/usr/lib/python3.4/unittest/result.py is in libpython3.4-stdlib 3.4.3-1ubuntu1~14.04.7.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 | """Test result object"""
import io
import sys
import traceback
from . import util
from functools import wraps
__unittest = True
def failfast(method):
@wraps(method)
def inner(self, *args, **kw):
if getattr(self, 'failfast', False):
self.stop()
return method(self, *args, **kw)
return inner
STDOUT_LINE = '\nStdout:\n%s'
STDERR_LINE = '\nStderr:\n%s'
class TestResult(object):
"""Holder for test result information.
Test results are automatically managed by the TestCase and TestSuite
classes, and do not need to be explicitly manipulated by writers of tests.
Each instance holds the total number of tests run, and collections of
failures and errors that occurred among those test runs. The collections
contain tuples of (testcase, exceptioninfo), where exceptioninfo is the
formatted traceback of the error that occurred.
"""
_previousTestClass = None
_testRunEntered = False
_moduleSetUpFailed = False
def __init__(self, stream=None, descriptions=None, verbosity=None):
self.failfast = False
self.failures = []
self.errors = []
self.testsRun = 0
self.skipped = []
self.expectedFailures = []
self.unexpectedSuccesses = []
self.shouldStop = False
self.buffer = False
self._stdout_buffer = None
self._stderr_buffer = None
self._original_stdout = sys.stdout
self._original_stderr = sys.stderr
self._mirrorOutput = False
def printErrors(self):
"Called by TestRunner after test run"
def startTest(self, test):
"Called when the given test is about to be run"
self.testsRun += 1
self._mirrorOutput = False
self._setupStdout()
def _setupStdout(self):
if self.buffer:
if self._stderr_buffer is None:
self._stderr_buffer = io.StringIO()
self._stdout_buffer = io.StringIO()
sys.stdout = self._stdout_buffer
sys.stderr = self._stderr_buffer
def startTestRun(self):
"""Called once before any tests are executed.
See startTest for a method called before each test.
"""
def stopTest(self, test):
"""Called when the given test has been run"""
self._restoreStdout()
self._mirrorOutput = False
def _restoreStdout(self):
if self.buffer:
if self._mirrorOutput:
output = sys.stdout.getvalue()
error = sys.stderr.getvalue()
if output:
if not output.endswith('\n'):
output += '\n'
self._original_stdout.write(STDOUT_LINE % output)
if error:
if not error.endswith('\n'):
error += '\n'
self._original_stderr.write(STDERR_LINE % error)
sys.stdout = self._original_stdout
sys.stderr = self._original_stderr
self._stdout_buffer.seek(0)
self._stdout_buffer.truncate()
self._stderr_buffer.seek(0)
self._stderr_buffer.truncate()
def stopTestRun(self):
"""Called once after all tests are executed.
See stopTest for a method called after each test.
"""
@failfast
def addError(self, test, err):
"""Called when an error has occurred. 'err' is a tuple of values as
returned by sys.exc_info().
"""
self.errors.append((test, self._exc_info_to_string(err, test)))
self._mirrorOutput = True
@failfast
def addFailure(self, test, err):
"""Called when an error has occurred. 'err' is a tuple of values as
returned by sys.exc_info()."""
self.failures.append((test, self._exc_info_to_string(err, test)))
self._mirrorOutput = True
def addSubTest(self, test, subtest, err):
"""Called at the end of a subtest.
'err' is None if the subtest ended successfully, otherwise it's a
tuple of values as returned by sys.exc_info().
"""
# By default, we don't do anything with successful subtests, but
# more sophisticated test results might want to record them.
if err is not None:
if getattr(self, 'failfast', False):
self.stop()
if issubclass(err[0], test.failureException):
errors = self.failures
else:
errors = self.errors
errors.append((subtest, self._exc_info_to_string(err, test)))
self._mirrorOutput = True
def addSuccess(self, test):
"Called when a test has completed successfully"
pass
def addSkip(self, test, reason):
"""Called when a test is skipped."""
self.skipped.append((test, reason))
def addExpectedFailure(self, test, err):
"""Called when an expected failure/error occured."""
self.expectedFailures.append(
(test, self._exc_info_to_string(err, test)))
@failfast
def addUnexpectedSuccess(self, test):
"""Called when a test was expected to fail, but succeed."""
self.unexpectedSuccesses.append(test)
def wasSuccessful(self):
"""Tells whether or not this result was a success."""
# The hasattr check is for test_result's OldResult test. That
# way this method works on objects that lack the attribute.
# (where would such result intances come from? old stored pickles?)
return ((len(self.failures) == len(self.errors) == 0) and
(not hasattr(self, 'unexpectedSuccesses') or
len(self.unexpectedSuccesses) == 0))
def stop(self):
"""Indicates that the tests should be aborted."""
self.shouldStop = True
def _exc_info_to_string(self, err, test):
"""Converts a sys.exc_info()-style tuple of values into a string."""
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:
output = sys.stdout.getvalue()
error = sys.stderr.getvalue()
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)
return ''.join(msgLines)
def _is_relevant_tb_level(self, tb):
return '__unittest' in tb.tb_frame.f_globals
def _count_relevant_tb_levels(self, tb):
length = 0
while tb and not self._is_relevant_tb_level(tb):
length += 1
tb = tb.tb_next
return length
def __repr__(self):
return ("<%s run=%i errors=%i failures=%i>" %
(util.strclass(self.__class__), self.testsRun, len(self.errors),
len(self.failures)))
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