mirror of https://github.com/python/cpython
914 lines
34 KiB
Python
914 lines
34 KiB
Python
"""Test case implementation"""
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import sys
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import functools
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import difflib
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import pprint
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import re
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import warnings
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from . import result, util
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class SkipTest(Exception):
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"""
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Raise this exception in a test to skip it.
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Usually you can use TestResult.skip() or one of the skipping decorators
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instead of raising this directly.
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"""
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pass
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class _ExpectedFailure(Exception):
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"""
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Raise this when a test is expected to fail.
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This is an implementation detail.
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"""
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def __init__(self, exc_info):
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super(_ExpectedFailure, self).__init__()
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self.exc_info = exc_info
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class _UnexpectedSuccess(Exception):
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"""
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The test was supposed to fail, but it didn't!
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"""
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pass
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def _id(obj):
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return obj
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def skip(reason):
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"""
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Unconditionally skip a test.
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"""
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def decorator(test_item):
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if isinstance(test_item, type) and issubclass(test_item, TestCase):
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test_item.__unittest_skip__ = True
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test_item.__unittest_skip_why__ = reason
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return test_item
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@functools.wraps(test_item)
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def skip_wrapper(*args, **kwargs):
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raise SkipTest(reason)
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return skip_wrapper
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return decorator
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def skipIf(condition, reason):
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"""
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Skip a test if the condition is true.
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"""
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if condition:
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return skip(reason)
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return _id
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def skipUnless(condition, reason):
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"""
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Skip a test unless the condition is true.
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"""
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if not condition:
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return skip(reason)
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return _id
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def expectedFailure(func):
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@functools.wraps(func)
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def wrapper(*args, **kwargs):
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try:
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func(*args, **kwargs)
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except Exception:
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raise _ExpectedFailure(sys.exc_info())
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raise _UnexpectedSuccess
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return wrapper
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class _AssertRaisesContext(object):
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"""A context manager used to implement TestCase.assertRaises* methods."""
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def __init__(self, expected, test_case, expected_regexp=None):
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self.expected = expected
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self.failureException = test_case.failureException
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self.expected_regex = expected_regexp
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def __enter__(self):
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pass
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def __exit__(self, exc_type, exc_value, tb):
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if exc_type is None:
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try:
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exc_name = self.expected.__name__
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except AttributeError:
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exc_name = str(self.expected)
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raise self.failureException(
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"{0} not raised".format(exc_name))
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if not issubclass(exc_type, self.expected):
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# let unexpected exceptions pass through
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return False
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self.exc_value = exc_value #store for later retrieval
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if self.expected_regex is None:
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return True
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expected_regexp = self.expected_regex
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if isinstance(expected_regexp, basestring):
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expected_regexp = re.compile(expected_regexp)
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if not expected_regexp.search(str(exc_value)):
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raise self.failureException('"%s" does not match "%s"' %
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(expected_regexp.pattern, str(exc_value)))
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return True
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class TestCase(object):
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"""A class whose instances are single test cases.
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By default, the test code itself should be placed in a method named
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'runTest'.
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If the fixture may be used for many test cases, create as
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many test methods as are needed. When instantiating such a TestCase
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subclass, specify in the constructor arguments the name of the test method
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that the instance is to execute.
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Test authors should subclass TestCase for their own tests. Construction
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and deconstruction of the test's environment ('fixture') can be
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implemented by overriding the 'setUp' and 'tearDown' methods respectively.
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If it is necessary to override the __init__ method, the base class
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__init__ method must always be called. It is important that subclasses
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should not change the signature of their __init__ method, since instances
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of the classes are instantiated automatically by parts of the framework
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in order to be run.
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"""
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# This attribute determines which exception will be raised when
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# the instance's assertion methods fail; test methods raising this
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# exception will be deemed to have 'failed' rather than 'errored'
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failureException = AssertionError
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# This attribute determines whether long messages (including repr of
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# objects used in assert methods) will be printed on failure in *addition*
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# to any explicit message passed.
