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# Copyright 2016 gRPC authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import hyperframe.frame
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import logging
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import http2_base_server
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class TestcaseSettingsMaxStreams(object):
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"""
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This test sets MAX_CONCURRENT_STREAMS to 1 and asserts that at any point
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only 1 stream is active.
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"""
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def __init__(self):
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self._base_server = http2_base_server.H2ProtocolBaseServer()
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self._base_server._handlers['DataReceived'] = self.on_data_received
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self._base_server._handlers['ConnectionMade'] = self.on_connection_made
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def get_base_server(self):
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return self._base_server
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def on_connection_made(self):
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logging.info('Connection Made')
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self._base_server._conn.initiate_connection()
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self._base_server._conn.update_settings(
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{hyperframe.frame.SettingsFrame.MAX_CONCURRENT_STREAMS: 1})
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self._base_server.transport.setTcpNoDelay(True)
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self._base_server.transport.write(
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self._base_server._conn.data_to_send())
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def on_data_received(self, event):
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self._base_server.on_data_received_default(event)
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sr = self._base_server.parse_received_data(event.stream_id)
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if sr:
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logging.info('Creating response of size = %s' % sr.response_size)
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response_data = self._base_server.default_response_data(
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sr.response_size)
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self._base_server.setup_send(response_data, event.stream_id)
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# TODO (makdharma): Add assertion to check number of live streams
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