Much simpler

Author: jakeonfire

lib/webmock/http_lib_adapters/async_http_client_adapter.rb

@@ -153,7 +153,7 @@ def inspect
         private
 
         def socket_class
-          @_socket_class ||= Gem::Dependency.new("async-io").matching_specs.any? ? Async::IO::Socket : Socket
+          defined?(Async::IO::Socket) ? Async::IO::Socket : Socket
         end
 
         def create_connected_sockets