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longMessage = False
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def __init__(self, methodName='runTest'):
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"""Create an instance of the class that will use the named test
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method when executed. Raises a ValueError if the instance does
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not have a method with the specified name.
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"""
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self._testMethodName = methodName
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self._resultForDoCleanups = None
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try:
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testMethod = getattr(self, methodName)
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except AttributeError:
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raise ValueError("no such test method in %s: %s" % \
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(self.__class__, methodName))
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self._testMethodDoc = testMethod.__doc__
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self._cleanups = []
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# Map types to custom assertEqual functions that will compare
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# instances of said type in more detail to generate a more useful
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# error message.
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self._type_equality_funcs = {}
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self.addTypeEqualityFunc(dict, self.assertDictEqual)
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self.addTypeEqualityFunc(list, self.assertListEqual)
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self.addTypeEqualityFunc(tuple, self.assertTupleEqual)
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self.addTypeEqualityFunc(set, self.assertSetEqual)
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self.addTypeEqualityFunc(frozenset, self.assertSetEqual)
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def addTypeEqualityFunc(self, typeobj, function):
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"""Add a type specific assertEqual style function to compare a type.
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This method is for use by TestCase subclasses that need to register
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their own type equality functions to provide nicer error messages.
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Args:
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typeobj: The data type to call this function on when both values
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are of the same type in assertEqual().
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function: The callable taking two arguments and an optional
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msg= argument that raises self.failureException with a
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useful error message when the two arguments are not equal.
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"""
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self._type_equality_funcs[typeobj] = function
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def addCleanup(self, function, *args, **kwargs):
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"""Add a function, with arguments, to be called when the test is
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completed. Functions added are called on a LIFO basis and are
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called after tearDown on test failure or success.
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Cleanup items are called even if setUp fails (unlike tearDown)."""
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self._cleanups.append((function, args, kwargs))
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def setUp(self):
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"Hook method for setting up the test fixture before exercising it."
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pass
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def tearDown(self):
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"Hook method for deconstructing the test fixture after testing it."
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pass
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def countTestCases(self):
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return 1
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def defaultTestResult(self):
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return result.TestResult()
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def shortDescription(self):
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"""Returns both the test method name and first line of its docstring.
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If no docstring is given, only returns the method name.
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This method overrides unittest.TestCase.shortDescription(), which
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only returns the first line of the docstring, obscuring the name
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of the test upon failure.
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"""
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desc = str(self)
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doc_first_line = None
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if self._testMethodDoc:
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doc_first_line = self._testMethodDoc.split("\n")[0].strip()
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if doc_first_line:
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desc = '\n'.join((desc, doc_first_line))
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return desc
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def id(self):
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return "%s.%s" % (util.strclass(self.__class__), self._testMethodName)
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def __eq__(self, other):
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if type(self) is not type(other):
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return NotImplemented
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return self._testMethodName == other._testMethodName
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def __ne__(self, other):
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return not self == other
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def __hash__(self):
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return hash((type(self), self._testMethodName))
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def __str__(self):
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return "%s (%s)" % (self._testMethodName, util.strclass(self.__class__))
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def __repr__(self):
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return "<%s testMethod=%s>" % \
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(util.strclass(self.__class__), self._testMethodName)
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def run(self, result=None):
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orig_result = result
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if result is None:
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result = self.defaultTestResult()
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startTestRun = getattr(result, 'startTestRun', None)
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if startTestRun is not None:
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startTestRun()
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self._resultForDoCleanups = result
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result.startTest(self)
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if getattr(self.__class__, "__unittest_skip__", False):
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# If the whole class was skipped.
