Embed git in package

package.ps1 fetches PortableGit and embeds it in the package. This
eliminates all but one runtime dependency (MSVC++ Redistributable).

* Move Python into a new FOSS folder.

1 files changed, 1569 insertions, 0 deletions

diff --git a/FOSS/Python/Dependencies/future-0.18.2/tests/test_future/test_urllib2.py b/FOSS/Python/Dependencies/future-0.18.2/tests/test_future/test_urllib2.py
new file mode 100644
index 0000000..2d69dad
--- /dev/null
+++ b/FOSS/Python/Dependencies/future-0.18.2/tests/test_future/test_urllib2.py
@@ -0,0 +1,1569 @@
+from __future__ import absolute_import, division, unicode_literals
+import os
+import io
+import socket
+import array
+import sys
+
+import http.client
+from future.standard_library import install_aliases
+from future.backports.test import support
+import future.backports.urllib.request as urllib_request
+# The proxy bypass method imported below has logic specific to the OSX
+# proxy config data structure but is testable on all platforms.
+from future.backports.urllib.request import Request, OpenerDirector, _proxy_bypass_macosx_sysconf
+import future.backports.urllib.error as urllib_error
+from future.tests.base import unittest, skip26
+from future.builtins import bytes, dict, int, open, str, zip
+from future.utils import text_to_native_str
+
+install_aliases()   # for base64.encodebytes on Py2
+
+# from future.tests.test_http_cookiejar import interact_netscape
+
+class FakeResponse(object):
+    def __init__(self, headers=[], url=None):
+        """
+        headers: list of RFC822-style 'Key: value' strings
+        """
+        import email
+        # The email.message_from_string is available on both Py2.7 and Py3.3
+        self._headers = email.message_from_string("\n".join(headers))
+        self._url = url
+    def info(self): return self._headers
+
+
+def interact_netscape(cookiejar, url, *set_cookie_hdrs):
+    return _interact(cookiejar, url, set_cookie_hdrs, "Set-Cookie")
+
+def _interact(cookiejar, url, set_cookie_hdrs, hdr_name):
+    """Perform a single request / response cycle, returning Cookie: header."""
+    req = urllib_request.Request(url)
+    cookiejar.add_cookie_header(req)
+    cookie_hdr = req.get_header("Cookie", "")
+    headers = []
+    for hdr in set_cookie_hdrs:
+        headers.append("%s: %s" % (hdr_name, hdr))
+    res = FakeResponse(headers, url)
+    cookiejar.extract_cookies(res, req)
+    return cookie_hdr
+
+
+# XXX
+# Request
+# CacheFTPHandler (hard to write)
+# parse_keqv_list, parse_http_list, HTTPDigestAuthHandler
+
+class TrivialTests(unittest.TestCase):
+
+    def test___all__(self):
+        # Verify which names are exposed
+        for module in 'request', 'response', 'parse', 'error', 'robotparser':
+            context = {}
+            exec('from future.backports.urllib.%s import *' % module, context)
+            del context['__builtins__']
+            if module == 'request' and os.name == 'nt':
+                u, p = context.pop('url2pathname'), context.pop('pathname2url')
+                self.assertEqual(u.__module__, 'nturl2path')
+                self.assertEqual(p.__module__, 'nturl2path')
+            for k, v in context.items():
+                self.assertEqual(v.__module__, 'future.backports.urllib.%s' % module,
+                    "%r is exposed in 'future.backports.urllib.%s' but defined in %r" %
+                    (k, module, v.__module__))
+
+    def test_trivial(self):
+        # A couple trivial tests
+
+        self.assertRaises(ValueError, urllib_request.urlopen, 'bogus url')
+
+        # XXX Name hacking to get this to work on Windows.
+        fname = os.path.abspath(urllib_request.__file__).replace('\\', '/')
+
+        if os.name == 'nt':
+            file_url = "file:///%s" % fname
+        else:
+            file_url = "file://%s" % fname
+
+        f = urllib_request.urlopen(file_url)
+
+        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.assertEqual(urllib_request.parse_http_list(string), list)
+
+    def test_URLError_reasonstr(self):
+        err = urllib_error.URLError('reason')
+        self.assertIn(err.reason, str(err))
+
+class RequestHdrsTests(unittest.TestCase):
+
+    def test_request_headers_dict(self):
+        """
+        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.
+
+        """
+        url = "http://example.com"
+        self.assertEqual(Request(url,
+                                 headers={"Spam-eggs": "blah"}
+                                 ).headers["Spam-eggs"], "blah")
+        self.assertEqual(Request(url,
+                                 headers={"spam-EggS": "blah"}
+                                 ).headers["Spam-eggs"], "blah")
+
+    def test_request_headers_methods(self):
+        """
+        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
+        http.client).
+
+        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.
