Source.Python/addons/source-python/Python3/unittest/suite.py at main · CookStar/Source.Python · GitHub

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"""TestSuite"""

import sys

from . import case

from . import util

__unittest = True

def _call_if_exists(parent, attr):

func = getattr(parent, attr, lambda: None)

func()

class BaseTestSuite(object):

"""A simple test suite that doesn't provide class or module shared fixtures.

"""

_cleanup = True

def __init__(self, tests=()):

self._tests = []

self._removed_tests = 0

self.addTests(tests)

def __repr__(self):

return "<%s tests=%s>" % (util.strclass(self.__class__), list(self))

def __eq__(self, other):

if not isinstance(other, self.__class__):

return NotImplemented

return list(self) == list(other)

def __iter__(self):

return iter(self._tests)

def countTestCases(self):

cases = self._removed_tests

for test in self:

if test:

cases += test.countTestCases()

return cases

def addTest(self, test):

# sanity checks

if not callable(test):

raise TypeError("{} is not callable".format(repr(test)))

if isinstance(test, type) and issubclass(test,

(case.TestCase, TestSuite)):

raise TypeError("TestCases and TestSuites must be instantiated "

"before passing them to addTest()")

self._tests.append(test)

def addTests(self, tests):

if isinstance(tests, str):

raise TypeError("tests must be an iterable of tests, not a string")

for test in tests:

self.addTest(test)

def run(self, result):

for index, test in enumerate(self):

if result.shouldStop:

break

test(result)

if self._cleanup:

self._removeTestAtIndex(index)

return result

def _removeTestAtIndex(self, index):

"""Stop holding a reference to the TestCase at index."""

try:

test = self._tests[index]

except TypeError:

# support for suite implementations that have overridden self._tests

pass

else:

# Some unittest tests add non TestCase/TestSuite objects to

# the suite.

if hasattr(test, 'countTestCases'):

self._removed_tests += test.countTestCases()

self._tests[index] = None

def __call__(self, *args, **kwds):

return self.run(*args, **kwds)

def debug(self):

"""Run the tests without collecting errors in a TestResult"""

for test in self:

test.debug()

class TestSuite(BaseTestSuite):

"""A test suite is a composite test consisting of a number of TestCases.

For use, create an instance of TestSuite, then add test case instances.

When all tests have been added, the suite can be passed to a test

runner, such as TextTestRunner. It will run the individual test cases

in the order in which they were added, aggregating the results. When

subclassing, do not forget to call the base class constructor.

"""

def run(self, result, debug=False):

topLevel = False

if getattr(result, '_testRunEntered', False) is False:

result._testRunEntered = topLevel = True

for index, test in enumerate(self):

if result.shouldStop:

break

if _isnotsuite(test):

self._tearDownPreviousClass(test, result)

self._handleModuleFixture(test, result)

self._handleClassSetUp(test, result)

result._previousTestClass = test.__class__

if (getattr(test.__class__, '_classSetupFailed', False) or

getattr(result, '_moduleSetUpFailed', False)):

continue

if not debug:

test(result)

else:

test.debug()

if self._cleanup:

self._removeTestAtIndex(index)

if topLevel:

self._tearDownPreviousClass(None, result)

self._handleModuleTearDown(result)

result._testRunEntered = False

return result

def debug(self):

"""Run the tests without collecting errors in a TestResult"""

debug = _DebugResult()

self.run(debug, True)

################################

def _handleClassSetUp(self, test, result):

previousClass = getattr(result, '_previousTestClass', None)

currentClass = test.__class__

if currentClass == previousClass:

return

if result._moduleSetUpFailed:

return

if getattr(currentClass, "__unittest_skip__", False):

return

try:

currentClass._classSetupFailed = False

except TypeError:

# test may actually be a function

# so its class will be a builtin-type

pass

setUpClass = getattr(currentClass, 'setUpClass', None)

if setUpClass is not None:

_call_if_exists(result, '_setupStdout')

try:

setUpClass()

except Exception as e:

if isinstance(result, _DebugResult):

raise

currentClass._classSetupFailed = True

className = util.strclass(currentClass)

errorName = 'setUpClass (%s)' % className

self._addClassOrModuleLevelException(result, e, errorName)

finally:

_call_if_exists(result, '_restoreStdout')

def _get_previous_module(self, result):

previousModule = None

previousClass = getattr(result, '_previousTestClass', None)

if previousClass is not None:

previousModule = previousClass.__module__

return previousModule

def _handleModuleFixture(self, test, result):

previousModule = self._get_previous_module(result)

currentModule = test.__class__.__module__

if currentModule == previousModule:

return

self._handleModuleTearDown(result)

result._moduleSetUpFailed = False

try:

module = sys.modules[currentModule]

except KeyError:

return

setUpModule = getattr(module, 'setUpModule', None)

if setUpModule is not None:

_call_if_exists(result, '_setupStdout')

try:

setUpModule()

except Exception as e:

if isinstance(result, _DebugResult):

raise

result._moduleSetUpFailed = True

errorName = 'setUpModule (%s)' % currentModule

self._addClassOrModuleLevelException(result, e, errorName)

finally:

_call_if_exists(result, '_restoreStdout')

def _addClassOrModuleLevelException(self, result, exception, errorName):

error = _ErrorHolder(errorName)

addSkip = getattr(result, 'addSkip', None)

if addSkip is not None and isinstance(exception, case.SkipTest):

addSkip(error, str(exception))

else:

result.addError(error, sys.exc_info())

def _handleModuleTearDown(self, result):

previousModule = self._get_previous_module(result)

if previousModule is None:

return

if result._moduleSetUpFailed:

return

try:

module = sys.modules[previousModule]

except KeyError:

return

tearDownModule = getattr(module, 'tearDownModule', None)

if tearDownModule is not None:

_call_if_exists(result, '_setupStdout')

try:

tearDownModule()

except Exception as e:

if isinstance(result, _DebugResult):

raise

errorName = 'tearDownModule (%s)' % previousModule

self._addClassOrModuleLevelException(result, e, errorName)

finally:

_call_if_exists(result, '_restoreStdout')

def _tearDownPreviousClass(self, test, result):

previousClass = getattr(result, '_previousTestClass', None)

currentClass = test.__class__

if currentClass == previousClass:

return

if getattr(previousClass, '_classSetupFailed', False):

return

if getattr(result, '_moduleSetUpFailed', False):

return

if getattr(previousClass, "__unittest_skip__", False):

return

tearDownClass = getattr(previousClass, 'tearDownClass', None)

if tearDownClass is not None:

_call_if_exists(result, '_setupStdout')

try:

tearDownClass()

except Exception as e:

if isinstance(result, _DebugResult):

raise

className = util.strclass(previousClass)

errorName = 'tearDownClass (%s)' % className

self._addClassOrModuleLevelException(result, e, errorName)

finally:

_call_if_exists(result, '_restoreStdout')

class _ErrorHolder(object):

"""

Placeholder for a TestCase inside a result. As far as a TestResult

is concerned, this looks exactly like a unit test. Used to insert

arbitrary errors into a test suite run.

"""

# Inspired by the ErrorHolder from Twisted:

# http://twistedmatrix.com/trac/browser/trunk/twisted/trial/runner.py

# attribute used by TestResult._exc_info_to_string

failureException = None

def __init__(self, description):

self.description = description

def id(self):

return self.description

def shortDescription(self):

return None

def __repr__(self):

return "<ErrorHolder description=%r>" % (self.description,)

def __str__(self):

return self.id()

def run(self, result):

# could call result.addError(...) - but this test-like object

# shouldn't be run anyway

pass

def __call__(self, result):

return self.run(result)

def countTestCases(self):

return 0

def _isnotsuite(test):

"A crude way to tell apart testcases and suites with duck-typing"

try:

iter(test)

except TypeError:

return True

return False

class _DebugResult(object):

"Used by the TestSuite to hold previous class when running in debug."

_previousTestClass = None

_moduleSetUpFailed = False

shouldStop = False

Source.Python/addons/source-python/Python3/unittest/suite.py at main · CookStar/Source.Python · GitHub

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