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try:
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result.addSkip(self, self.__class__.__unittest_skip_why__)
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finally:
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result.stopTest(self)
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return
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testMethod = getattr(self, self._testMethodName)
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try:
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success = False
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try:
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self.setUp()
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except SkipTest as e:
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result.addSkip(self, str(e))
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except Exception:
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result.addError(self, sys.exc_info())
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else:
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try:
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testMethod()
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except self.failureException:
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result.addFailure(self, sys.exc_info())
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except _ExpectedFailure as e:
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result.addExpectedFailure(self, e.exc_info)
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except _UnexpectedSuccess:
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result.addUnexpectedSuccess(self)
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except SkipTest as e:
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result.addSkip(self, str(e))
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except Exception:
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result.addError(self, sys.exc_info())
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else:
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success = True
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try:
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self.tearDown()
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except Exception:
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result.addError(self, sys.exc_info())
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success = False
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cleanUpSuccess = self.doCleanups()
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success = success and cleanUpSuccess
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if success:
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result.addSuccess(self)
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finally:
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result.stopTest(self)
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if orig_result is None:
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stopTestRun = getattr(result, 'stopTestRun', None)
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if stopTestRun is not None:
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stopTestRun()
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def doCleanups(self):
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"""Execute all cleanup functions. Normally called for you after
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tearDown."""
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result = self._resultForDoCleanups
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ok = True
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while self._cleanups:
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function, args, kwargs = self._cleanups.pop(-1)
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try:
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function(*args, **kwargs)
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except Exception:
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ok = False
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result.addError(self, sys.exc_info())
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return ok
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def __call__(self, *args, **kwds):
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return self.run(*args, **kwds)
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def debug(self):
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"""Run the test without collecting errors in a TestResult"""
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self.setUp()
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getattr(self, self._testMethodName)()
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self.tearDown()
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def skipTest(self, reason):
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"""Skip this test."""
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raise SkipTest(reason)
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def fail(self, msg=None):
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"""Fail immediately, with the given message."""
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raise self.failureException(msg)
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def assertFalse(self, expr, msg=None):
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"Fail the test if the expression is true."
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if expr:
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msg = self._formatMessage(msg, "%r is not False" % expr)
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raise self.failureException(msg)
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def assertTrue(self, expr, msg=None):
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"""Fail the test unless the expression is true."""
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if not expr:
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msg = self._formatMessage(msg, "%r is not True" % expr)
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raise self.failureException(msg)
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def _formatMessage(self, msg, standardMsg):
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"""Honour the longMessage attribute when generating failure messages.
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If longMessage is False this means:
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* Use only an explicit message if it is provided
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* Otherwise use the standard message for the assert
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If longMessage is True:
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* Use the standard message
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* If an explicit message is provided, plus ' : ' and the explicit message
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"""
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if not self.longMessage:
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return msg or standardMsg
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if msg is None:
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return standardMsg
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return standardMsg + ' : ' + msg
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def assertRaises(self, excClass, callableObj=None, *args, **kwargs):
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"""Fail unless an exception of class excClass is thrown
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by callableObj when invoked with arguments args and keyword
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arguments kwargs. If a different type of exception is
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thrown, it will not be caught, and the test case will be
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deemed to have suffered an error, exactly as for an
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unexpected exception.
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If called with callableObj omitted or None, will return a
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context object used like this::
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with self.assertRaises(some_error_class):
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do_something()
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"""
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context = _AssertRaisesContext(excClass, self)
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if callableObj is None:
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return context
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with context:
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callableObj(*args, **kwargs)
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def _getAssertEqualityFunc(self, first, second):
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"""Get a detailed comparison function for the types of the two args.
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Returns: A callable accepting (first, second, msg=None) that will
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raise a failure exception if first != second with a useful human
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readable error message for those types.
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"""
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#
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# NOTE(gregory.p.smith): I considered isinstance(first, type(second))
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# and vice versa. I opted for the conservative approach in case
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# subclasses are not intended to be compared in detail to their super
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# class instances using a type equality func. This means testing
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# subtypes won't automagically use the detailed comparison. Callers
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# should use their type specific assertSpamEqual method to compare
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# subclasses if the detailed comparison is desired and appropriate.
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# See the discussion in http://bugs.python.org/issue2578.
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#
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if type(first) is type(second):
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asserter = self._type_equality_funcs.get(type(first))
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if asserter is not None:
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return asserter
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return self._baseAssertEqual
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def _baseAssertEqual(self, first, second, msg=None):
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"""The default assertEqual implementation, not type specific."""
