Python tornado.escape 模块，url_escape() 实例源码

def generate(self, **kwargs):
        """Generate this template with the given arguments."""
        namespace = {
            "escape": escape.xhtml_escape,
            "xhtml_escape": escape.xhtml_escape,
            "url_escape": escape.url_escape,
            "json_encode": escape.json_encode,
            "squeeze": escape.squeeze,
            "linkify": escape.linkify,
            "datetime": datetime,
            "_utf8": escape.utf8,  # for internal use
            "_string_types": (unicode, bytes_type),
        }
        namespace.update(self.namespace)
        namespace.update(kwargs)
        exec self.compiled in namespace
        execute = namespace["_execute"]
        try:
            return execute()
        except Exception:
            formatted_code = _format_code(self.code).rstrip()
            logging.error("%s code:\n%s", self.name, formatted_code)
            raise

def generate(self, **kwargs):
        """Generate this template with the given arguments."""
        namespace = {
            "escape": escape.xhtml_escape,
            "xhtml_escape": escape.xhtml_escape,
            "url_escape": escape.url_escape,
            "json_encode": escape.json_encode,
            "squeeze": escape.squeeze,
            "linkify": escape.linkify,
            "datetime": datetime,
            "_utf8": escape.utf8,  # for internal use
            "_string_types": (unicode, bytes_type),
        }
        namespace.update(self.namespace)
        namespace.update(kwargs)
        exec self.compiled in namespace
        execute = namespace["_execute"]
        try:
            return execute()
        except Exception:
            formatted_code = _format_code(self.code).rstrip()
            logging.error("%s code:\n%s", self.name, formatted_code)
            raise

def make_oembed_url(url):
        url_parsed = None
        try:
            url_parsed = urlparse(url)
        except:
            return None

        if url_parsed.hostname.lower() not in ['youtube.com', 'www.youtube.com', 'vimeo.com', 'www.vimeo.com', 'youtu.be', 'flic.kr', 'flickr.com', 'www.flickr.com']:
            return None

        oembed_url = None
        if url_parsed.hostname.lower() in ['youtube.com', 'www.youtube.com', 'youtu.be']:
            to_url = 'https://%s%s?%s' % (url_parsed.hostname, url_parsed.path, url_parsed.query)
            oembed_url = 'https://www.youtube.com/oembed?url=%s&maxwidth=550&format=json' % (url_escape(to_url))
        elif url_parsed.hostname.lower() in ['vimeo.com', 'www.vimeo.com']:
            to_url = 'https://%s%s' % (url_parsed.hostname, url_parsed.path)
            oembed_url = 'https://vimeo.com/api/oembed.json?url=%s&maxwidth=550' % (url_escape(to_url))
        elif url_parsed.hostname.lower() in ['flic.kr', 'flickr.com', 'www.flickr.com']:
            to_url = 'https://%s%s' % (url_parsed.hostname, url_parsed.path)
            oembed_url = 'https://www.flickr.com/services/oembed/?url=%s&maxwidth=550&format=json' % (url_escape(to_url))
        return oembed_url

def test_creating_a_new_comment_does_not_create_a_duplicate_conversation(self):
        request = HTTPRequest(self.get_url('/p/%s/comment' % self.shf.share_key), 'POST', {'Cookie':'_xsrf=%s;sid=%s' % (self.xsrf, self.sid)}, "body=%s&_xsrf=%s" % (url_escape("a comment"), self.xsrf))
        self.http_client.fetch(request, self.stop)
        response = self.wait()

        request = HTTPRequest(self.get_url('/p/%s/comment' % self.shf.share_key), 'POST', {'Cookie':'_xsrf=%s;sid=%s' % (self.xsrf, self.sid)}, "body=%s&_xsrf=%s" % (url_escape("a second comment"), self.xsrf))
        self.http_client.fetch(request, self.stop)
        response = self.wait()

        conversations = Conversation.all()
        self.assertEqual(len(conversations), 2)

