refactor to functor

tools/helm_test_gen.py

@@ -19,13 +19,13 @@ class GenerateHelmTest(Tool):
 
   '''
 
-  
-  def get_yaml_value(self, d: dict[str], xpath: str, default: Optional[str] = None) -> str:
+  @staticmethod
+  def get_yaml_value(d: dict[str], xpath: str, default: Optional[str] = None) -> str:
       try:
           if '.' in xpath:
               h = xpath.split('.')[0]
               t = '.'.join(xpath.split('.')[1:])
-              return self.get_yaml_value(d[h], t)
+              return GenerateHelmTest.get_yaml_value(d[h], t)
           else:
               return d[xpath]
       except Exception as ex:
@@ -74,7 +74,7 @@ class GenerateHelmTest(Tool):
         kind = item['kind']
         kindDesc = (re.sub(r'((?<=[a-z])[A-Z]|(?<!\A)[A-Z](?=[a-z]))', r' \1', kind)).lower()
         env = Environment(loader=FileSystemLoader(template_dir))
-        env.globals['gyv'] = self.get_yaml_value
+        env.globals['gyv'] = GenerateHelmTest.get_yaml_value
         env.globals['bool_to_str'] = GenerateHelmTest.bool_to_str
         env.globals['get_object_by_kind'] = GenerateHelmTest.get_object_by_kind
         env.globals['get_env_by_ref'] = GenerateHelmTest.get_envs_by_ref