+
+        Method r.remove_header should remove items both from r.headers and
+        r.unredirected_hdrs dictionaries
+        """
+        url = "http://example.com"
+        req = Request(url, headers={"Spam-eggs": "blah"})
+        self.assertTrue(req.has_header("Spam-eggs"))
+        self.assertEqual(req.header_items(), [('Spam-eggs', 'blah')])
+
+        req.add_header("Foo-Bar", "baz")
+        self.assertEqual(sorted(req.header_items()),
+                         [('Foo-bar', 'baz'), ('Spam-eggs', 'blah')])
+        self.assertFalse(req.has_header("Not-there"))
+        self.assertIsNone(req.get_header("Not-there"))
+        self.assertEqual(req.get_header("Not-there", "default"), "default")
+
+
+    def test_password_manager(self):
+        mgr = urllib_request.HTTPPasswordMgr()
+        add = mgr.add_password
+        find_user_pass = mgr.find_user_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")
+
+        self.assertEqual(find_user_pass("Some Realm", "example.com"),
+                         ('joe', 'password'))
+
+        #self.assertEqual(find_user_pass("Some Realm", "http://example.com/ni"),
+        #                ('ni', 'ni'))
+
+        self.assertEqual(find_user_pass("Some Realm", "http://example.com"),
+                         ('joe', 'password'))
+        self.assertEqual(find_user_pass("Some Realm", "http://example.com/"),
+                         ('joe', 'password'))
+        self.assertEqual(
+            find_user_pass("Some Realm", "http://example.com/spam"),
+            ('joe', 'password'))
+        self.assertEqual(
+            find_user_pass("Some Realm", "http://example.com/spam/spam"),
+            ('joe', 'password'))
+        self.assertEqual(find_user_pass("c", "http://example.com/foo"),
+                         ('foo', 'ni'))
+        self.assertEqual(find_user_pass("c", "http://example.com/bar"),
+                         ('bar', 'nini'))
+        self.assertEqual(find_user_pass("b", "http://example.com/"),
+                         ('second', 'spam'))
+
+        # No special relationship between a.example.com and example.com:
+
+        self.assertEqual(find_user_pass("a", "http://example.com/"),
+                         ('1', 'a'))
+        self.assertEqual(find_user_pass("a", "http://a.example.com/"),
+                         (None, None))
+
+        # Ports:
+
+        self.assertEqual(find_user_pass("Some Realm", "c.example.com"),
+                         (None, None))
+        self.assertEqual(find_user_pass("Some Realm", "c.example.com:3128"),
+                         ('3', 'c'))
+        self.assertEqual(
+            find_user_pass("Some Realm", "http://c.example.com:3128"),
+            ('3', 'c'))
+        self.assertEqual(find_user_pass("Some Realm", "d.example.com"),
+                         ('4', 'd'))
+        self.assertEqual(find_user_pass("Some Realm", "e.example.com:3128"),
+                         ('5', 'e'))
+
+    def test_password_manager_default_port(self):
+        """
+        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.
+        """
+        mgr = urllib_request.HTTPPasswordMgr()
+        add = mgr.add_password
+        find_user_pass = mgr.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")
+        self.assertEqual(find_user_pass("f", "g.example.com:100"),
+                         (None, None))
+        self.assertEqual(find_user_pass("f", "g.example.com:80"),
+                         ('10', 'j'))
+        self.assertEqual(find_user_pass("f", "g.example.com"),
+                         (None, None))
+        self.assertEqual(find_user_pass("f", "http://g.example.com:100"),
+                         (None, None))
+        self.assertEqual(find_user_pass("f", "http://g.example.com:80"),
+                         ('10', 'j'))
+        self.assertEqual(find_user_pass("f", "http://g.example.com"),
+                         ('10', 'j'))
+        self.assertEqual(find_user_pass("g", "h.example.com"), ('11', 'k'))
+        self.assertEqual(find_user_pass("g", "h.example.com:80"), ('11', 'k'))
+        self.assertEqual(find_user_pass("g", "http://h.example.com:80"),
+                         ('11', 'k'))
+        self.assertEqual(find_user_pass("h", "i.example.com"), (None, None))
+        self.assertEqual(find_user_pass("h", "i.example.com:80"), ('12', 'l'))
+        self.assertEqual(find_user_pass("h", "http://i.example.com:80"),
+                         ('12', 'l'))
+        self.assertEqual(find_user_pass("i", "j.example.com"), ('13', 'm'))
+        self.assertEqual(find_user_pass("i", "j.example.com:80"),
+                         (None, None))
+        self.assertEqual(find_user_pass("i", "http://j.example.com"),
+                         ('13', 'm'))
+        self.assertEqual(find_user_pass("i", "http://j.example.com:80"),
+                         (None, None))
+
+
+class MockOpener(object):
+    addheaders = []
+    def open(self, req, data=None, timeout=socket._GLOBAL_DEFAULT_TIMEOUT):
+        self.req, self.data, self.timeout = req, data, timeout
+    def error(self, proto, *args):
+        self.proto, self.args = proto, args
+
+class MockFile(object):
+    def read(self, count=None): pass
+    def readline(self, count=None): pass
+    def close(self): pass
+
+class MockHeaders(dict):
+    def getheaders(self, name):
+        return list(self.values())
+
+class MockResponse(io.StringIO):
+    def __init__(self, code, msg, headers, data, url=None):
