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Merged revisions 74095 via svnmerge from 

svn+ssh://pythondev@svn.python.org/python/trunk

........
  r74095 | benjamin.peterson | 2009-07-19 15:18:21 -0500 (Sun, 19 Jul 2009) | 1 line

  split unittest.py into a package
........
This commit is contained in:
Benjamin Peterson 2009-07-19 21:01:52 +00:00
parent c4296d1edc
commit bed7d04fed
14 changed files with 950 additions and 928 deletions
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38
Lib/test/test_doctest.py
View File

@ -1813,19 +1813,19 @@ def test_DocTestSuite():
>>> import test.sample_doctest
>>> suite = doctest.DocTestSuite(test.sample_doctest)
>>> suite.run(unittest.TestResult())
<unittest.TestResult run=9 errors=0 failures=4>
<unittest.result.TestResult run=9 errors=0 failures=4>
We can also supply the module by name:
>>> suite = doctest.DocTestSuite('test.sample_doctest')
>>> suite.run(unittest.TestResult())
<unittest.TestResult run=9 errors=0 failures=4>
<unittest.result.TestResult run=9 errors=0 failures=4>
We can use the current module:
>>> suite = test.sample_doctest.test_suite()
>>> suite.run(unittest.TestResult())
<unittest.TestResult run=9 errors=0 failures=4>
<unittest.result.TestResult run=9 errors=0 failures=4>
We can supply global variables. If we pass globs, they will be
used instead of the module globals. Here we'll pass an empty
@ -1833,7 +1833,7 @@ def test_DocTestSuite():
>>> suite = doctest.DocTestSuite('test.sample_doctest', globs={})
>>> suite.run(unittest.TestResult())
<unittest.TestResult run=9 errors=0 failures=5>
<unittest.result.TestResult run=9 errors=0 failures=5>
Alternatively, we can provide extra globals. Here we'll make an
error go away by providing an extra global variable:
@ -1841,7 +1841,7 @@ def test_DocTestSuite():
>>> suite = doctest.DocTestSuite('test.sample_doctest',
... extraglobs={'y': 1})
>>> suite.run(unittest.TestResult())
<unittest.TestResult run=9 errors=0 failures=3>
<unittest.result.TestResult run=9 errors=0 failures=3>
You can pass option flags. Here we'll cause an extra error
by disabling the blank-line feature:
@ -1849,7 +1849,7 @@ def test_DocTestSuite():
>>> suite = doctest.DocTestSuite('test.sample_doctest',
... optionflags=doctest.DONT_ACCEPT_BLANKLINE)
>>> suite.run(unittest.TestResult())
<unittest.TestResult run=9 errors=0 failures=5>
<unittest.result.TestResult run=9 errors=0 failures=5>
You can supply setUp and tearDown functions:
@ -1866,7 +1866,7 @@ def test_DocTestSuite():
>>> suite = doctest.DocTestSuite('test.sample_doctest',
... setUp=setUp, tearDown=tearDown)
>>> suite.run(unittest.TestResult())
<unittest.TestResult run=9 errors=0 failures=3>
<unittest.result.TestResult run=9 errors=0 failures=3>
But the tearDown restores sanity:
@ -1884,7 +1884,7 @@ def test_DocTestSuite():
>>> suite = doctest.DocTestSuite('test.sample_doctest', setUp=setUp)
>>> suite.run(unittest.TestResult())
<unittest.TestResult run=9 errors=0 failures=3>
<unittest.result.TestResult run=9 errors=0 failures=3>
Here, we didn't need to use a tearDown function because we
modified the test globals, which are a copy of the
@ -1903,7 +1903,7 @@ def test_DocFileSuite():
... 'test_doctest2.txt',
... 'test_doctest4.txt')
>>> suite.run(unittest.TestResult())
<unittest.TestResult run=3 errors=0 failures=2>
<unittest.result.TestResult run=3 errors=0 failures=2>
The test files are looked for in the directory containing the
calling module. A package keyword argument can be provided to
@ -1915,7 +1915,7 @@ def test_DocFileSuite():
... 'test_doctest4.txt',
... package='test')
>>> suite.run(unittest.TestResult())
<unittest.TestResult run=3 errors=0 failures=2>
<unittest.result.TestResult run=3 errors=0 failures=2>
Support for using a package's __loader__.get_data() is also
provided.
@ -1934,14 +1934,14 @@ def test_DocFileSuite():
... finally:
... if added_loader:
... del test.__loader__
<unittest.TestResult run=3 errors=0 failures=2>
<unittest.result.TestResult run=3 errors=0 failures=2>
'/' should be used as a path separator. It will be converted
to a native separator at run time:
>>> suite = doctest.DocFileSuite('../test/test_doctest.txt')
>>> suite.run(unittest.TestResult())
<unittest.TestResult run=1 errors=0 failures=1>
<unittest.result.TestResult run=1 errors=0 failures=1>
If DocFileSuite is used from an interactive session, then files
are resolved relative to the directory of sys.argv[0]:
@ -1966,7 +1966,7 @@ def test_DocFileSuite():
>>> suite = doctest.DocFileSuite(test_file, module_relative=False)
>>> suite.run(unittest.TestResult())
<unittest.TestResult run=1 errors=0 failures=1>
<unittest.result.TestResult run=1 errors=0 failures=1>
It is an error to specify `package` when `module_relative=False`:
@ -1982,7 +1982,7 @@ def test_DocFileSuite():
... 'test_doctest4.txt',
... globs={'favorite_color': 'blue'})
>>> suite.run(unittest.TestResult())
<unittest.TestResult run=3 errors=0 failures=1>
<unittest.result.TestResult run=3 errors=0 failures=1>
In this case, we supplied a missing favorite color. You can
provide doctest options:
@ -1993,7 +1993,7 @@ def test_DocFileSuite():
... optionflags=doctest.DONT_ACCEPT_BLANKLINE,
... globs={'favorite_color': 'blue'})
>>> suite.run(unittest.TestResult())
<unittest.TestResult run=3 errors=0 failures=2>
<unittest.result.TestResult run=3 errors=0 failures=2>
And, you can provide setUp and tearDown functions:
@ -2012,7 +2012,7 @@ def test_DocFileSuite():
... 'test_doctest4.txt',
... setUp=setUp, tearDown=tearDown)
>>> suite.run(unittest.TestResult())
<unittest.TestResult run=3 errors=0 failures=1>
<unittest.result.TestResult run=3 errors=0 failures=1>
But the tearDown restores sanity:
@ -2031,7 +2031,7 @@ def test_DocFileSuite():
>>> suite = doctest.DocFileSuite('test_doctest.txt', setUp=setUp)
>>> suite.run(unittest.TestResult())
<unittest.TestResult run=1 errors=0 failures=0>
<unittest.result.TestResult run=1 errors=0 failures=0>
Here, we didn't need to use a tearDown function because we
modified the test globals. The test globals are
@ -2043,7 +2043,7 @@ def test_DocFileSuite():
>>> suite = doctest.DocFileSuite('test_doctest3.txt')
>>> suite.run(unittest.TestResult())
<unittest.TestResult run=1 errors=0 failures=0>
<unittest.result.TestResult run=1 errors=0 failures=0>
If the tests contain non-ASCII characters, we have to specify which
encoding the file is encoded with. We do so by using the `encoding`
@ -2054,7 +2054,7 @@ def test_DocFileSuite():
... 'test_doctest4.txt',
... encoding='utf-8')
>>> suite.run(unittest.TestResult())
<unittest.TestResult run=3 errors=0 failures=2>
<unittest.result.TestResult run=3 errors=0 failures=2>
"""

