From adb50569195768f1705ddcef9fc48a9914ec1f0e Mon Sep 17 00:00:00 2001
From: Zixuan Chen <remch183@outlook.com>
Date: Mon, 30 Oct 2023 21:50:28 +0800
Subject: [PATCH] test: add diagnose info for id_to_cursor

---
 .../src/container/richtext/tracker.rs           |  1 +
 .../container/richtext/tracker/id_to_cursor.rs  | 17 +++++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/crates/loro-internal/src/container/richtext/tracker.rs b/crates/loro-internal/src/container/richtext/tracker.rs
index a3dd2a862..08a18e6f4 100644
--- a/crates/loro-internal/src/container/richtext/tracker.rs
+++ b/crates/loro-internal/src/container/richtext/tracker.rs
@@ -228,6 +228,7 @@ impl Tracker {
         self._checkout(from, false);
         self._checkout(to, true);
         // debug_log::debug_dbg!(from, to, &self);
+        self.id_to_cursor.diagnose();
         self.rope.get_diff()
     }
 }
diff --git a/crates/loro-internal/src/container/richtext/tracker/id_to_cursor.rs b/crates/loro-internal/src/container/richtext/tracker/id_to_cursor.rs
index bcb4e153e..1773b0c85 100644
--- a/crates/loro-internal/src/container/richtext/tracker/id_to_cursor.rs
+++ b/crates/loro-internal/src/container/richtext/tracker/id_to_cursor.rs
@@ -162,6 +162,23 @@ impl IdToCursor {
             .cursor
             .get_insert((id.counter - list[index].counter) as usize)
     }
+
+    pub fn diagnose(&self) {
+        let fragment_num = self.map.iter().map(|x| x.1.len()).sum::<usize>();
+        let insert_pieces = self
+            .map
+            .iter()
+            .flat_map(|x| x.1.iter())
+            .map(|x| match &x.cursor {
+                Cursor::Insert { set, len } => set.len(),
+                Cursor::Delete(_) => 0,
+            })
+            .sum::<usize>();
+        eprintln!(
+            "fragments:{}, insert_pieces:{}",
+            fragment_num, insert_pieces
+        );
+    }
 }
 
 #[derive(Debug)]