+        io.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(object):
+    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(object):
+    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 MockHTTPResponse(io.IOBase):
+    def __init__(self, fp, msg, status, reason):
+        self.fp = fp
+        self.msg = msg
+        self.status = status
+        self.reason = reason
+        self.code = 200
+
+    def read(self):
+        return ''
+
+    def info(self):
+        return {}
+
+    def geturl(self):
+        return self.url
+
+
+class MockHTTPClass(object):
+    def __init__(self):
+        self.level = 0
+        self.req_headers = []
+        self.data = None
+        self.raise_on_endheaders = False
+        self.sock = None
+        self._tunnel_headers = {}
+
+    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 set_tunnel(self, host, port=None, headers=None):
+        self._tunnel_host = host
+        self._tunnel_port = port
+        if headers:
+            self._tunnel_headers = headers
+        else:
+            self._tunnel_headers.clear()
+
+    def request(self, method, url, body=None, headers=None):
+        self.method = method
+        self.selector = url
+        if headers is not None:
+            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")
+
+    def close(self):
+        pass
+
+class MockHandler(object):
+    # 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 urllib_error.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(urllib_request.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 future.backports.email as email
+        import copy
+        self.requests.append(copy.deepcopy(req))
+        if self._count == 0:
+            self._count = self._count + 1
+            name = http.client.responses[self.code]
+            msg = email.message_from_string(self.headers)
+            return self.parent.error(
+                "http", req, MockFile(), self.code, name, msg)
+        else:
+            self.req = req
+            msg = email.message_from_string("\r\n\r\n")
+            return MockResponse(200, "OK", msg, "", req.get_full_url())
+
+class MockHTTPSHandler(urllib_request.AbstractHTTPHandler):
+    # Useful for testing the Proxy-Authorization request by verifying the
+    # properties of httpcon
+
+    def __init__(self):
+        urllib_request.AbstractHTTPHandler.__init__(self)
+        self.httpconn = MockHTTPClass()
+
+    def https_open(self, req):
+        return self.do_open(self.httpconn, req)
+
+class MockPasswordManager(object):
+    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 future.backports.urllib.error import URLError
+
+        o = OpenerDirector()
+        meth_spec = [
+            [("do_open", "return self"), ("proxy_open", "return self")],
+            [("redirect_request", "return self")],
+            ]
+        add_ordered_mock_handlers(o, meth_spec)
+        o.add_handler(urllib_request.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)
+
+        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(urllib_error.URLError, o.open, req)
+        self.assertEqual(o.calls, [(handlers[0], "http_open", (req,), {})])
+
+    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(object):
+            def __eq__(self, other): return True
+
+        req = Request("http://example.com/")
+        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/")
+        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.assertIsInstance(args[0], Request)
+            else:
+                # *_response
+                self.assertEqual((handler, name), calls[i])
+                self.assertEqual(len(args), 2)
+                self.assertIsInstance(args[0], Request)
+                # response from opener.open is None, because there's no
+                # handler that defines http_open to handle it
+                self.assertTrue(args[1] is None or
+                             isinstance(args[1], MockResponse))
+
+    def test_method_deprecations(self):
+        req = Request("http://www.example.com")
+
+        with self.assertWarns(DeprecationWarning):
+            req.add_data("data")
+        with self.assertWarns(DeprecationWarning):
+            req.get_data()
+        with self.assertWarns(DeprecationWarning):
+            req.has_data()
+        with self.assertWarns(DeprecationWarning):
+            req.get_host()
+        with self.assertWarns(DeprecationWarning):
+            req.get_selector()
+        with self.assertWarns(DeprecationWarning):
+            req.is_unverifiable()
+        with self.assertWarns(DeprecationWarning):
+            req.get_origin_req_host()
+        with self.assertWarns(DeprecationWarning):
+            req.get_type()
+
+
+def sanepathname2url(path):
+    try:
+        path.encode("utf-8")
+    except UnicodeEncodeError:
+        raise unittest.SkipTest("path is not encodable to utf8")
+    urlpath = urllib_request.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(object):
+            def __init__(self, data): self.data = data
+            def retrfile(self, filename, filetype):
+                self.filename, self.filetype = filename, filetype
+                return io.StringIO(self.data), len(self.data)
+            def close(self): pass
+
+        class NullFTPHandler(urllib_request.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)
+        h.parent = MockOpener()
+
+        # MIME guessing works in Python 3.8!
