improve tests

Author: jsvd

lib/logstash/outputs/tcp.rb

@@ -325,7 +325,7 @@ def connect
         client_socket.post_connection_check(@host) if @ssl_verification_mode == 'full'
       rescue OpenSSL::SSL::SSLError => ssle
         log_error 'connect ssl failure:', ssle, backtrace: false
-        client_socket.close
+        client_socket.close rescue nil
         raise
       end
     end

spec/outputs/tcp_spec.rb

@@ -276,7 +276,7 @@
             let(:config) { super().merge("host" => "127.0.0.1") }
             it 'closes the connection' do
               thread = Thread.start do
-                sleep 1.25
+                sleep 0.1
                 expect { subject.connect }.to raise_error(OpenSSL::SSL::SSLError, /hostname "127.0.0.1" does not match the server certificate/)
               end
               socket = secure_server.accept