def test_another_user_commenting_will_update_the_files_activity_at(self):
        request = HTTPRequest(self.get_url('/p/%s/comment' % self.shf.share_key), 'POST', {'Cookie':'_xsrf=%s;sid=%s' % (self.xsrf, self.sid)}, "body=%s&_xsrf=%s" % (url_escape("a comment"), self.xsrf))
        self.http_client.fetch(request, self.stop)
        response = self.wait()

        time.sleep(1)


        sf = Sharedfile.get('id=%s', self.shf.id)
        activity_one = sf.activity_at

        request = HTTPRequest(self.get_url('/p/%s/comment' % self.shf.share_key), 'POST', {'Cookie':'_xsrf=%s;sid=%s' % (self.xsrf, self.sid)}, "body=%s&_xsrf=%s" % (url_escape("a second comment"), self.xsrf))
        self.http_client.fetch(request, self.stop)
        response = self.wait()


        sf = Sharedfile.get('id=%s', self.shf.id)
        activity_two = sf.activity_at

        self.assertTrue(activity_two > activity_one)

def generate(self, **kwargs):
        """Generate this template with the given arguments."""
        namespace = {
            "escape": escape.xhtml_escape,
            "xhtml_escape": escape.xhtml_escape,
            "url_escape": escape.url_escape,
            "json_encode": escape.json_encode,
            "squeeze": escape.squeeze,
            "linkify": escape.linkify,
            "datetime": datetime,
            "_tt_utf8": escape.utf8,  # for internal use
            "_tt_string_types": (unicode_type, bytes),
            # __name__ and __loader__ allow the traceback mechanism to find
            # the generated source code.
            "__name__": self.name.replace('.', '_'),
            "__loader__": ObjectDict(get_source=lambda name: self.code),
        }
        namespace.update(self.namespace)
        namespace.update(kwargs)
        exec_in(self.compiled, namespace)
        execute = namespace["_tt_execute"]
        # Clear the traceback module's cache of source data now that
        # we've generated a new template (mainly for this module's
        # unittests, where different tests reuse the same name).
        linecache.clearcache()
        return execute()

def test_task_handler(self):
        response = self.fetch('/task?url=%s' % url_escape(self.get_url('/sequence')))
        self.assertEqual(response.body, b"got response: 123")

def test_url_escape_unicode(self):
        tests = [
            # byte strings are passed through as-is
            (u('\u00e9').encode('utf8'), '%C3%A9'),
            (u('\u00e9').encode('latin1'), '%E9'),

            # unicode strings become utf8
            (u('\u00e9'), '%C3%A9'),
        ]
        for unescaped, escaped in tests:
            self.assertEqual(url_escape(unescaped), escaped)

def test_url_escape_quote_plus(self):
        unescaped = '+ #%'
        plus_escaped = '%2B+%23%25'
        escaped = '%2B%20%23%25'
        self.assertEqual(url_escape(unescaped), plus_escaped)
        self.assertEqual(url_escape(unescaped, plus=False), escaped)
        self.assertEqual(url_unescape(plus_escaped), unescaped)
        self.assertEqual(url_unescape(escaped, plus=False), unescaped)
        self.assertEqual(url_unescape(plus_escaped, encoding=None),
                         utf8(unescaped))
        self.assertEqual(url_unescape(escaped, encoding=None, plus=False),
                         utf8(unescaped))

def reverse(self, *args):
        assert self._path is not None, \
            "Cannot reverse url regex " + self.regex.pattern
        assert len(args) == self._group_count, "required number of arguments "\
            "not found"
        if not len(args):
            return self._path
        converted_args = []
        for a in args:
            if not isinstance(a, (unicode_type, bytes)):
                a = str(a)
            converted_args.append(escape.url_escape(utf8(a), plus=False))
        return self._path % tuple(converted_args)

def test_task_handler(self):
        response = self.fetch('/task?url=%s' % url_escape(self.get_url('/sequence')))
        self.assertEqual(response.body, b"got response: 123")

def test_url_escape_unicode(self):
        tests = [
            # byte strings are passed through as-is
            (u('\u00e9').encode('utf8'), '%C3%A9'),
            (u('\u00e9').encode('latin1'), '%E9'),

