test_ok1/_pytest/python.py

877 lines
31 KiB
Python

""" Python test discovery, setup and run of test functions. """
import py
import inspect
import sys
import pytest
from py._code.code import TerminalRepr
import _pytest
cutdir = py.path.local(_pytest.__file__).dirpath()
def pytest_addoption(parser):
group = parser.getgroup("general")
group.addoption('--funcargs',
action="store_true", dest="showfuncargs", default=False,
help="show available function arguments, sorted by plugin")
parser.addini("python_files", type="args",
default=('test_*.py', '*_test.py'),
help="glob-style file patterns for Python test module discovery")
parser.addini("python_classes", type="args", default=("Test",),
help="prefixes for Python test class discovery")
parser.addini("python_functions", type="args", default=("test",),
help="prefixes for Python test function and method discovery")
def pytest_cmdline_main(config):
if config.option.showfuncargs:
showfuncargs(config)
return 0
@pytest.mark.trylast
def pytest_namespace():
raises.Exception = pytest.fail.Exception
return {
'raises' : raises,
'collect': {
'Module': Module, 'Class': Class, 'Instance': Instance,
'Function': Function, 'Generator': Generator,
'_fillfuncargs': fillfuncargs}
}
def pytest_funcarg__pytestconfig(request):
""" the pytest config object with access to command line opts."""
return request.config
def pytest_pyfunc_call(__multicall__, pyfuncitem):
if not __multicall__.execute():
testfunction = pyfuncitem.obj
if pyfuncitem._isyieldedfunction():
testfunction(*pyfuncitem._args)
else:
funcargs = pyfuncitem.funcargs
testfunction(**funcargs)
def pytest_collect_file(path, parent):
ext = path.ext
pb = path.purebasename
if ext == ".py":
if not parent.session.isinitpath(path):
for pat in parent.config.getini('python_files'):
if path.fnmatch(pat):
break
else:
return
mod = parent.ihook.pytest_pycollect_makemodule(
path=path, parent=parent)
if mod is not None:
parent.ihook.pytest_pycollect_onmodule(mod=mod)
return mod
def pytest_pycollect_makemodule(path, parent):
return Module(path, parent)
def pytest_pycollect_makeitem(__multicall__, collector, name, obj):
res = __multicall__.execute()
if res is not None:
return res
if inspect.isclass(obj):
#if hasattr(collector.obj, 'unittest'):
# return # we assume it's a mixin class for a TestCase derived one
if collector.classnamefilter(name):
if not hasinit(obj):
Class = collector._getcustomclass("Class")
return Class(name, parent=collector)
elif collector.funcnamefilter(name) and hasattr(obj, '__call__'):
if is_generator(obj):
return Generator(name, parent=collector)
else:
return collector._genfunctions(name, obj)
def is_generator(func):
try:
return py.code.getrawcode(func).co_flags & 32 # generator function
except AttributeError: # builtin functions have no bytecode
# assume them to not be generators
return False
class PyobjMixin(object):
def obj():
def fget(self):
try:
return self._obj
except AttributeError:
self._obj = obj = self._getobj()
return obj
def fset(self, value):
self._obj = value
return property(fget, fset, None, "underlying python object")
obj = obj()
def _getobj(self):
return getattr(self.parent.obj, self.name)
def getmodpath(self, stopatmodule=True, includemodule=False):
""" return python path relative to the containing module. """
chain = self.listchain()
chain.reverse()
parts = []
for node in chain:
if isinstance(node, Instance):
continue
name = node.name
if isinstance(node, Module):
assert name.endswith(".py")
name = name[:-3]
if stopatmodule:
if includemodule:
parts.append(name)
break
parts.append(name)
parts.reverse()
s = ".".join(parts)
return s.replace(".[", "[")
def _getfslineno(self):
try:
return self._fslineno
except AttributeError:
pass
obj = self.obj
# xxx let decorators etc specify a sane ordering
if hasattr(obj, 'place_as'):
obj = obj.place_as
self._fslineno = py.code.getfslineno(obj)
return self._fslineno
def reportinfo(self):
