[Python-checkins] python/dist/src/Lib/test test_module.py,NONE,1.1

[gvanrossum@users.sourceforge.net]

Update of /cvsroot/python/python/dist/src/Lib/test
In directory usw-pr-cvs1:/tmp/cvs-serv14104

Added Files:
	test_module.py 
Log Message:
Surprising fix for SF bug 563060: module can be used as base class.

Change the module constructor (module_init) to have the signature
__init__(name:str, doc=None); this prevents the call from type_new()
to succeed.  While we're at it, prevent repeated calling of
module_init for the same module from leaking the dict, changing the
semantics so that __dict__ is only initialized if NULL.

Also adding a unittest, test_module.py.

This is an incompatibility with 2.2, if anybody was instantiating the
module class before, their argument list was probably empty; so this
can't be backported to 2.2.x.


--- NEW FILE: test_module.py ---
# Test the module type

from test_support import verify, vereq, verbose, TestFailed

import sys
module = type(sys)

# An uninitialized module has no __dict__ or __name__, and __doc__ is None
foo = module.__new__(module)
verify(foo.__dict__ is None)
try:
    s = foo.__name__
except AttributeError:
    pass
else:
    raise TestFailed, "__name__ = %s" % repr(s)
vereq(foo.__doc__, None)

# Regularly initialized module, no docstring
foo = module("foo")
vereq(foo.__name__, "foo")
vereq(foo.__doc__, None)
vereq(foo.__dict__, {"__name__": "foo", "__doc__": None})

# ASCII docstring
foo = module("foo", "foodoc")
vereq(foo.__name__, "foo")
vereq(foo.__doc__, "foodoc")
vereq(foo.__dict__, {"__name__": "foo", "__doc__": "foodoc"})

# Unicode docstring
foo = module("foo", u"foodoc\u1234")
vereq(foo.__name__, "foo")
vereq(foo.__doc__, u"foodoc\u1234")
vereq(foo.__dict__, {"__name__": "foo", "__doc__": u"foodoc\u1234"})

# Reinitialization should not replace the __dict__
foo.bar = 42
d = foo.__dict__
foo.__init__("foo", "foodoc")
vereq(foo.__name__, "foo")
vereq(foo.__doc__, "foodoc")
vereq(foo.bar, 42)
vereq(foo.__dict__, {"__name__": "foo", "__doc__": "foodoc", "bar": 42})
verify(foo.__dict__ is d)

if verbose:
    print "All OK"