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import inspect
import io
import os
import sys
import datetime
import time
import traceback
import re
from os import path
from io import StringIO
# use direct import to bypass freezegun
from time import time
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" % (chr(low), chr(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 safe_unicode(data, encoding='utf8'):
"""Return a unicode string containing only valid XML characters.
encoding - if data is a byte string it is first decoded to unicode
using this encoding.
"""
data = str(data)
return INVALID_XML_1_0_UNICODE_RE.sub('', data)
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 _DuplicateWriter(io.TextIOBase):
"""
Duplicate output from the first handle to the second handle
The second handle is expected to be a StringIO and not to block.
"""
def __init__(self, first, second):
super(_DuplicateWriter, self).__init__()
self._first = first
self._second = second
def flush(self):
self._first.flush()
self._second.flush()
def writable(self):
return True
def getvalue(self):
return self._second.getvalue()
def writelines(self, lines):
self._first.writelines(lines)
self._second.writelines(lines)
def write(self, b):
if isinstance(self._first, io.TextIOBase):
wrote = self._first.write(b)
if wrote is not None:
# expected to always succeed to write
self._second.write(b[:wrote])
return wrote
else:
# file-like object that doesn't return wrote bytes.
self._first.write(b)
self._second.write(b)
return len(b)
class _TestInfo(object):
"""
This class keeps useful information about the execution of a
test method.
"""
# Possible test outcomes
(SUCCESS, FAILURE, ERROR, SKIP) = range(4)
OUTCOME_ELEMENTS = {
SUCCESS: None,
FAILURE: 'failure',
ERROR: 'error',
SKIP: 'skipped',
}
def __init__(self, test_result, test_method, outcome=SUCCESS, err=None, subTest=None, filename=None, lineno=None):
self.test_result = test_result
self.outcome = outcome
self.elapsed_time = 0
self.timestamp = datetime.datetime.min.replace(microsecond=0).isoformat()
if err is not None:
if self.outcome != _TestInfo.SKIP:
self.test_exception_name = safe_unicode(err[0].__name__)
self.test_exception_message = safe_unicode(err[1])
else:
self.test_exception_message = safe_unicode(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(
err, test_method)
)
self.test_name = testcase_name(test_method)
self.test_id = test_method.id()
if subTest:
self.test_id = subTest.id()
self.test_description = self.test_result.getDescription(subTest)
self.filename = filename
self.lineno = lineno
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
timestamp = datetime.datetime.fromtimestamp(self.test_result.stop_time)
self.timestamp = timestamp.replace(microsecond=0).isoformat()
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._stdout_data = None
self._stderr_data = None
self._stdout_capture = StringIO()
self.__stdout_saved = None
self._stderr_capture = StringIO()
self.__stderr_saved = None
self.successes = []
self.callback = None
self.elapsed_times = elapsed_times
self.properties = properties # junit testsuite properties
self.filename = None
self.lineno = None
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.
"""
test_info.filename = self.filename
test_info.lineno = self.lineno
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.stream.flush()
self.callback = callback
def startTest(self, test):
"""
Called before execute each test method.
"""
self.start_time = time()
TestResult.startTest(self, test)
try:
if getattr(test, '_dt_test', None) is not None:
# doctest.DocTestCase
self.filename = test._dt_test.filename
self.lineno = test._dt_test.lineno
else:
# regular unittest.TestCase?
test_method = getattr(test, test._testMethodName)
test_class = type(test)
# Note: inspect can get confused with decorators, so use class.
self.filename = inspect.getsourcefile(test_class)
# Handle partial and partialmethod objects.
test_method = getattr(test_method, 'func', test_method)
_, self.lineno = inspect.getsourcelines(test_method)
except (AttributeError, IOError, TypeError):