+        guessed_mime = None
+        if sys.hexversion >= 0x03080000:
+            guessed_mime = "image/gif"
+        for url, host, port, user, passwd, type_, dirs, filename, mimetype in [
+            ("ftp://localhost/foo/bar/baz.html",
+             "localhost", ftplib.FTP_PORT, "", "", "I",
+             ["foo", "bar"], "baz.html", "text/html"),
+            ("ftp://parrot@localhost/foo/bar/baz.html",
+             "localhost", ftplib.FTP_PORT, "parrot", "", "I",
+             ["foo", "bar"], "baz.html", "text/html"),
+            ("ftp://%25parrot@localhost/foo/bar/baz.html",
+             "localhost", ftplib.FTP_PORT, "%parrot", "", "I",
+             ["foo", "bar"], "baz.html", "text/html"),
+            ("ftp://%2542parrot@localhost/foo/bar/baz.html",
+             "localhost", ftplib.FTP_PORT, "%42parrot", "", "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", guessed_mime),
+            ]:
+            req = Request(url)
+            req.timeout = None
+            r = h.ftp_open(req)
+            # ftp authentication not yet implemented by FTPHandler
+            self.assertEqual(h.user, user)
+            self.assertEqual(h.passwd, 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 future.backports.email.utils as email_utils
+        import socket
+        h = urllib_request.FileHandler()
+        o = h.parent = MockOpener()
+
+        TESTFN = support.TESTFN
+        urlpath = sanepathname2url(os.path.abspath(TESTFN))
+        towrite = b"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()
+                    respurl = r.geturl()
+                finally:
+                    r.close()
+                stats = os.stat(TESTFN)
+                modified = email_utils.formatdate(stats.st_mtime, usegmt=True)
+            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)
+            self.assertEqual(respurl, url)
+
+        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(urllib_error.URLError,
+                                  h.file_open, Request(url))
+            finally:
+                os.remove(TESTFN)
+
+        h = urllib_request.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", False),
+            ("file://ftp.example.com///foo.txt", False),
+# XXXX bug: fails with OSError, should be URLError
+            ("file://ftp.example.com/foo.txt", False),
+            ("file://somehost//foo/something.txt", False),
+            ("file://localhost//foo/something.txt", False),
+            ]:
+            req = Request(url)
+            try:
+                h.file_open(req)
+            # XXXX remove OSError when bug fixed
+            except (urllib_error.URLError, OSError):
+                self.assertFalse(ftp)
+            else:
+                self.assertIs(o.req, req)
+                self.assertEqual(req.type, "ftp")
+            self.assertEqual(req.type == "ftp", ftp)
+
+    @skip26
+    def test_http(self):
+
+        h = urllib_request.AbstractHTTPHandler()
+        o = h.parent = MockOpener()
+
+        url = "http://example.com/"
+        for method, data in [("GET", None), ("POST", b"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.__contains__  # 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(urllib_error.URLError, h.do_open, http, req)
+
+        # Check for TypeError on POST data which is str.
+        req = Request("http://example.com/","badpost")
+        self.assertRaises(TypeError, h.do_request_, req)
+
+        # check adding of standard headers
+        o.addheaders = [("Spam", "eggs")]
+        for data in b"", None:  # POST, GET
+            req = Request("http://example.com/", data)
+            r = MockResponse(200, "OK", {}, "")
+            newreq = h.do_request_(req)
+            if data is None:  # GET
+                self.assertNotIn("Content-length", req.unredirected_hdrs)
+                self.assertNotIn("Content-type", 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")
+
+        # Check iterable body support
+        def iterable_body():
+            yield b"one"
+            yield b"two"
+            yield b"three"
+
+        for headers in {}, {"Content-Length": 11}:
+            req = Request("http://example.com/", iterable_body(), headers)
+            if not headers:
+                # Having an iterable body without a Content-Length should
+                # raise an exception
+                self.assertRaises(ValueError, h.do_request_, req)
+            else:
+                newreq = h.do_request_(req)
+
+        # A file object.
+        # Test only Content-Length attribute of request.
+
+        file_obj = io.BytesIO()
+        file_obj.write(b"Something\nSomething\nSomething\n")
+
+        for headers in {}, {"Content-Length": 30}:
+            req = Request("http://example.com/", file_obj, headers)
+            if not headers:
+                # Having an iterable body without a Content-Length should
+                # raise an exception
+                self.assertRaises(ValueError, h.do_request_, req)
+            else:
+                newreq = h.do_request_(req)
+                self.assertEqual(int(newreq.get_header('Content-length')),30)
+
+        file_obj.close()
+
+        # array.array Iterable - Content Length is calculated
+
+        iterable_array = array.array(text_to_native_str("I"),
+                                     [1,2,3,4])
+
+        for headers in {}, {"Content-Length": 16}:
+            req = Request("http://example.com/", iterable_array, headers)
+            newreq = h.do_request_(req)
+            self.assertEqual(int(newreq.get_header('Content-length')),16)
+
+    @skip26
+    def test_http_doubleslash(self):
+        # Checks the presence of any unnecessary double slash in url does not
+        # break anything. Previously, a double slash directly after the host
+        # could cause incorrect parsing.