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if not first == second:
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standardMsg = '%r != %r' % (first, second)
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msg = self._formatMessage(msg, standardMsg)
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raise self.failureException(msg)
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def assertEqual(self, first, second, msg=None):
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"""Fail if the two objects are unequal as determined by the '=='
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operator.
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"""
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assertion_func = self._getAssertEqualityFunc(first, second)
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assertion_func(first, second, msg=msg)
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def assertNotEqual(self, first, second, msg=None):
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"""Fail if the two objects are equal as determined by the '=='
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operator.
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"""
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if not first != second:
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msg = self._formatMessage(msg, '%r == %r' % (first, second))
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raise self.failureException(msg)
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def assertAlmostEqual(self, first, second, places=7, msg=None):
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"""Fail if the two objects are unequal as determined by their
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difference rounded to the given number of decimal places
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(default 7) and comparing to zero.
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Note that decimal places (from zero) are usually not the same
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as significant digits (measured from the most signficant digit).
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If the two objects compare equal then they will automatically
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compare almost equal.
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"""
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if first == second:
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# shortcut for ite
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return
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if round(abs(second-first), places) != 0:
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standardMsg = '%r != %r within %r places' % (first, second, places)
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msg = self._formatMessage(msg, standardMsg)
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raise self.failureException(msg)
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def assertNotAlmostEqual(self, first, second, places=7, msg=None):
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"""Fail if the two objects are equal as determined by their
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difference rounded to the given number of decimal places
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(default 7) and comparing to zero.
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Note that decimal places (from zero) are usually not the same
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as significant digits (measured from the most signficant digit).
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Objects that are equal automatically fail.
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"""
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if (first == second) or round(abs(second-first), places) == 0:
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standardMsg = '%r == %r within %r places' % (first, second, places)
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msg = self._formatMessage(msg, standardMsg)
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raise self.failureException(msg)
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# Synonyms for assertion methods
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# The plurals are undocumented. Keep them that way to discourage use.
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# Do not add more. Do not remove.
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# Going through a deprecation cycle on these would annoy many people.
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assertEquals = assertEqual
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assertNotEquals = assertNotEqual
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assertAlmostEquals = assertAlmostEqual
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assertNotAlmostEquals = assertNotAlmostEqual
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assert_ = assertTrue
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# These fail* assertion method names are pending deprecation and will
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# be a DeprecationWarning in 3.2; http://bugs.python.org/issue2578
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def _deprecate(original_func):
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def deprecated_func(*args, **kwargs):
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warnings.warn(
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'Please use {0} instead.'.format(original_func.__name__),
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PendingDeprecationWarning, 2)
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return original_func(*args, **kwargs)
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return deprecated_func
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failUnlessEqual = _deprecate(assertEqual)
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failIfEqual = _deprecate(assertNotEqual)
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failUnlessAlmostEqual = _deprecate(assertAlmostEqual)
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failIfAlmostEqual = _deprecate(assertNotAlmostEqual)
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failUnless = _deprecate(assertTrue)
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failUnlessRaises = _deprecate(assertRaises)
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failIf = _deprecate(assertFalse)
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def assertSequenceEqual(self, seq1, seq2, msg=None, seq_type=None):
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"""An equality assertion for ordered sequences (like lists and tuples).
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For the purposes of this function, a valid orderd sequence type is one
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which can be indexed, has a length, and has an equality operator.
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Args:
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seq1: The first sequence to compare.
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seq2: The second sequence to compare.
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seq_type: The expected datatype of the sequences, or None if no
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datatype should be enforced.
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msg: Optional message to use on failure instead of a list of
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differences.
