diff --git a/crates/loro-internal/src/container/richtext/richtext_state.rs b/crates/loro-internal/src/container/richtext/richtext_state.rs
index b03c3941b..7360d5200 100644
--- a/crates/loro-internal/src/container/richtext/richtext_state.rs
+++ b/crates/loro-internal/src/container/richtext/richtext_state.rs
@@ -233,7 +233,7 @@ mod text_chunk {
         }
 
         fn check(&self) {
-            if cfg!(debug_assertions) {
+            if cfg!(any(debug_assertions, test)) {
                 assert_eq!(self.unicode_len, self.as_str().chars().count() as i32);
                 assert_eq!(
                     self.utf16_len,
@@ -1904,6 +1904,10 @@ impl RichtextState {
 
     #[allow(unused)]
     pub(crate) fn check(&self) {
+        if !cfg!(any(debug_assertions, test)) {
+            return;
+        }
+
         self.tree.check();
         self.check_consistency_between_content_and_style_ranges();
         self.check_style_anchors_appear_in_pairs();
@@ -2116,7 +2120,7 @@ impl RichtextState {
 
     /// Allow StyleAnchors to appear in pairs, so that there won't be unmatched single StyleAnchors.
     pub(crate) fn check_style_anchors_appear_in_pairs(&self) {
-        if !cfg!(debug_assertions) {
+        if !cfg!(any(debug_assertions, test)) {
             return;
         }
 
diff --git a/crates/loro-internal/src/container/richtext/tracker.rs b/crates/loro-internal/src/container/richtext/tracker.rs
index 1dd640170..09dd8b97c 100644
--- a/crates/loro-internal/src/container/richtext/tracker.rs
+++ b/crates/loro-internal/src/container/richtext/tracker.rs
@@ -507,6 +507,10 @@ impl Tracker {
     }
 
     fn check_vv_correctness(&self) {
+        if !cfg!(debug_assertions) {
+            return;
+        }
+
         for span in self.rope.tree().iter() {
             if span.id.peer == UNKNOWN_PEER_ID {
                 continue;
@@ -525,6 +529,10 @@ impl Tracker {
     // It can only check the correctness of insertions in id_to_cursor.
     // The deletions are not checked.
     fn check_id_to_cursor_insertions_correctness(&self) {
+        if !cfg!(debug_assertions) {
+            return;
+        }
+
         for rope_elem in self.rope.tree().iter() {
             let id_span = rope_elem.id_span();
             let leaf_from_start = self.id_to_cursor.get_insert(id_span.id_start()).unwrap();
diff --git a/crates/loro-internal/src/state/movable_list_state.rs b/crates/loro-internal/src/state/movable_list_state.rs
index 1940f1a69..17343cf07 100644
--- a/crates/loro-internal/src/state/movable_list_state.rs
+++ b/crates/loro-internal/src/state/movable_list_state.rs
@@ -347,6 +347,10 @@ mod inner {
 
         #[allow(dead_code)]
         pub fn check_consistency(&self) {
+            if !cfg!(debug_assertions) {
+                return;
+            }
+
             let mut failed = false;
             if self.check_list_item_consistency().is_err() {
                 error!("list item consistency check failed, self={:#?}", self);
diff --git a/crates/loro-internal/src/state/richtext_state.rs b/crates/loro-internal/src/state/richtext_state.rs
index 602c007b6..c0617dace 100644
--- a/crates/loro-internal/src/state/richtext_state.rs
+++ b/crates/loro-internal/src/state/richtext_state.rs
@@ -686,6 +686,10 @@ impl RichtextState {
     /// Panic if inconsistent.
     #[allow(unused)]
     pub(crate) fn check_consistency_between_content_and_style_ranges(&mut self) {
+        if !cfg!(debug_assertions) {
+            return;
+        }
+
         self.state
             .get_mut()
             .check_consistency_between_content_and_style_ranges();