2
Lib/test/test_linecache.py
View File

@ -12,7 +12,7 @@ EMPTY = ''
TESTS = 'cjkencodings_test inspect_fodder inspect_fodder2 mapping_tests'
TESTS = TESTS.split()
TEST_PATH = os.path.dirname(support.__file__)
MODULES = "linecache unittest".split()
MODULES = "linecache abc".split()
MODULE_PATH = os.path.dirname(FILENAME)
SOURCE_1 = '''

3
Lib/test/test_pyclbr.py
View File

@ -141,7 +141,8 @@ class PyclbrTest(TestCase):
def test_easy(self):
self.checkModule('pyclbr')
self.checkModule('ast')
self.checkModule('doctest', ignore=("TestResults", "_SpoofOut"))
self.checkModule('doctest', ignore=("TestResults", "_SpoofOut",
"DocTestCase"))
self.checkModule('difflib', ignore=("Match",))
def test_decorators(self):

6
Lib/test/test_unittest.py
View File

@ -6,6 +6,7 @@ Still need testing:
TestCase.{assert,fail}* methods (some are tested implicitly)
"""
import builtins
import os
import re
import sys
@ -3389,9 +3390,10 @@ class TestDiscovery(TestCase):
def test_get_module_from_path(self):
loader = unittest.TestLoader()
old_import = __import__
def restore_import():
unittest.__import__ = __import__
unittest.__import__ = lambda *_: None
builtins.__import__ = old_import
builtins.__import__ = lambda *_: None
self.addCleanup(restore_import)
expected_module = object()

63
Lib/unittest/__init__.py Normal file
View File

@ -0,0 +1,63 @@
"""
Python unit testing framework, based on Erich Gamma's JUnit and Kent Beck's
Smalltalk testing framework.
This module contains the core framework classes that form the basis of
specific test cases and suites (TestCase, TestSuite etc.), and also a
text-based utility class for running the tests and reporting the results
(TextTestRunner).
Simple usage:
import unittest
class IntegerArithmenticTestCase(unittest.TestCase):
def testAdd(self): ## test method names begin 'test*'
self.assertEqual((1 + 2), 3)
self.assertEqual(0 + 1, 1)
def testMultiply(self):
self.assertEqual((0 * 10), 0)
self.assertEqual((5 * 8), 40)
if __name__ == '__main__':
unittest.main()
Further information is available in the bundled documentation, and from
http://docs.python.org/library/unittest.html
Copyright (c) 1999-2003 Steve Purcell
Copyright (c) 2003-2009 Python Software Foundation
This module is free software, and you may redistribute it and/or modify
it under the same terms as Python itself, so long as this copyright message
and disclaimer are retained in their original form.
IN NO EVENT SHALL THE AUTHOR BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF
THIS CODE, EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGE.
THE AUTHOR SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. THE CODE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS,
AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
"""
__all__ = ['TestResult', 'TestCase', 'TestSuite',
'TextTestRunner', 'TestLoader', 'FunctionTestCase', 'main',
'defaultTestLoader', 'SkipTest', 'skip', 'skipIf', 'skipUnless',
'expectedFailure']
# Expose obsolete functions for backwards compatibility
__all__.extend(['getTestCaseNames', 'makeSuite', 'findTestCases'])
from .result import TestResult
from .case import (TestCase, FunctionTestCase, SkipTest, skip, skipIf,
skipUnless, expectedFailure)
from .suite import TestSuite
from .loader import (TestLoader, defaultTestLoader, makeSuite, getTestCaseNames,
findTestCases)
from .main import TestProgram, main
from .runner import TextTestRunner

8
Lib/unittest/__main__.py Normal file
View File

@ -0,0 +1,8 @@
"""Main entry point"""
import sys
if sys.argv[0].endswith("__main__.py"):
sys.argv[0] = "unittest"
from .main import main
main(module=None)

