symbian-qemu-0.9.1-12/python-2.6.1/Lib/test/test_urllib2.py
author Gareth Stockwell <gareth.stockwell@accenture.com>
Wed, 22 Sep 2010 15:40:40 +0100
branchgraphics-phase-3
changeset 111 345f1c88c950
parent 1 2fb8b9db1c86
permissions -rw-r--r--
Fixes to syborg-graphicswrapper.vcproj These changes allow syborg-graphicswrapper to link against the hostthreadadapter and khronosapiwrapper libraries built by the graphics.simulator component. The .vcproj file uses relative paths, which requires that the following three packages are laid out as follows: os/ graphics adapt/ graphics.simulator qemu

import unittest
from test import test_support

import os
import socket
import StringIO

import urllib2
from urllib2 import Request, OpenerDirector

# XXX
# Request
# CacheFTPHandler (hard to write)
# parse_keqv_list, parse_http_list, HTTPDigestAuthHandler

class TrivialTests(unittest.TestCase):
    def test_trivial(self):
        # A couple trivial tests

        self.assertRaises(ValueError, urllib2.urlopen, 'bogus url')

        # XXX Name hacking to get this to work on Windows.
        fname = os.path.abspath(urllib2.__file__).replace('\\', '/')
        if fname[1:2] == ":":
            fname = fname[2:]
        # And more hacking to get it to work on MacOS. This assumes
        # urllib.pathname2url works, unfortunately...
        if os.name == 'mac':
            fname = '/' + fname.replace(':', '/')
        elif os.name == 'riscos':
            import string
            fname = os.expand(fname)
            fname = fname.translate(string.maketrans("/.", "./"))

        file_url = "file://%s" % fname
        f = urllib2.urlopen(file_url)

        buf = f.read()
        f.close()

    def test_parse_http_list(self):
        tests = [('a,b,c', ['a', 'b', 'c']),
                 ('path"o,l"og"i"cal, example', ['path"o,l"og"i"cal', 'example']),
                 ('a, b, "c", "d", "e,f", g, h', ['a', 'b', '"c"', '"d"', '"e,f"', 'g', 'h']),
                 ('a="b\\"c", d="e\\,f", g="h\\\\i"', ['a="b"c"', 'd="e,f"', 'g="h\\i"'])]
        for string, list in tests:
            self.assertEquals(urllib2.parse_http_list(string), list)


def test_request_headers_dict():
    """
    The Request.headers dictionary is not a documented interface.  It should
    stay that way, because the complete set of headers are only accessible
    through the .get_header(), .has_header(), .header_items() interface.
    However, .headers pre-dates those methods, and so real code will be using
    the dictionary.

    The introduction in 2.4 of those methods was a mistake for the same reason:
    code that previously saw all (urllib2 user)-provided headers in .headers
    now sees only a subset (and the function interface is ugly and incomplete).
    A better change would have been to replace .headers dict with a dict
    subclass (or UserDict.DictMixin instance?)  that preserved the .headers
    interface and also provided access to the "unredirected" headers.  It's
    probably too late to fix that, though.


    Check .capitalize() case normalization:

    >>> url = "http://example.com"
    >>> Request(url, headers={"Spam-eggs": "blah"}).headers["Spam-eggs"]
    'blah'
    >>> Request(url, headers={"spam-EggS": "blah"}).headers["Spam-eggs"]
    'blah'

    Currently, Request(url, "Spam-eggs").headers["Spam-Eggs"] raises KeyError,
    but that could be changed in future.

    """

def test_request_headers_methods():
    """
    Note the case normalization of header names here, to .capitalize()-case.
    This should be preserved for backwards-compatibility.  (In the HTTP case,
    normalization to .title()-case is done by urllib2 before sending headers to
    httplib).

    >>> url = "http://example.com"
    >>> r = Request(url, headers={"Spam-eggs": "blah"})
    >>> r.has_header("Spam-eggs")
    True
    >>> r.header_items()
    [('Spam-eggs', 'blah')]
    >>> r.add_header("Foo-Bar", "baz")
    >>> items = r.header_items()
    >>> items.sort()
    >>> items
    [('Foo-bar', 'baz'), ('Spam-eggs', 'blah')]

    Note that e.g. r.has_header("spam-EggS") is currently False, and
    r.get_header("spam-EggS") returns None, but that could be changed in
    future.

    >>> r.has_header("Not-there")
    False
    >>> print r.get_header("Not-there")
    None
    >>> r.get_header("Not-there", "default")
    'default'

    """


def test_password_manager(self):
    """
    >>> mgr = urllib2.HTTPPasswordMgr()
    >>> add = mgr.add_password
    >>> add("Some Realm", "http://example.com/", "joe", "password")
    >>> add("Some Realm", "http://example.com/ni", "ni", "ni")
    >>> add("c", "http://example.com/foo", "foo", "ni")
    >>> add("c", "http://example.com/bar", "bar", "nini")
    >>> add("b", "http://example.com/", "first", "blah")
    >>> add("b", "http://example.com/", "second", "spam")
    >>> add("a", "http://example.com", "1", "a")
    >>> add("Some Realm", "http://c.example.com:3128", "3", "c")
    >>> add("Some Realm", "d.example.com", "4", "d")
    >>> add("Some Realm", "e.example.com:3128", "5", "e")

