plugins/python/regress: add tests for approval plugin

plugins/python/regress/plugin_approval_test.py

@@ -0,0 +1,22 @@
+import sudo
+import json
+
+
+class ApprovalTestPlugin(sudo.Plugin):
+    def __init__(self, plugin_options, **kwargs):
+        id = sudo.options_as_dict(plugin_options).get("Id", "")
+        super().__init__(plugin_options=plugin_options, **kwargs)
+        self._id = "(APPROVAL {})".format(id)
+        sudo.log_info("{} Constructed:".format(self._id))
+        sudo.log_info(json.dumps(self.__dict__, indent=4))
+
+    def __del__(self):
+        sudo.log_info("{} Destructed successfully".format(self._id))
+
+    def check(self, *args):
+        sudo.log_info("{} Check was called with arguments: "
+                      "{}".format(self._id, args))
+
+    def show_version(self, *args):
+        sudo.log_info("{} Show version was called with arguments: "
+                      "{}".format(self._id, args))