+        h = urllib_request.AbstractHTTPHandler()
+        h.parent = MockOpener()
+
+        data = b""
+        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_fixpath_in_weirdurls(self):
+        # Issue4493: urllib2 to supply '/' when to urls where path does not
+        # start with'/'
+
+        h = urllib_request.AbstractHTTPHandler()
+        h.parent = MockOpener()
+
+        weird_url = 'http://www.python.org?getspam'
+        req = Request(weird_url)
+        newreq = h.do_request_(req)
+        self.assertEqual(newreq.host,'www.python.org')
+        self.assertEqual(newreq.selector,'/?getspam')
+
+        url_without_path = 'http://www.python.org'
+        req = Request(url_without_path)
+        newreq = h.do_request_(req)
+        self.assertEqual(newreq.host,'www.python.org')
+        self.assertEqual(newreq.selector,'')
+
+
+    def test_errors(self):
+        h = urllib_request.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.assertIs(r, newr)
+        self.assertFalse(hasattr(o, "proto"))  # o.error not called
+        r = MockResponse(202, "Accepted", {}, "", url)
+        newr = h.http_response(req, r)
+        self.assertIs(r, newr)
+        self.assertFalse(hasattr(o, "proto"))  # o.error not called
+        r = MockResponse(206, "Partial content", {}, "", url)
+        newr = h.http_response(req, r)
+        self.assertIs(r, newr)
+        self.assertFalse(hasattr(o, "proto"))  # o.error not called
+        # anything else calls o.error (and MockOpener returns None, here)
+        r = MockResponse(502, "Bad gateway", {}, "", url)
+        self.assertIsNone(h.http_response(req, r))
+        self.assertEqual(o.proto, "http")  # o.error called
+        self.assertEqual(o.args, (req, r, 502, "Bad gateway", {}))
+
+    def test_cookies(self):
+        cj = MockCookieJar()
+        h = urllib_request.HTTPCookieProcessor(cj)
+        h.parent = MockOpener()
+
+        req = Request("http://example.com/")
+        r = MockResponse(200, "OK", {}, "")
+        newreq = h.http_request(req)
+        self.assertIs(cj.ach_req, req)
+        self.assertIs(cj.ach_req, newreq)
+        self.assertEqual(req.origin_req_host, "example.com")
+        self.assertFalse(req.unverifiable)
+        newr = h.http_response(req, r)
+        self.assertIs(cj.ec_req, req)
+        self.assertIs(cj.ec_r, r)
+        self.assertIs(r, newr)
+
+    def test_redirect(self):
+        from_url = "http://example.com/a.html"
+        to_url = "http://example.com/b.html"
+        h = urllib_request.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.timeout = socket._GLOBAL_DEFAULT_TIMEOUT
+                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 urllib_error.HTTPError:
+                    # 307 in response to POST requires user OK
+                    self.assertTrue(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.assertFalse(o.req.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.assertNotIn("content-length", headers)
+                self.assertNotIn("content-type", headers)
+
+                self.assertEqual(o.req.headers["Nonsense"],
+                                 "viking=withhold")
+                self.assertNotIn("Spam", o.req.headers)
+                self.assertNotIn("Spam", o.req.unredirected_hdrs)
+
+        # loop detection
+        req = Request(from_url)
+        req.timeout = socket._GLOBAL_DEFAULT_TIMEOUT
+        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
+        req.timeout = socket._GLOBAL_DEFAULT_TIMEOUT
+        try:
+            while 1:
+                redirect(h, req, "http://example.com/")
+                count = count + 1
+        except urllib_error.HTTPError:
+            # don't stop until max_repeats, because cookies may introduce state
+            self.assertEqual(count, urllib_request.HTTPRedirectHandler.max_repeats)
+
+        # detect endless non-repeating chain of redirects
+        req = Request(from_url, origin_req_host="example.com")
+        count = 0
+        req.timeout = socket._GLOBAL_DEFAULT_TIMEOUT
+        try:
+            while 1:
+                redirect(h, req, "http://example.com/%d" % count)
+                count = count + 1
+        except urllib_error.HTTPError:
+            self.assertEqual(count,
+                             urllib_request.HTTPRedirectHandler.max_redirections)
+
+
+    def test_invalid_redirect(self):
+        from_url = "http://example.com/a.html"
+        valid_schemes = ['http','https','ftp']
+        invalid_schemes = ['file','imap','ldap']
+        schemeless_url = "example.com/b.html"
+        h = urllib_request.HTTPRedirectHandler()
+        o = h.parent = MockOpener()
+        req = Request(from_url)
+        req.timeout = socket._GLOBAL_DEFAULT_TIMEOUT
+
+        for scheme in invalid_schemes:
+            invalid_url = scheme + '://' + schemeless_url
