diff --git a/store/src/game_rules_points.rs b/store/src/game_rules_points.rs
index 251b397..cbe90fd 100644
--- a/store/src/game_rules_points.rs
+++ b/store/src/game_rules_points.rs
@@ -152,3 +152,17 @@ impl PointsRules {
         points
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    #[test]
+    fn get_jans() {
+        let mut rules = PointsRules::default();
+        rules.board.set_positions([
+            2, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        ]);
+
+        assert_eq!(2, rules.get_jans(&rules.board, &vec![2, 3]).0.len());
+    }
+}