922
Lib/unittest.py → Lib/unittest/case.py
View File

@ -1,82 +1,13 @@
#!/usr/bin/env python
'''
Python unit testing framework, based on Erich Gamma's JUnit and Kent Beck's
Smalltalk testing framework.
"""Test case implementation"""
This module contains the core framework classes that form the basis of
specific test cases and suites (TestCase, TestSuite etc.), and also a
text-based utility class for running the tests and reporting the results
(TextTestRunner).
Simple usage:
import unittest
class IntegerArithmenticTestCase(unittest.TestCase):
def testAdd(self): ## test method names begin 'test*'
self.assertEqual((1 + 2), 3)
self.assertEqual(0 + 1, 1)
def testMultiply(self):
self.assertEqual((0 * 10), 0)
self.assertEqual((5 * 8), 40)
if __name__ == '__main__':
unittest.main()
Further information is available in the bundled documentation, and from
http://docs.python.org/library/unittest.html
Copyright (c) 1999-2003 Steve Purcell
Copyright (c) 2003-2009 Python Software Foundation
This module is free software, and you may redistribute it and/or modify
it under the same terms as Python itself, so long as this copyright message
and disclaimer are retained in their original form.
IN NO EVENT SHALL THE AUTHOR BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF
THIS CODE, EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGE.
THE AUTHOR SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. THE CODE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS,
AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
'''
import difflib
import sys
import functools
import os
import difflib
import pprint
import re
import sys
import time
import traceback
import types
import warnings
from fnmatch import fnmatch
##############################################################################
# Exported classes and functions
##############################################################################
__all__ = ['TestResult', 'TestCase', 'TestSuite',
'TextTestRunner', 'TestLoader', 'FunctionTestCase', 'main',
'defaultTestLoader', 'SkipTest', 'skip', 'skipIf', 'skipUnless',
'expectedFailure']
# Expose obsolete functions for backwards compatibility
__all__.extend(['getTestCaseNames', 'makeSuite', 'findTestCases'])
##############################################################################
# Test framework core
##############################################################################
def _strclass(cls):
return "%s.%s" % (cls.__module__, cls.__name__)
from . import result, util
class SkipTest(Exception):
@ -150,119 +81,12 @@ def expectedFailure(func):
raise _UnexpectedSuccess
return wrapper
__unittest = 1
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.
"""
def __init__(self):
self.failures = []
self.errors = []
self.testsRun = 0
self.skipped = []
self.expectedFailures = []
self.unexpectedSuccesses = []
self.shouldStop = False
def startTest(self, test):
"Called when the given test is about to be run"
self.testsRun = self.testsRun + 1
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"
pass
def stopTestRun(self):
"""Called once after all tests are executed.
See stopTest for a method called after each test.
"""
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)))
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)))
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)))
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"
return len(self.failures) == len(self.errors) == 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)
return ''.join(traceback.format_exception(exctype, value,
tb, length))
return ''.join(traceback.format_exception(exctype, value, tb))
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>" % \
(_strclass(self.__class__), self.testsRun, len(self.errors),
len(self.failures))
class _AssertRaisesContext(object):
"""A context manager used to implement TestCase.assertRaises* methods."""
def __init__(self, expected, test_case, callable_obj=None,
expected_regexp=None):
expected_regexp=None):
self.expected = expected
self.failureException = test_case.failureException
if callable_obj is not None:
@ -410,7 +234,7 @@ class TestCase(object):
return 1
def defaultTestResult(self):
return TestResult()
return result.TestResult()
def shortDescription(self):
"""Returns both the test method name and first line of its docstring.
@ -431,7 +255,7 @@ class TestCase(object):
return desc
def id(self):
return "%s.%s" % (_strclass(self.__class__), self._testMethodName)
return "%s.%s" % (util.strclass(self.__class__), self._testMethodName)
def __eq__(self, other):
if type(self) is not type(other):
@ -446,11 +270,11 @@ class TestCase(object):
return hash((type(self), self._testMethodName))
def __str__(self):
return "%s (%s)" % (self._testMethodName, _strclass(self.__class__))
return "%s (%s)" % (self._testMethodName, util.strclass(self.__class__))
def __repr__(self):
return "<%s testMethod=%s>" % \
(_strclass(self.__class__), self._testMethodName)
(util.strclass(self.__class__), self._testMethodName)
def run(self, result=None):
orig_result = result
@ -938,9 +762,11 @@ class TestCase(object):
expected.sort()
actual.sort()
except TypeError:
missing, unexpected = _UnorderableListDifference(expected, actual)
missing, unexpected = util.unorderable_list_difference(expected,
actual)
else:
missing, unexpected = _SortedListDifference(expected, actual)
missing, unexpected = util.sorted_list_difference(expected,
actual)
errors = []
if missing:
errors.append('Expected, but missing:\n %r' % missing)
@ -1025,127 +851,6 @@ class TestCase(object):
raise self.failureException(msg)
def _SortedListDifference(expected, actual):
"""Finds elements in only one or the other of two, sorted input lists.
Returns a two-element tuple of lists. The first list contains those
elements in the "expected" list but not in the "actual" list, and the
second contains those elements in the "actual" list but not in the
"expected" list. Duplicate elements in either input list are ignored.
"""
i = j = 0
missing = []
unexpected = []
while True:
try:
e = expected[i]
a = actual[j]
if e < a:
missing.append(e)
i += 1
while expected[i] == e:
i += 1
elif e > a:
unexpected.append(a)
j += 1
while actual[j] == a:
j += 1
else:
i += 1
try:
while expected[i] == e:
i += 1
finally:
j += 1
while actual[j] == a:
j += 1
except IndexError:
missing.extend(expected[i:])
unexpected.extend(actual[j:])
break
return missing, unexpected
def _UnorderableListDifference(expected, actual):
"""Same behavior as _SortedListDifference but
for lists of unorderable items (like dicts).
As it does a linear search per item (remove) it
has O(n*n) performance."""
missing = []
while expected:
item = expected.pop()
try:
actual.remove(item)
except ValueError:
missing.append(item)
# anything left in actual is unexpected
return missing, actual
class TestSuite(object):
"""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 __init__(self, tests=()):
self._tests = []
self.addTests(tests)
def __repr__(self):
return "<%s tests=%s>" % (_strclass(self.__class__), list(self))
def __eq__(self, other):
if not isinstance(other, self.__class__):
return NotImplemented
return list(self) == list(other)
def __ne__(self, other):
return not self == other
def __iter__(self):
return iter(self._tests)
def countTestCases(self):
cases = 0
for test in self:
cases += test.countTestCases()
return cases
def addTest(self, test):
# sanity checks
if not hasattr(test, '__call__'):
raise TypeError("the test to add must be callable")
if isinstance(test, type) and issubclass(test, (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 test in self:
if result.shouldStop:
break
test(result)
return result
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 FunctionTestCase(TestCase):
"""A test case that wraps a test function.
@ -1193,608 +898,15 @@ class FunctionTestCase(TestCase):
self._testFunc, self._description))
def __str__(self):
return "%s (%s)" % (_strclass(self.__class__), self._testFunc.__name__)
return "%s (%s)" % (util.strclass(self.__class__),
self._testFunc.__name__)
def __repr__(self):
return "<%s testFunc=%s>" % (_strclass(self.__class__), self._testFunc)
return "<%s testFunc=%s>" % (util.strclass(self.__class__),
self._testFunc)
def shortDescription(self):
if self._description is not None:
return self._description
doc = self._testFunc.__doc__
return doc and doc.split("\n")[0].strip() or None
##############################################################################
# Locating and loading tests
##############################################################################
def CmpToKey(mycmp):
'Convert a cmp= function into a key= function'
class K(object):
def __init__(self, obj, *args):
self.obj = obj
def __lt__(self, other):