    >>> mgr.find_user_password("Some Realm", "example.com")
    ('joe', 'password')
    >>> mgr.find_user_password("Some Realm", "http://example.com")
    ('joe', 'password')
    >>> mgr.find_user_password("Some Realm", "http://example.com/")
    ('joe', 'password')
    >>> mgr.find_user_password("Some Realm", "http://example.com/spam")
    ('joe', 'password')
    >>> mgr.find_user_password("Some Realm", "http://example.com/spam/spam")
    ('joe', 'password')
    >>> mgr.find_user_password("c", "http://example.com/foo")
    ('foo', 'ni')
    >>> mgr.find_user_password("c", "http://example.com/bar")
    ('bar', 'nini')

    Actually, this is really undefined ATM
##     Currently, we use the highest-level path where more than one match:

##     >>> mgr.find_user_password("Some Realm", "http://example.com/ni")
##     ('joe', 'password')

    Use latest add_password() in case of conflict:

    >>> mgr.find_user_password("b", "http://example.com/")
    ('second', 'spam')

    No special relationship between a.example.com and example.com:

    >>> mgr.find_user_password("a", "http://example.com/")
    ('1', 'a')
    >>> mgr.find_user_password("a", "http://a.example.com/")
    (None, None)

    Ports:

    >>> mgr.find_user_password("Some Realm", "c.example.com")
    (None, None)
    >>> mgr.find_user_password("Some Realm", "c.example.com:3128")
    ('3', 'c')
    >>> mgr.find_user_password("Some Realm", "http://c.example.com:3128")
    ('3', 'c')
    >>> mgr.find_user_password("Some Realm", "d.example.com")
    ('4', 'd')
    >>> mgr.find_user_password("Some Realm", "e.example.com:3128")
    ('5', 'e')

    """
    pass


def test_password_manager_default_port(self):
    """
    >>> mgr = urllib2.HTTPPasswordMgr()
    >>> add = mgr.add_password

    The point to note here is that we can't guess the default port if there's
    no scheme.  This applies to both add_password and find_user_password.

    >>> add("f", "http://g.example.com:80", "10", "j")
    >>> add("g", "http://h.example.com", "11", "k")
    >>> add("h", "i.example.com:80", "12", "l")
    >>> add("i", "j.example.com", "13", "m")
    >>> mgr.find_user_password("f", "g.example.com:100")
    (None, None)
    >>> mgr.find_user_password("f", "g.example.com:80")
    ('10', 'j')
    >>> mgr.find_user_password("f", "g.example.com")
    (None, None)
    >>> mgr.find_user_password("f", "http://g.example.com:100")
    (None, None)
    >>> mgr.find_user_password("f", "http://g.example.com:80")
    ('10', 'j')
    >>> mgr.find_user_password("f", "http://g.example.com")
    ('10', 'j')
    >>> mgr.find_user_password("g", "h.example.com")
    ('11', 'k')
    >>> mgr.find_user_password("g", "h.example.com:80")
    ('11', 'k')
    >>> mgr.find_user_password("g", "http://h.example.com:80")
    ('11', 'k')
    >>> mgr.find_user_password("h", "i.example.com")
    (None, None)
    >>> mgr.find_user_password("h", "i.example.com:80")
    ('12', 'l')
    >>> mgr.find_user_password("h", "http://i.example.com:80")
    ('12', 'l')
    >>> mgr.find_user_password("i", "j.example.com")
    ('13', 'm')
    >>> mgr.find_user_password("i", "j.example.com:80")
    (None, None)
    >>> mgr.find_user_password("i", "http://j.example.com")
    ('13', 'm')
    >>> mgr.find_user_password("i", "http://j.example.com:80")
    (None, None)

    """

class MockOpener:
    addheaders = []
    def open(self, req, data=None):
        self.req, self.data = req, data
    def error(self, proto, *args):
        self.proto, self.args = proto, args

class MockFile:
    def read(self, count=None): pass
    def readline(self, count=None): pass
    def close(self): pass

class MockHeaders(dict):
    def getheaders(self, name):
        return self.values()

class MockResponse(StringIO.StringIO):
    def __init__(self, code, msg, headers, data, url=None):
        StringIO.StringIO.__init__(self, data)
        self.code, self.msg, self.headers, self.url = code, msg, headers, url
    def info(self):
        return self.headers
    def geturl(self):
        return self.url

class MockCookieJar:
    def add_cookie_header(self, request):
        self.ach_req = request
    def extract_cookies(self, response, request):
        self.ec_req, self.ec_r = request, response

class FakeMethod:
    def __init__(self, meth_name, action, handle):
        self.meth_name = meth_name
        self.handle = handle
        self.action = action
    def __call__(self, *args):
        return self.handle(self.meth_name, self.action, *args)