# XXX caching?
obj = self.obj
if hasattr(obj, 'compat_co_firstlineno'):
# nose compatibility
fspath = sys.modules[obj.__module__].__file__
if fspath.endswith(".pyc"):
fspath = fspath[:-1]
#assert 0
#fn = inspect.getsourcefile(obj) or inspect.getfile(obj)
lineno = obj.compat_co_firstlineno
modpath = obj.__module__
else:
fspath, lineno = self._getfslineno()
modpath = self.getmodpath()
return fspath, lineno, modpath
class PyCollectorMixin(PyobjMixin, pytest.Collector):
def funcnamefilter(self, name):
for prefix in self.config.getini("python_functions"):
if name.startswith(prefix):
return True
def classnamefilter(self, name):
for prefix in self.config.getini("python_classes"):
if name.startswith(prefix):
return True
def collect(self):
# NB. we avoid random getattrs and peek in the __dict__ instead
# (XXX originally introduced from a PyPy need, still true?)
dicts = [getattr(self.obj, '__dict__', {})]
for basecls in inspect.getmro(self.obj.__class__):
dicts.append(basecls.__dict__)
seen = {}
l = []
for dic in dicts:
for name, obj in dic.items():
if name in seen:
continue
seen[name] = True
if name[0] != "_":
res = self.makeitem(name, obj)
if res is None:
continue
if not isinstance(res, list):
res = [res]
l.extend(res)
l.sort(key=lambda item: item.reportinfo()[:2])
return l
def makeitem(self, name, obj):
return self.ihook.pytest_pycollect_makeitem(
collector=self, name=name, obj=obj)
def _genfunctions(self, name, funcobj):
module = self.getparent(Module).obj
clscol = self.getparent(Class)
cls = clscol and clscol.obj or None
metafunc = Metafunc(funcobj, config=self.config,
cls=cls, module=module)
gentesthook = self.config.hook.pytest_generate_tests
extra = [module]
if cls is not None:
extra.append(cls())
plugins = self.getplugins() + extra
gentesthook.pcall(plugins, metafunc=metafunc)
Function = self._getcustomclass("Function")
if not metafunc._calls:
return Function(name, parent=self)
l = []
for callspec in metafunc._calls:
subname = "%s[%s]" %(name, callspec.id)
function = Function(name=subname, parent=self,
callspec=callspec, callobj=funcobj, keywords={callspec.id:True})
l.append(function)
return l
class Module(pytest.File, PyCollectorMixin):
def _getobj(self):
return self._memoizedcall('_obj', self._importtestmodule)
def _importtestmodule(self):
self.ihook.pytest_pycollect_before_module_import(mod=self)
# we assume we are only called once per module
try:
try:
mod = self.fspath.pyimport(ensuresyspath=True)
finally:
self.ihook.pytest_pycollect_after_module_import(mod=self)
except SyntaxError:
excinfo = py.code.ExceptionInfo()
raise self.CollectError(excinfo.getrepr(style="short"))
except self.fspath.ImportMismatchError:
e = sys.exc_info()[1]
raise self.CollectError(
"import file mismatch:\n"
"imported module %r has this __file__ attribute:\n"
" %s\n"
"which is not the same as the test file we want to collect:\n"
" %s\n"
"HINT: use a unique basename for your test file modules"
% e.args
)
#print "imported test module", mod
self.config.pluginmanager.consider_module(mod)
return mod
def setup(self):
if hasattr(self.obj, 'setup_module'):
#XXX: nose compat hack, move to nose plugin
# if it takes a positional arg, its probably a pytest style one
# so we pass the current module object
if inspect.getargspec(self.obj.setup_module)[0]:
self.obj.setup_module(self.obj)
else:
self.obj.setup_module()
def teardown(self):
if hasattr(self.obj, 'teardown_module'):
#XXX: nose compat hack, move to nose plugin
# if it takes a positional arg, its probably a py.test style one
# so we pass the current module object
if inspect.getargspec(self.obj.teardown_module)[0]:
self.obj.teardown_module(self.obj)
else:
self.obj.teardown_module()
class Class(PyCollectorMixin, pytest.Collector):
def collect(self):
return [self._getcustomclass("Instance")(name="()", parent=self)]
def setup(self):
setup_class = getattr(self.obj, 'setup_class', None)
if setup_class is not None:
setup_class = getattr(setup_class, 'im_func', setup_class)
setup_class(self.obj)
def teardown(self):
teardown_class = getattr(self.obj, 'teardown_class', None)
if teardown_class is not None:
teardown_class = getattr(teardown_class, 'im_func', teardown_class)
teardown_class(self.obj)
class Instance(PyCollectorMixin, pytest.Collector):
def _getobj(self):
return self.parent.obj()
def newinstance(self):
self.obj = self._getobj()
return self.obj
class FunctionMixin(PyobjMixin):
""" mixin for the code common to Function and Generator.
