python3Packages.marshmallow-sqlalchemy: enable tests

pkgs/development/python-modules/marshmallow-sqlalchemy/default.nix

@@ -1,23 +1,35 @@
-{ lib, buildPythonPackage, fetchPypi,
+{ lib
-  marshmallow, sqlalchemy
+, buildPythonPackage
+, fetchPypi
+, marshmallow
+, sqlalchemy
+, pytest-lazy-fixture
+, pytestCheckHook
 }:
 
 buildPythonPackage rec {
   pname = "marshmallow-sqlalchemy";
   version = "0.24.2";
 
-  meta = {
-    homepage = "https://github.com/marshmallow-code/marshmallow-sqlalchemy";
-    description = "SQLAlchemy integration with marshmallow ";
-    license = lib.licenses.mit;
-  };
-
   src = fetchPypi {
     inherit pname version;
     sha256 = "ee3ead3b83de6608c6850ff60515691b0dc556ca226680f8a82b9f785cdb71b1";
   };
 
-  propagatedBuildInputs = [ marshmallow sqlalchemy ];
+  propagatedBuildInputs = [
+    marshmallow
+    sqlalchemy
+  ];
+
+  checkInputs = [
+    pytest-lazy-fixture
+    pytestCheckHook
+  ];
+
+  meta = with lib; {
+    homepage = "https://github.com/marshmallow-code/marshmallow-sqlalchemy";
+    description = "SQLAlchemy integration with marshmallow ";
+    license = licenses.mit;
+  };
 
-  doCheck = false;
 }