class MockHandler:
    # useful for testing handler machinery
    # see add_ordered_mock_handlers() docstring
    handler_order = 500
    def __init__(self, methods):
        self._define_methods(methods)
    def _define_methods(self, methods):
        for spec in methods:
            if len(spec) == 2: name, action = spec
            else: name, action = spec, None
            meth = FakeMethod(name, action, self.handle)
            setattr(self.__class__, name, meth)
    def handle(self, fn_name, action, *args, **kwds):
        self.parent.calls.append((self, fn_name, args, kwds))
        if action is None:
            return None
        elif action == "return self":
            return self
        elif action == "return response":
            res = MockResponse(200, "OK", {}, "")
            return res
        elif action == "return request":
            return Request("http://blah/")
        elif action.startswith("error"):
            code = action[action.rfind(" ")+1:]
            try:
                code = int(code)
            except ValueError:
                pass
            res = MockResponse(200, "OK", {}, "")
            return self.parent.error("http", args[0], res, code, "", {})
        elif action == "raise":
            raise urllib2.URLError("blah")
        assert False
    def close(self): pass
    def add_parent(self, parent):
        self.parent = parent
        self.parent.calls = []
    def __lt__(self, other):
        if not hasattr(other, "handler_order"):
            # No handler_order, leave in original order.  Yuck.
            return True
        return self.handler_order < other.handler_order

def add_ordered_mock_handlers(opener, meth_spec):
    """Create MockHandlers and add them to an OpenerDirector.

    meth_spec: list of lists of tuples and strings defining methods to define
    on handlers.  eg:

    [["http_error", "ftp_open"], ["http_open"]]

    defines methods .http_error() and .ftp_open() on one handler, and
    .http_open() on another.  These methods just record their arguments and
    return None.  Using a tuple instead of a string causes the method to
    perform some action (see MockHandler.handle()), eg:

    [["http_error"], [("http_open", "return request")]]

    defines .http_error() on one handler (which simply returns None), and
    .http_open() on another handler, which returns a Request object.

    """
    handlers = []
    count = 0
    for meths in meth_spec:
        class MockHandlerSubclass(MockHandler): pass
        h = MockHandlerSubclass(meths)
        h.handler_order += count
        h.add_parent(opener)
        count = count + 1
        handlers.append(h)
        opener.add_handler(h)
    return handlers

def build_test_opener(*handler_instances):
    opener = OpenerDirector()
    for h in handler_instances:
        opener.add_handler(h)
    return opener

class MockHTTPHandler(urllib2.BaseHandler):
    # useful for testing redirections and auth
    # sends supplied headers and code as first response
    # sends 200 OK as second response
    def __init__(self, code, headers):
        self.code = code
        self.headers = headers
        self.reset()
    def reset(self):
        self._count = 0
        self.requests = []
    def http_open(self, req):
        import mimetools, httplib, copy
        from StringIO import StringIO
        self.requests.append(copy.deepcopy(req))
        if self._count == 0:
            self._count = self._count + 1
            name = httplib.responses[self.code]
            msg = mimetools.Message(StringIO(self.headers))
            return self.parent.error(
                "http", req, MockFile(), self.code, name, msg)
        else:
            self.req = req
            msg = mimetools.Message(StringIO("\r\n\r\n"))
            return MockResponse(200, "OK", msg, "", req.get_full_url())

class MockPasswordManager:
    def add_password(self, realm, uri, user, password):
        self.realm = realm
        self.url = uri
        self.user = user
        self.password = password
    def find_user_password(self, realm, authuri):
        self.target_realm = realm
        self.target_url = authuri
        return self.user, self.password


class OpenerDirectorTests(unittest.TestCase):

    def test_add_non_handler(self):
        class NonHandler(object):
            pass
        self.assertRaises(TypeError,
                          OpenerDirector().add_handler, NonHandler())

    def test_badly_named_methods(self):
        # test work-around for three methods that accidentally follow the
        # naming conventions for handler methods
        # (*_open() / *_request() / *_response())

        # These used to call the accidentally-named methods, causing a
        # TypeError in real code; here, returning self from these mock
        # methods would either cause no exception, or AttributeError.

        from urllib2 import URLError

        o = OpenerDirector()
        meth_spec = [
            [("do_open", "return self"), ("proxy_open", "return self")],
            [("redirect_request", "return self")],
            ]
        handlers = add_ordered_mock_handlers(o, meth_spec)
        o.add_handler(urllib2.UnknownHandler())
        for scheme in "do", "proxy", "redirect":
            self.assertRaises(URLError, o.open, scheme+"://example.com/")

    def test_handled(self):
        # handler returning non-None means no more handlers will be called
        o = OpenerDirector()
        meth_spec = [
            ["http_open", "ftp_open", "http_error_302"],
            ["ftp_open"],
            [("http_open", "return self")],
            [("http_open", "return self")],
            ]
        handlers = add_ordered_mock_handlers(o, meth_spec)

        req = Request("http://example.com/")
        r = o.open(req)
        # Second .http_open() gets called, third doesn't, since second returned
        # non-None.  Handlers without .http_open() never get any methods called
        # on them.
        # In fact, second mock handler defining .http_open() returns self
        # (instead of response), which becomes the OpenerDirector's return
        # value.
        self.assertEqual(r, handlers[2])
        calls = [(handlers[0], "http_open"), (handlers[2], "http_open")]
        for expected, got in zip(calls, o.calls):
            handler, name, args, kwds = got
            self.assertEqual((handler, name), expected)
            self.assertEqual(args, (req,))

