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import os
import sys
import time
import traceback
import six
import re
from os import path
from six.moves import StringIO
from .unittest import TestResult, _TextTestResult, failfast
# Matches invalid XML1.0 unicode characters, like control characters:
# http://www.w3.org/TR/2006/REC-xml-20060816/#charsets
# http://stackoverflow.com/questions/1707890/fast-way-to-filter-illegal-xml-unicode-chars-in-python
_illegal_unichrs = [
(0x00, 0x08), (0x0B, 0x0C), (0x0E, 0x1F),
(0x7F, 0x84), (0x86, 0x9F),
(0xFDD0, 0xFDDF), (0xFFFE, 0xFFFF),
]
if sys.maxunicode >= 0x10000: # not narrow build
_illegal_unichrs.extend([
(0x1FFFE, 0x1FFFF), (0x2FFFE, 0x2FFFF),
(0x3FFFE, 0x3FFFF), (0x4FFFE, 0x4FFFF),
(0x5FFFE, 0x5FFFF), (0x6FFFE, 0x6FFFF),
(0x7FFFE, 0x7FFFF), (0x8FFFE, 0x8FFFF),
(0x9FFFE, 0x9FFFF), (0xAFFFE, 0xAFFFF),
(0xBFFFE, 0xBFFFF), (0xCFFFE, 0xCFFFF),
(0xDFFFE, 0xDFFFF), (0xEFFFE, 0xEFFFF),
(0xFFFFE, 0xFFFFF), (0x10FFFE, 0x10FFFF),
])
_illegal_ranges = [
"%s-%s" % (six.unichr(low), six.unichr(high))
for (low, high) in _illegal_unichrs
]
INVALID_XML_1_0_UNICODE_RE = re.compile(u'[%s]' % u''.join(_illegal_ranges))
STDOUT_LINE = '\nStdout:\n%s'
STDERR_LINE = '\nStderr:\n%s'
def xml_safe_unicode(base, encoding='utf-8'):
"""Return a unicode string containing only valid XML characters.
encoding - if base is a byte string it is first decoded to unicode
using this encoding.
"""
if isinstance(base, six.binary_type):
base = base.decode(encoding)
return INVALID_XML_1_0_UNICODE_RE.sub('', base)
def to_unicode(data):
"""Returns unicode in Python2 and str in Python3"""
if six.PY3:
return six.text_type(data)
try:
# Try utf8
return six.text_type(data)
except UnicodeDecodeError:
return repr(data).decode('utf8', 'replace')
def safe_unicode(data, encoding=None):
return xml_safe_unicode(to_unicode(data), encoding)
def testcase_name(test_method):
testcase = type(test_method)
# Ignore module name if it is '__main__'
module = testcase.__module__ + '.'
if module == '__main__.':
module = ''
result = module + testcase.__name__
return result
class _TestInfo(object):
"""
This class keeps useful information about the execution of a
test method.
"""
# Possible test outcomes
(SUCCESS, FAILURE, ERROR, SKIP) = range(4)
def __init__(self, test_result, test_method, outcome=SUCCESS, err=None, subTest=None):
self.test_result = test_result
self.outcome = outcome
self.elapsed_time = 0
self.err = err
self.stdout = test_result._stdout_data
self.stderr = test_result._stderr_data
self.test_description = self.test_result.getDescription(test_method)
self.test_exception_info = (
'' if outcome in (self.SUCCESS, self.SKIP)
else self.test_result._exc_info_to_string(
self.err, test_method)
)
self.test_name = testcase_name(test_method)
self.test_id = test_method.id()
if subTest:
self.test_id = subTest.id()
def id(self):
return self.test_id
def test_finished(self):
"""Save info that can only be calculated once a test has run.
"""
self.elapsed_time = \
self.test_result.stop_time - self.test_result.start_time
def get_description(self):
"""
Return a text representation of the test method.
"""
return self.test_description
def get_error_info(self):
"""
Return a text representation of an exception thrown by a test
method.
