@@ -74,7 +74,7 @@ fn main() {
           "load_code_tree" => {
             let cmd: LoadCodeTreeCmd = serde_json::from_str(&payload.data).expect("unable to convert config");
             let code_path = PathBuf::from(cmd.root).join(cmd.code_path);
-            let entry = FileEntry::from_dir("root".to_string(), &code_path);
+            let entry = FileEntry::by_dir("root".to_string(), &code_path);
             let result = serde_json::to_string(&entry).expect("lost entry");
 
             window_.emit(&"code_tree".to_string(), Some(result)).expect("failed to emit");
 
@@ -23,6 +23,5 @@ exclude = [
 ]
 
 [dependencies]
-# serial
-serde = { version = "1.0" }
-serde_json = { version = "1.0" }
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
@@ -25,8 +25,10 @@ impl Default for FileEntry {
   }
 }
 
+#[allow(dead_code)]
 impl FileEntry {
-  pub fn from_path(path: PathBuf) -> Self {
+  /// create a simple FileEntry
+  fn from_path(path: PathBuf) -> Self {
     let file_name = path.file_name().unwrap();
     let name = match file_name.to_str() {
       None => "".to_string(),
@@ -58,7 +60,7 @@ impl FileEntry {
     }
   }
 
-  pub fn add_child(mut self, child: Self) -> Self {
+  fn add_child(mut self, child: Self) -> Self {
     self.children.push(child);
     self
   }
@@ -84,9 +86,16 @@ impl FileEntry {
       .unwrap_or(false)
   }
 
-  pub fn from_dir(title: String, dir: &Path) -> FileEntry {
+  /// Returns FileEntry with the given path.
+  ///
+  /// # Arguments
+  ///
+  /// * `title` - default path name
+  /// * `path`  - CODE PATH
+  ///
+  pub fn by_dir(title: String, path: &Path) -> FileEntry {
     let mut root = FileEntry::new(title);
-    let _result = FileEntry::visit_dirs(dir, 0, &mut root, dir);
+    let _result = FileEntry::visit_dirs(path, 0, &mut root, path);
     root
   }
 
@@ -132,3 +141,14 @@ impl FileEntry {
   }
 }
 
+#[cfg(test)]
+mod tests {
+  use std::path::PathBuf;
+  use crate::file_entry::FileEntry;
+
+  #[test]
+  fn should_support_for_visitor_by_level() {
+    let path = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
+    FileEntry::by_dir("root".to_string(), &path);
+  }
+}
@@ -1,3 +1,4 @@
+extern crate serde;
 extern crate serde_json;
 
 pub use domain::story_model::StoryModel;
Original file line number	Diff line number	Diff line change
`@@ -23,6 +23,5 @@ exclude = [`
`23`	`23`	`]`
`24`	`24`
`25`	`25`	`[dependencies]`
`26`		`-# serial`
`27`		`-serde = { version = "1.0" }`
`28`		`-serde_json = { version = "1.0" }`
	`26`	`+serde = { version = "1.0", features = ["derive"] }`
	`27`	`+serde_json = "1.0"`
Original file line number	Diff line number	Diff line change
`@@ -25,8 +25,10 @@ impl Default for FileEntry {`
`25`	`25`	`}`
`26`	`26`	`}`
`27`	`27`
	`28`	`+#[allow(dead_code)]`
`28`	`29`	`impl FileEntry {`
`29`		`- pub fn from_path(path: PathBuf) -> Self {`
	`30`	`+ /// create a simple FileEntry`
	`31`	`+ fn from_path(path: PathBuf) -> Self {`
`30`	`32`	`let file_name = path.file_name().unwrap();`
`31`	`33`	`let name = match file_name.to_str() {`
`32`	`34`	`None => "".to_string(),`
`@@ -58,7 +60,7 @@ impl FileEntry {`
`58`	`60`	`}`
`59`	`61`	`}`
`60`	`62`
`61`		`- pub fn add_child(mut self, child: Self) -> Self {`
	`63`	`+ fn add_child(mut self, child: Self) -> Self {`
`62`	`64`	`self.children.push(child);`
`63`	`65`	`self`
`64`	`66`	`}`
`@@ -84,9 +86,16 @@ impl FileEntry {`
`84`	`86`	`.unwrap_or(false)`
`85`	`87`	`}`
`86`	`88`
`87`		`- pub fn from_dir(title: String, dir: &Path) -> FileEntry {`
	`89`	`+ /// Returns FileEntry with the given path.`
	`90`	`+ ///`
	`91`	`+ /// # Arguments`
	`92`	`+ ///`
	`93`	+ /// * `title` - default path name
	`94`	+ /// * `path` - CODE PATH
	`95`	`+ ///`
	`96`	`+ pub fn by_dir(title: String, path: &Path) -> FileEntry {`
`88`	`97`	`let mut root = FileEntry::new(title);`
`89`		`- let _result = FileEntry::visit_dirs(dir, 0, &mut root, dir);`
	`98`	`+ let _result = FileEntry::visit_dirs(path, 0, &mut root, path);`
`90`	`99`	`root`
`91`	`100`	`}`
`92`	`101`
`@@ -132,3 +141,14 @@ impl FileEntry {`
`132`	`141`	`}`
`133`	`142`	`}`
`134`	`143`
	`144`	`+#[cfg(test)]`
	`145`	`+mod tests {`
	`146`	`+ use std::path::PathBuf;`
	`147`	`+ use crate::file_entry::FileEntry;`
	`148`	`+`
	`149`	`+ #[test]`
	`150`	`+ fn should_support_for_visitor_by_level() {`
	`151`	`+ let path = PathBuf::from(env!("CARGO_MANIFEST_DIR"));`
	`152`	`+ FileEntry::by_dir("root".to_string(), &path);`
	`153`	`+ }`
	`154`	`+}`
Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,4 @@`
	`1`	`+extern crate serde;`
`1`	`2`	`extern crate serde_json;`
`2`	`3`
`3`	`4`	`pub use domain::story_model::StoryModel;`