    def test_handler_order(self):
        o = OpenerDirector()
        handlers = []
        for meths, handler_order in [
            ([("http_open", "return self")], 500),
            (["http_open"], 0),
            ]:
            class MockHandlerSubclass(MockHandler): pass
            h = MockHandlerSubclass(meths)
            h.handler_order = handler_order
            handlers.append(h)
            o.add_handler(h)

        r = o.open("http://example.com/")
        # handlers called in reverse order, thanks to their sort order
        self.assertEqual(o.calls[0][0], handlers[1])
        self.assertEqual(o.calls[1][0], handlers[0])

    def test_raise(self):
        # raising URLError stops processing of request
        o = OpenerDirector()
        meth_spec = [
            [("http_open", "raise")],
            [("http_open", "return self")],
            ]
        handlers = add_ordered_mock_handlers(o, meth_spec)

        req = Request("http://example.com/")
        self.assertRaises(urllib2.URLError, o.open, req)
        self.assertEqual(o.calls, [(handlers[0], "http_open", (req,), {})])

##     def test_error(self):
##         # XXX this doesn't actually seem to be used in standard library,
##         #  but should really be tested anyway...

    def test_http_error(self):
        # XXX http_error_default
        # http errors are a special case
        o = OpenerDirector()
        meth_spec = [
            [("http_open", "error 302")],
            [("http_error_400", "raise"), "http_open"],
            [("http_error_302", "return response"), "http_error_303",
             "http_error"],
            [("http_error_302")],
            ]
        handlers = add_ordered_mock_handlers(o, meth_spec)

        class Unknown:
            def __eq__(self, other): return True

        req = Request("http://example.com/")
        r = o.open(req)
        assert len(o.calls) == 2
        calls = [(handlers[0], "http_open", (req,)),
                 (handlers[2], "http_error_302",
                  (req, Unknown(), 302, "", {}))]
        for expected, got in zip(calls, o.calls):
            handler, method_name, args = expected
            self.assertEqual((handler, method_name), got[:2])
            self.assertEqual(args, got[2])

    def test_processors(self):
        # *_request / *_response methods get called appropriately
        o = OpenerDirector()
        meth_spec = [
            [("http_request", "return request"),
             ("http_response", "return response")],
            [("http_request", "return request"),
             ("http_response", "return response")],
            ]
        handlers = add_ordered_mock_handlers(o, meth_spec)

        req = Request("http://example.com/")
        r = o.open(req)
        # processor methods are called on *all* handlers that define them,
        # not just the first handler that handles the request
        calls = [
            (handlers[0], "http_request"), (handlers[1], "http_request"),
            (handlers[0], "http_response"), (handlers[1], "http_response")]

        for i, (handler, name, args, kwds) in enumerate(o.calls):
            if i < 2:
                # *_request
                self.assertEqual((handler, name), calls[i])
                self.assertEqual(len(args), 1)
                self.assert_(isinstance(args[0], Request))
            else:
                # *_response
                self.assertEqual((handler, name), calls[i])
                self.assertEqual(len(args), 2)
                self.assert_(isinstance(args[0], Request))
                # response from opener.open is None, because there's no
                # handler that defines http_open to handle it
                self.assert_(args[1] is None or
                             isinstance(args[1], MockResponse))


def sanepathname2url(path):
    import urllib
    urlpath = urllib.pathname2url(path)
    if os.name == "nt" and urlpath.startswith("///"):
        urlpath = urlpath[2:]
    # XXX don't ask me about the mac...
    return urlpath

class HandlerTests(unittest.TestCase):

    def test_ftp(self):
        class MockFTPWrapper:
            def __init__(self, data): self.data = data
            def retrfile(self, filename, filetype):
                self.filename, self.filetype = filename, filetype
                return StringIO.StringIO(self.data), len(self.data)

        class NullFTPHandler(urllib2.FTPHandler):
            def __init__(self, data): self.data = data
            def connect_ftp(self, user, passwd, host, port, dirs,
                            timeout=socket._GLOBAL_DEFAULT_TIMEOUT):
                self.user, self.passwd = user, passwd
                self.host, self.port = host, port
                self.dirs = dirs
                self.ftpwrapper = MockFTPWrapper(self.data)
                return self.ftpwrapper

        import ftplib
        data = "rheum rhaponicum"
        h = NullFTPHandler(data)
        o = h.parent = MockOpener()

        for url, host, port, type_, dirs, filename, mimetype in [
            ("ftp://localhost/foo/bar/baz.html",
             "localhost", ftplib.FTP_PORT, "I",
             ["foo", "bar"], "baz.html", "text/html"),
            ("ftp://localhost:80/foo/bar/",
             "localhost", 80, "D",
             ["foo", "bar"], "", None),
            ("ftp://localhost/baz.gif;type=a",
             "localhost", ftplib.FTP_PORT, "A",
             [], "baz.gif", None),  # XXX really this should guess image/gif
            ]:
            req = Request(url)
            req.timeout = None
            r = h.ftp_open(req)
            # ftp authentication not yet implemented by FTPHandler
            self.assert_(h.user == h.passwd == "")
            self.assertEqual(h.host, socket.gethostbyname(host))
            self.assertEqual(h.port, port)
            self.assertEqual(h.dirs, dirs)
            self.assertEqual(h.ftpwrapper.filename, filename)
            self.assertEqual(h.ftpwrapper.filetype, type_)
            headers = r.info()
            self.assertEqual(headers.get("Content-type"), mimetype)
            self.assertEqual(int(headers["Content-length"]), len(data))

    def test_file(self):
        import rfc822, socket
        h = urllib2.FileHandler()
        o = h.parent = MockOpener()