            # unicode strings become utf8
            (u('\u00e9'), '%C3%A9'),
        ]
        for unescaped, escaped in tests:
            self.assertEqual(url_escape(unescaped), escaped)

def test_url_escape_quote_plus(self):
        unescaped = '+ #%'
        plus_escaped = '%2B+%23%25'
        escaped = '%2B%20%23%25'
        self.assertEqual(url_escape(unescaped), plus_escaped)
        self.assertEqual(url_escape(unescaped, plus=False), escaped)
        self.assertEqual(url_unescape(plus_escaped), unescaped)
        self.assertEqual(url_unescape(escaped, plus=False), unescaped)
        self.assertEqual(url_unescape(plus_escaped, encoding=None),
                         utf8(unescaped))
        self.assertEqual(url_unescape(escaped, encoding=None, plus=False),
                         utf8(unescaped))

def reverse(self, *args):
        assert self._path is not None, \
            "Cannot reverse url regex " + self.regex.pattern
        assert len(args) == self._group_count, "required number of arguments "\
            "not found"
        if not len(args):
            return self._path
        converted_args = []
        for a in args:
            if not isinstance(a, (unicode_type, bytes)):
                a = str(a)
            converted_args.append(escape.url_escape(utf8(a), plus=False))
        return self._path % tuple(converted_args)

def generate(self, **kwargs):
        """Generate this template with the given arguments."""
        namespace = {
            "escape": escape.xhtml_escape,
            "xhtml_escape": escape.xhtml_escape,
            "url_escape": escape.url_escape,
            "json_encode": escape.json_encode,
            "squeeze": escape.squeeze,
            "linkify": escape.linkify,
            "datetime": datetime,
            "_tt_utf8": escape.utf8,  # for internal use
            "_tt_string_types": (unicode_type, bytes),
            # __name__ and __loader__ allow the traceback mechanism to find
            # the generated source code.
            "__name__": self.name.replace('.', '_'),
            "__loader__": ObjectDict(get_source=lambda name: self.code),
        }
        namespace.update(self.namespace)
        namespace.update(kwargs)
        exec_in(self.compiled, namespace)
        execute = namespace["_tt_execute"]
        # Clear the traceback module's cache of source data now that
        # we've generated a new template (mainly for this module's
        # unittests, where different tests reuse the same name).
        linecache.clearcache()
        return execute()

def test_url_escape_unicode(self):
        tests = [
            # byte strings are passed through as-is
            (u('\u00e9').encode('utf8'), '%C3%A9'),
            (u('\u00e9').encode('latin1'), '%E9'),

            # unicode strings become utf8
            (u('\u00e9'), '%C3%A9'),
        ]
        for unescaped, escaped in tests:
            self.assertEqual(url_escape(unescaped), escaped)

def test_url_escape_quote_plus(self):
        unescaped = '+ #%'
        plus_escaped = '%2B+%23%25'
        escaped = '%2B%20%23%25'
        self.assertEqual(url_escape(unescaped), plus_escaped)
        self.assertEqual(url_escape(unescaped, plus=False), escaped)
        self.assertEqual(url_unescape(plus_escaped), unescaped)
        self.assertEqual(url_unescape(escaped, plus=False), unescaped)
        self.assertEqual(url_unescape(plus_escaped, encoding=None),
                         utf8(unescaped))
        self.assertEqual(url_unescape(escaped, encoding=None, plus=False),
                         utf8(unescaped))

def reverse(self, *args):
        assert self._path is not None, \
            "Cannot reverse url regex " + self.regex.pattern
        assert len(args) == self._group_count, "required number of arguments "\
            "not found"
        if not len(args):
            return self._path
        converted_args = []
        for a in args:
            if not isinstance(a, (unicode_type, bytes)):
                a = str(a)
            converted_args.append(escape.url_escape(utf8(a), plus=False))
        return self._path % tuple(converted_args)

def register_volume(self, volume):

