molecule: add version test

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

@@ -1,11 +1,13 @@
 { lib
 , buildPythonPackage
 , fetchPypi
+, testers
 , ansible-compat
 , ansible-core
 , click-help-colors
 , enrich
 , jsonschema
+, molecule
 , withPlugins ? true, molecule-plugins
 , packaging
 , pluggy
@@ -51,6 +53,14 @@ buildPythonPackage rec {
   # tests can't be easily run without installing things from ansible-galaxy
   doCheck = false;
 
+  passthru.tests.version = (testers.testVersion {
+    package = molecule;
+    command = "PY_COLORS=0 ${pname} --version";
+  }).overrideAttrs (old: {
+    # workaround the error: Permission denied: '/homeless-shelter'
+    HOME = "$(mktemp -d)";
+  });
+
   meta = with lib; {
     description = "Molecule aids in the development and testing of Ansible roles";
     homepage = "https://github.com/ansible-community/molecule";