"""
return self.test_exception_info
class _XMLTestResult(_TextTestResult):
"""
A test result class that can express test results in a XML report.
Used by XMLTestRunner.
"""
def __init__(self, stream=sys.stderr, descriptions=1, verbosity=1,
elapsed_times=True, properties=None, infoclass=None):
_TextTestResult.__init__(self, stream, descriptions, verbosity)
self.buffer = True # we are capturing test output
self._stdout_data = None
self._stderr_data = None
self.successes = []
self.callback = None
self.elapsed_times = elapsed_times
self.properties = properties # junit testsuite properties
if infoclass is None:
self.infoclass = _TestInfo
else:
self.infoclass = infoclass
def _prepare_callback(self, test_info, target_list, verbose_str,
short_str):
"""
Appends a `infoclass` to the given target list and sets a callback
method to be called by stopTest method.
"""
target_list.append(test_info)
def callback():
"""Prints the test method outcome to the stream, as well as
the elapsed time.
"""
test_info.test_finished()
# Ignore the elapsed times for a more reliable unit testing
if not self.elapsed_times:
self.start_time = self.stop_time = 0
if self.showAll:
self.stream.writeln(
'%s (%.3fs)' % (verbose_str, test_info.elapsed_time)
)
elif self.dots:
self.stream.write(short_str)
self.callback = callback
def startTest(self, test):
"""
Called before execute each test method.
"""
self.start_time = time.time()
TestResult.startTest(self, test)
if self.showAll:
self.stream.write(' ' + self.getDescription(test))
self.stream.write(" ... ")
def _save_output_data(self):
# Only try to get sys.stdout and sys.sterr as they not be
# StringIO yet, e.g. when test fails during __call__
try:
self._stdout_data = sys.stdout.getvalue()
self._stderr_data = sys.stderr.getvalue()
except AttributeError:
pass
def stopTest(self, test):
"""
Called after execute each test method.
"""
self._save_output_data()
# self._stdout_data = sys.stdout.getvalue()
# self._stderr_data = sys.stderr.getvalue()
_TextTestResult.stopTest(self, test)
self.stop_time = time.time()
if self.callback and callable(self.callback):
self.callback()
self.callback = None
def addSuccess(self, test):
"""
Called when a test executes successfully.
"""
self._save_output_data()
self._prepare_callback(
self.infoclass(self, test), self.successes, 'OK', '.'
)
@failfast
def addFailure(self, test, err):
"""
Called when a test method fails.
"""
self._save_output_data()
testinfo = self.infoclass(
self, test, self.infoclass.FAILURE, err)
self.failures.append((
testinfo,
self._exc_info_to_string(err, test)
))
self._prepare_callback(testinfo, [], 'FAIL', 'F')
@failfast
def addError(self, test, err):
"""
Called when a test method raises an error.
"""
self._save_output_data()
testinfo = self.infoclass(
self, test, self.infoclass.ERROR, err)
self.errors.append((
testinfo,
self._exc_info_to_string(err, test)
))
self._prepare_callback(testinfo, [], 'ERROR', 'E')
def addSubTest(self, testcase, test, err):
"""
Called when a subTest method raises an error.
"""
if err is not None:
self._save_output_data()
testinfo = self.infoclass(
self, testcase, self.infoclass.ERROR, err, subTest=test)
self.errors.append((
testinfo,
self._exc_info_to_string(err, testcase)
))
self._prepare_callback(testinfo, [], 'ERROR', 'E')
def addSkip(self, test, reason):
"""
Called when a test method was skipped.
"""
self._save_output_data()
testinfo = self.infoclass(
self, test, self.infoclass.SKIP, reason)
self.skipped.append((testinfo, reason))
self._prepare_callback(testinfo, [], 'SKIP', 'S')
def printErrorList(self, flavour, errors):
"""
Writes information about the FAIL or ERROR to the stream.
