| #!/usr/bin/env python |
| # Copyright 2013 Google Inc. All Rights Reserved. |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| """Defines a list of common network speeds. |
| |
| These values come from http://www.webpagetest.org/ |
| |
| See: |
| https://sites.google.com/a/webpagetest.org/docs/other-resources/2011-fcc-broadband-data |
| https://github.com/WPO-Foundation/webpagetest/blob/HEAD/www/settings/connectivity.ini.sample |
| """ |
| |
| import collections |
| |
| |
| NetConfig = collections.namedtuple('NetConfig', ['down', 'up', 'delay_ms']) |
| |
| |
| # pylint: disable=bad-whitespace |
| _NET_CONFIGS = { |
| 'dialup': NetConfig(down= '49Kbit/s', up= '30Kbit/s', delay_ms= '120'), |
| '3g': NetConfig(down= '1638Kbit/s', up= '768Kbit/s', delay_ms= '150'), |
| 'dsl': NetConfig(down= '1536Kbit/s', up= '384Kbit/s', delay_ms= '50'), |
| 'cable': NetConfig(down= '5Mbit/s', up= '1Mbit/s', delay_ms= '28'), |
| 'fios': NetConfig(down= '20Mbit/s', up= '5Mbit/s', delay_ms= '4'), |
| } |
| |
| |
| NET_CONFIG_NAMES = _NET_CONFIGS.keys() |
| |
| |
| def GetNetConfig(key): |
| """Returns the NetConfig object corresponding to the given |key|.""" |
| if key not in _NET_CONFIGS: |
| raise KeyError('No net config with key: %s' % key) |
| return _NET_CONFIGS[key] |
