Merge bitcoin-core/gui#233: qt test: Don't bind to regtest port

e21276a qt test: Don't bind to regtest port (Andrew Chow)

Pull request description:

  The qt tests don't need to bind to the regtest port. By not binding, it will no longer conflict with existing regtest instances and the tests will run as normal.

  Fixes dashpay#10

ACKs for top commit:
  MarcoFalke:
    cr ACK e21276a
  jarolrod:
    re-ACK e21276a, tested on macOS 11.2

Tree-SHA512: 5a269ee043f9aff7900e092c166de71912a2bf86ebe2982b3fb0e26bdebfb91869ee5d0f62082fd608c1288bfb7981f6c8647e504b11176711d7fec993a09164

src/qt/test/test_main.cpp

@@ -56,6 +56,13 @@ int main(int argc, char* argv[])
 
     NodeContext node_context;
     std::unique_ptr<interfaces::Node> node = interfaces::MakeNode(&node_context);
+    gArgs.ForceSetArg("-listen", "0");
+    gArgs.ForceSetArg("-listenonion", "0");
+    gArgs.ForceSetArg("-discover", "0");
+    gArgs.ForceSetArg("-dnsseed", "0");
+    gArgs.ForceSetArg("-fixedseeds", "0");
+    gArgs.ForceSetArg("-upnp", "0");
+    gArgs.ForceSetArg("-natpmp", "0");
 
     bool fInvalid = false;