return mycmp(self.obj, other.obj) == -1
return K
def three_way_cmp(x, y):
"""Return -1 if x < y, 0 if x == y and 1 if x > y"""
return (x > y) - (x < y)
class TestLoader(object):
"""
This class is responsible for loading tests according to various criteria
and returning them wrapped in a TestSuite
"""
testMethodPrefix = 'test'
sortTestMethodsUsing = staticmethod(three_way_cmp)
suiteClass = TestSuite
_top_level_dir = None
def loadTestsFromTestCase(self, testCaseClass):
"""Return a suite of all tests cases contained in testCaseClass"""
if issubclass(testCaseClass, TestSuite):
raise TypeError("Test cases should not be derived from TestSuite." \
" Maybe you meant to derive from TestCase?")
testCaseNames = self.getTestCaseNames(testCaseClass)
if not testCaseNames and hasattr(testCaseClass, 'runTest'):
testCaseNames = ['runTest']
suite = self.suiteClass(map(testCaseClass, testCaseNames))
return suite
def loadTestsFromModule(self, module, use_load_tests=True):
"""Return a suite of all tests cases contained in the given module"""
tests = []
for name in dir(module):
obj = getattr(module, name)
if isinstance(obj, type) and issubclass(obj, TestCase):
tests.append(self.loadTestsFromTestCase(obj))
load_tests = getattr(module, 'load_tests', None)
if use_load_tests and load_tests is not None:
return load_tests(self, tests, None)
return self.suiteClass(tests)
def loadTestsFromName(self, name, module=None):
"""Return a suite of all tests cases given a string specifier.
The name may resolve either to a module, a test case class, a
test method within a test case class, or a callable object which
returns a TestCase or TestSuite instance.
The method optionally resolves the names relative to a given module.
"""
parts = name.split('.')
if module is None:
parts_copy = parts[:]
while parts_copy:
try:
module = __import__('.'.join(parts_copy))
break
except ImportError:
del parts_copy[-1]
if not parts_copy:
raise
parts = parts[1:]
obj = module
for part in parts:
parent, obj = obj, getattr(obj, part)
if isinstance(obj, types.ModuleType):
return self.loadTestsFromModule(obj)
elif isinstance(obj, type) and issubclass(obj, TestCase):
return self.loadTestsFromTestCase(obj)
elif (isinstance(obj, types.FunctionType) and
isinstance(parent, type) and
issubclass(parent, TestCase)):
name = obj.__name__
inst = parent(name)
# static methods follow a different path
if not isinstance(getattr(inst, name), types.FunctionType):
return TestSuite([inst])
elif isinstance(obj, TestSuite):
return obj
if hasattr(obj, '__call__'):
test = obj()
if isinstance(test, TestSuite):
return test
elif isinstance(test, TestCase):
return TestSuite([test])
else:
raise TypeError("calling %s returned %s, not a test" %
(obj, test))
else:
raise TypeError("don't know how to make test from: %s" % obj)
def loadTestsFromNames(self, names, module=None):
"""Return a suite of all tests cases found using the given sequence
of string specifiers. See 'loadTestsFromName()'.
"""
suites = [self.loadTestsFromName(name, module) for name in names]
return self.suiteClass(suites)
def getTestCaseNames(self, testCaseClass):
"""Return a sorted sequence of method names found within testCaseClass
"""
def isTestMethod(attrname, testCaseClass=testCaseClass,
prefix=self.testMethodPrefix):
return attrname.startswith(prefix) and \
hasattr(getattr(testCaseClass, attrname), '__call__')
testFnNames = list(filter(isTestMethod, dir(testCaseClass)))
if self.sortTestMethodsUsing:
testFnNames.sort(key=CmpToKey(self.sortTestMethodsUsing))
return testFnNames
def discover(self, start_dir, pattern='test*.py', top_level_dir=None):
"""Find and return all test modules from the specified start
directory, recursing into subdirectories to find them. Only test files
that match the pattern will be loaded. (Using shell style pattern
matching.)
All test modules must be importable from the top level of the project.
If the start directory is not the top level directory then the top
level directory must be specified separately.
If a test package name (directory with '__init__.py') matches the
pattern then the package will be checked for a 'load_tests' function. If
this exists then it will be called with loader, tests, pattern.
If load_tests exists then discovery does *not* recurse into the package,
load_tests is responsible for loading all tests in the package.
The pattern is deliberately not stored as a loader attribute so that
packages can continue discovery themselves. top_level_dir is stored so
load_tests does not need to pass this argument in to loader.discover().
"""
if top_level_dir is None and self._top_level_dir is not None:
# make top_level_dir optional if called from load_tests in a package
top_level_dir = self._top_level_dir
elif top_level_dir is None:
top_level_dir = start_dir
top_level_dir = os.path.abspath(os.path.normpath(top_level_dir))
start_dir = os.path.abspath(os.path.normpath(start_dir))
if not top_level_dir in sys.path:
# all test modules must be importable from the top level directory
sys.path.append(top_level_dir)
self._top_level_dir = top_level_dir
if start_dir != top_level_dir and not os.path.isfile(os.path.join(start_dir, '__init__.py')):
# what about __init__.pyc or pyo (etc)
raise ImportError('Start directory is not importable: %r' % start_dir)
tests = list(self._find_tests(start_dir, pattern))
return self.suiteClass(tests)
def _get_module_from_path(self, path):
"""Load a module from a path relative to the top-level directory
of a project. Used by discovery."""
path = os.path.splitext(os.path.normpath(path))[0]
relpath = os.path.relpath(path, self._top_level_dir)
assert not os.path.isabs(relpath), "Path must be within the project"
assert not relpath.startswith('..'), "Path must be within the project"
name = relpath.replace(os.path.sep, '.')
__import__(name)
return sys.modules[name]
def _find_tests(self, start_dir, pattern):
"""Used by discovery. Yields test suites it loads."""
paths = os.listdir(start_dir)
for path in paths:
full_path = os.path.join(start_dir, path)
# what about __init__.pyc or pyo (etc)
# we would need to avoid loading the same tests multiple times
# from '.py', '.pyc' *and* '.pyo'
if os.path.isfile(full_path) and path.lower().endswith('.py'):
if fnmatch(path, pattern):
# if the test file matches, load it
module = self._get_module_from_path(full_path)
yield self.loadTestsFromModule(module)
elif os.path.isdir(full_path):
if not os.path.isfile(os.path.join(full_path, '__init__.py')):
continue
load_tests = None
tests = None
if fnmatch(path, pattern):
# only check load_tests if the package directory itself matches the filter
package = self._get_module_from_path(full_path)
load_tests = getattr(package, 'load_tests', None)
tests = self.loadTestsFromModule(package, use_load_tests=False)
if load_tests is None:
if tests is not None:
# tests loaded from package file
yield tests
# recurse into the package
for test in self._find_tests(full_path, pattern):
yield test
else:
yield load_tests(self, tests, pattern)
defaultTestLoader = TestLoader()
##############################################################################
# Patches for old functions: these functions should be considered obsolete
##############################################################################
def _makeLoader(prefix, sortUsing, suiteClass=None):
loader = TestLoader()
loader.sortTestMethodsUsing = sortUsing
loader.testMethodPrefix = prefix
if suiteClass: loader.suiteClass = suiteClass
return loader
def getTestCaseNames(testCaseClass, prefix, sortUsing=three_way_cmp):
return _makeLoader(prefix, sortUsing).getTestCaseNames(testCaseClass)
def makeSuite(testCaseClass, prefix='test', sortUsing=three_way_cmp,
suiteClass=TestSuite):
return _makeLoader(prefix, sortUsing, suiteClass).loadTestsFromTestCase(
testCaseClass)
def findTestCases(module, prefix='test', sortUsing=three_way_cmp,
suiteClass=TestSuite):
return _makeLoader(prefix, sortUsing, suiteClass).loadTestsFromModule(
module)
##############################################################################
# Text UI
##############################################################################
class _WritelnDecorator(object):
"""Used to decorate file-like objects with a handy 'writeln' method"""
def __init__(self,stream):
self.stream = stream
def __getattr__(self, attr):
return getattr(self.stream,attr)
def writeln(self, arg=None):
if arg:
self.write(arg)
self.write('\n') # text-mode streams translate to \r\n if needed
class _TextTestResult(TestResult):
"""A test result class that can print formatted text results to a stream.
Used by TextTestRunner.
"""
separator1 = '=' * 70
separator2 = '-' * 70
def __init__(self, stream, descriptions, verbosity):
super(_TextTestResult, self).__init__()
self.stream = stream