# issue #188, #189, #195
# some frameworks can make test method opaque.
pass
if self.showAll:
self.stream.write(' ' + self.getDescription(test))
self.stream.write(" ... ")
self.stream.flush()
def _setupStdout(self):
"""
Capture stdout / stderr by replacing sys.stdout / sys.stderr
"""
super(_XMLTestResult, self)._setupStdout()
self.__stdout_saved = sys.stdout
sys.stdout = _DuplicateWriter(sys.stdout, self._stdout_capture)
self.__stderr_saved = sys.stderr
sys.stderr = _DuplicateWriter(sys.stderr, self._stderr_capture)
def _restoreStdout(self):
"""
Stop capturing stdout / stderr and recover sys.stdout / sys.stderr
"""
if self.__stdout_saved:
sys.stdout = self.__stdout_saved
self.__stdout_saved = None
if self.__stderr_saved:
sys.stderr = self.__stderr_saved
self.__stderr_saved = None
self._stdout_capture.seek(0)
self._stdout_capture.truncate()
self._stderr_capture.seek(0)
self._stderr_capture.truncate()
super(_XMLTestResult, self)._restoreStdout()
def _save_output_data(self):
self._stdout_data = self._stdout_capture.getvalue()
self._stderr_data = self._stderr_capture.getvalue()
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()
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:
errorText = None
errorValue = None
errorList = None
if issubclass(err[0], test.failureException):
errorText = 'FAIL'
errorValue = self.infoclass.FAILURE
errorList = self.failures
else:
errorText = 'ERROR'
errorValue = self.infoclass.ERROR
errorList = self.errors
self._save_output_data()
testinfo = self.infoclass(
self, testcase, errorValue, err, subTest=test)
errorList.append((
testinfo,
self._exc_info_to_string(err, testcase)
))
self._prepare_callback(testinfo, [], errorText, errorText[0])
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)
testinfo.test_exception_name = 'skip'
testinfo.test_exception_message = reason
self.skipped.append((testinfo, reason))
self._prepare_callback(testinfo, [], 'skip', 's')
def addExpectedFailure(self, test, err):
"""
Missing in xmlrunner, copy-pasted from xmlrunner addError.
"""
self._save_output_data()
testinfo = self.infoclass(self, test, self.infoclass.SKIP, err)
testinfo.test_exception_name = 'XFAIL'
testinfo.test_exception_message = 'expected failure: {}'.format(testinfo.test_exception_message)
self.expectedFailures.append((testinfo, self._exc_info_to_string(err, test)))
self._prepare_callback(testinfo, [], 'expected failure', 'x')
@failfast
def addUnexpectedSuccess(self, test):
"""
Missing in xmlrunner, copy-pasted from xmlrunner addSuccess.
"""
self._save_output_data()
testinfo = self.infoclass(self, test) # do not set outcome here because it will need exception
testinfo.outcome = self.infoclass.ERROR
# But since we want to have error outcome, we need to provide additional fields:
testinfo.test_exception_name = 'UnexpectedSuccess'
testinfo.test_exception_message = ('Unexpected success: This test was marked as expected failure but passed, '
'please review it')
self.unexpectedSuccesses.append((testinfo, 'unexpected success'))
self._prepare_callback(testinfo, [], 'unexpected success', 'u')
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.test_description)
)
self.stream.writeln(self.separator2)
self.stream.writeln('%s' % test_info.get_error_info())
self.stream.flush()
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, self.expectedFailures, self.unexpectedSuccesses):
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)
module_name = suite_name.rpartition('.')[0]
file_name = module_name.replace('.', '/') + '.py'
testsuite.setAttribute('name', suite_name)
testsuite.setAttribute('tests', str(len(tests)))
testsuite.setAttribute('file', file_name)
testsuite.setAttribute(
'time', '%.3f' % sum(map(lambda e: e.elapsed_time, tests))
)
if tests:
testsuite.setAttribute(
'timestamp', max(map(lambda e: e.timestamp, 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)
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)
testcase.setAttribute('timestamp', test_result.timestamp)
if test_result.filename is not None:
# Try to make filename relative to current directory.
filename = os.path.relpath(test_result.filename)
filename = test_result.filename if filename.startswith('../') else filename
testcase.setAttribute('file', filename)
if test_result.lineno is not None:
testcase.setAttribute('line', str(test_result.lineno))
result_elem_name = test_result.OUTCOME_ELEMENTS[test_result.outcome]
if result_elem_name is not None:
result_elem = xml_document.createElement(result_elem_name)
testcase.appendChild(result_elem)
result_elem.setAttribute(
'type',
test_result.test_exception_name
)
result_elem.setAttribute(
'message',
test_result.test_exception_message
)
if test_result.get_error_info():
error_info = safe_unicode(test_result.get_error_info())
_XMLTestResult._createCDATAsections(
xml_document, result_elem, error_info)
if test_result.stdout is not None:
systemout = xml_document.createElement('system-out')
testcase.appendChild(systemout)
_XMLTestResult._createCDATAsections(
xml_document, systemout, test_result.stdout)
if test_result.stderr is not None:
systemout = xml_document.createElement('system-err')
testcase.appendChild(systemout)
_XMLTestResult._createCDATAsections(
xml_document, systemout, test_result.stderr)
_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, str)
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
)
if outputHandledAsString:
xml_content = doc.toprettyxml(
indent='\t',
encoding=test_runner.encoding
)
filename = path.join(
test_runner.output,
'TEST-%s.xml' % suite_name)
with open(filename, 'wb') as report_file:
report_file.write(xml_content)
if self.showAll:
self.stream.writeln('Generated XML report: {}'.format(filename))
if not outputHandledAsString:
# Assume that test_runner.output is a stream
xml_content = doc.toprettyxml(
indent='\t',
encoding=test_runner.encoding
)
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."""
return super(_XMLTestResult, self)._exc_info_to_string(err, test)