old_contents: # MIT licensed
  # Copyright (c) 2017 Felix Yan <felixonmars@archlinux.org>, et al.
  
  import sys
  
  try:
    import aiohttp
  except ImportError:
    aiohttp = None
  
  import pytest
  pytestmark = [
    pytest.mark.asyncio,
    pytest.mark.skipif(not aiohttp, reason="requires aiohttp"),
  ]
  
  async def test_proxy(get_version, monkeypatch):
    from nvchecker.source import session
  
    async def fake_request(*args, proxy, **kwargs):
      class fake_response():
        async def read():
          return proxy.encode("ascii")
  
        def release():
          pass
  
      return fake_response
  
    monkeypatch.setattr(session, "nv_config", {"proxy": "255.255.255.255:65535"}, raising=False)
    monkeypatch.setattr(aiohttp.ClientSession, "_request", fake_request)
  
    assert await get_version("example", {"regex": "(.+)", "url": "deadbeef"}) == "255.255.255.255:65535"
    assert await get_version("example", {"regex": "(.+)", "url": "deadbeef", "proxy": "0.0.0.0:0"}) == "0.0.0.0:0"
  
new_contents: # MIT licensed
  # Copyright (c) 2017 Felix Yan <felixonmars@archlinux.org>, et al.
  
  import sys
  
  try:
    import aiohttp
  except ImportError:
    aiohttp = None
  
  import pytest
  pytestmark = [
    pytest.mark.asyncio,
    pytest.mark.skipif('nvchecker.source.aiohttp_httpclient' not in sys.modules,
                       reason='aiohttp no chosen'),
  ]
  
  async def test_proxy(get_version, monkeypatch):
    from nvchecker.source import session
  
    async def fake_request(*args, proxy, **kwargs):
      class fake_response():
        async def read():
          return proxy.encode("ascii")
  
        def release():
          pass
  
      return fake_response
  
    monkeypatch.setattr(session, "nv_config", {"proxy": "255.255.255.255:65535"}, raising=False)
    monkeypatch.setattr(aiohttp.ClientSession, "_request", fake_request)
  
    assert await get_version("example", {"regex": "(.+)", "url": "deadbeef"}) == "255.255.255.255:65535"
    assert await get_version("example", {"regex": "(.+)", "url": "deadbeef", "proxy": "0.0.0.0:0"}) == "0.0.0.0:0"
  
subject: fix test_proxy skipping logic