"""
for test_info, dummy in errors:
self.stream.writeln(self.separator1)
self.stream.writeln(
'%s [%.3fs]: %s' % (flavour, test_info.elapsed_time,
test_info.get_description())
)
self.stream.writeln(self.separator2)
self.stream.writeln('%s' % test_info.get_error_info())
def _get_info_by_testcase(self):
"""
Organizes test results by TestCase module. This information is
used during the report generation, where a XML report will be created
for each TestCase.
"""
tests_by_testcase = {}
for tests in (self.successes, self.failures, self.errors,
self.skipped):
for test_info in tests:
if isinstance(test_info, tuple):
# This is a skipped, error or a failure test case
test_info = test_info[0]
testcase_name = test_info.test_name
if testcase_name not in tests_by_testcase:
tests_by_testcase[testcase_name] = []
tests_by_testcase[testcase_name].append(test_info)
return tests_by_testcase
def _report_testsuite_properties(xml_testsuite, xml_document, properties):
if properties:
xml_properties = xml_document.createElement('properties')
xml_testsuite.appendChild(xml_properties)
for key, value in properties.items():
prop = xml_document.createElement('property')
prop.setAttribute('name', str(key))
prop.setAttribute('value', str(value))
xml_properties.appendChild(prop)
_report_testsuite_properties = staticmethod(_report_testsuite_properties)
def _report_testsuite(suite_name, tests, xml_document, parentElement,
properties):
"""
Appends the testsuite section to the XML document.
"""
testsuite = xml_document.createElement('testsuite')
parentElement.appendChild(testsuite)
testsuite.setAttribute('name', suite_name)
testsuite.setAttribute('tests', str(len(tests)))
testsuite.setAttribute(
'time', '%.3f' % sum(map(lambda e: e.elapsed_time, tests))
)
failures = filter(lambda e: e.outcome == e.FAILURE, tests)
testsuite.setAttribute('failures', str(len(list(failures))))
errors = filter(lambda e: e.outcome == e.ERROR, tests)
testsuite.setAttribute('errors', str(len(list(errors))))
skips = filter(lambda e: e.outcome == _TestInfo.SKIP, tests)
testsuite.setAttribute('skipped', str(len(list(skips))))
_XMLTestResult._report_testsuite_properties(
testsuite, xml_document, properties)
for test in tests:
_XMLTestResult._report_testcase(test, testsuite, xml_document)
systemout = xml_document.createElement('system-out')
testsuite.appendChild(systemout)
stdout = StringIO()
for test in tests:
# Merge the stdout from the tests in a class
if test.stdout is not None:
stdout.write(test.stdout)
_XMLTestResult._createCDATAsections(
xml_document, systemout, stdout.getvalue())
systemerr = xml_document.createElement('system-err')
testsuite.appendChild(systemerr)
stderr = StringIO()
for test in tests:
# Merge the stderr from the tests in a class
if test.stderr is not None:
stderr.write(test.stderr)
_XMLTestResult._createCDATAsections(
xml_document, systemerr, stderr.getvalue())
return testsuite
_report_testsuite = staticmethod(_report_testsuite)
def _test_method_name(test_id):
"""
Returns the test method name.
"""
return test_id.split('.')[-1]
_test_method_name = staticmethod(_test_method_name)
def _createCDATAsections(xmldoc, node, text):
text = safe_unicode(text)
pos = text.find(']]>')
while pos >= 0:
tmp = text[0:pos+2]
cdata = xmldoc.createCDATASection(tmp)
node.appendChild(cdata)
text = text[pos+2:]
pos = text.find(']]>')
cdata = xmldoc.createCDATASection(text)
node.appendChild(cdata)
_createCDATAsections = staticmethod(_createCDATAsections)
def _report_testcase(test_result, xml_testsuite, xml_document):
"""
Appends a testcase section to the XML document.
