python.pkgs.pytest-sugar: run tests

pkgs/development/python-modules/pytest-sugar/default.nix

@@ -4,6 +4,7 @@
 , termcolor
 , pytest
 , packaging
+, pytestCheckHook
 }:
 
 buildPythonPackage rec {
@@ -21,6 +22,10 @@ buildPythonPackage rec {
     packaging
   ];
 
+  checkInputs = [
+    pytestCheckHook
+  ];
+
   meta = with lib; {
     description = "A plugin that changes the default look and feel of py.test";
     homepage = "https://github.com/Frozenball/pytest-sugar";