self.showAll = verbosity > 1
self.dots = verbosity == 1
self.descriptions = descriptions
def getDescription(self, test):
if self.descriptions:
return test.shortDescription() or str(test)
else:
return str(test)
def startTest(self, test):
super(_TextTestResult, self).startTest(test)
if self.showAll:
self.stream.write(self.getDescription(test))
self.stream.write(" ... ")
self.stream.flush()
def addSuccess(self, test):
super(_TextTestResult, self).addSuccess(test)
if self.showAll:
self.stream.writeln("ok")
elif self.dots:
self.stream.write('.')
self.stream.flush()
def addError(self, test, err):
super(_TextTestResult, self).addError(test, err)
if self.showAll:
self.stream.writeln("ERROR")
elif self.dots:
self.stream.write('E')
self.stream.flush()
def addFailure(self, test, err):
super(_TextTestResult, self).addFailure(test, err)
if self.showAll:
self.stream.writeln("FAIL")
elif self.dots:
self.stream.write('F')
self.stream.flush()
def addSkip(self, test, reason):
super(_TextTestResult, self).addSkip(test, reason)
if self.showAll:
self.stream.writeln("skipped {0!r}".format(reason))
elif self.dots:
self.stream.write("s")
self.stream.flush()
def addExpectedFailure(self, test, err):
super(_TextTestResult, self).addExpectedFailure(test, err)
if self.showAll:
self.stream.writeln("expected failure")
elif self.dots:
self.stream.write("x")
self.stream.flush()
def addUnexpectedSuccess(self, test):
super(_TextTestResult, self).addUnexpectedSuccess(test)
if self.showAll:
self.stream.writeln("unexpected success")
elif self.dots:
self.stream.write("u")
self.stream.flush()
def printErrors(self):
if self.dots or self.showAll:
self.stream.writeln()
self.printErrorList('ERROR', self.errors)
self.printErrorList('FAIL', self.failures)
def printErrorList(self, flavour, errors):
for test, err in errors:
self.stream.writeln(self.separator1)
self.stream.writeln("%s: %s" % (flavour,self.getDescription(test)))
self.stream.writeln(self.separator2)
self.stream.writeln("%s" % err)
class TextTestRunner(object):
"""A test runner class that displays results in textual form.
It prints out the names of tests as they are run, errors as they
occur, and a summary of the results at the end of the test run.
"""
def __init__(self, stream=sys.stderr, descriptions=1, verbosity=1):
self.stream = _WritelnDecorator(stream)
self.descriptions = descriptions
self.verbosity = verbosity
def _makeResult(self):
return _TextTestResult(self.stream, self.descriptions, self.verbosity)
def run(self, test):
"Run the given test case or test suite."
result = self._makeResult()
startTime = time.time()
startTestRun = getattr(result, 'startTestRun', None)
if startTestRun is not None:
startTestRun()
try:
test(result)
finally:
stopTestRun = getattr(result, 'stopTestRun', None)
if stopTestRun is not None:
stopTestRun()
stopTime = time.time()
timeTaken = stopTime - startTime
result.printErrors()
self.stream.writeln(result.separator2)
run = result.testsRun
self.stream.writeln("Ran %d test%s in %.3fs" %
(run, run != 1 and "s" or "", timeTaken))
self.stream.writeln()
results = map(len, (result.expectedFailures,
result.unexpectedSuccesses,
result.skipped))
expectedFails, unexpectedSuccesses, skipped = results
infos = []
if not result.wasSuccessful():
self.stream.write("FAILED")
failed, errored = len(result.failures), len(result.errors)
if failed:
infos.append("failures=%d" % failed)
if errored:
infos.append("errors=%d" % errored)
else:
self.stream.write("OK")
if skipped:
infos.append("skipped=%d" % skipped)
if expectedFails:
infos.append("expected failures=%d" % expectedFails)
if unexpectedSuccesses:
infos.append("unexpected successes=%d" % unexpectedSuccesses)
if infos:
self.stream.writeln(" (%s)" % (", ".join(infos),))
else:
self.stream.write("\n")
return result
##############################################################################
# Facilities for running tests from the command line
##############################################################################
USAGE_AS_MAIN = """\
Usage: %(progName)s [options] [tests]
Options:
-h, --help Show this message
-v, --verbose Verbose output
-q, --quiet Minimal output
Examples:
%(progName)s test_module - run tests from test_module
%(progName)s test_module.TestClass - run tests from
test_module.TestClass
%(progName)s test_module.TestClass.test_method - run specified test method
[tests] can be a list of any number of test modules, classes and test
methods.
Alternative Usage: %(progName)s discover [options]
Options:
-v, --verbose Verbose output
-s directory Directory to start discovery ('.' default)
-p pattern Pattern to match test files ('test*.py' default)
-t directory Top level directory of project (default to
start directory)
For test discovery all test modules must be importable from the top
level directory of the project.
"""
USAGE_FROM_MODULE = """\
Usage: %(progName)s [options] [test] [...]
Options:
-h, --help Show this message
-v, --verbose Verbose output
-q, --quiet Minimal output
Examples:
%(progName)s - run default set of tests
%(progName)s MyTestSuite - run suite 'MyTestSuite'
%(progName)s MyTestCase.testSomething - run MyTestCase.testSomething
%(progName)s MyTestCase - run all 'test*' test methods
in MyTestCase
"""
if __name__ == '__main__':
USAGE = USAGE_AS_MAIN
else:
USAGE = USAGE_FROM_MODULE
class TestProgram(object):
"""A command-line program that runs a set of tests; this is primarily
for making test modules conveniently executable.
"""
USAGE = USAGE
def __init__(self, module='__main__', defaultTest=None,
argv=None, testRunner=None,
testLoader=defaultTestLoader, exit=True,
verbosity=1):
if isinstance(module, str):
self.module = __import__(module)
for part in module.split('.')[1:]:
self.module = getattr(self.module, part)
else:
self.module = module
if argv is None:
argv = sys.argv
self.exit = exit
self.verbosity = verbosity
self.defaultTest = defaultTest
self.testRunner = testRunner
self.testLoader = testLoader
self.progName = os.path.basename(argv[0])
self.parseArgs(argv)
self.runTests()
def usageExit(self, msg=None):
if msg:
print(msg)
print(self.USAGE % self.__dict__)
sys.exit(2)
def parseArgs(self, argv):
if len(argv) > 1 and argv[1].lower() == 'discover':
self._do_discovery(argv[2:])
return
import getopt
long_opts = ['help','verbose','quiet']
try:
options, args = getopt.getopt(argv[1:], 'hHvq', long_opts)
for opt, value in options:
if opt in ('-h','-H','--help'):
self.usageExit()
if opt in ('-q','--quiet'):
self.verbosity = 0
if opt in ('-v','--verbose'):
self.verbosity = 2
if len(args) == 0 and self.defaultTest is None:
self.test = self.testLoader.loadTestsFromModule(self.module)
return
if len(args) > 0:
self.testNames = args
if __name__ == '__main__':
# to support python -m unittest ...
self.module = None
else:
self.testNames = (self.defaultTest,)
self.createTests()
except getopt.error as msg:
self.usageExit(msg)
def createTests(self):
self.test = self.testLoader.loadTestsFromNames(self.testNames,
self.module)
def _do_discovery(self, argv, Loader=TestLoader):
# handle command line args for test discovery
import optparse
parser = optparse.OptionParser()
parser.add_option('-v', '--verbose', dest='verbose', default=False,
help='Verbose output', action='store_true')
parser.add_option('-s', '--start-directory', dest='start', default='.',
help="Directory to start discovery ('.' default)")
parser.add_option('-p', '--pattern', dest='pattern', default='test*.py',
help="Pattern to match tests ('test*.py' default)")
parser.add_option('-t', '--top-level-directory', dest='top', default=None,
help='Top level directory of project (defaults to start directory)')
options, args = parser.parse_args(argv)
if len(args) > 3:
self.usageExit()
for name, value in zip(('start', 'pattern', 'top'), args):
setattr(options, name, value)
if options.verbose:
self.verbosity = 2
start_dir = options.start
pattern = options.pattern
top_level_dir = options.top
loader = Loader()
self.test = loader.discover(start_dir, pattern, top_level_dir)
def runTests(self):
if self.testRunner is None:
self.testRunner = TextTestRunner
if isinstance(self.testRunner, type):
try:
testRunner = self.testRunner(verbosity=self.verbosity)
except TypeError:
# didn't accept the verbosity argument
testRunner = self.testRunner()
else:
# it is assumed to be a TestRunner instance
testRunner = self.testRunner
self.result = testRunner.run(self.test)
if self.exit:
sys.exit(not self.result.wasSuccessful())
main = TestProgram
##############################################################################
# Executing this module from the command line
##############################################################################
if __name__ == "__main__":
sys.modules['unittest'] = sys.modules['__main__']
main(module=None)

