diff --git a/identified_vec/src/vec.rs b/identified_vec/src/vec.rs
index 7d80c9b..9957d02 100644
--- a/identified_vec/src/vec.rs
+++ b/identified_vec/src/vec.rs
@@ -827,26 +827,6 @@ where
     }
 }
 
-///////////////////////
-////    DEBUG       ///
-///////////////////////
-impl<I, E> IdentifiedVec<I, E>
-where
-    E: Debug,
-    I: Eq + Hash + Clone + Debug,
-{
-    #[cfg(not(tarpaulin_include))]
-    #[cfg(debug_assertions)]
-    pub fn debug(&self) {
-        println!("{}", self.debug_str());
-    }
-
-    #[cfg(debug_assertions)]
-    pub fn debug_str(&self) -> String {
-        format!("order: {:?}\nelements: {:?}", self.order, self.elements)
-    }
-}
-
 impl<ID, Element> IdentifiedVec<ID, Element>
 where
     ID: Eq + Hash + Clone + Debug,
diff --git a/identified_vec_macros/src/lib.rs b/identified_vec_macros/src/lib.rs
index 6d59bc5..aadd296 100644
--- a/identified_vec_macros/src/lib.rs
+++ b/identified_vec_macros/src/lib.rs
@@ -1,8 +1,6 @@
 #[macro_export]
 macro_rules! newtype_identified_vec {
     (of: $item_ty: ty, named: $struct_name: ident) => {
-        use identified_vec::IdentifiedVecIntoIterator;
-
         #[derive(Debug, Clone, Eq, PartialEq)]
         pub struct $struct_name(IdentifiedVecOf<$item_ty>);
 
@@ -21,9 +19,16 @@ macro_rules! newtype_identified_vec {
             }
         }
 
+        impl std::fmt::Display for $struct_name {
+            fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+                self.elements().fmt(f)
+            }
+        }
+
         impl IntoIterator for $struct_name {
             type Item = $item_ty;
-            type IntoIter = IdentifiedVecIntoIterator<<$item_ty as Identifiable>::ID, $item_ty>;
+            type IntoIter =
+                identified_vec::IdentifiedVecIntoIterator<<$item_ty as Identifiable>::ID, $item_ty>;
 
             fn into_iter(self) -> Self::IntoIter {
                 Self::IntoIter::new(self.0)
diff --git a/tests/tests.rs b/tests/tests.rs
index a4f8c4f..0e02ec1 100644
--- a/tests/tests.rs
+++ b/tests/tests.rs
@@ -55,7 +55,7 @@ impl Identifiable for User {
     }
 }
 
-type SUT = IdentifiedVecOf<u32>;
+newtype_identified_vec!(of: u32, named: SUT);
 newtype_identified_vec!(of: User, named: Users);
 
 #[test]
@@ -69,14 +69,6 @@ fn ids() {
     assert_eq!(identified_vec.ids(), &[1, 2, 3])
 }
 
-#[test]
-fn debug_str() {
-    let identified_vec = SUT::from_iter([1, 2, 3]);
-    assert!(identified_vec
-        .debug_str()
-        .starts_with("order: [1, 2, 3]\nelements: {"),)
-}
-
 #[test]
 fn elements() {
     let vec = vec![User::blob(), User::blob_jr(), User::blob_sr()];
@@ -306,6 +298,7 @@ fn append() {
 
 #[test]
 fn try_append_unique_element() {
+    type SUT = IdentifiedVecOf<u32>;
     let mut identified_vec = SUT::from_iter([1, 2, 3]);
     let result = identified_vec.try_append_unique_element(4);
     assert!(result.is_ok());
@@ -644,6 +637,7 @@ fn display() {
 
 #[test]
 fn hash() {
+    type SUT = IdentifiedVecOf<u32>;
     let identified_vec = SUT::from_iter([1, 2, 3]);
     assert_eq!(
         HashSet::<IdentifiedVec<u32, u32>>::from_iter([identified_vec.clone()]),
@@ -651,43 +645,6 @@ fn hash() {
     )
 }
 
-#[test]
-fn isid() {
-    struct CollectionOfUsersVia(IdentifiedVecOf<User>);
-    impl ViaMarker for CollectionOfUsersVia {}
-    impl IsIdentifiableVecOfVia<User> for CollectionOfUsersVia {
-        fn via_mut(&mut self) -> &mut IdentifiedVecOf<User> {
-            &mut self.0
-        }
-        fn via(&self) -> &IdentifiedVecOf<User> {
-            &self.0
-        }
-        fn from_identified_vec_of(identified_vec_of: IdentifiedVecOf<User>) -> Self {
-            Self(identified_vec_of)
-        }
-    }
-    impl IntoIterator for CollectionOfUsersVia {
-        type Item = User;
-
-        type IntoIter = IdentifiedVecIntoIterator<<User as Identifiable>::ID, User>;
-
-        fn into_iter(self) -> Self::IntoIter {
-            todo!()
-        }
-    }
-
-    let mut sut = CollectionOfUsersVia::new();
-    sut.append(User::blob_jr());
-    assert_eq!(sut.items(), [User::blob_jr()]);
-    sut.remove_at(0);
-    assert_eq!(sut.len(), 0);
-    sut.update_or_append(User::blob_sr());
-    sut.update_or_append(User::blob_sr());
-    assert_eq!(sut.items(), [User::blob_sr()]);
-    sut.update_or_append(User::blob_jr());
-    assert_eq!(sut.items(), [User::blob_sr(), User::blob_jr()]);
-}
-
 #[test]
 fn test_macro() {
     newtype_identified_vec!(of: User, named: CollectionOfUsers);