start the refactor

tests/permissions.rs

@@ -0,0 +1,12 @@
+use mini_admin_bot::check_permissions;
+use mockall::{automock, mock, predicate::*};
+
+#[test]
+fn test_permissions() {
+    let mut mock = check_permissions::MockGroupPermissions::new();
+    mock.expect_compare()
+        .with("user_id")
+        .times(1)
+        .returning(true);
+    assert_eq!(true, mock.compare("user_id"));
+}