def test_traceback_getcrashentry(self):

       def i():

           __tracebackhide__ = True

           raise ValueError 

       def h():

           i()

       def g():

           __tracebackhide__ = True

           h()

       def f():

           g()

->     excinfo = py.test.raises(ValueError, f)

       tb = excinfo.traceback

       entry = tb.getcrashentry()

       co = py.code.Code(h)

       assert entry.frame.code.path == co.path

       assert entry.lineno == co.firstlineno + 1 

       assert entry.frame.code.name == 'h'

   def raises(ExpectedException, *args, **kwargs):

       """ raise AssertionError, if target code does not raise the expected

           exception.

       """

       assert args

       __tracebackhide__ = True 

       if isinstance(args[0], str):

           expr, = args

           assert isinstance(expr, str)

           frame = sys._getframe(1)

           loc = frame.f_locals.copy()

           loc.update(kwargs)

           #print "raises frame scope: %r" % frame.f_locals

           source = py.code.Source(expr)

           try:

               exec source.compile() in frame.f_globals, loc

               #del __traceback__

               # XXX didn'T mean f_globals == f_locals something special?

               #     this is destroyed here ...

           except ExpectedException:

               return py.code.ExceptionInfo()

       else:

           func = args[0]

           assert callable

           try:

               func(*args[1:], **kwargs)

               #del __traceback__

           except ExpectedException:

->             return py.code.ExceptionInfo()

           k = ", ".join(["%s=%r" % x for x in kwargs.items()])

           if k:

               k = ', ' + k

           expr = '%s(%r%s)' %(func.__name__, args, k)

       raise ExceptionFailure(msg="DID NOT RAISE", 

                              expr=args, expected=ExpectedException)