dsApi/router: add resources to integration test

src/ds-api/router.cpp

@@ -72,6 +72,18 @@ std::unique_ptr<Router> makeTestService() {
         DS_NOTICE("Not implemented.");
         handler(dsApi::errorNotImplemented());
       }};
+  result->routes["/empty"] = {
+      .asyncInvoke = [](std::string&& path, dsApi::HttpArgs&&, std::function<void(dsApi::HttpResult &&)>&& handler) {
+        DS_NOTICE("item.");
+        handler({.status = 200, .content = ds::toJsonFragment(path)});
+      }};
+  result->routes["/emptyWildcard"] = {
+      .asyncInvoke =
+          [](std::string&& path, dsApi::HttpArgs&&, std::function<void(dsApi::HttpResult &&)>&& handler) {
+            DS_NOTICE("item.");
+            handler({.status = 200, .content = ds::toJsonFragment(path)});
+          },
+      .isWildcard = true};
   return result;
 }