        # globally register volume
        global volumes
        volumes[volume.token] = volume

        # globally register kernel client for this volume in the Jupyter server
        cf = url_escape(find_connection_file())
        http_client= HTTPClient()
        try:
            response = http_client.fetch(self.get_server_url() + '/register_token/' + volume.token.decode('utf8') + '/' + cf)
        except Exception as e:
            raise RuntimeError("could not register token: " + str(e))
        http_client.close()

def generate(self, **kwargs):
        """Generate this template with the given arguments."""
        namespace = {
            "escape": escape.xhtml_escape,
            "xhtml_escape": escape.xhtml_escape,
            "url_escape": escape.url_escape,
            "json_encode": escape.json_encode,
            "squeeze": escape.squeeze,
            "linkify": escape.linkify,
            "datetime": datetime,
            "_tt_utf8": escape.utf8,  # for internal use
            "_tt_string_types": (unicode_type, bytes),
            # __name__ and __loader__ allow the traceback mechanism to find
            # the generated source code.
            "__name__": self.name.replace('.', '_'),
            "__loader__": ObjectDict(get_source=lambda name: self.code),
        }
        namespace.update(self.namespace)
        namespace.update(kwargs)
        exec_in(self.compiled, namespace)
        execute = namespace["_tt_execute"]
        # Clear the traceback module's cache of source data now that
        # we've generated a new template (mainly for this module's
        # unittests, where different tests reuse the same name).
        linecache.clearcache()
        return execute()

def test_task_handler(self):
        response = self.fetch('/task?url=%s' % url_escape(self.get_url('/sequence')))
        self.assertEqual(response.body, b"got response: 123")

def test_url_escape_unicode(self):
        tests = [
            # byte strings are passed through as-is
            (u('\u00e9').encode('utf8'), '%C3%A9'),
            (u('\u00e9').encode('latin1'), '%E9'),

            # unicode strings become utf8
            (u('\u00e9'), '%C3%A9'),
        ]
        for unescaped, escaped in tests:
            self.assertEqual(url_escape(unescaped), escaped)

def test_url_escape_quote_plus(self):
        unescaped = '+ #%'
        plus_escaped = '%2B+%23%25'
        escaped = '%2B%20%23%25'
        self.assertEqual(url_escape(unescaped), plus_escaped)
        self.assertEqual(url_escape(unescaped, plus=False), escaped)
        self.assertEqual(url_unescape(plus_escaped), unescaped)
        self.assertEqual(url_unescape(escaped, plus=False), unescaped)
        self.assertEqual(url_unescape(plus_escaped, encoding=None),
                         utf8(unescaped))
        self.assertEqual(url_unescape(escaped, encoding=None, plus=False),
                         utf8(unescaped))

def reverse(self, *args):
        assert self._path is not None, \
            "Cannot reverse url regex " + self.regex.pattern
        assert len(args) == self._group_count, "required number of arguments "\
            "not found"
        if not len(args):
            return self._path
        converted_args = []
        for a in args:
            if not isinstance(a, (unicode_type, bytes)):
                a = str(a)
            converted_args.append(escape.url_escape(utf8(a), plus=False))
        return self._path % tuple(converted_args)

def test_task_handler(self):
        response = self.fetch('/task?url=%s' % url_escape(self.get_url('/sequence')))
        self.assertEqual(response.body, b("got response: 123"))

def test_url_escape(self):
        tests = [
            # byte strings are passed through as-is
            (u'\u00e9'.encode('utf8'), '%C3%A9'),
            (u'\u00e9'.encode('latin1'), '%E9'),

            # unicode strings become utf8
            (u'\u00e9', '%C3%A9'),
            ]
        for unescaped, escaped in tests:
            self.assertEqual(url_escape(unescaped), escaped)

def generate(self, **kwargs):
        """Generate this template with the given arguments."""
        namespace = {
            "escape": escape.xhtml_escape,
            "xhtml_escape": escape.xhtml_escape,
            "url_escape": escape.url_escape,
            "json_encode": escape.json_encode,
            "squeeze": escape.squeeze,
            "linkify": escape.linkify,
            "datetime": datetime,
            "_tt_utf8": escape.utf8,  # for internal use
            "_tt_string_types": (unicode_type, bytes),
            # __name__ and __loader__ allow the traceback mechanism to find
            # the generated source code.
            "__name__": self.name.replace('.', '_'),
            "__loader__": ObjectDict(get_source=lambda name: self.code),
        }
        namespace.update(self.namespace)
        namespace.update(kwargs)
        exec_in(self.compiled, namespace)
        execute = namespace["_tt_execute"]
        # Clear the traceback module's cache of source data now that
        # we've generated a new template (mainly for this module's
        # unittests, where different tests reuse the same name).
        linecache.clearcache()
        return execute()