"""
def setup(self):
""" perform setup for this test function. """
if hasattr(self, '_preservedparent'):
obj = self._preservedparent
elif isinstance(self.parent, Instance):
obj = self.parent.newinstance()
self.obj = self._getobj()
else:
obj = self.parent.obj
if inspect.ismethod(self.obj):
name = 'setup_method'
else:
name = 'setup_function'
setup_func_or_method = getattr(obj, name, None)
if setup_func_or_method is not None:
setup_func_or_method(self.obj)
def teardown(self):
""" perform teardown for this test function. """
if inspect.ismethod(self.obj):
name = 'teardown_method'
else:
name = 'teardown_function'
obj = self.parent.obj
teardown_func_or_meth = getattr(obj, name, None)
if teardown_func_or_meth is not None:
teardown_func_or_meth(self.obj)
def _prunetraceback(self, excinfo):
if hasattr(self, '_obj') and not self.config.option.fulltrace:
code = py.code.Code(self.obj)
path, firstlineno = code.path, code.firstlineno
traceback = excinfo.traceback
ntraceback = traceback.cut(path=path, firstlineno=firstlineno)
if ntraceback == traceback:
ntraceback = ntraceback.cut(path=path)
if ntraceback == traceback:
ntraceback = ntraceback.cut(excludepath=cutdir)
excinfo.traceback = ntraceback.filter()
def _repr_failure_py(self, excinfo, style="long"):
if excinfo.errisinstance(FuncargRequest.LookupError):
fspath, lineno, msg = self.reportinfo()
lines, _ = inspect.getsourcelines(self.obj)
for i, line in enumerate(lines):
if line.strip().startswith('def'):
return FuncargLookupErrorRepr(fspath, lineno,
lines[:i+1], str(excinfo.value))
if excinfo.errisinstance(pytest.fail.Exception):
if not excinfo.value.pytrace:
return str(excinfo.value)
return super(FunctionMixin, self)._repr_failure_py(excinfo,
style=style)
def repr_failure(self, excinfo, outerr=None):
assert outerr is None, "XXX outerr usage is deprecated"
return self._repr_failure_py(excinfo,
style=self.config.option.tbstyle)
class FuncargLookupErrorRepr(TerminalRepr):
def __init__(self, filename, firstlineno, deflines, errorstring):
self.deflines = deflines
self.errorstring = errorstring
self.filename = filename
self.firstlineno = firstlineno
def toterminal(self, tw):
tw.line()
for line in self.deflines:
tw.line(" " + line.strip())
for line in self.errorstring.split("\n"):
tw.line(" " + line.strip(), red=True)
tw.line()
tw.line("%s:%d" % (self.filename, self.firstlineno+1))
class Generator(FunctionMixin, PyCollectorMixin, pytest.Collector):
def collect(self):
# test generators are seen as collectors but they also
# invoke setup/teardown on popular request
# (induced by the common "test_*" naming shared with normal tests)
self.session._setupstate.prepare(self)
# see FunctionMixin.setup and test_setupstate_is_preserved_134
self._preservedparent = self.parent.obj
l = []
seen = {}
for i, x in enumerate(self.obj()):
name, call, args = self.getcallargs(x)
if not py.builtin.callable(call):
raise TypeError("%r yielded non callable test %r" %(self.obj, call,))
if name is None:
name = "[%d]" % i
else:
name = "['%s']" % name
if name in seen:
raise ValueError("%r generated tests with non-unique name %r" %(self, name))
seen[name] = True
l.append(self.Function(name, self, args=args, callobj=call))
return l
def getcallargs(self, obj):
if not isinstance(obj, (tuple, list)):
obj = (obj,)
# explict naming
if isinstance(obj[0], py.builtin._basestring):
name = obj[0]
obj = obj[1:]
else:
name = None
call, args = obj[0], obj[1:]
return name, call, args
#
# Test Items
#
_dummy = object()
class Function(FunctionMixin, pytest.Item):
""" a Function Item is responsible for setting up
and executing a Python callable test object.