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"""Loading unittests."""
import os
import sys
import types
from fnmatch import fnmatch
from . import case, suite, util
class TestLoader(object):
"""
This class is responsible for loading tests according to various criteria
and returning them wrapped in a TestSuite
"""
testMethodPrefix = 'test'
sortTestMethodsUsing = staticmethod(util.three_way_cmp)
suiteClass = suite.TestSuite
_top_level_dir = None
def loadTestsFromTestCase(self, testCaseClass):
"""Return a suite of all tests cases contained in testCaseClass"""
if issubclass(testCaseClass, suite.TestSuite):
raise TypeError("Test cases should not be derived from TestSuite." \
" Maybe you meant to derive from TestCase?")
testCaseNames = self.getTestCaseNames(testCaseClass)
if not testCaseNames and hasattr(testCaseClass, 'runTest'):
testCaseNames = ['runTest']
loaded_suite = self.suiteClass(map(testCaseClass, testCaseNames))
return loaded_suite
def loadTestsFromModule(self, module, use_load_tests=True):
"""Return a suite of all tests cases contained in the given module"""
tests = []
for name in dir(module):
obj = getattr(module, name)
if isinstance(obj, type) and issubclass(obj, case.TestCase):
tests.append(self.loadTestsFromTestCase(obj))
load_tests = getattr(module, 'load_tests', None)
if use_load_tests and load_tests is not None:
return load_tests(self, tests, None)
return self.suiteClass(tests)
def loadTestsFromName(self, name, module=None):
"""Return a suite of all tests cases given a string specifier.
The name may resolve either to a module, a test case class, a
test method within a test case class, or a callable object which
returns a TestCase or TestSuite instance.
The method optionally resolves the names relative to a given module.
"""
parts = name.split('.')
if module is None:
parts_copy = parts[:]
while parts_copy:
try:
module = __import__('.'.join(parts_copy))
break
except ImportError:
del parts_copy[-1]
if not parts_copy:
raise
parts = parts[1:]
obj = module
for part in parts:
parent, obj = obj, getattr(obj, part)
if isinstance(obj, types.ModuleType):
return self.loadTestsFromModule(obj)
elif isinstance(obj, type) and issubclass(obj, case.TestCase):
return self.loadTestsFromTestCase(obj)
elif (isinstance(obj, types.FunctionType) and
isinstance(parent, type) and
issubclass(parent, case.TestCase)):
name = obj.__name__
inst = parent(name)
# static methods follow a different path
if not isinstance(getattr(inst, name), types.FunctionType):
return suite.TestSuite([inst])
elif isinstance(obj, suite.TestSuite):
return obj
if hasattr(obj, '__call__'):
test = obj()
if isinstance(test, suite.TestSuite):
return test
elif isinstance(test, case.TestCase):
return suite.TestSuite([test])
else:
raise TypeError("calling %s returned %s, not a test" %
(obj, test))
else:
raise TypeError("don't know how to make test from: %s" % obj)
def loadTestsFromNames(self, names, module=None):
"""Return a suite of all tests cases found using the given sequence
of string specifiers. See 'loadTestsFromName()'.
"""
suites = [self.loadTestsFromName(name, module) for name in names]
return self.suiteClass(suites)
def getTestCaseNames(self, testCaseClass):
"""Return a sorted sequence of method names found within testCaseClass
"""
def isTestMethod(attrname, testCaseClass=testCaseClass,
prefix=self.testMethodPrefix):
return attrname.startswith(prefix) and \
hasattr(getattr(testCaseClass, attrname), '__call__')
testFnNames = testFnNames = list(filter(isTestMethod,
dir(testCaseClass)))
if self.sortTestMethodsUsing:
testFnNames.sort(key=util.CmpToKey(self.sortTestMethodsUsing))
return testFnNames
def discover(self, start_dir, pattern='test*.py', top_level_dir=None):
"""Find and return all test modules from the specified start
directory, recursing into subdirectories to find them. Only test files
that match the pattern will be loaded. (Using shell style pattern
matching.)
All test modules must be importable from the top level of the project.
If the start directory is not the top level directory then the top
level directory must be specified separately.
If a test package name (directory with '__init__.py') matches the
pattern then the package will be checked for a 'load_tests' function. If
this exists then it will be called with loader, tests, pattern.
If load_tests exists then discovery does *not* recurse into the package,
load_tests is responsible for loading all tests in the package.
The pattern is deliberately not stored as a loader attribute so that
packages can continue discovery themselves. top_level_dir is stored so
load_tests does not need to pass this argument in to loader.discover().
"""
if top_level_dir is None and self._top_level_dir is not None:
# make top_level_dir optional if called from load_tests in a package
top_level_dir = self._top_level_dir
elif top_level_dir is None:
top_level_dir = start_dir
top_level_dir = os.path.abspath(os.path.normpath(top_level_dir))
start_dir = os.path.abspath(os.path.normpath(start_dir))
if not top_level_dir in sys.path:
# all test modules must be importable from the top level directory
sys.path.append(top_level_dir)
self._top_level_dir = top_level_dir
if start_dir != top_level_dir and not os.path.isfile(os.path.join(start_dir, '__init__.py')):
# what about __init__.pyc or pyo (etc)
raise ImportError('Start directory is not importable: %r' % start_dir)
tests = list(self._find_tests(start_dir, pattern))
return self.suiteClass(tests)
def _get_module_from_path(self, path):
"""Load a module from a path relative to the top-level directory
of a project. Used by discovery."""
path = os.path.splitext(os.path.normpath(path))[0]
relpath = os.path.relpath(path, self._top_level_dir)
assert not os.path.isabs(relpath), "Path must be within the project"
assert not relpath.startswith('..'), "Path must be within the project"
name = relpath.replace(os.path.sep, '.')
__import__(name)
return sys.modules[name]
def _find_tests(self, start_dir, pattern):
"""Used by discovery. Yields test suites it loads."""
paths = os.listdir(start_dir)
for path in paths:
full_path = os.path.join(start_dir, path)
# what about __init__.pyc or pyo (etc)
# we would need to avoid loading the same tests multiple times
# from '.py', '.pyc' *and* '.pyo'
if os.path.isfile(full_path) and path.lower().endswith('.py'):
if fnmatch(path, pattern):
# if the test file matches, load it
module = self._get_module_from_path(full_path)
yield self.loadTestsFromModule(module)
elif os.path.isdir(full_path):
if not os.path.isfile(os.path.join(full_path, '__init__.py')):
continue
load_tests = None
tests = None
if fnmatch(path, pattern):
# only check load_tests if the package directory itself matches the filter
package = self._get_module_from_path(full_path)
load_tests = getattr(package, 'load_tests', None)
tests = self.loadTestsFromModule(package, use_load_tests=False)
if load_tests is None:
if tests is not None:
# tests loaded from package file
yield tests
# recurse into the package
for test in self._find_tests(full_path, pattern):
yield test
else:
yield load_tests(self, tests, pattern)
defaultTestLoader = TestLoader()
def _makeLoader(prefix, sortUsing, suiteClass=None):
loader = TestLoader()
loader.sortTestMethodsUsing = sortUsing
loader.testMethodPrefix = prefix
if suiteClass:
loader.suiteClass = suiteClass
return loader
def getTestCaseNames(testCaseClass, prefix, sortUsing=util.three_way_cmp):
return _makeLoader(prefix, sortUsing).getTestCaseNames(testCaseClass)
def makeSuite(testCaseClass, prefix='test', sortUsing=util.three_way_cmp,
suiteClass=suite.TestSuite):
return _makeLoader(prefix, sortUsing, suiteClass).loadTestsFromTestCase(
testCaseClass)
def findTestCases(module, prefix='test', sortUsing=util.three_way_cmp,
suiteClass=suite.TestSuite):
return _makeLoader(prefix, sortUsing, suiteClass).loadTestsFromModule(\
module)