        TESTFN = test_support.TESTFN
        urlpath = sanepathname2url(os.path.abspath(TESTFN))
        towrite = "hello, world\n"
        urls = [
            "file://localhost%s" % urlpath,
            "file://%s" % urlpath,
            "file://%s%s" % (socket.gethostbyname('localhost'), urlpath),
            ]
        try:
            localaddr = socket.gethostbyname(socket.gethostname())
        except socket.gaierror:
            localaddr = ''
        if localaddr:
            urls.append("file://%s%s" % (localaddr, urlpath))

        for url in urls:
            f = open(TESTFN, "wb")
            try:
                try:
                    f.write(towrite)
                finally:
                    f.close()

                r = h.file_open(Request(url))
                try:
                    data = r.read()
                    headers = r.info()
                    newurl = r.geturl()
                finally:
                    r.close()
                stats = os.stat(TESTFN)
                modified = rfc822.formatdate(stats.st_mtime)
            finally:
                os.remove(TESTFN)
            self.assertEqual(data, towrite)
            self.assertEqual(headers["Content-type"], "text/plain")
            self.assertEqual(headers["Content-length"], "13")
            self.assertEqual(headers["Last-modified"], modified)

        for url in [
            "file://localhost:80%s" % urlpath,
            "file:///file_does_not_exist.txt",
            "file://%s:80%s/%s" % (socket.gethostbyname('localhost'),
                                   os.getcwd(), TESTFN),
            "file://somerandomhost.ontheinternet.com%s/%s" %
            (os.getcwd(), TESTFN),
            ]:
            try:
                f = open(TESTFN, "wb")
                try:
                    f.write(towrite)
                finally:
                    f.close()

                self.assertRaises(urllib2.URLError,
                                  h.file_open, Request(url))
            finally:
                os.remove(TESTFN)

        h = urllib2.FileHandler()
        o = h.parent = MockOpener()
        # XXXX why does // mean ftp (and /// mean not ftp!), and where
        #  is file: scheme specified?  I think this is really a bug, and
        #  what was intended was to distinguish between URLs like:
        # file:/blah.txt (a file)
        # file://localhost/blah.txt (a file)
        # file:///blah.txt (a file)
        # file://ftp.example.com/blah.txt (an ftp URL)
        for url, ftp in [
            ("file://ftp.example.com//foo.txt", True),
            ("file://ftp.example.com///foo.txt", False),
# XXXX bug: fails with OSError, should be URLError
            ("file://ftp.example.com/foo.txt", False),
            ]:
            req = Request(url)
            try:
                h.file_open(req)
            # XXXX remove OSError when bug fixed
            except (urllib2.URLError, OSError):
                self.assert_(not ftp)
            else:
                self.assert_(o.req is req)
                self.assertEqual(req.type, "ftp")

    def test_http(self):
        class MockHTTPResponse:
            def __init__(self, fp, msg, status, reason):
                self.fp = fp
                self.msg = msg
                self.status = status
                self.reason = reason
            def read(self):
                return ''
        class MockHTTPClass:
            def __init__(self):
                self.req_headers = []
                self.data = None
                self.raise_on_endheaders = False
            def __call__(self, host, timeout=socket._GLOBAL_DEFAULT_TIMEOUT):
                self.host = host
                self.timeout = timeout
                return self
            def set_debuglevel(self, level):
                self.level = level
            def request(self, method, url, body=None, headers={}):
                self.method = method
                self.selector = url
                self.req_headers += headers.items()
                self.req_headers.sort()
                if body:
                    self.data = body
                if self.raise_on_endheaders:
                    import socket
                    raise socket.error()
            def getresponse(self):
                return MockHTTPResponse(MockFile(), {}, 200, "OK")

        h = urllib2.AbstractHTTPHandler()
        o = h.parent = MockOpener()

        url = "http://example.com/"
        for method, data in [("GET", None), ("POST", "blah")]:
            req = Request(url, data, {"Foo": "bar"})
            req.timeout = None
            req.add_unredirected_header("Spam", "eggs")
            http = MockHTTPClass()
            r = h.do_open(http, req)

            # result attributes
            r.read; r.readline  # wrapped MockFile methods
            r.info; r.geturl  # addinfourl methods
            r.code, r.msg == 200, "OK"  # added from MockHTTPClass.getreply()
            hdrs = r.info()
            hdrs.get; hdrs.has_key  # r.info() gives dict from .getreply()
            self.assertEqual(r.geturl(), url)

            self.assertEqual(http.host, "example.com")
            self.assertEqual(http.level, 0)
            self.assertEqual(http.method, method)
            self.assertEqual(http.selector, "/")
            self.assertEqual(http.req_headers,
                             [("Connection", "close"),
                              ("Foo", "bar"), ("Spam", "eggs")])
            self.assertEqual(http.data, data)

