def test_headers():
    headers = {'X-Header1': ['h1'], 'X-Header2': 'h2'}
    req = Request('GET', 'http://go.com/', '', headers)
    assert req.headers == {'X-Header1': 'h1', 'X-Header2': 'h2'}

    req.add_header('X-Header1', 'h11')
    assert req.headers == {'X-Header1': 'h11', 'X-Header2': 'h2'}

def test_headers():
    headers = {"X-Header1": ["h1"], "X-Header2": "h2"}
    req = Request("GET", "http://go.com/", "", headers)
    assert req.headers == {"X-Header1": "h1", "X-Header2": "h2"}

    req.add_header("X-Header1", "h11")
    assert req.headers == {"X-Header1": "h11", "X-Header2": "h2"}

def test_remove_json_post_data_parameters():
    body = b'{"id": "secret", "foo": "bar", "baz": "qux"}'
    request = Request('POST', 'http://google.com', body, {})
    request.headers['Content-Type'] = 'application/json'
    remove_post_data_parameters(request, ['id'])
    request_body_json = json.loads(request.body.decode('utf-8'))
    expected_json = json.loads(b'{"foo": "bar", "baz": "qux"}'.decode('utf-8'))
    assert request_body_json == expected_json

 def request(self, method, url, body=None, headers=None):
     '''Persist the request metadata in self._vcr_request'''
     self._vcr_request = Request(
         method=method,
         uri=self._uri(url),
         body=body,
         headers=headers or {}
     )
     log.debug('Got {0}'.format(self._vcr_request))

def test_replace_json_post_data_parameters():
    # This tests all of:
    #   1. keeping a parameter
    #   2. removing a parameter
    #   3. replacing a parameter
    #   4. replacing a parameter using a callable
    #   5. removing a parameter using a callable
    #   6. replacing a parameter that doesn't exist
    body = b'{"one": "keep", "two": "lose", "three": "change", "four": "shout", "five": "whisper"}'
    request = Request('POST', 'http://google.com', body, {})
    request.headers['Content-Type'] = 'application/json'
    replace_post_data_parameters(request, [
        ('two', None),
        ('three', 'tada'),
        ('four', lambda key, value, request: value.upper()),
        ('five', lambda key, value, request: None),
        ('six', 'doesntexist'),
    ])
    request_data = json.loads(request.body.decode('utf-8'))
    expected_data = json.loads('{"one": "keep", "three": "tada", "four": "SHOUT"}')
    assert request_data == expected_data

 def request(self, method, url, body=None, headers=None):
     '''Persist the request metadata in self._vcr_request'''
     self._vcr_request = Request(
         protocol=self._protocol,
         host=self.real_connection.host,
         port=self.real_connection.port,
         method=method,
         path=url,
         body=body,
         headers=headers or {}
     )
     log.debug('Got {0}'.format(self._vcr_request))

 def putrequest(self, method, url, *args, **kwargs):
     """
     httplib gives you more than one way to do it.  This is a way
     to start building up a request.  Usually followed by a bunch
     of putheader() calls.
     """
     self._vcr_request = Request(
         method=method,
         uri=self._uri(url),
         body="",
         headers={}
     )
     log.debug('Got {0}'.format(self._vcr_request))

def deserialize(cassette_string, serializer):
    try:
        data = serializer.deserialize(cassette_string)
    # Old cassettes used to use yaml object thingy so I have to
    # check for some fairly stupid exceptions here
    except (ImportError, yaml.constructor.ConstructorError):
        _warn_about_old_cassette_format()
    if _looks_like_an_old_cassette(data):
        _warn_about_old_cassette_format()

    requests = [Request._from_dict(r['request']) for r in data['interactions']]
    responses = [
        compat.convert_to_bytes(r['response']) for r in data['interactions']
    ]
    return requests, responses

 def putrequest(self, method, url, *args, **kwargs):
     """
     httplib gives you more than one way to do it.  This is a way
     to start building up a request.  Usually followed by a bunch
     of putheader() calls.
     """
     self._vcr_request = Request(
         protocol=self._protocol,
         host=self.real_connection.host,
         port=self.real_connection.port,
         method=method,
         path=url,
         body="",
         headers={}
     )

def deserialize(cassette_string):
    data = json.loads(cassette_string)
    requests = [Request._from_dict(r['request']) for r in data]
    responses = [_fix_response_unicode(r['response']) for r in data]
    return requests, responses

class VCRConnection(object):
    # A reference to the cassette that's currently being patched in
    cassette = None

    def _port_postfix(self):
        """
        Returns empty string for the default port and ':port' otherwise
        """
        port = self.real_connection.port
        default_port = {'https': 433, 'http': 80}[self._protocol]
        return ':{0}'.format(port) if port != default_port else ''

    def _uri(self, url):
        """Returns request absolute URI"""
        uri = "{0}://{1}{2}{3}".format(
            self._protocol,
            self.real_connection.host,
            self._port_postfix(),
            url,
        )
        return uri

    def _url(self, uri):
        """Returns request selector url from absolute URI"""
        prefix = "{0}://{1}{2}".format(
            self._protocol,
            self.real_connection.host,
            self._port_postfix(),
        )
        return uri.replace(prefix, '', 1)

    def request(self, method, url, body=None, headers=None):
        '''Persist the request metadata in self._vcr_request'''
        self._vcr_request = Request(
            method=method,
            uri=self._uri(url),
            body=body,
            headers=headers or {}
        )
        log.debug('Got {0}'.format(self._vcr_request))