def generate(self, **kwargs):
        """Generate this template with the given arguments."""
        namespace = {
            "escape": escape.xhtml_escape,
            "xhtml_escape": escape.xhtml_escape,
            "url_escape": escape.url_escape,
            "json_encode": escape.json_encode,
            "squeeze": escape.squeeze,
            "linkify": escape.linkify,
            "datetime": datetime,
            "_tt_utf8": escape.utf8,  # for internal use
            "_tt_string_types": (unicode_type, bytes_type),
            # __name__ and __loader__ allow the traceback mechanism to find
            # the generated source code.
            "__name__": self.name.replace('.', '_'),
            "__loader__": ObjectDict(get_source=lambda name: self.code),
        }
        namespace.update(self.namespace)
        namespace.update(kwargs)
        exec_in(self.compiled, namespace)
        execute = namespace["_tt_execute"]
        # Clear the traceback module's cache of source data now that
        # we've generated a new template (mainly for this module's
        # unittests, where different tests reuse the same name).
        linecache.clearcache()
        return execute()

def test_task_handler(self):
        response = self.fetch('/task?url=%s' % url_escape(self.get_url('/sequence')))
        self.assertEqual(response.body, b"got response: 123")

def test_url_escape_unicode(self):
        tests = [
            # byte strings are passed through as-is
            (u('\u00e9').encode('utf8'), '%C3%A9'),
            (u('\u00e9').encode('latin1'), '%E9'),

            # unicode strings become utf8
            (u('\u00e9'), '%C3%A9'),
        ]
        for unescaped, escaped in tests:
            self.assertEqual(url_escape(unescaped), escaped)

def test_url_escape_quote_plus(self):
        unescaped = '+ #%'
        plus_escaped = '%2B+%23%25'
        escaped = '%2B%20%23%25'
        self.assertEqual(url_escape(unescaped), plus_escaped)
        self.assertEqual(url_escape(unescaped, plus=False), escaped)
        self.assertEqual(url_unescape(plus_escaped), unescaped)
        self.assertEqual(url_unescape(escaped, plus=False), unescaped)
        self.assertEqual(url_unescape(plus_escaped, encoding=None),
                         utf8(unescaped))
        self.assertEqual(url_unescape(escaped, encoding=None, plus=False),
                         utf8(unescaped))

def reverse(self, *args):
        assert self._path is not None, \
            "Cannot reverse url regex " + self.regex.pattern
        assert len(args) == self._group_count, "required number of arguments "\
            "not found"
        if not len(args):
            return self._path
        converted_args = []
        for a in args:
            if not isinstance(a, (unicode_type, bytes_type)):
                a = str(a)
            converted_args.append(escape.url_escape(utf8(a), plus=False))
        return self._path % tuple(converted_args)

def test_task_handler(self):
        response = self.fetch('/task?url=%s' % url_escape(self.get_url('/sequence')))
        self.assertEqual(response.body, b"got response: 123")

def test_url_escape_unicode(self):
        tests = [
            # byte strings are passed through as-is
            (u('\u00e9').encode('utf8'), '%C3%A9'),
            (u('\u00e9').encode('latin1'), '%E9'),

