python311Packages.simplefix: switch to unittestCheckHook

- add pythonImportsCheck

pkgs/development/python-modules/simplefix/default.nix

@@ -1,8 +1,16 @@
-{ lib, python, buildPythonPackage, fetchFromGitHub }:
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, pythonOlder
+, unittestCheckHook
+}:
 
 buildPythonPackage rec {
   pname = "simplefix";
   version = "1.0.17";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
 
   src = fetchFromGitHub {
     repo = "simplefix";
@@ -11,10 +19,18 @@ buildPythonPackage rec {
     hash = "sha256-D85JW3JRQ1xErw6krMbAg94WYjPi76Xqjv/MGNMY5ZU=";
   };
 
-  checkPhase = ''
-    cd test
-    ${python.interpreter} -m unittest all
-  '';
+  nativeCheckInputs = [
+    unittestCheckHook
+  ];
+
+  pythonImportsCheck = [
+    "simplefix"
+  ];
+
+  unittestFlagsArray = [
+    "-s"
+    "test"
+  ];
 
   meta = with lib; {
     description = "Simple FIX Protocol implementation for Python";