        # Note: The request may not actually be finished at this point, so
        # I'm not sending the actual request until getresponse().  This
        # allows me to compare the entire length of the response to see if it
        # exists in the cassette.

    def putrequest(self, method, url, *args, **kwargs):
        """
        httplib gives you more than one way to do it.  This is a way
        to start building up a request.  Usually followed by a bunch
        of putheader() calls.
        """
        self._vcr_request = Request(
            method=method,
            uri=self._uri(url),
            body="",
            headers={}
        )
        log.debug('Got {0}'.format(self._vcr_request))

    def putheader(self, header, *values):
        for value in values:
            self._vcr_request.add_header(header, value)

    def send(self, data):
        '''
        This method is called after request(), to add additional data to the
        body of the request.  So if that happens, let's just append the data
        onto the most recent request in the cassette.
        '''
        self._vcr_request.body = (self._vcr_request.body or '') + data

    def close(self):
        # Note: the real connection will only close if it's open, so
        # no need to check that here.
        self.real_connection.close()

    def endheaders(self, *args, **kwargs):
        """
        Normally, this would atually send the request to the server.
        We are not sending the request until getting the response,
        so bypass this method for now.
        """
        pass

    def getresponse(self, _=False):
        '''Retrieve the response'''
        # Check to see if the cassette has a response for this request. If so,
        # then return it
        if self.cassette.can_play_response_for(self._vcr_request):
            log.info(
                "Playing response for {0} from cassette".format(
                    self._vcr_request
                )
            )
            response = self.cassette.play_response(self._vcr_request)
            return VCRHTTPResponse(response)
        else:
            if self.cassette.write_protected and self.cassette.filter_request(self._vcr_request):
                raise CannotOverwriteExistingCassetteException(
#.........这里部分代码省略.........

def test_remove_all_json_post_data_parameters():
    body = b'{"id": "secret", "foo": "bar"}'
    request = Request('POST', 'http://google.com', body, {})
    request.headers['Content-Type'] = 'application/json'
    replace_post_data_parameters(request, [('id', None), ('foo', None)])
    assert request.body == b'{}'

def test_remove_nonexistent_json_post_data_parameters():
    body = b'{}'
    request = Request('POST', 'http://google.com', body, {})
    request.headers['Content-Type'] = 'application/json'
    remove_post_data_parameters(request, ['id'])
    assert request.body == b'{}'

def deserialize(cassette_string):
    data = json.loads(cassette_string)
    requests = [Request._from_dict(r['request']) for r in data]
    responses = [compat.convert_to_bytes(r['response']) for r in data]
    return requests, responses

def test_remove_all_json_post_data_parameters():
    body = b'{"id": "secret", "foo": "bar"}'
    request = Request('POST', 'http://google.com', body, {})
    request.add_header('Content-Type', 'application/json')
    remove_post_data_parameters(request, ['id', 'foo'])
    assert request.body == b'{}'

class VCRConnection:
    # A reference to the cassette that's currently being patched in
    cassette = None

    def request(self, method, url, body=None, headers=None):
        '''Persist the request metadata in self._vcr_request'''

        self._vcr_request = Request(
            protocol=self._protocol,
            host=self.real_connection.host,
            port=self.real_connection.port,
            method=method,
            path=url,
            body=body,
            headers=headers or {}
        )

        # Note: The request may not actually be finished at this point, so
        # I'm not sending the actual request until getresponse().  This
        # allows me to compare the entire length of the response to see if it
        # exists in the cassette.

    def putrequest(self, method, url, *args, **kwargs):
        """
        httplib gives you more than one way to do it.  This is a way
        to start building up a request.  Usually followed by a bunch
        of putheader() calls.
        """
        self._vcr_request = Request(
            protocol=self._protocol,
            host=self.real_connection.host,
            port=self.real_connection.port,
            method=method,
            path=url,
            body="",
            headers={}
        )

    def putheader(self, header, *values):
        for value in values:
            self._vcr_request.add_header(header, value)

    def send(self, data):
        '''
        This method is called after request(), to add additional data to the
        body of the request.  So if that happens, let's just append the data
        onto the most recent request in the cassette.
        '''
        self._vcr_request.body = (self._vcr_request.body or '') + data

    def close(self):
        # Note: the real connection will only close if it's open, so
        # no need to check that here.
        self.real_connection.close()

    def endheaders(self, *args, **kwargs):
        """
        Normally, this would atually send the request to the server.
        We are not sending the request until getting the response,
        so bypass this method for now.
        """
        pass

    def getresponse(self, _=False):
        '''Retrieve a the response'''
        # Check to see if the cassette has a response for this request. If so,
        # then return it
        if self._vcr_request in self.cassette and \
                self.cassette.record_mode != "all" and \
                self.cassette.rewound:
            response = self.cassette.play_response(self._vcr_request)
            return VCRHTTPResponse(response)
        else:
            if self.cassette.write_protected:
                raise CannotOverwriteExistingCassetteException(
                    "Can't overwrite existing cassette (%r) in "
                    "your current record mode (%r)."
                    % (self.cassette._path, self.cassette.record_mode)
                )

            # Otherwise, we should send the request, then get the response
            # and return it.

            self.real_connection.request(
                method=self._vcr_request.method,
                url=self._vcr_request.path,
                body=self._vcr_request.body,
                headers=dict(self._vcr_request.headers or {})
            )

            # get the response
            response = self.real_connection.getresponse()

            # put the response into the cassette
            response = {
                'status': {
                    'code': response.status,
                    'message': response.reason
                },
                'headers': compat.get_headers(response),
#.........这里部分代码省略.........