        # check socket.error converted to URLError
        http.raise_on_endheaders = True
        self.assertRaises(urllib2.URLError, h.do_open, http, req)

        # check adding of standard headers
        o.addheaders = [("Spam", "eggs")]
        for data in "", None:  # POST, GET
            req = Request("http://example.com/", data)
            r = MockResponse(200, "OK", {}, "")
            newreq = h.do_request_(req)
            if data is None:  # GET
                self.assert_("Content-length" not in req.unredirected_hdrs)
                self.assert_("Content-type" not in req.unredirected_hdrs)
            else:  # POST
                self.assertEqual(req.unredirected_hdrs["Content-length"], "0")
                self.assertEqual(req.unredirected_hdrs["Content-type"],
                             "application/x-www-form-urlencoded")
            # XXX the details of Host could be better tested
            self.assertEqual(req.unredirected_hdrs["Host"], "example.com")
            self.assertEqual(req.unredirected_hdrs["Spam"], "eggs")

            # don't clobber existing headers
            req.add_unredirected_header("Content-length", "foo")
            req.add_unredirected_header("Content-type", "bar")
            req.add_unredirected_header("Host", "baz")
            req.add_unredirected_header("Spam", "foo")
            newreq = h.do_request_(req)
            self.assertEqual(req.unredirected_hdrs["Content-length"], "foo")
            self.assertEqual(req.unredirected_hdrs["Content-type"], "bar")
            self.assertEqual(req.unredirected_hdrs["Host"], "baz")
            self.assertEqual(req.unredirected_hdrs["Spam"], "foo")

    def test_http_doubleslash(self):
        # Checks that the presence of an unnecessary double slash in a url doesn't break anything
        # Previously, a double slash directly after the host could cause incorrect parsing of the url
        h = urllib2.AbstractHTTPHandler()
        o = h.parent = MockOpener()

        data = ""
        ds_urls = [
            "http://example.com/foo/bar/baz.html",
            "http://example.com//foo/bar/baz.html",
            "http://example.com/foo//bar/baz.html",
            "http://example.com/foo/bar//baz.html",
        ]

        for ds_url in ds_urls:
            ds_req = Request(ds_url, data)

            # Check whether host is determined correctly if there is no proxy
            np_ds_req = h.do_request_(ds_req)
            self.assertEqual(np_ds_req.unredirected_hdrs["Host"],"example.com")

            # Check whether host is determined correctly if there is a proxy
            ds_req.set_proxy("someproxy:3128",None)
            p_ds_req = h.do_request_(ds_req)
            self.assertEqual(p_ds_req.unredirected_hdrs["Host"],"example.com")

    def test_errors(self):
        h = urllib2.HTTPErrorProcessor()
        o = h.parent = MockOpener()

        url = "http://example.com/"
        req = Request(url)
        # all 2xx are passed through
        r = MockResponse(200, "OK", {}, "", url)
        newr = h.http_response(req, r)
        self.assert_(r is newr)
        self.assert_(not hasattr(o, "proto"))  # o.error not called
        r = MockResponse(202, "Accepted", {}, "", url)
        newr = h.http_response(req, r)
        self.assert_(r is newr)
        self.assert_(not hasattr(o, "proto"))  # o.error not called
        r = MockResponse(206, "Partial content", {}, "", url)
        newr = h.http_response(req, r)
        self.assert_(r is newr)
        self.assert_(not hasattr(o, "proto"))  # o.error not called
        # anything else calls o.error (and MockOpener returns None, here)
        r = MockResponse(502, "Bad gateway", {}, "", url)
        self.assert_(h.http_response(req, r) is None)
        self.assertEqual(o.proto, "http")  # o.error called
        self.assertEqual(o.args, (req, r, 502, "Bad gateway", {}))

    def test_cookies(self):
        cj = MockCookieJar()
        h = urllib2.HTTPCookieProcessor(cj)
        o = h.parent = MockOpener()

        req = Request("http://example.com/")
        r = MockResponse(200, "OK", {}, "")
        newreq = h.http_request(req)
        self.assert_(cj.ach_req is req is newreq)
        self.assertEquals(req.get_origin_req_host(), "example.com")
        self.assert_(not req.is_unverifiable())
        newr = h.http_response(req, r)
        self.assert_(cj.ec_req is req)
        self.assert_(cj.ec_r is r is newr)

    def test_redirect(self):
        from_url = "http://example.com/a.html"
        to_url = "http://example.com/b.html"
        h = urllib2.HTTPRedirectHandler()
        o = h.parent = MockOpener()

        # ordinary redirect behaviour
        for code in 301, 302, 303, 307:
            for data in None, "blah\nblah\n":
                method = getattr(h, "http_error_%s" % code)
                req = Request(from_url, data)
                req.add_header("Nonsense", "viking=withhold")
                if data is not None:
                    req.add_header("Content-Length", str(len(data)))
                req.add_unredirected_header("Spam", "spam")
                try:
                    method(req, MockFile(), code, "Blah",
                           MockHeaders({"location": to_url}))
                except urllib2.HTTPError:
                    # 307 in response to POST requires user OK
                    self.assert_(code == 307 and data is not None)
                self.assertEqual(o.req.get_full_url(), to_url)
                try:
                    self.assertEqual(o.req.get_method(), "GET")
                except AttributeError:
                    self.assert_(not o.req.has_data())

