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"""This plugin provides test results in the standard XUnit XML format.
It's designed for the `Jenkins`_ (previously Hudson) continuous build
system, but will probably work for anything else that understands an
XUnit-formatted XML representation of test results.
Add this shell command to your builder ::
nosetests --with-xunit
And by default a file named nosetests.xml will be written to the
working directory.
In a Jenkins builder, tick the box named "Publish JUnit test result report"
under the Post-build Actions and enter this value for Test report XMLs::
**/nosetests.xml
If you need to change the name or location of the file, you can set the
``--xunit-file`` option.
If you need to change the name of the test suite, you can set the
``--xunit-testsuite-name`` option.
If you need to prefix the name of the tested classes, you can set the
``--xunit-prefix-with-testsuite-name`` option.
This can be used in a matrixed build to distinguish between failures
in different environments.
The testsuite name is used as a prefix.
Here is an abbreviated version of what an XML test report might look like::
<?xml version="1.0" encoding="UTF-8"?>
<testsuite name="nosetests" tests="1" errors="1" failures="0" skip="0">
<testcase classname="path_to_test_suite.TestSomething"
name="test_it" time="0">
<error type="exceptions.TypeError" message="oops, wrong type">
Traceback (most recent call last):
...
TypeError: oops, wrong type
</error>
</testcase>
</testsuite>
.. _Jenkins: http://jenkins-ci.org/
"""
import codecs
import doctest
import os
import sys
import traceback
import re
import inspect
from StringIO import StringIO
from time import time
from xml.sax import saxutils
from nose.plugins.base import Plugin
from nose.exc import SkipTest
from nose.pyversion import force_unicode, format_exception
# Invalid XML characters, control characters 0-31 sans \t, \n and \r
CONTROL_CHARACTERS = re.compile(r"[\000-\010\013\014\016-\037]")
TEST_ID = re.compile(r'^(.*?)(\(.*\))$')
def xml_safe(value):
"""Replaces invalid XML characters with '?'."""
return CONTROL_CHARACTERS.sub('?', value)
def escape_cdata(cdata):
"""Escape a string for an XML CDATA section."""
return xml_safe(cdata).replace(']]>', ']]>]]&gt;<![CDATA[')
def id_split(idval):
m = TEST_ID.match(idval)
if m:
name, fargs = m.groups()
head, tail = name.rsplit(".", 1)
return [head, tail+fargs]
else:
return idval.rsplit(".", 1)
def nice_classname(obj):
"""Returns a nice name for class object or class instance.
>>> nice_classname(Exception()) # doctest: +ELLIPSIS
'...Exception'
>>> nice_classname(Exception) # doctest: +ELLIPSIS
'...Exception'
"""
if inspect.isclass(obj):
cls_name = obj.__name__
else:
cls_name = obj.__class__.__name__
mod = inspect.getmodule(obj)
if mod:
name = mod.__name__
# jython
if name.startswith('org.python.core.'):
name = name[len('org.python.core.'):]
return "%s.%s" % (name, cls_name)
else:
return cls_name
def exc_message(exc_info):
"""Return the exception's message."""
exc = exc_info[1]
if exc is None:
# str exception
result = exc_info[0]
else:
try:
result = str(exc)
except UnicodeEncodeError:
try:
result = unicode(exc)
except UnicodeError:
# Fallback to args as neither str nor
# unicode(Exception(u'\xe6')) work in Python < 2.6
result = exc.args[0]
result = force_unicode(result, 'UTF-8')
return xml_safe(result)
class Tee(object):
def __init__(self, encoding, *args):
self.encoding = encoding
self._streams = args
self.errors = None
def write(self, data):
data = force_unicode(data, self.encoding)
for s in self._streams:
s.write(data)
def writelines(self, lines):
for line in lines:
self.write(line)
def flush(self):
for s in self._streams:
s.flush()
def isatty(self):
return False
class Xunit(Plugin):
"""This plugin provides test results in the standard XUnit XML format."""
name = 'xunit'
score = 1500
encoding = 'UTF-8'
error_report_file = None
def __init__(self):
super(Xunit, self).__init__()
self._capture_stack = []
self._currentStdout = None
self._currentStderr = None
def _timeTaken(self):
if hasattr(self, '_timer'):
taken = time() - self._timer
else:
# test died before it ran (probably error in setup())
# or success/failure added before test started probably
# due to custom TestResult munging
taken = 0.0
return taken
def _quoteattr(self, attr):
"""Escape an XML attribute. Value can be unicode."""
attr = xml_safe(attr)
return saxutils.quoteattr(attr)
def _getCls(self, id):
if self.xunit_prefix_class:
return self._quoteattr('%s.%s' % (self.xunit_testsuite_name, id_split(id)[0]))
else:
return self._quoteattr(id_split(id)[0])
def options(self, parser, env):
"""Sets additional command line options."""
Plugin.options(self, parser, env)
parser.add_option(
'--xunit-file', action='store',
dest='xunit_file', metavar="FILE",
default=env.get('NOSE_XUNIT_FILE', 'nosetests.xml'),
help=("Path to xml file to store the xunit report in. "
"Default is nosetests.xml in the working directory "
"[NOSE_XUNIT_FILE]"))
parser.add_option(
'--xunit-testsuite-name', action='store',
dest='xunit_testsuite_name', metavar="PACKAGE",
default=env.get('NOSE_XUNIT_TESTSUITE_NAME', 'nosetests'),
help=("Name of the testsuite in the xunit xml, generated by plugin. "
"Default test suite name is nosetests."))
parser.add_option(
'--xunit-prefix-with-testsuite-name', action='store_true',
dest='xunit_prefix_class',
default=bool(env.get('NOSE_XUNIT_PREFIX_WITH_TESTSUITE_NAME', False)),
help=("Whether to prefix the class name under test with testsuite name. "
"Defaults to false."))
def configure(self, options, config):
"""Configures the xunit plugin."""