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"""
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if seq_type != None:
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seq_type_name = seq_type.__name__
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if not isinstance(seq1, seq_type):
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raise self.failureException('First sequence is not a %s: %r'
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% (seq_type_name, seq1))
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if not isinstance(seq2, seq_type):
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raise self.failureException('Second sequence is not a %s: %r'
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% (seq_type_name, seq2))
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else:
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seq_type_name = "sequence"
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differing = None
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try:
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len1 = len(seq1)
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except (TypeError, NotImplementedError):
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differing = 'First %s has no length. Non-sequence?' % (
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seq_type_name)
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|
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if differing is None:
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try:
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len2 = len(seq2)
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except (TypeError, NotImplementedError):
|
|
differing = 'Second %s has no length. Non-sequence?' % (
|
|
seq_type_name)
|
|
|
|
if differing is None:
|
|
if seq1 == seq2:
|
|
return
|
|
|
|
seq1_repr = repr(seq1)
|
|
seq2_repr = repr(seq2)
|
|
if len(seq1_repr) > 30:
|
|
seq1_repr = seq1_repr[:30] + '...'
|
|
if len(seq2_repr) > 30:
|
|
seq2_repr = seq2_repr[:30] + '...'
|
|
elements = (seq_type_name.capitalize(), seq1_repr, seq2_repr)
|
|
differing = '%ss differ: %s != %s\n' % elements
|
|
|
|
for i in xrange(min(len1, len2)):
|
|
try:
|
|
item1 = seq1[i]
|
|
except (TypeError, IndexError, NotImplementedError):
|
|
differing += ('\nUnable to index element %d of first %s\n' %
|
|
(i, seq_type_name))
|
|
break
|
|
|
|
try:
|
|
item2 = seq2[i]
|
|
except (TypeError, IndexError, NotImplementedError):
|
|
differing += ('\nUnable to index element %d of second %s\n' %
|
|
(i, seq_type_name))
|
|
break
|
|
|
|
if item1 != item2:
|
|
differing += ('\nFirst differing element %d:\n%s\n%s\n' %
|
|
(i, item1, item2))
|
|
break
|
|
else:
|
|
if (len1 == len2 and seq_type is None and
|
|
type(seq1) != type(seq2)):
|
|
# The sequences are the same, but have differing types.
|
|
return
|
|
|
|
if len1 > len2:
|
|
differing += ('\nFirst %s contains %d additional '
|
|
'elements.\n' % (seq_type_name, len1 - len2))
|
|
try:
|
|
differing += ('First extra element %d:\n%s\n' %
|
|
(len2, seq1[len2]))
|
|
except (TypeError, IndexError, NotImplementedError):
|
|
differing += ('Unable to index element %d '
|
|
'of first %s\n' % (len2, seq_type_name))
|
|
elif len1 < len2:
|
|
differing += ('\nSecond %s contains %d additional '
|
|
'elements.\n' % (seq_type_name, len2 - len1))
|
|
try:
|
|
differing += ('First extra element %d:\n%s\n' %
|
|
(len1, seq2[len1]))
|
|
except (TypeError, IndexError, NotImplementedError):
|
|
differing += ('Unable to index element %d '
|
|
'of second %s\n' % (len1, seq_type_name))
|
|
standardMsg = differing + '\n' + '\n'.join(
|
|
difflib.ndiff(pprint.pformat(seq1).splitlines(),
|
|
pprint.pformat(seq2).splitlines()))
|
|
msg = self._formatMessage(msg, standardMsg)
|
|
self.fail(msg)
|
|
|
|
def assertListEqual(self, list1, list2, msg=None):
|
|
"""A list-specific equality assertion.
|
|
|
|
Args:
|
|
list1: The first list to compare.
|
|
list2: The second list to compare.
|
|
msg: Optional message to use on failure instead of a list of
|
|
differences.
|
|
|
|
"""
|
|
self.assertSequenceEqual(list1, list2, msg, seq_type=list)
|
|
|
|
def assertTupleEqual(self, tuple1, tuple2, msg=None):
|
|
"""A tuple-specific equality assertion.
|
|
|
|
Args:
|
|
tuple1: The first tuple to compare.
|
|
tuple2: The second tuple to compare.
|
|
msg: Optional message to use on failure instead of a list of
|
|
differences.
|
|
"""
|
|
self.assertSequenceEqual(tuple1, tuple2, msg, seq_type=tuple)
|
|
|
|
def assertSetEqual(self, set1, set2, msg=None):
|
|
"""A set-specific equality assertion.
