnames, filenames in os.walk(topdirname):
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for filename in filenames:
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fullname = os.path.relpath(
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os.path.join(dirpath, filename), topdirname)
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self.log.debug('Submitting file: %s', fullname)
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self.run_beakerlib_command(['rlFileSubmit', fullname])
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self.run_beakerlib_command(['popd'])
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# The BeakerLib process runs asynchronously, let it clean up
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# after it's done with the directory
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self.run_beakerlib_command(['rm', '-rvf', topdirname])
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logs_to_collect.clear()
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def log_exception(self, err=None):
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"""Log an exception
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err is a 3-tuple as returned from sys.exc_info(); if not given,
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sys.exc_info() is used.
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"""
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if err is None:
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err = sys.exc_info()
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message = ''.join(traceback.format_exception(*err)).rstrip()
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self.run_beakerlib_command(['rlLogError', message])
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class BeakerLibPlugin(Plugin):
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"""A Nose plugin that integrates with BeakerLib"""
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# Since BeakerLib is a Bash library, we need to run it in Bash.
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# The plugin maintains a Bash process and feeds it with commands
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# on events like test start/end, logging, etc.
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# See nose.plugins.base.IPluginInterface for Nose plugin interface docs
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name = 'beakerlib'
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def __init__(self):
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super(BeakerLibPlugin, self).__init__()
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self.log = log_mgr.get_logger(self)
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self._in_class_setup = False
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def options(self, parser, env=os.environ):
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super(BeakerLibPlugin, self).options(parser, env=env)
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self.env = env
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self.parser = parser
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def configure(self, options, conf):
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super(BeakerLibPlugin, self).configure(options, conf)
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if not self.enabled:
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return
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if 'BEAKERLIB' not in self.env:
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self.parser.error(
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'$BEAKERLIB not set, cannot use --with-beakerlib')
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self.process = BeakerLibProcess(env=self.env)
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def run_beakerlib_command(self, cmd):
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"""Given a command as a Popen-style list, run it in the Bash process"""
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self.process.run_beakerlib_command(cmd)
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def report(self, stream):
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self.process.end()
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def log_exception(self, err):
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self.process.log_exception(err)
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def log_links(self, docstring):
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self.process.log_links(docstring)
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def startContext(self, context):
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"""Start a test context (module, class)
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For test classes, this starts a BeakerLib phase
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"""
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if not isinstance(context, type):
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return
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try:
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docstring = context.__doc__
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caption = docstring.strip().partition('\n')[0]
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except AttributeError:
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docstring = ''
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caption = 'Nose class (no docstring)'
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phase_name = "%s-%s: %s" % (context.__module__.replace('.', '-'),
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context.__name__, caption)
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self.run_beakerlib_command(['rlPhaseStart', 'FAIL', phase_name])
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self._in_class_setup = True
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self.log_links(docstring)
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def stopContext(self, context):
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"""End a test context"""
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if not isinstance(context, type):
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return
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self.collect_logs(context)
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self.run_beakerlib_command(['rlPhaseEnd'])
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def startTest(self, test):
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"""Start a test phase"""
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if self._in_class_setup:
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self.collect_logs(test.context)
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self.log.info('Running test: %s', test.id())
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caption = test.shortDescription()
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if not caption:
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caption = 'Nose method (no docstring)'
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phase_name = "%s: %s" % (test.id().replace('.', '-'), caption)
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self.run_beakerlib_command(['rlPhaseStart', 'FAIL', phase_name])
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while hasattr(test, 'test'):
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# Un-wrap Nose test cases to get at the actual test method
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test = test.test
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self.log_links(getattr(test, '__doc__', ''))
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def stopTest(self, test):
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"""End a test phase"""
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self.collect_logs(test.context)
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self.run_beakerlib_command(['rlPhaseEnd'])
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def addSuccess(self, test):
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self.run_beakerlib_command(['rlPass', 'Test succeeded'])
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def addError(self, test, err):
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if issubclass(err[0], nose.SkipTest):
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# Log skipped test.
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# Unfortunately we only get to see this if the built-in skip
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# plugin is disabled (--no-skip)
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self.run_beakerlib_command(['rlPass', 'Test skipped: %s' % err[1]])
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else:
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self.log_exception(err)
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self.run_beakerlib_command(
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['rlFail', 'Test failed: unhandled exception'])
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self.collect_logs(test.context)
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def addFailure(self, test, err):
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self.log_exception(err)
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self.run_beakerlib_command(['rlFail', 'Test failed'])
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def collect_logs(self, test):
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"""Collect logs specified in test's logs_to_collect attribute
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"""
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try:
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logs_to_collect = test.logs_to_collect
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except AttributeError:
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self.log.debug('No logs to collect')
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else:
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self.process.collect_logs(logs_to_collect)
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