+            self.assertRaises(urllib_error.HTTPError, h.http_error_302,
+                    req, MockFile(), 302, "Security Loophole",
+                    MockHeaders({"location": invalid_url}))
+
+        for scheme in valid_schemes:
+            valid_url = scheme + '://' + schemeless_url
+            h.http_error_302(req, MockFile(), 302, "That's fine",
+                MockHeaders({"location": valid_url}))
+            self.assertEqual(o.req.get_full_url(), valid_url)
+
+    def test_relative_redirect(self):
+        from future.backports.urllib import parse as urllib_parse
+        from_url = "http://example.com/a.html"
+        relative_url = "/b.html"
+        h = urllib_request.HTTPRedirectHandler()
+        o = h.parent = MockOpener()
+        req = Request(from_url)
+        req.timeout = socket._GLOBAL_DEFAULT_TIMEOUT
+
+        valid_url = urllib_parse.urljoin(from_url,relative_url)
+        h.http_error_302(req, MockFile(), 302, "That's fine",
+            MockHeaders({"location": valid_url}))
+        self.assertEqual(o.req.get_full_url(), valid_url)
+
+    def test_cookie_redirect(self):
+        # cookies shouldn't leak into redirected requests
+        from future.backports.http.cookiejar import CookieJar
+
+        cj = CookieJar()
+        interact_netscape(cj, "http://www.example.com/", "spam=eggs")
+        hh = MockHTTPHandler(302, "Location: http://www.cracker.com/\r\n\r\n")
+        hdeh = urllib_request.HTTPDefaultErrorHandler()
+        hrh = urllib_request.HTTPRedirectHandler()
+        cp = urllib_request.HTTPCookieProcessor(cj)
+        o = build_test_opener(hh, hdeh, hrh, cp)
+        o.open("http://www.example.com/")
+        self.assertFalse(hh.req.has_header("Cookie"))
+
+    def test_redirect_fragment(self):
+        redirected_url = 'http://www.example.com/index.html#OK\r\n\r\n'
+        hh = MockHTTPHandler(302, 'Location: ' + redirected_url)
+        hdeh = urllib_request.HTTPDefaultErrorHandler()
+        hrh = urllib_request.HTTPRedirectHandler()
+        o = build_test_opener(hh, hdeh, hrh)
+        fp = o.open('http://www.example.com')
+        self.assertEqual(fp.geturl(), redirected_url.strip())
+
+    def test_proxy(self):
+        o = OpenerDirector()
+        ph = urllib_request.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.host, "acme.example.com")
+        o.open(req)
+        self.assertEqual(req.host, "proxy.example.com:3128")
+
+        self.assertEqual([(handlers[0], "http_open")],
+                         [tup[0:2] for tup in o.calls])
+
+    def test_proxy_no_proxy(self):
+        os.environ['no_proxy'] = 'python.org'
+        o = OpenerDirector()
+        ph = urllib_request.ProxyHandler(dict(http="proxy.example.com"))
+        o.add_handler(ph)
+        req = Request("http://www.perl.org/")
+        self.assertEqual(req.host, "www.perl.org")
+        o.open(req)
+        self.assertEqual(req.host, "proxy.example.com")
+        req = Request("http://www.python.org")
+        self.assertEqual(req.host, "www.python.org")
+        o.open(req)
+        self.assertEqual(req.host, "www.python.org")
+        del os.environ['no_proxy']
+
+    def test_proxy_no_proxy_all(self):
+        os.environ['no_proxy'] = '*'
+        o = OpenerDirector()
+        ph = urllib_request.ProxyHandler(dict(http="proxy.example.com"))
+        o.add_handler(ph)
+        req = Request("http://www.python.org")
+        self.assertEqual(req.host, "www.python.org")
+        o.open(req)
+        self.assertEqual(req.host, "www.python.org")
+        del os.environ['no_proxy']
+
+
+    def test_proxy_https(self):
+        o = OpenerDirector()
+        ph = urllib_request.ProxyHandler(dict(https="proxy.example.com:3128"))
+        o.add_handler(ph)
+        meth_spec = [
+            [("https_open", "return response")]
+        ]
+        handlers = add_ordered_mock_handlers(o, meth_spec)
+
+        req = Request("https://www.example.com/")
+        self.assertEqual(req.host, "www.example.com")
+        o.open(req)
+        self.assertEqual(req.host, "proxy.example.com:3128")
+        self.assertEqual([(handlers[0], "https_open")],
+                         [tup[0:2] for tup in o.calls])
+
+    def test_proxy_https_proxy_authorization(self):
+        o = OpenerDirector()
+        ph = urllib_request.ProxyHandler(dict(https='proxy.example.com:3128'))
+        o.add_handler(ph)
+        https_handler = MockHTTPSHandler()
+        o.add_handler(https_handler)
+        req = Request("https://www.example.com/")
+        req.add_header("Proxy-Authorization","FooBar")
+        req.add_header("User-Agent","Grail")
+        self.assertEqual(req.host, "www.example.com")
+        self.assertIsNone(req._tunnel_host)
+        o.open(req)
+        # Verify Proxy-Authorization gets tunneled to request.