                # now it's a GET, there should not be headers regarding content
                # (possibly dragged from before being a POST)
                headers = [x.lower() for x in o.req.headers]
                self.assertTrue("content-length" not in headers)
                self.assertTrue("content-type" not in headers)

                self.assertEqual(o.req.headers["Nonsense"],
                                 "viking=withhold")
                self.assert_("Spam" not in o.req.headers)
                self.assert_("Spam" not in o.req.unredirected_hdrs)

        # loop detection
        req = Request(from_url)
        def redirect(h, req, url=to_url):
            h.http_error_302(req, MockFile(), 302, "Blah",
                             MockHeaders({"location": url}))
        # Note that the *original* request shares the same record of
        # redirections with the sub-requests caused by the redirections.

        # detect infinite loop redirect of a URL to itself
        req = Request(from_url, origin_req_host="example.com")
        count = 0
        try:
            while 1:
                redirect(h, req, "http://example.com/")
                count = count + 1
        except urllib2.HTTPError:
            # don't stop until max_repeats, because cookies may introduce state
            self.assertEqual(count, urllib2.HTTPRedirectHandler.max_repeats)

        # detect endless non-repeating chain of redirects
        req = Request(from_url, origin_req_host="example.com")
        count = 0
        try:
            while 1:
                redirect(h, req, "http://example.com/%d" % count)
                count = count + 1
        except urllib2.HTTPError:
            self.assertEqual(count,
                             urllib2.HTTPRedirectHandler.max_redirections)

    def test_cookie_redirect(self):
        # cookies shouldn't leak into redirected requests
        from cookielib import CookieJar

        from test.test_cookielib import interact_netscape

        cj = CookieJar()
        interact_netscape(cj, "http://www.example.com/", "spam=eggs")
        hh = MockHTTPHandler(302, "Location: http://www.cracker.com/\r\n\r\n")
        hdeh = urllib2.HTTPDefaultErrorHandler()
        hrh = urllib2.HTTPRedirectHandler()
        cp = urllib2.HTTPCookieProcessor(cj)
        o = build_test_opener(hh, hdeh, hrh, cp)
        o.open("http://www.example.com/")
        self.assert_(not hh.req.has_header("Cookie"))

    def test_proxy(self):
        o = OpenerDirector()
        ph = urllib2.ProxyHandler(dict(http="proxy.example.com:3128"))
        o.add_handler(ph)
        meth_spec = [
            [("http_open", "return response")]
            ]
        handlers = add_ordered_mock_handlers(o, meth_spec)

        req = Request("http://acme.example.com/")
        self.assertEqual(req.get_host(), "acme.example.com")
        r = o.open(req)
        self.assertEqual(req.get_host(), "proxy.example.com:3128")

        self.assertEqual([(handlers[0], "http_open")],
                         [tup[0:2] for tup in o.calls])

    def test_basic_auth(self, quote_char='"'):
        opener = OpenerDirector()
        password_manager = MockPasswordManager()
        auth_handler = urllib2.HTTPBasicAuthHandler(password_manager)
        realm = "ACME Widget Store"
        http_handler = MockHTTPHandler(
            401, 'WWW-Authenticate: Basic realm=%s%s%s\r\n\r\n' %
            (quote_char, realm, quote_char) )
        opener.add_handler(auth_handler)
        opener.add_handler(http_handler)
        self._test_basic_auth(opener, auth_handler, "Authorization",
                              realm, http_handler, password_manager,
                              "http://acme.example.com/protected",
                              "http://acme.example.com/protected",
                              )

    def test_basic_auth_with_single_quoted_realm(self):
        self.test_basic_auth(quote_char="'")

    def test_proxy_basic_auth(self):
        opener = OpenerDirector()
        ph = urllib2.ProxyHandler(dict(http="proxy.example.com:3128"))
        opener.add_handler(ph)
        password_manager = MockPasswordManager()
        auth_handler = urllib2.ProxyBasicAuthHandler(password_manager)
        realm = "ACME Networks"
        http_handler = MockHTTPHandler(
            407, 'Proxy-Authenticate: Basic realm="%s"\r\n\r\n' % realm)
        opener.add_handler(auth_handler)
        opener.add_handler(http_handler)
        self._test_basic_auth(opener, auth_handler, "Proxy-authorization",
                              realm, http_handler, password_manager,
                              "http://acme.example.com:3128/protected",
                              "proxy.example.com:3128",
                              )

    def test_basic_and_digest_auth_handlers(self):
        # HTTPDigestAuthHandler threw an exception if it couldn't handle a 40*
        # response (http://python.org/sf/1479302), where it should instead
        # return None to allow another handler (especially
        # HTTPBasicAuthHandler) to handle the response.

