You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
242 lines
8.2 KiB
242 lines
8.2 KiB
"""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.tb_locals = 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 occurred."""
|
|
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 instances 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
|
|
tb = self._clean_tracebacks(exctype, value, tb, test)
|
|
tb_e = traceback.TracebackException(
|
|
exctype, value, tb, capture_locals=self.tb_locals)
|
|
msgLines = list(tb_e.format())
|
|
|
|
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 _clean_tracebacks(self, exctype, value, tb, test):
|
|
ret = None
|
|
first = True
|
|
excs = [(exctype, value, tb)]
|
|
while excs:
|
|
(exctype, value, tb) = excs.pop()
|
|
# Skip test runner traceback levels
|
|
while tb and self._is_relevant_tb_level(tb):
|
|
tb = tb.tb_next
|
|
|
|
# Skip assert*() traceback levels
|
|
if exctype is test.failureException:
|
|
self._remove_unittest_tb_frames(tb)
|
|
|
|
if first:
|
|
ret = tb
|
|
first = False
|
|
else:
|
|
value.__traceback__ = tb
|
|
|
|
if value is not None:
|
|
for c in (value.__cause__, value.__context__):
|
|
if c is not None:
|
|
excs.append((type(c), c, c.__traceback__))
|
|
return ret
|
|
|
|
def _is_relevant_tb_level(self, tb):
|
|
return '__unittest' in tb.tb_frame.f_globals
|
|
|
|
def _remove_unittest_tb_frames(self, tb):
|
|
'''Truncates usercode tb at the first unittest frame.
|
|
|
|
If the first frame of the traceback is in user code,
|
|
the prefix up to the first unittest frame is returned.
|
|
If the first frame is already in the unittest module,
|
|
the traceback is not modified.
|
|
'''
|
|
prev = None
|
|
while tb and not self._is_relevant_tb_level(tb):
|
|
prev = tb
|
|
tb = tb.tb_next
|
|
if prev is not None:
|
|
prev.tb_next = None
|
|
|
|
def __repr__(self):
|
|
return ("<%s run=%i errors=%i failures=%i>" %
|
|
(util.strclass(self.__class__), self.testsRun, len(self.errors),
|
|
len(self.failures)))
|