python3Packages.ephemeral-port-reserve: skip test_fqdn on darwin

pkgs/development/python-modules/ephemeral-port-reserve/default.nix

@@ -1,4 +1,5 @@
 { lib
+, stdenv
 , buildPythonPackage
 , fetchFromGitHub
 , pytestCheckHook
@@ -23,6 +24,11 @@ buildPythonPackage {
     pytestCheckHook
   ];
 
+  disabledTests = lib.optionals stdenv.isDarwin [
+    # can't find hostname in our darwin build environment
+    "test_fqdn"
+  ];
+
   pythonImportsCheck = [
     "ephemeral_port_reserve"
   ];