            # unicode strings become utf8
            (u('\u00e9'), '%C3%A9'),
        ]
        for unescaped, escaped in tests:
            self.assertEqual(url_escape(unescaped), escaped)

def test_url_escape_quote_plus(self):
        unescaped = '+ #%'
        plus_escaped = '%2B+%23%25'
        escaped = '%2B%20%23%25'
        self.assertEqual(url_escape(unescaped), plus_escaped)
        self.assertEqual(url_escape(unescaped, plus=False), escaped)
        self.assertEqual(url_unescape(plus_escaped), unescaped)
        self.assertEqual(url_unescape(escaped, plus=False), unescaped)
        self.assertEqual(url_unescape(plus_escaped, encoding=None),
                         utf8(unescaped))
        self.assertEqual(url_unescape(escaped, encoding=None, plus=False),
                         utf8(unescaped))

def reverse(self, *args):
        assert self._path is not None, \
            "Cannot reverse url regex " + self.regex.pattern
        assert len(args) == self._group_count, "required number of arguments "\
            "not found"
        if not len(args):
            return self._path
        converted_args = []
        for a in args:
            if not isinstance(a, (unicode_type, bytes)):
                a = str(a)
            converted_args.append(escape.url_escape(utf8(a), plus=False))
        return self._path % tuple(converted_args)

def generate(self, **kwargs):
        """Generate this template with the given arguments."""
        namespace = {
            "escape": escape.xhtml_escape,
            "xhtml_escape": escape.xhtml_escape,
            "url_escape": escape.url_escape,
            "json_encode": escape.json_encode,
            "squeeze": escape.squeeze,
            "linkify": escape.linkify,
            "datetime": datetime,
            "_tt_utf8": escape.utf8,  # for internal use
            "_tt_string_types": (unicode_type, bytes),
            # __name__ and __loader__ allow the traceback mechanism to find
            # the generated source code.
            "__name__": self.name.replace('.', '_'),
            "__loader__": ObjectDict(get_source=lambda name: self.code),
        }
        namespace.update(self.namespace)
        namespace.update(kwargs)
        exec_in(self.compiled, namespace)
        execute = namespace["_tt_execute"]
        # Clear the traceback module's cache of source data now that
        # we've generated a new template (mainly for this module's
        # unittests, where different tests reuse the same name).
        linecache.clearcache()
        return execute()

def test_url_escape_unicode(self):
        tests = [
            # byte strings are passed through as-is
            (u('\u00e9').encode('utf8'), '%C3%A9'),
            (u('\u00e9').encode('latin1'), '%E9'),

            # unicode strings become utf8
            (u('\u00e9'), '%C3%A9'),
        ]
        for unescaped, escaped in tests:
            self.assertEqual(url_escape(unescaped), escaped)

def test_url_escape_quote_plus(self):
        unescaped = '+ #%'
        plus_escaped = '%2B+%23%25'
        escaped = '%2B%20%23%25'
        self.assertEqual(url_escape(unescaped), plus_escaped)
        self.assertEqual(url_escape(unescaped, plus=False), escaped)
        self.assertEqual(url_unescape(plus_escaped), unescaped)
        self.assertEqual(url_unescape(escaped, plus=False), unescaped)
        self.assertEqual(url_unescape(plus_escaped, encoding=None),
                         utf8(unescaped))
        self.assertEqual(url_unescape(escaped, encoding=None, plus=False),
                         utf8(unescaped))

def reverse(self, *args):
        assert self._path is not None, \
            "Cannot reverse url regex " + self.regex.pattern
        assert len(args) == self._group_count, "required number of arguments "\
            "not found"
        if not len(args):
            return self._path
        converted_args = []
        for a in args:
            if not isinstance(a, (unicode_type, bytes)):
                a = str(a)
            converted_args.append(escape.url_escape(utf8(a), plus=False))
        return self._path % tuple(converted_args)

def test_task_handler(self):
        response = self.fetch('/task?url=%s' % url_escape(self.get_url('/sequence')))
        self.assertEqual(response.body, b("got response: 123"))

def test_url_escape(self):
        tests = [
            # byte strings are passed through as-is
            (u'\u00e9'.encode('utf8'), '%C3%A9'),
            (u'\u00e9'.encode('latin1'), '%E9'),