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"""Unittest main program"""
import sys
import os
import types
from . import loader, runner
USAGE_AS_MAIN = """\
Usage: %(progName)s [options] [tests]
Options:
-h, --help Show this message
-v, --verbose Verbose output
-q, --quiet Minimal output
Examples:
%(progName)s test_module - run tests from test_module
%(progName)s test_module.TestClass - run tests from
test_module.TestClass
%(progName)s test_module.TestClass.test_method - run specified test method
[tests] can be a list of any number of test modules, classes and test
methods.
Alternative Usage: %(progName)s discover [options]
Options:
-v, --verbose Verbose output
-s directory Directory to start discovery ('.' default)
-p pattern Pattern to match test files ('test*.py' default)
-t directory Top level directory of project (default to
start directory)
For test discovery all test modules must be importable from the top
level directory of the project.
"""
USAGE_FROM_MODULE = """\
Usage: %(progName)s [options] [test] [...]
Options:
-h, --help Show this message
-v, --verbose Verbose output
-q, --quiet Minimal output
Examples:
%(progName)s - run default set of tests
%(progName)s MyTestSuite - run suite 'MyTestSuite'
%(progName)s MyTestCase.testSomething - run MyTestCase.testSomething
%(progName)s MyTestCase - run all 'test*' test methods
in MyTestCase
"""
if __name__ == '__main__':
USAGE = USAGE_AS_MAIN
else:
USAGE = USAGE_FROM_MODULE
class TestProgram(object):
"""A command-line program that runs a set of tests; this is primarily
for making test modules conveniently executable.
"""
USAGE = USAGE
def __init__(self, module='__main__', defaultTest=None,
argv=None, testRunner=None,
testLoader=loader.defaultTestLoader, exit=True,
verbosity=1):
if isinstance(module, str):
self.module = __import__(module)
for part in module.split('.')[1:]:
self.module = getattr(self.module, part)
else:
self.module = module
if argv is None:
argv = sys.argv
self.exit = exit
self.verbosity = verbosity
self.defaultTest = defaultTest
self.testRunner = testRunner
self.testLoader = testLoader
self.progName = os.path.basename(argv[0])
self.parseArgs(argv)
self.runTests()
def usageExit(self, msg=None):
if msg:
print(msg)
print(self.USAGE % self.__dict__)
sys.exit(2)
def parseArgs(self, argv):
if len(argv) > 1 and argv[1].lower() == 'discover':
self._do_discovery(argv[2:])
return
import getopt
long_opts = ['help','verbose','quiet']
try:
options, args = getopt.getopt(argv[1:], 'hHvq', long_opts)
for opt, value in options:
if opt in ('-h','-H','--help'):
self.usageExit()
if opt in ('-q','--quiet'):
self.verbosity = 0
if opt in ('-v','--verbose'):
self.verbosity = 2
if len(args) == 0 and self.defaultTest is None:
self.test = self.testLoader.loadTestsFromModule(self.module)
return
if len(args) > 0:
self.testNames = args
if __name__ == '__main__':
# to support python -m unittest ...
self.module = None
else:
self.testNames = (self.defaultTest,)
self.createTests()
except getopt.error as msg:
self.usageExit(msg)
def createTests(self):
self.test = self.testLoader.loadTestsFromNames(self.testNames,
self.module)
def _do_discovery(self, argv, Loader=loader.TestLoader):
# handle command line args for test discovery
import optparse
parser = optparse.OptionParser()
parser.add_option('-v', '--verbose', dest='verbose', default=False,
help='Verbose output', action='store_true')
parser.add_option('-s', '--start-directory', dest='start', default='.',
help="Directory to start discovery ('.' default)")
parser.add_option('-p', '--pattern', dest='pattern', default='test*.py',
help="Pattern to match tests ('test*.py' default)")
parser.add_option('-t', '--top-level-directory', dest='top', default=None,
help='Top level directory of project (defaults to start directory)')
options, args = parser.parse_args(argv)
if len(args) > 3:
self.usageExit()
for name, value in zip(('start', 'pattern', 'top'), args):
setattr(options, name, value)
if options.verbose:
self.verbosity = 2
start_dir = options.start
pattern = options.pattern
top_level_dir = options.top
loader = Loader()
self.test = loader.discover(start_dir, pattern, top_level_dir)
def runTests(self):
if self.testRunner is None:
self.testRunner = runner.TextTestRunner
if isinstance(self.testRunner, type):
try:
testRunner = self.testRunner(verbosity=self.verbosity)
except TypeError:
# didn't accept the verbosity argument
testRunner = self.testRunner()
else:
# it is assumed to be a TestRunner instance
testRunner = self.testRunner
self.result = testRunner.run(self.test)
if self.exit:
sys.exit(not self.result.wasSuccessful())
main = TestProgram

