Add test for matrix with socket listening

Author: SuperSandro2000

tests/default.nix

@@ -33,6 +33,24 @@ lib.mapAttrs (name: value: value.config.system.build.toplevel) {
     };
   };
 
+  matrix-synapse-nginx-with-socket = mkTest {
+    module = {
+      services = {
+        matrix-synapse = {
+          enable = true;
+          domain = "example.org";
+          listenOnSocket = true;
+          element-web = {
+            enable = true;
+            domain = "example.org";
+          };
+        };
+
+        nginx.enable = true;
+      };
+    };
+  };
+
   matrix-synapse-no-nginx = mkTest {
     module = {
       services.matrix-synapse = {