            # unicode strings become utf8
            (u'\u00e9', '%C3%A9'),
            ]
        for unescaped, escaped in tests:
            self.assertEqual(url_escape(unescaped), escaped)

def generate(self, **kwargs):
        """Generate this template with the given arguments."""
        namespace = {
            "escape": escape.xhtml_escape,
            "xhtml_escape": escape.xhtml_escape,
            "url_escape": escape.url_escape,
            "json_encode": escape.json_encode,
            "squeeze": escape.squeeze,
            "linkify": escape.linkify,
            "datetime": datetime,
            "_utf8": escape.utf8,  # for internal use
            "_string_types": (unicode_type, bytes_type),
            # __name__ and __loader__ allow the traceback mechanism to find
            # the generated source code.
            "__name__": self.name.replace('.', '_'),
            "__loader__": ObjectDict(get_source=lambda name: self.code),
        }
        namespace.update(self.namespace)
        namespace.update(kwargs)
        exec_in(self.compiled, namespace)
        execute = namespace["_execute"]
        # Clear the traceback module's cache of source data now that
        # we've generated a new template (mainly for this module's
        # unittests, where different tests reuse the same name).
        linecache.clearcache()
        return execute()

def test_task_handler(self):
        response = self.fetch('/task?url=%s' % url_escape(self.get_url('/sequence')))
        self.assertEqual(response.body, b"got response: 123")

def test_url_escape(self):
        tests = [
            # byte strings are passed through as-is
            (u('\u00e9').encode('utf8'), '%C3%A9'),
            (u('\u00e9').encode('latin1'), '%E9'),

            # unicode strings become utf8
            (u('\u00e9'), '%C3%A9'),
        ]
        for unescaped, escaped in tests:
            self.assertEqual(url_escape(unescaped), escaped)

def reverse(self, *args):
        assert self._path is not None, \
            "Cannot reverse url regex " + self.regex.pattern
        assert len(args) == self._group_count, "required number of arguments "\
            "not found"
        if not len(args):
            return self._path
        converted_args = []
        for a in args:
            if not isinstance(a, (unicode_type, bytes_type)):
                a = str(a)
            converted_args.append(escape.url_escape(utf8(a)))
        return self._path % tuple(converted_args)

def test_saving_a_comment_is_stored(self):
        #submit a comment to /share_key/save_comment
        body = """This is a comment.

        A multi-line comment.&

        That is all.&_xsrf=asdf
        """
        request = HTTPRequest(self.get_url('/p/%s/comment' % self.shf.share_key), 'POST', {'Cookie':'_xsrf=%s;sid=%s' % (self.xsrf, self.sid)}, "body=%s&_xsrf=%s" % (url_escape(body), self.xsrf))
        self.http_client.fetch(request, self.stop)
        response = self.wait()

        comments = self.shf.comments()
        self.assertEqual(len(comments), 1)
        self.assertEqual(comments[0].body, body.strip())

def test_blank_comment_doesnt_save(self):
        body = ""
        request = HTTPRequest(self.get_url('/p/%s/comment' % self.shf.share_key), 'POST', {'Cookie':'_xsrf=%s;sid=%s' % (self.xsrf, self.sid)}, "body=%s&_xsrf=%s" % (url_escape(body), self.xsrf))
        self.http_client.fetch(request, self.stop)
        response = self.wait()

        comments = self.shf.comments()
        self.assertEqual(len(comments), 0)

def test_saving_an_empty_comment_not_stored(self):
        #submit a comment to /share_key/save_comment
        body = """
        """
        request = HTTPRequest(self.get_url('/p/%s/comment' % self.shf.share_key), 'POST', {'Cookie':'_xsrf=%s;sid=%s' % (self.xsrf, self.sid)}, "body=%s&_xsrf=%s" % (url_escape(body), self.xsrf))
        self.http_client.fetch(request, self.stop)
        response = self.wait()

        comments = self.shf.comments()
        self.assertEqual(len(comments), 0)

def test_creating_a_new_comment_creates_a_conversation(self):
        request = HTTPRequest(self.get_url('/p/%s/comment' % self.shf.share_key), 'POST', {'Cookie':'_xsrf=%s;sid=%s' % (self.xsrf, self.sid)}, "body=%s&_xsrf=%s" % (url_escape("a comment"), self.xsrf))
        self.http_client.fetch(request, self.stop)
        response = self.wait()

        conversations = Conversation.all()
        self.assertEqual(len(conversations), 2)