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Lib/unittest/result.py Normal file
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"""Test result object"""
import traceback
from . import util
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.
"""
def __init__(self):
self.failures = []
self.errors = []
self.testsRun = 0
self.skipped = []
self.expectedFailures = []
self.unexpectedSuccesses = []
self.shouldStop = False
def startTest(self, test):
"Called when the given test is about to be run"
self.testsRun = self.testsRun + 1
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"
pass
def stopTestRun(self):
"""Called once after all tests are executed.
See stopTest for a method called after each test.
"""
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)))
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)))
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)))
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"
return len(self.failures) == len(self.errors) == 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)
return ''.join(traceback.format_exception(exctype, value, tb, length))
return ''.join(traceback.format_exception(exctype, value, tb))
def _is_relevant_tb_level(self, tb):
globs = tb.tb_frame.f_globals
is_relevant = '__name__' in globs and \
globs["__name__"].startswith("unittest")
del globs
return is_relevant
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))

172
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"""Running tests"""
import sys
import time
from . import result
class _WritelnDecorator(object):
"""Used to decorate file-like objects with a handy 'writeln' method"""
def __init__(self,stream):
self.stream = stream
def __getattr__(self, attr):
return getattr(self.stream,attr)
def writeln(self, arg=None):
if arg:
self.write(arg)
self.write('\n') # text-mode streams translate to \r\n if needed
class _TextTestResult(result.TestResult):
"""A test result class that can print formatted text results to a stream.
Used by TextTestRunner.
"""
separator1 = '=' * 70
separator2 = '-' * 70
def __init__(self, stream, descriptions, verbosity):
super(_TextTestResult, self).__init__()
self.stream = stream
self.showAll = verbosity > 1
self.dots = verbosity == 1
self.descriptions = descriptions
def getDescription(self, test):
if self.descriptions:
return test.shortDescription() or str(test)
else:
return str(test)
def startTest(self, test):
super(_TextTestResult, self).startTest(test)
if self.showAll:
self.stream.write(self.getDescription(test))
self.stream.write(" ... ")
self.stream.flush()
def addSuccess(self, test):
super(_TextTestResult, self).addSuccess(test)
if self.showAll:
self.stream.writeln("ok")
elif self.dots:
self.stream.write('.')
self.stream.flush()
def addError(self, test, err):
super(_TextTestResult, self).addError(test, err)
if self.showAll:
self.stream.writeln("ERROR")
elif self.dots:
self.stream.write('E')
self.stream.flush()
def addFailure(self, test, err):
super(_TextTestResult, self).addFailure(test, err)
if self.showAll:
self.stream.writeln("FAIL")
elif self.dots:
self.stream.write('F')
self.stream.flush()
def addSkip(self, test, reason):
super(_TextTestResult, self).addSkip(test, reason)
if self.showAll:
self.stream.writeln("skipped {0!r}".format(reason))
elif self.dots:
self.stream.write("s")
self.stream.flush()
def addExpectedFailure(self, test, err):
super(_TextTestResult, self).addExpectedFailure(test, err)
if self.showAll:
self.stream.writeln("expected failure")
elif self.dots:
self.stream.write("x")
self.stream.flush()
def addUnexpectedSuccess(self, test):
super(_TextTestResult, self).addUnexpectedSuccess(test)
if self.showAll:
self.stream.writeln("unexpected success")
elif self.dots:
self.stream.write("u")
self.stream.flush()
def printErrors(self):
if self.dots or self.showAll:
self.stream.writeln()
self.printErrorList('ERROR', self.errors)
self.printErrorList('FAIL', self.failures)
def printErrorList(self, flavour, errors):
for test, err in errors:
self.stream.writeln(self.separator1)
self.stream.writeln("%s: %s" % (flavour,self.getDescription(test)))
self.stream.writeln(self.separator2)
self.stream.writeln("%s" % err)
class TextTestRunner(object):
"""A test runner class that displays results in textual form.
It prints out the names of tests as they are run, errors as they
occur, and a summary of the results at the end of the test run.
"""
def __init__(self, stream=sys.stderr, descriptions=1, verbosity=1):
self.stream = _WritelnDecorator(stream)
self.descriptions = descriptions
self.verbosity = verbosity
def _makeResult(self):
return _TextTestResult(self.stream, self.descriptions, self.verbosity)
def run(self, test):
"Run the given test case or test suite."
result = self._makeResult()
startTime = time.time()
startTestRun = getattr(result, 'startTestRun', None)
if startTestRun is not None:
startTestRun()
try:
test(result)
finally:
stopTestRun = getattr(result, 'stopTestRun', None)
if stopTestRun is not None:
stopTestRun()
stopTime = time.time()
timeTaken = stopTime - startTime
result.printErrors()
self.stream.writeln(result.separator2)
run = result.testsRun
self.stream.writeln("Ran %d test%s in %.3fs" %
(run, run != 1 and "s" or "", timeTaken))
self.stream.writeln()
results = map(len, (result.expectedFailures,
result.unexpectedSuccesses,
result.skipped))
expectedFails, unexpectedSuccesses, skipped = results
infos = []
if not result.wasSuccessful():
self.stream.write("FAILED")
failed, errored = len(result.failures), len(result.errors)
if failed:
infos.append("failures=%d" % failed)
if errored:
infos.append("errors=%d" % errored)
else:
self.stream.write("OK")
if skipped:
infos.append("skipped=%d" % skipped)
if expectedFails:
infos.append("expected failures=%d" % expectedFails)
if unexpectedSuccesses:
infos.append("unexpected successes=%d" % unexpectedSuccesses)
if infos:
self.stream.writeln(" (%s)" % (", ".join(infos),))
else:
self.stream.write("\n")
return result

68
Lib/unittest/suite.py Normal file
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"""TestSuite"""
from . import case
class TestSuite(object):
"""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 __init__(self, tests=()):
self._tests = []
self.addTests(tests)
def __repr__(self):
return "<%s tests=%s>" % (_strclass(self.__class__), list(self))
def __eq__(self, other):
if not isinstance(other, self.__class__):
return NotImplemented
return list(self) == list(other)
def __ne__(self, other):
return not self == other
def __iter__(self):
return iter(self._tests)
def countTestCases(self):
cases = 0
for test in self:
cases += test.countTestCases()
return cases
def addTest(self, test):
# sanity checks
if not hasattr(test, '__call__'):
raise TypeError("the test to add must be callable")
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 test in self:
if result.shouldStop:
break
test(result)
return result
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()

75
Lib/unittest/util.py Normal file
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@ -0,0 +1,75 @@
"""Various utility functions."""
def strclass(cls):
return "%s.%s" % (cls.__module__, cls.__name__)
def sorted_list_difference(expected, actual):
"""Finds elements in only one or the other of two, sorted input lists.
Returns a two-element tuple of lists. The first list contains those
elements in the "expected" list but not in the "actual" list, and the
second contains those elements in the "actual" list but not in the
"expected" list. Duplicate elements in either input list are ignored.
"""
i = j = 0
missing = []
unexpected = []
while True:
try:
e = expected[i]
a = actual[j]
if e < a:
missing.append(e)
i += 1
while expected[i] == e:
i += 1
elif e > a:
unexpected.append(a)
j += 1
while actual[j] == a:
j += 1
else:
i += 1
try:
while expected[i] == e:
i += 1
finally:
j += 1
while actual[j] == a:
j += 1
except IndexError:
missing.extend(expected[i:])
unexpected.extend(actual[j:])
break
return missing, unexpected
def unorderable_list_difference(expected, actual):
"""Same behavior as sorted_list_difference but
for lists of unorderable items (like dicts).
As it does a linear search per item (remove) it
has O(n*n) performance."""
missing = []
while expected:
item = expected.pop()
try:
actual.remove(item)
except ValueError:
missing.append(item)
# anything left in actual is unexpected
return missing, actual
def CmpToKey(mycmp):
'Convert a cmp= function into a key= function'
class K(object):
def __init__(self, obj, *args):
self.obj = obj
def __lt__(self, other):
return mycmp(self.obj, other.obj) == -1
return K
def three_way_cmp(x, y):
"""Return -1 if x < y, 0 if x == y and 1 if x > y"""
return (x > y) - (x < y)

2
Misc/NEWS
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@ -910,6 +910,8 @@ Core and Builtins
Library
-------
- unittest has been split up into a package. All old names should still work.
- Issue #6466: now distutils.cygwinccompiler and distutils.emxccompiler
uses the same refactored function to get gcc/ld/dllwrap versions numbers.
It's `distutils.util.get_compiler_versions`. Added deprecation warnings