+        # httpsconn req_headers do not have the Proxy-Authorization header but
+        # the req will have.
+        self.assertNotIn(("Proxy-Authorization","FooBar"),
+                         https_handler.httpconn.req_headers)
+        self.assertIn(("User-Agent","Grail"),
+                      https_handler.httpconn.req_headers)
+        self.assertIsNotNone(req._tunnel_host)
+        self.assertEqual(req.host, "proxy.example.com:3128")
+        self.assertEqual(req.get_header("Proxy-authorization"),"FooBar")
+
+    # TODO: This should be only for OSX
+    @unittest.skipUnless(sys.platform == 'darwin', "only relevant for OSX")
+    def test_osx_proxy_bypass(self):
+        bypass = {
+            'exclude_simple': False,
+            'exceptions': ['foo.bar', '*.bar.com', '127.0.0.1', '10.10',
+                           '10.0/16']
+        }
+        # Check hosts that should trigger the proxy bypass
+        for host in ('foo.bar', 'www.bar.com', '127.0.0.1', '10.10.0.1',
+                     '10.0.0.1'):
+            self.assertTrue(_proxy_bypass_macosx_sysconf(host, bypass),
+                            'expected bypass of %s to be True' % host)
+        # Check hosts that should not trigger the proxy bypass
+        for host in ('abc.foo.bar', 'bar.com', '127.0.0.2', '10.11.0.1', 'test'):
+            self.assertFalse(_proxy_bypass_macosx_sysconf(host, bypass),
+                             'expected bypass of %s to be False' % host)
+
+        # Check the exclude_simple flag
+        bypass = {'exclude_simple': True, 'exceptions': []}
+        self.assertTrue(_proxy_bypass_macosx_sysconf('test', bypass))
+
+    def test_basic_auth(self, quote_char='"'):
+        opener = OpenerDirector()
+        password_manager = MockPasswordManager()
+        auth_handler = urllib_request.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_basic_auth_with_unquoted_realm(self):
+        opener = OpenerDirector()
+        password_manager = MockPasswordManager()
+        auth_handler = urllib_request.HTTPBasicAuthHandler(password_manager)
+        realm = "ACME Widget Store"
+        http_handler = MockHTTPHandler(
+            401, 'WWW-Authenticate: Basic realm=%s\r\n\r\n' % realm)
+        opener.add_handler(auth_handler)
+        opener.add_handler(http_handler)
+        with self.assertWarns(UserWarning):
+            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_proxy_basic_auth(self):
+        opener = OpenerDirector()
+        ph = urllib_request.ProxyHandler(dict(http="proxy.example.com:3128"))
+        opener.add_handler(ph)
+        password_manager = MockPasswordManager()
+        auth_handler = urllib_request.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 raised 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(urllib_request.HTTPDigestAuthHandler):
+            def http_error_401(self, *args, **kwds):
+                self.parent.record("digest")
+                urllib_request.HTTPDigestAuthHandler.http_error_401(self,
+                                                             *args, **kwds)
+        class TestBasicAuthHandler(urllib_request.HTTPBasicAuthHandler):
+            def http_error_401(self, *args, **kwds):
+                self.parent.record("basic")
+                urllib_request.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_unsupported_auth_digest_handler(self):
+        opener = OpenerDirector()
+        # While using DigestAuthHandler
+        digest_auth_handler = urllib_request.HTTPDigestAuthHandler(None)
+        http_handler = MockHTTPHandler(
+            401, 'WWW-Authenticate: Kerberos\r\n\r\n')
+        opener.add_handler(digest_auth_handler)
+        opener.add_handler(http_handler)
+        self.assertRaises(ValueError,opener.open,"http://www.example.com")
+
+    def test_unsupported_auth_basic_handler(self):
+        # While using BasicAuthHandler
+        opener = OpenerDirector()
+        basic_auth_handler = urllib_request.HTTPBasicAuthHandler(None)
+        http_handler = MockHTTPHandler(
+            401, 'WWW-Authenticate: NTLM\r\n\r\n')
+        opener.add_handler(basic_auth_handler)
+        opener.add_handler(http_handler)
+        self.assertRaises(ValueError,opener.open,"http://www.example.com")
+
+    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)
+
+        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 = bytes('%s:%s' % (user, password), "ascii")
+        auth_hdr_value = ('Basic ' +
+            base64.encodebytes(userpass).strip().decode())
+        self.assertEqual(http_handler.requests[1].get_header(auth_header),
+                         auth_hdr_value)
+        self.assertEqual(http_handler.requests[1].unredirected_hdrs[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()
+        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 opener_has_handler(self, opener, handler_class):
+        self.assertTrue(any(h.__class__ == handler_class
+                            for h in opener.handlers))
+
+    def test_build_opener(self):
+        class MyHTTPHandler(urllib_request.HTTPHandler): pass
+        class FooHandler(urllib_request.BaseHandler):
+            def foo_open(self): pass
+        class BarHandler(urllib_request.BaseHandler):
+            def bar_open(self): pass
+
+        build_opener = urllib_request.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, urllib_request.HTTPHandler)
+        o = build_opener(urllib_request.HTTPHandler)
+        self.opener_has_handler(o, urllib_request.HTTPHandler)
+        o = build_opener(urllib_request.HTTPHandler())
+        self.opener_has_handler(o, urllib_request.HTTPHandler)
+
+        # Issue2670: multiple handlers sharing the same base class
+        class MyOtherHTTPHandler(urllib_request.HTTPHandler): pass
+        o = build_opener(MyHTTPHandler, MyOtherHTTPHandler)
+        self.opener_has_handler(o, MyHTTPHandler)
+        self.opener_has_handler(o, MyOtherHTTPHandler)
+
+    def test_HTTPError_interface(self):
+        """
+        Issue 13211 reveals that HTTPError didn't implement the URLError
+        interface even though HTTPError is a subclass of URLError.
