feat: add serialize/deserialize

shared-lib/lib-ot/src/core/document/attributes.rs

@@ -1,6 +1,6 @@
 use std::collections::HashMap;
 
-#[derive(Clone)]
+#[derive(Clone, serde::Serialize, serde::Deserialize)]
 pub struct NodeAttributes(pub HashMap<String, Option<String>>);
 
 impl NodeAttributes {

shared-lib/lib-ot/src/core/document/document_operation.rs

@@ -1,7 +1,7 @@
 use crate::core::document::position::Position;
 use crate::core::{NodeAttributes, NodeData, TextDelta};
 
-#[derive(Clone)]
+#[derive(Clone, serde::Serialize, serde::Deserialize)]
 pub enum DocumentOperation {
     Insert {
         path: Position,
@@ -98,3 +98,56 @@ impl DocumentOperation {
         }
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use crate::core::Position;
+
+    #[test]
+    fn test_transform_path_1() {
+        assert_eq!(
+            { Position::transform(&Position(vec![0, 1]), &Position(vec![0, 1]), 1) }.0,
+            vec![0, 2]
+        );
+    }
+
+    #[test]
+    fn test_transform_path_2() {
+        assert_eq!(
+            { Position::transform(&Position(vec![0, 1]), &Position(vec![0, 2]), 1) }.0,
+            vec![0, 3]
+        );
+    }
+
+    #[test]
+    fn test_transform_path_3() {
+        assert_eq!(
+            { Position::transform(&Position(vec![0, 1]), &Position(vec![0, 2, 7, 8, 9]), 1) }.0,
+            vec![0, 3, 7, 8, 9]
+        );
+    }
+
+    #[test]
+    fn test_transform_path_not_changed() {
+        assert_eq!(
+            { Position::transform(&Position(vec![0, 1, 2]), &Position(vec![0, 0, 7, 8, 9]), 1) }.0,
+            vec![0, 0, 7, 8, 9]
+        );
+        assert_eq!(
+            { Position::transform(&Position(vec![0, 1, 2]), &Position(vec![0, 1]), 1) }.0,
+            vec![0, 1]
+        );
+        assert_eq!(
+            { Position::transform(&Position(vec![1, 1]), &Position(vec![1, 0]), 1) }.0,
+            vec![1, 0]
+        );
+    }
+
+    #[test]
+    fn test_transform_delta() {
+        assert_eq!(
+            { Position::transform(&Position(vec![0, 1]), &Position(vec![0, 1]), 5) }.0,
+            vec![0, 6]
+        );
+    }
+}

shared-lib/lib-ot/src/core/document/node.rs

@@ -1,6 +1,6 @@
 use crate::core::{NodeAttributes, TextDelta};
 
-#[derive(Clone)]
+#[derive(Clone, serde::Serialize, serde::Deserialize)]
 pub struct NodeData {
     pub node_type: String,
     pub attributes: NodeAttributes,

shared-lib/lib-ot/src/core/document/position.rs

@@ -1,4 +1,4 @@
-#[derive(Clone)]
+#[derive(Clone, serde::Serialize, serde::Deserialize)]
 pub struct Position(pub Vec<usize>);
 
 impl Position {
@@ -20,7 +20,7 @@ impl Position {
             return b.clone();
         }
         // check the prefix
-        for i in 0..(pre_insert_path.len()) {
+        for i in 0..(pre_insert_path.len() - 1) {
             if pre_insert_path.0[i] != b.0[i] {
                 return b.clone();
             }