Plugin.configure(self, options, config)
self.config = config
if self.enabled:
self.stats = {'errors': 0,
'failures': 0,
'passes': 0,
'skipped': 0
}
self.errorlist = []
self.error_report_file_name = os.path.realpath(options.xunit_file)
self.xunit_testsuite_name = options.xunit_testsuite_name
self.xunit_prefix_class = options.xunit_prefix_class
def report(self, stream):
"""Writes an Xunit-formatted XML file
The file includes a report of test errors and failures.
"""
self.error_report_file = codecs.open(self.error_report_file_name, 'w',
self.encoding, 'replace')
self.stats['encoding'] = self.encoding
self.stats['testsuite_name'] = self.xunit_testsuite_name
self.stats['total'] = (self.stats['errors'] + self.stats['failures']
+ self.stats['passes'] + self.stats['skipped'])
self.error_report_file.write(
u'<?xml version="1.0" encoding="%(encoding)s"?>'
u'<testsuite name="%(testsuite_name)s" tests="%(total)d" '
u'errors="%(errors)d" failures="%(failures)d" '
u'skip="%(skipped)d">' % self.stats)
self.error_report_file.write(u''.join([force_unicode(e, self.encoding)
for e in self.errorlist]))
self.error_report_file.write(u'</testsuite>')
self.error_report_file.close()
if self.config.verbosity > 1:
stream.writeln("-" * 70)
stream.writeln("XML: %s" % self.error_report_file.name)
def _startCapture(self):
self._capture_stack.append((sys.stdout, sys.stderr))
self._currentStdout = StringIO()
self._currentStderr = StringIO()
sys.stdout = Tee(self.encoding, self._currentStdout, sys.stdout)
sys.stderr = Tee(self.encoding, self._currentStderr, sys.stderr)
def startContext(self, context):
self._startCapture()
def stopContext(self, context):
self._endCapture()
def beforeTest(self, test):
"""Initializes a timer before starting a test."""
self._timer = time()
self._startCapture()
def _endCapture(self):
if self._capture_stack:
sys.stdout, sys.stderr = self._capture_stack.pop()
def afterTest(self, test):
self._endCapture()
self._currentStdout = None
self._currentStderr = None
def finalize(self, test):
while self._capture_stack:
self._endCapture()
def _getCapturedStdout(self):
if self._currentStdout:
value = self._currentStdout.getvalue()
if value:
return '<system-out><![CDATA[%s]]></system-out>' % escape_cdata(
value)
return ''
def _getCapturedStderr(self):
if self._currentStderr:
value = self._currentStderr.getvalue()
if value:
return '<system-err><![CDATA[%s]]></system-err>' % escape_cdata(
value)
return ''
def addError(self, test, err, capt=None):
"""Add error output to Xunit report.
"""
taken = self._timeTaken()
if issubclass(err[0], SkipTest):
type = 'skipped'
self.stats['skipped'] += 1
else:
type = 'error'
self.stats['errors'] += 1
tb = format_exception(err, self.encoding)
id = test.id()
self.errorlist.append(
u'<testcase classname=%(cls)s name=%(name)s time="%(taken).3f">'
u'<%(type)s type=%(errtype)s message=%(message)s><![CDATA[%(tb)s]]>'
u'</%(type)s>%(systemout)s%(systemerr)s</testcase>' %
{'cls': self._getCls(id),
'name': self._quoteattr(id_split(id)[-1]),
'taken': taken,
'type': type,
'errtype': self._quoteattr(nice_classname(err[0])),
'message': self._quoteattr(exc_message(err)),
'tb': escape_cdata(tb),
'systemout': self._getCapturedStdout(),
'systemerr': self._getCapturedStderr(),
})
def addFailure(self, test, err, capt=None, tb_info=None):
"""Add failure output to Xunit report.
"""
taken = self._timeTaken()
tb = format_exception(err, self.encoding)
self.stats['failures'] += 1
id = test.id()
self.errorlist.append(
u'<testcase classname=%(cls)s name=%(name)s time="%(taken).3f">'
u'<failure type=%(errtype)s message=%(message)s><![CDATA[%(tb)s]]>'
u'</failure>%(systemout)s%(systemerr)s</testcase>' %
{'cls': self._getCls(id),
'name': self._quoteattr(id_split(id)[-1]),
'taken': taken,
'errtype': self._quoteattr(nice_classname(err[0])),
'message': self._quoteattr(exc_message(err)),
'tb': escape_cdata(tb),
'systemout': self._getCapturedStdout(),
'systemerr': self._getCapturedStderr(),
})
def addSuccess(self, test, capt=None):
"""Add success output to Xunit report.
"""
taken = self._timeTaken()
self.stats['passes'] += 1
id = test.id()
self.errorlist.append(
'<testcase classname=%(cls)s name=%(name)s '
'time="%(taken).3f">%(systemout)s%(systemerr)s</testcase>' %
{'cls': self._getCls(id),
'name': self._quoteattr(id_split(id)[-1]),
'taken': taken,
'systemout': self._getCapturedStdout(),
'systemerr': self._getCapturedStderr(),
})
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