added tree simulate bench

src/logic/depth_first/simulation/d_tree.rs

@@ -368,6 +368,8 @@ impl<Node: DNode> Display for DTree<Node> {
 mod tests {
     use std::time::Duration;
 
+    use test::bench;
+
     use crate::{
         logic::depth_first::{
             game::{
@@ -388,6 +390,28 @@ mod tests {
         read_game_state,
     };
 
+    #[bench]
+    fn bench_tree_simulate(b: &mut bench::Bencher) {
+        let gamestate = read_game_state("requests/test_move_request.json");
+        let state = DGameState::<DFastField>::from_request(
+            &gamestate.board,
+            &gamestate.you,
+            &gamestate.turn,
+        );
+
+        b.iter(|| {
+            let root = DFullSimulationNode::new(
+                DNodeId::default(),
+                vec![state.clone()],
+                DTreeTime::default(),
+                DNodeStatus::default(),
+                None,
+            );
+            let mut tree = DTree::default().root(root).max_depth(4);
+            tree.simulate()
+        });
+    }
+
     #[test]
     fn test_simulate_with_pessimistic_capture_node() {
         let gamestate = read_game_state("requests/test_move_request.json");