+        """
+        msg = 'something bad happened'
+        url = code = fp = None
+        hdrs = 'Content-Length: 42'
+        err = urllib_error.HTTPError(url, code, msg, hdrs, fp)
+        self.assertTrue(hasattr(err, 'reason'))
+        self.assertEqual(err.reason, 'something bad happened')
+        self.assertTrue(hasattr(err, 'hdrs'))
+        self.assertEqual(err.hdrs, 'Content-Length: 42')
+        expected_errmsg = 'HTTP Error %s: %s' % (err.code, err.msg)
+        self.assertEqual(str(err), expected_errmsg)
+
+
+class RequestTests(unittest.TestCase):
+
+    def setUp(self):
+        self.get = Request("http://www.python.org/~jeremy/")
+        self.post = Request("http://www.python.org/~jeremy/",
+                            "data",
+                            headers={"X-Test": "test"})
+
+    def test_method(self):
+        self.assertEqual("POST", self.post.get_method())
+        self.assertEqual("GET", self.get.get_method())
+
+    def test_data(self):
+        self.assertFalse(self.get.data)
+        self.assertEqual("GET", self.get.get_method())
+        self.get.data = "spam"
+        self.assertTrue(self.get.data)
+        self.assertEqual("POST", self.get.get_method())
+
+    def test_get_full_url(self):
+        self.assertEqual("http://www.python.org/~jeremy/",
+                         self.get.get_full_url())
+
+    def test_selector(self):
+        self.assertEqual("/~jeremy/", self.get.selector)
+        req = Request("http://www.python.org/")
+        self.assertEqual("/", req.selector)
+
+    def test_get_type(self):
+        self.assertEqual("http", self.get.type)
+
+    def test_get_host(self):
+        self.assertEqual("www.python.org", self.get.host)
+
+    def test_get_host_unquote(self):
+        req = Request("http://www.%70ython.org/")
+        self.assertEqual("www.python.org", req.host)
+
+    def test_proxy(self):
+        self.assertFalse(self.get.has_proxy())
+        self.get.set_proxy("www.perl.org", "http")
+        self.assertTrue(self.get.has_proxy())
+        self.assertEqual("www.python.org", self.get.origin_req_host)
+        self.assertEqual("www.perl.org", self.get.host)
+
+    def test_wrapped_url(self):
+        req = Request("<URL:http://www.python.org>")
+        self.assertEqual("www.python.org", req.host)
+
+    def test_url_fragment(self):
+        req = Request("http://www.python.org/?qs=query#fragment=true")
+        self.assertEqual("/?qs=query", req.selector)
+        req = Request("http://www.python.org/#fun=true")
+        self.assertEqual("/", req.selector)
+
+        # Issue 11703: geturl() omits fragment in the original URL.
+        url = 'http://docs.python.org/library/urllib2.html#OK'
+        req = Request(url)
+        self.assertEqual(req.get_full_url(), url)
+
+    def test_HTTPError_interface_call(self):
+        """
+        Issue 15701 - HTTPError interface has info method available from URLError
+        """
+        err = urllib_request.HTTPError(msg="something bad happened", url=None,
+                                code=None, hdrs='Content-Length:42', fp=None)
+        self.assertTrue(hasattr(err, 'reason'))
+        assert hasattr(err, 'reason')
+        assert hasattr(err, 'info')
+        assert callable(err.info)
+        try:
+            err.info()
+        except AttributeError:
+            self.fail('err.info call failed.')
+        self.assertEqual(err.info(), "Content-Length:42")
+
+def test_main(verbose=None):
+    # support.run_doctest(test_urllib2, verbose)
+    # support.run_doctest(urllib_request, verbose)
+    tests = (TrivialTests,
+             OpenerDirectorTests,
+             HandlerTests,
+             MiscTests,
+             RequestTests,
+             RequestHdrsTests)
+    support.run_unittest(*tests)
+
+if __name__ == "__main__":
+    unittest.main()