symbian-qemu-0.9.1-12/python-2.6.1/Lib/test/test_urllib2.py
changeset 1 2fb8b9db1c86
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Lib/test/test_urllib2.py	Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,1119 @@
+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)