mod obj;
pub use obj::LoadingError;
pub use obj::ObjData;
pub use obj::Object;
pub use obj::Group;

#[cfg(test)]
mod test;

mod obj;
pub use obj::LoadingError;
pub use obj::ObjData;

#[cfg(test)]
mod test;

--- 
+++ 
@@ -1,6 +1,8 @@
 mod obj;
 pub use obj::LoadingError;
 pub use obj::ObjData;
+pub use obj::Object;
+pub use obj::Group;
 
 #[cfg(test)]
 mod test;
Change visibility of Group and Object