        # Also (http://python.org/sf/14797027, RFC 2617 section 1.2), we must
        # try digest first (since it's the strongest auth scheme), so we record
        # order of calls here to check digest comes first:
        class RecordingOpenerDirector(OpenerDirector):
            def __init__(self):
                OpenerDirector.__init__(self)
                self.recorded = []
            def record(self, info):
                self.recorded.append(info)
        class TestDigestAuthHandler(urllib2.HTTPDigestAuthHandler):
            def http_error_401(self, *args, **kwds):
                self.parent.record("digest")
                urllib2.HTTPDigestAuthHandler.http_error_401(self,
                                                             *args, **kwds)
        class TestBasicAuthHandler(urllib2.HTTPBasicAuthHandler):
            def http_error_401(self, *args, **kwds):
                self.parent.record("basic")
                urllib2.HTTPBasicAuthHandler.http_error_401(self,
                                                            *args, **kwds)

        opener = RecordingOpenerDirector()
        password_manager = MockPasswordManager()
        digest_handler = TestDigestAuthHandler(password_manager)
        basic_handler = TestBasicAuthHandler(password_manager)
        realm = "ACME Networks"
        http_handler = MockHTTPHandler(
            401, 'WWW-Authenticate: Basic realm="%s"\r\n\r\n' % realm)
        opener.add_handler(basic_handler)
        opener.add_handler(digest_handler)
        opener.add_handler(http_handler)

        # check basic auth isn't blocked by digest handler failing
        self._test_basic_auth(opener, basic_handler, "Authorization",
                              realm, http_handler, password_manager,
                              "http://acme.example.com/protected",
                              "http://acme.example.com/protected",
                              )
        # check digest was tried before basic (twice, because
        # _test_basic_auth called .open() twice)
        self.assertEqual(opener.recorded, ["digest", "basic"]*2)

    def _test_basic_auth(self, opener, auth_handler, auth_header,
                         realm, http_handler, password_manager,
                         request_url, protected_url):
        import base64
        user, password = "wile", "coyote"

        # .add_password() fed through to password manager
        auth_handler.add_password(realm, request_url, user, password)
        self.assertEqual(realm, password_manager.realm)
        self.assertEqual(request_url, password_manager.url)
        self.assertEqual(user, password_manager.user)
        self.assertEqual(password, password_manager.password)

        r = opener.open(request_url)

        # should have asked the password manager for the username/password
        self.assertEqual(password_manager.target_realm, realm)
        self.assertEqual(password_manager.target_url, protected_url)

        # expect one request without authorization, then one with
        self.assertEqual(len(http_handler.requests), 2)
        self.assertFalse(http_handler.requests[0].has_header(auth_header))
        userpass = '%s:%s' % (user, password)
        auth_hdr_value = 'Basic '+base64.encodestring(userpass).strip()
        self.assertEqual(http_handler.requests[1].get_header(auth_header),
                         auth_hdr_value)

        # if the password manager can't find a password, the handler won't
        # handle the HTTP auth error
        password_manager.user = password_manager.password = None
        http_handler.reset()
        r = opener.open(request_url)
        self.assertEqual(len(http_handler.requests), 1)
        self.assertFalse(http_handler.requests[0].has_header(auth_header))


class MiscTests(unittest.TestCase):

    def test_build_opener(self):
        class MyHTTPHandler(urllib2.HTTPHandler): pass
        class FooHandler(urllib2.BaseHandler):
            def foo_open(self): pass
        class BarHandler(urllib2.BaseHandler):
            def bar_open(self): pass

        build_opener = urllib2.build_opener

        o = build_opener(FooHandler, BarHandler)
        self.opener_has_handler(o, FooHandler)
        self.opener_has_handler(o, BarHandler)

        # can take a mix of classes and instances
        o = build_opener(FooHandler, BarHandler())
        self.opener_has_handler(o, FooHandler)
        self.opener_has_handler(o, BarHandler)

        # subclasses of default handlers override default handlers
        o = build_opener(MyHTTPHandler)
        self.opener_has_handler(o, MyHTTPHandler)

        # a particular case of overriding: default handlers can be passed
        # in explicitly
        o = build_opener()
        self.opener_has_handler(o, urllib2.HTTPHandler)
        o = build_opener(urllib2.HTTPHandler)
        self.opener_has_handler(o, urllib2.HTTPHandler)
        o = build_opener(urllib2.HTTPHandler())
        self.opener_has_handler(o, urllib2.HTTPHandler)

        # Issue2670: multiple handlers sharing the same base class
        class MyOtherHTTPHandler(urllib2.HTTPHandler): pass
        o = build_opener(MyHTTPHandler, MyOtherHTTPHandler)
        self.opener_has_handler(o, MyHTTPHandler)
        self.opener_has_handler(o, MyOtherHTTPHandler)

    def opener_has_handler(self, opener, handler_class):
        for h in opener.handlers:
            if h.__class__ == handler_class:
                break
        else:
            self.assert_(False)


def test_main(verbose=None):
    from test import test_urllib2
    test_support.run_doctest(test_urllib2, verbose)
    test_support.run_doctest(urllib2, verbose)
    tests = (TrivialTests,
             OpenerDirectorTests,
             HandlerTests,
             MiscTests)
    test_support.run_unittest(*tests)

if __name__ == "__main__":
    test_main(verbose=True)