"""
_genid = None
def __init__(self, name, parent=None, args=None, config=None,
callspec=None, callobj=_dummy, keywords=None, session=None):
super(Function, self).__init__(name, parent,
config=config, session=session)
self._args = args
if self._isyieldedfunction():
assert not callspec, (
"yielded functions (deprecated) cannot have funcargs")
else:
if callspec is not None:
self.funcargs = callspec.funcargs or {}
self._genid = callspec.id
if hasattr(callspec, "param"):
self._requestparam = callspec.param
else:
self.funcargs = {}
if callobj is not _dummy:
self._obj = callobj
self.function = getattr(self.obj, 'im_func', self.obj)
self.keywords.update(py.builtin._getfuncdict(self.obj) or {})
if keywords:
self.keywords.update(keywords)
def _getobj(self):
name = self.name
i = name.find("[") # parametrization
if i != -1:
name = name[:i]
return getattr(self.parent.obj, name)
def _isyieldedfunction(self):
return self._args is not None
def runtest(self):
""" execute the underlying test function. """
self.ihook.pytest_pyfunc_call(pyfuncitem=self)
def setup(self):
super(Function, self).setup()
if hasattr(self, 'funcargs'):
fillfuncargs(self)
def __eq__(self, other):
try:
return (self.name == other.name and
self._args == other._args and
self.parent == other.parent and
self.obj == other.obj and
getattr(self, '_genid', None) ==
getattr(other, '_genid', None)
)
except AttributeError:
pass
return False
def __ne__(self, other):
return not self == other
def __hash__(self):
return hash((self.parent, self.name))
def hasinit(obj):
init = getattr(obj, '__init__', None)
if init:
if init != object.__init__:
return True
def getfuncargnames(function, startindex=None):
# XXX merge with main.py's varnames
argnames = py.std.inspect.getargs(py.code.getrawcode(function))[0]
if startindex is None:
startindex = py.std.inspect.ismethod(function) and 1 or 0
defaults = getattr(function, 'func_defaults',
getattr(function, '__defaults__', None)) or ()
numdefaults = len(defaults)
if numdefaults:
return argnames[startindex:-numdefaults]
return argnames[startindex:]
def fillfuncargs(function):
""" fill missing funcargs. """
request = FuncargRequest(pyfuncitem=function)
request._fillfuncargs()
def pytest_configure_funcargs(request):
argnames = getfuncargnames(request.function)
if argnames:
item = request._pyfuncitem
assert not getattr(item, '_args', None), (
"yielded functions cannot have funcargs")
for argname in argnames:
if argname not in item.funcargs:
item.funcargs[argname] = request.getfuncargvalue(argname)
_notexists = object()
class CallSpec:
def __init__(self, funcargs, id, param):
self.funcargs = funcargs
self.id = id
if param is not _notexists:
self.param = param
def __repr__(self):
return "<CallSpec id=%r param=%r funcargs=%r>" %(
self.id, getattr(self, 'param', '?'), self.funcargs)
class Metafunc:
def __init__(self, function, config=None, cls=None, module=None):
self.config = config
self.module = module
self.function = function
self.funcargnames = getfuncargnames(function,
startindex=int(cls is not None))
self.cls = cls
self.module = module
self._calls = []
self._ids = py.builtin.set()
def addcall(self, funcargs=None, id=_notexists, param=_notexists):
""" add a new call to the underlying test function during the
collection phase of a test run. Note that request.addcall() is
called during the test collection phase prior and independently
to actual test execution. Therefore you should perform setup
of resources in a funcarg factory which can be instrumented
with the ``param``.
:arg funcargs: argument keyword dictionary used when invoking
the test function.
:arg id: used for reporting and identification purposes. If you
don't supply an `id` the length of the currently
list of calls to the test function will be used.
:arg param: will be exposed to a later funcarg factory invocation
through the ``request.param`` attribute. It allows to
defer test fixture setup activities to when an actual
test is run.
"""
assert funcargs is None or isinstance(funcargs, dict)
if funcargs is not None:
for name in funcargs:
if name not in self.funcargnames:
pytest.fail("funcarg %r not used in this function." % name)
if id is None:
raise ValueError("id=None not allowed")
if id is _notexists:
id = len(self._calls)
id = str(id)
if id in self._ids:
raise ValueError("duplicate id %r" % id)
self._ids.add(id)
self._calls.append(CallSpec(funcargs, id, param))
class FuncargRequest:
""" A request for function arguments from a test function.
Note that there is an optional ``param`` attribute in case
there was an invocation to metafunc.addcall(param=...).