|
|
|
|
Args:
|
|
set1: The first set to compare.
|
|
set2: The second set to compare.
|
|
msg: Optional message to use on failure instead of a list of
|
|
differences.
|
|
|
|
For more general containership equality, assertSameElements will work
|
|
with things other than sets. This uses ducktyping to support
|
|
different types of sets, and is optimized for sets specifically
|
|
(parameters must support a difference method).
|
|
"""
|
|
try:
|
|
difference1 = set1.difference(set2)
|
|
except TypeError, e:
|
|
self.fail('invalid type when attempting set difference: %s' % e)
|
|
except AttributeError, e:
|
|
self.fail('first argument does not support set difference: %s' % e)
|
|
|
|
try:
|
|
difference2 = set2.difference(set1)
|
|
except TypeError, e:
|
|
self.fail('invalid type when attempting set difference: %s' % e)
|
|
except AttributeError, e:
|
|
self.fail('second argument does not support set difference: %s' % e)
|
|
|
|
if not (difference1 or difference2):
|
|
return
|
|
|
|
lines = []
|
|
if difference1:
|
|
lines.append('Items in the first set but not the second:')
|
|
for item in difference1:
|
|
lines.append(repr(item))
|
|
if difference2:
|
|
lines.append('Items in the second set but not the first:')
|
|
for item in difference2:
|
|
lines.append(repr(item))
|
|
|
|
standardMsg = '\n'.join(lines)
|
|
self.fail(self._formatMessage(msg, standardMsg))
|
|
|
|
def assertIn(self, member, container, msg=None):
|
|
"""Just like self.assertTrue(a in b), but with a nicer default message."""
|
|
if member not in container:
|
|
standardMsg = '%r not found in %r' % (member, container)
|
|
self.fail(self._formatMessage(msg, standardMsg))
|
|
|
|
def assertNotIn(self, member, container, msg=None):
|
|
"""Just like self.assertTrue(a not in b), but with a nicer default message."""
|
|
if member in container:
|
|
standardMsg = '%r unexpectedly found in %r' % (member, container)
|
|
self.fail(self._formatMessage(msg, standardMsg))
|
|
|
|
def assertIs(self, expr1, expr2, msg=None):
|
|
"""Just like self.assertTrue(a is b), but with a nicer default message."""
|
|
if expr1 is not expr2:
|
|
standardMsg = '%r is not %r' % (expr1, expr2)
|
|
self.fail(self._formatMessage(msg, standardMsg))
|
|
|
|
def assertIsNot(self, expr1, expr2, msg=None):
|
|
"""Just like self.assertTrue(a is not b), but with a nicer default message."""
|
|
if expr1 is expr2:
|
|
standardMsg = 'unexpectedly identical: %r' % (expr1,)
|
|
self.fail(self._formatMessage(msg, standardMsg))
|
|
|
|
def assertDictEqual(self, d1, d2, msg=None):
|
|
self.assert_(isinstance(d1, dict), 'First argument is not a dictionary')
|
|
self.assert_(isinstance(d2, dict), 'Second argument is not a dictionary')
|
|
|
|
if d1 != d2:
|
|
standardMsg = ('\n' + '\n'.join(difflib.ndiff(
|
|
pprint.pformat(d1).splitlines(),
|
|
pprint.pformat(d2).splitlines())))
|
|
self.fail(self._formatMessage(msg, standardMsg))
|
|
|
|
def assertDictContainsSubset(self, expected, actual, msg=None):
|
|
"""Checks whether actual is a superset of expected."""
