Skip requests test instead of failing for python >= 3.6

Author: lamenezes

tests/integration/test_requests.py

@@ -116,8 +116,8 @@ def test_post_chunked_binary(tmpdir, httpbin):
     assert req1 == req2
 
 
-@pytest.mark.xfail('sys.version_info >= (3, 6)', strict=True, raises=ConnectionError)
-@pytest.mark.xfail((3, 5) < sys.version_info < (3, 6) and
+@pytest.mark.xskip('sys.version_info >= (3, 6)', strict=True, raises=ConnectionError)
+@pytest.mark.xskip((3, 5) < sys.version_info < (3, 6) and
                    platform.python_implementation() == 'CPython',
                    reason='Fails on CPython 3.5')
 def test_post_chunked_binary_secure(tmpdir, httpbin_secure):