If no such call was done in a ``pytest_generate_tests``
hook, the attribute will not be present.
"""
_argprefix = "pytest_funcarg__"
_argname = None
class LookupError(LookupError):
""" error on performing funcarg request. """
def __init__(self, pyfuncitem):
self._pyfuncitem = pyfuncitem
if hasattr(pyfuncitem, '_requestparam'):
self.param = pyfuncitem._requestparam
extra = [obj for obj in (self.module, self.instance) if obj]
self._plugins = pyfuncitem.getplugins() + extra
self._funcargs = self._pyfuncitem.funcargs.copy()
self._name2factory = {}
self._currentarg = None
@property
def function(self):
""" function object of the test invocation. """
return self._pyfuncitem.obj
@property
def keywords(self):
""" keywords of the test function item.
.. versionadded:: 2.0
"""
return self._pyfuncitem.keywords
@property
def module(self):
""" module where the test function was collected. """
return self._pyfuncitem.getparent(pytest.Module).obj
@property
def cls(self):
""" class (can be None) where the test function was collected. """
clscol = self._pyfuncitem.getparent(pytest.Class)
if clscol:
return clscol.obj
@property
def instance(self):
""" instance (can be None) on which test function was collected. """
return py.builtin._getimself(self.function)
@property
def config(self):
""" the pytest config object associated with this request. """
return self._pyfuncitem.config
@property
def fspath(self):
""" the file system path of the test module which collected this test. """
return self._pyfuncitem.fspath
def applymarker(self, marker):
""" apply a marker to a single test function invocation.
This method is useful if you don't want to have a keyword/marker
on all function invocations.
:arg marker: a :py:class:`_pytest.mark.MarkDecorator` object
created by a call to ``py.test.mark.NAME(...)``.
"""
if not isinstance(marker, py.test.mark.XYZ.__class__):
raise ValueError("%r is not a py.test.mark.* object")
self._pyfuncitem.keywords[marker.markname] = marker
def cached_setup(self, setup, teardown=None, scope="module", extrakey=None):
""" return a testing resource managed by ``setup`` &
``teardown`` calls. ``scope`` and ``extrakey`` determine when the
``teardown`` function will be called so that subsequent calls to
``setup`` would recreate the resource.
:arg teardown: function receiving a previously setup resource.
:arg setup: a no-argument function creating a resource.
:arg scope: a string value out of ``function``, ``class``, ``module``
or ``session`` indicating the caching lifecycle of the resource.
:arg extrakey: added to internal caching key of (funcargname, scope).
"""
if not hasattr(self.config, '_setupcache'):
self.config._setupcache = {} # XXX weakref?
cachekey = (self._currentarg, self._getscopeitem(scope), extrakey)
cache = self.config._setupcache
try:
val = cache[cachekey]
except KeyError:
val = setup()
cache[cachekey] = val
if teardown is not None:
def finalizer():
del cache[cachekey]
teardown(val)
self._addfinalizer(finalizer, scope=scope)
return val
def getfuncargvalue(self, argname):
""" Retrieve a function argument by name for this test
function invocation. This allows one function argument factory
to call another function argument factory. If there are two
funcarg factories for the same test function argument the first
factory may use ``getfuncargvalue`` to call the second one and
do something additional with the resource.
"""
try:
return self._funcargs[argname]
except KeyError:
pass
if argname not in self._name2factory:
self._name2factory[argname] = self.config.pluginmanager.listattr(
plugins=self._plugins,
attrname=self._argprefix + str(argname)
)
#else: we are called recursively
if not self._name2factory[argname]:
self._raiselookupfailed(argname)
funcargfactory = self._name2factory[argname].pop()
oldarg = self._currentarg
self._currentarg = argname
try:
self._funcargs[argname] = res = funcargfactory(request=self)
finally:
self._currentarg = oldarg
return res
def _fillfuncargs(self):
self.config.hook.pytest_configure_funcargs.pcall(self._plugins, request=self)
def _getscopeitem(self, scope):
if scope == "function":
return self._pyfuncitem
elif scope == "session":
return None
elif scope == "class":
x = self._pyfuncitem.getparent(pytest.Class)
if x is not None:
return x
scope = "module"
if scope == "module":
return self._pyfuncitem.getparent(pytest.Module)
raise ValueError("unknown finalization scope %r" %(scope,))
def addfinalizer(self, finalizer):
"""add finalizer function to be called after test function
finished execution. """
self._addfinalizer(finalizer, scope="function")
def _addfinalizer(self, finalizer, scope):
colitem = self._getscopeitem(scope)
self._pyfuncitem.session._setupstate.addfinalizer(
finalizer=finalizer, colitem=colitem)
def __repr__(self):
return "<FuncargRequest for %r>" %(self._pyfuncitem)
def _raiselookupfailed(self, argname):
available = []
for plugin in self._plugins:
for name in vars(plugin):
if name.startswith(self._argprefix):
name = name[len(self._argprefix):]
if name not in available:
available.append(name)
fspath, lineno, msg = self._pyfuncitem.reportinfo()
msg = "LookupError: no factory found for function argument %r" % (argname,)
msg += "\n available funcargs: %s" %(", ".join(available),)
msg += "\n use 'py.test --funcargs [testpath]' for help on them."