|
|
missing = []
|
|
mismatched = []
|
|
for key, value in expected.iteritems():
|
|
if key not in actual:
|
|
missing.append(key)
|
|
elif value != actual[key]:
|
|
mismatched.append('%s, expected: %s, actual: %s' %
|
|
(key, value, actual[key]))
|
|
|
|
if not (missing or mismatched):
|
|
return
|
|
|
|
standardMsg = ''
|
|
if missing:
|
|
standardMsg = 'Missing: %r' % ','.join(missing)
|
|
if mismatched:
|
|
if standardMsg:
|
|
standardMsg += '; '
|
|
standardMsg += 'Mismatched values: %s' % ','.join(mismatched)
|
|
|
|
self.fail(self._formatMessage(msg, standardMsg))
|
|
|
|
def assertSameElements(self, expected_seq, actual_seq, msg=None):
|
|
"""An unordered sequence specific comparison.
|
|
|
|
Raises with an error message listing which elements of expected_seq
|
|
are missing from actual_seq and vice versa if any.
|
|
"""
|
|
try:
|
|
expected = set(expected_seq)
|
|
actual = set(actual_seq)
|
|
missing = list(expected.difference(actual))
|
|
unexpected = list(actual.difference(expected))
|
|
missing.sort()
|
|
unexpected.sort()
|
|
except TypeError:
|
|
# Fall back to slower list-compare if any of the objects are
|
|
# not hashable.
|
|
expected = list(expected_seq)
|
|
actual = list(actual_seq)
|
|
with warnings.catch_warnings():
|
|
if sys.py3kwarning:
|
|
# Silence Py3k warning
|
|
warnings.filterwarnings("ignore",
|
|
"dict inequality comparisons "
|
|
"not supported", DeprecationWarning)
|
|
expected.sort()
|
|
actual.sort()
|
|
missing, unexpected = util.sorted_list_difference(expected, actual)
|
|
errors = []
|
|
if missing:
|
|
errors.append('Expected, but missing:\n %r' % missing)
|
|
if unexpected:
|
|
errors.append('Unexpected, but present:\n %r' % unexpected)
|
|
if errors:
|
|
standardMsg = '\n'.join(errors)
|
|
self.fail(self._formatMessage(msg, standardMsg))
|
|
|
|
def assertMultiLineEqual(self, first, second, msg=None):
|
|
"""Assert that two multi-line strings are equal."""
|
|
self.assert_(isinstance(first, basestring), (
|
|
'First argument is not a string'))
|
|
self.assert_(isinstance(second, basestring), (
|
|
'Second argument is not a string'))
|
|
|
|
if first != second:
|
|
standardMsg = '\n' + ''.join(difflib.ndiff(first.splitlines(True),
|
|
second.splitlines(True)))
|
|
self.fail(self._formatMessage(msg, standardMsg))
|
|
|
|
def assertLess(self, a, b, msg=None):
|
|
"""Just like self.assertTrue(a < b), but with a nicer default message."""
|
|
if not a < b:
|
|
standardMsg = '%r not less than %r' % (a, b)
|
|
self.fail(self._formatMessage(msg, standardMsg))
|
|
|
|
def assertLessEqual(self, a, b, msg=None):
|
|
"""Just like self.assertTrue(a <= b), but with a nicer default message."""
|
|
if not a <= b:
|
|
standardMsg = '%r not less than or equal to %r' % (a, b)
|
|
self.fail(self._formatMessage(msg, standardMsg))
|
|
|
|
def assertGreater(self, a, b, msg=None):
|
|
"""Just like self.assertTrue(a > b), but with a nicer default message."""
|
|
if not a > b:
|
|
standardMsg = '%r not greater than %r' % (a, b)
|
|
self.fail(self._formatMessage(msg, standardMsg))
|
|
|
|
def assertGreaterEqual(self, a, b, msg=None):
|
|
"""Just like self.assertTrue(a >= b), but with a nicer default message."""
|
|
if not a >= b:
|
|
standardMsg = '%r not greater than or equal to %r' % (a, b)
|
|
self.fail(self._formatMessage(msg, standardMsg))
|
|
|
|
def assertIsNone(self, obj, msg=None):
|
|
"""Same as self.assertTrue(obj is None), with a nicer default message."""
|
|
if obj is not None:
|
|
standardMsg = '%r is not None' % obj
|
|
self.fail(self._formatMessage(msg, standardMsg))
|
|
|
|
def assertIsNotNone(self, obj, msg=None):
|
|
"""Included for symmetry with assertIsNone."""