"""
testcase = xml_document.createElement('testcase')
xml_testsuite.appendChild(testcase)
class_name = re.sub(r'^__main__.', '', test_result.id())
class_name = class_name.rpartition('.')[0]
testcase.setAttribute('classname', class_name)
testcase.setAttribute(
'name', _XMLTestResult._test_method_name(test_result.test_id)
)
testcase.setAttribute('time', '%.3f' % test_result.elapsed_time)
if (test_result.outcome != test_result.SUCCESS):
elem_name = ('failure', 'error', 'skipped')[test_result.outcome-1]
failure = xml_document.createElement(elem_name)
testcase.appendChild(failure)
if test_result.outcome != test_result.SKIP:
failure.setAttribute(
'type',
safe_unicode(test_result.err[0].__name__)
)
failure.setAttribute(
'message',
safe_unicode(test_result.err[1])
)
error_info = safe_unicode(test_result.get_error_info())
_XMLTestResult._createCDATAsections(
xml_document, failure, error_info)
else:
failure.setAttribute('type', 'skip')
failure.setAttribute('message', safe_unicode(test_result.err))
_report_testcase = staticmethod(_report_testcase)
def generate_reports(self, test_runner):
"""
Generates the XML reports to a given XMLTestRunner object.
"""
from xml.dom.minidom import Document
all_results = self._get_info_by_testcase()
outputHandledAsString = \
isinstance(test_runner.output, six.string_types)
if (outputHandledAsString and not os.path.exists(test_runner.output)):
os.makedirs(test_runner.output)
if not outputHandledAsString:
doc = Document()
testsuite = doc.createElement('testsuites')
doc.appendChild(testsuite)
parentElement = testsuite
for suite, tests in all_results.items():
if outputHandledAsString:
doc = Document()
parentElement = doc
suite_name = suite
if test_runner.outsuffix:
# not checking with 'is not None', empty means no suffix.
suite_name = '%s-%s' % (suite, test_runner.outsuffix)
# Build the XML file
testsuite = _XMLTestResult._report_testsuite(
suite_name, tests, doc, parentElement, self.properties
)
xml_content = doc.toprettyxml(
indent='\t',
encoding=test_runner.encoding
)
if outputHandledAsString:
filename = path.join(
test_runner.output,
'TEST-%s.xml' % suite_name)
with open(filename, 'wb') as report_file:
report_file.write(xml_content)
if not outputHandledAsString:
# Assume that test_runner.output is a stream
test_runner.output.write(xml_content)
def _exc_info_to_string(self, err, test):
"""Converts a sys.exc_info()-style tuple of values into a string."""
if six.PY3:
# It works fine in python 3
try:
return super(_XMLTestResult, self)._exc_info_to_string(
err, test)
except AttributeError:
# We keep going using the legacy python <= 2 way
pass
# This comes directly from python2 unittest
exctype, value, tb = err
# Skip test runner traceback levels
while tb and self._is_relevant_tb_level(tb):
tb = tb.tb_next
if exctype is test.failureException:
# Skip assert*() traceback levels
length = self._count_relevant_tb_levels(tb)
msgLines = traceback.format_exception(exctype, value, tb, length)
else:
msgLines = traceback.format_exception(exctype, value, tb)
if self.buffer:
# Only try to get sys.stdout and sys.sterr as they not be
# StringIO yet, e.g. when test fails during __call__
try:
output = sys.stdout.getvalue()
except AttributeError:
output = None
try:
error = sys.stderr.getvalue()
except AttributeError:
error = None
if output:
if not output.endswith('\n'):
output += '\n'
msgLines.append(STDOUT_LINE % output)
if error:
if not error.endswith('\n'):
error += '\n'
msgLines.append(STDERR_LINE % error)
# This is the extra magic to make sure all lines are str
encoding = getattr(sys.stdout, 'encoding', 'utf-8')
lines = []
for line in msgLines:
if not isinstance(line, str):
# utf8 shouldnt be hard-coded, but not sure f
line = line.encode(encoding)
lines.append(line)
return ''.join(lines)