raise self.LookupError(msg)
def showfuncargs(config):
from _pytest.main import Session
session = Session(config)
session.perform_collect()
if session.items:
plugins = session.items[0].getplugins()
else:
plugins = session.getplugins()
curdir = py.path.local()
tw = py.io.TerminalWriter()
verbose = config.getvalue("verbose")
for plugin in plugins:
available = []
for name, factory in vars(plugin).items():
if name.startswith(FuncargRequest._argprefix):
name = name[len(FuncargRequest._argprefix):]
if name not in available:
available.append([name, factory])
if available:
pluginname = plugin.__name__
for name, factory in available:
loc = getlocation(factory, curdir)
if verbose:
funcargspec = "%s -- %s" %(name, loc,)
else:
funcargspec = name
tw.line(funcargspec, green=True)
doc = factory.__doc__ or ""
if doc:
for line in doc.split("\n"):
tw.line(" " + line.strip())
else:
tw.line(" %s: no docstring available" %(loc,),
red=True)
def getlocation(function, curdir):
import inspect
fn = py.path.local(inspect.getfile(function))
lineno = py.builtin._getcode(function).co_firstlineno
if fn.relto(curdir):
fn = fn.relto(curdir)
return "%s:%d" %(fn, lineno+1)
# builtin pytest.raises helper
def raises(ExpectedException, *args, **kwargs):
""" assert that a code block/function call raises @ExpectedException
and raise a failure exception otherwise.
If using Python 2.5 or above, you may use this function as a
context manager::
>>> with raises(ZeroDivisionError):
... 1/0
Or you can specify a callable by passing a to-be-called lambda::
>>> raises(ZeroDivisionError, lambda: 1/0)
<ExceptionInfo ...>
or you can specify an arbitrary callable with arguments::
>>> def f(x): return 1/x
...
>>> raises(ZeroDivisionError, f, 0)
<ExceptionInfo ...>
>>> raises(ZeroDivisionError, f, x=0)
<ExceptionInfo ...>
A third possibility is to use a string which which will
be executed::
>>> raises(ZeroDivisionError, "f(0)")
<ExceptionInfo ...>
"""
__tracebackhide__ = True
if not args:
return RaisesContext(ExpectedException)
elif isinstance(args[0], str):
code, = args
assert isinstance(code, str)
frame = sys._getframe(1)
loc = frame.f_locals.copy()
loc.update(kwargs)
#print "raises frame scope: %r" % frame.f_locals
try:
code = py.code.Source(code).compile()
py.builtin.exec_(code, frame.f_globals, loc)
# XXX didn'T mean f_globals == f_locals something special?
# this is destroyed here ...
except ExpectedException:
return py.code.ExceptionInfo()
else:
func = args[0]
try:
func(*args[1:], **kwargs)
except ExpectedException:
return py.code.ExceptionInfo()
k = ", ".join(["%s=%r" % x for x in kwargs.items()])
if k:
k = ', ' + k
expr = '%s(%r%s)' %(getattr(func, '__name__', func), args, k)
pytest.fail("DID NOT RAISE")
class RaisesContext(object):
def __init__(self, ExpectedException):
self.ExpectedException = ExpectedException
self.excinfo = None
def __enter__(self):
self.excinfo = object.__new__(py.code.ExceptionInfo)
return self.excinfo
def __exit__(self, *tp):
__tracebackhide__ = True
if tp[0] is None:
pytest.fail("DID NOT RAISE")
self.excinfo.__init__(tp)
return issubclass(self.excinfo.type, self.ExpectedException)