|
|
if obj is None:
|
|
standardMsg = 'unexpectedly None'
|
|
self.fail(self._formatMessage(msg, standardMsg))
|
|
|
|
def assertIsInstance(self, obj, cls, msg=None):
|
|
"""Same as self.assertTrue(isinstance(obj, cls)), with a nicer
|
|
default message."""
|
|
if not isinstance(obj, cls):
|
|
standardMsg = '%r is not an instance of %r' % (obj, cls)
|
|
self.fail(self._formatMessage(msg, standardMsg))
|
|
|
|
def assertNotIsInstance(self, obj, cls, msg=None):
|
|
"""Included for symmetry with assertIsInstance."""
|
|
if isinstance(obj, cls):
|
|
standardMsg = '%r is an instance of %r' % (obj, cls)
|
|
self.fail(self._formatMessage(msg, standardMsg))
|
|
|
|
def assertRaisesRegexp(self, expected_exception, expected_regexp,
|
|
callable_obj=None, *args, **kwargs):
|
|
"""Asserts that the message in a raised exception matches a regexp.
|
|
|
|
Args:
|
|
expected_exception: Exception class expected to be raised.
|
|
expected_regexp: Regexp (re pattern object or string) expected
|
|
to be found in error message.
|
|
callable_obj: Function to be called.
|
|
args: Extra args.
|
|
kwargs: Extra kwargs.
|
|
"""
|
|
context = _AssertRaisesContext(expected_exception, self, expected_regexp)
|
|
if callable_obj is None:
|
|
return context
|
|
with context:
|
|
callable_obj(*args, **kwargs)
|
|
|
|
def assertRegexpMatches(self, text, expected_regex, msg=None):
|
|
if isinstance(expected_regex, basestring):
|
|
expected_regex = re.compile(expected_regex)
|
|
if not expected_regex.search(text):
|
|
msg = msg or "Regexp didn't match"
|
|
msg = '%s: %r not found in %r' % (msg, expected_regex.pattern, text)
|
|
raise self.failureException(msg)
|
|
|
|
|
|
class FunctionTestCase(TestCase):
|
|
"""A test case that wraps a test function.
|
|
|
|
This is useful for slipping pre-existing test functions into the
|
|
unittest framework. Optionally, set-up and tidy-up functions can be
|
|
supplied. As with TestCase, the tidy-up ('tearDown') function will
|
|
always be called if the set-up ('setUp') function ran successfully.
|
|
"""
|
|
|
|
def __init__(self, testFunc, setUp=None, tearDown=None, description=None):
|
|
super(FunctionTestCase, self).__init__()
|
|
self._setUpFunc = setUp
|
|
self._tearDownFunc = tearDown
|
|
self._testFunc = testFunc
|
|
self._description = description
|
|
|
|
def setUp(self):
|
|
if self._setUpFunc is not None:
|
|
self._setUpFunc()
|
|
|
|
def tearDown(self):
|
|
if self._tearDownFunc is not None:
|
|
self._tearDownFunc()
|
|
|
|
def runTest(self):
|
|
self._testFunc()
|
|
|
|
def id(self):
|
|
return self._testFunc.__name__
|
|
|
|
def __eq__(self, other):
|
|
if not isinstance(other, self.__class__):
|
|
return NotImplemented
|
|
|
|
return self._setUpFunc == other._setUpFunc and \
|
|
self._tearDownFunc == other._tearDownFunc and \
|
|
self._testFunc == other._testFunc and \
|
|
self._description == other._description
|
|
|
|
def __ne__(self, other):
|
|
return not self == other
|
|
|
|
def __hash__(self):
|
|
return hash((type(self), self._setUpFunc, self._tearDownFunc,
|
|
self._testFunc, self._description))
|
|
|
|
def __str__(self):
|
|
return "%s (%s)" % (util.strclass(self.__class__),
|
|
self._testFunc.__name__)
|
|
|
|
def __repr__(self):
|
|
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
|