diff --git a/crates/storage/db/src/abstraction/mock.rs b/crates/storage/db/src/abstraction/mock.rs
index d25286c49..8c2cfb0fb 100644
--- a/crates/storage/db/src/abstraction/mock.rs
+++ b/crates/storage/db/src/abstraction/mock.rs
@@ -45,7 +45,7 @@ impl DbTx for TxMock {
     type DupCursor<T: DupSort> = CursorMock;
 
     fn get<T: Table>(&self, _key: T::Key) -> Result<Option<T::Value>, DatabaseError> {
-        todo!()
+        Ok(None)
     }
 
     fn commit(self) -> Result<bool, DatabaseError> {
@@ -72,7 +72,7 @@ impl DbTxMut for TxMock {
     type DupCursorMut<T: DupSort> = CursorMock;
 
     fn put<T: Table>(&self, _key: T::Key, _value: T::Value) -> Result<(), DatabaseError> {
-        todo!()
+        Ok(())
     }
 
     fn delete<T: Table>(
@@ -80,19 +80,19 @@ impl DbTxMut for TxMock {
         _key: T::Key,
         _value: Option<T::Value>,
     ) -> Result<bool, DatabaseError> {
-        todo!()
+        Ok(true)
     }
 
     fn clear<T: Table>(&self) -> Result<(), DatabaseError> {
-        todo!()
+        Ok(())
     }
 
     fn cursor_write<T: Table>(&self) -> Result<Self::CursorMut<T>, DatabaseError> {
-        todo!()
+        Ok(CursorMock { _cursor: 0 })
     }
 
     fn cursor_dup_write<T: DupSort>(&self) -> Result<Self::DupCursorMut<T>, DatabaseError> {
-        todo!()
+        Ok(CursorMock { _cursor: 0 })
     }
 }
 
@@ -174,15 +174,15 @@ impl<T: Table> DbCursorRO<T> for CursorMock {
 
 impl<T: DupSort> DbDupCursorRO<T> for CursorMock {
     fn next_dup(&mut self) -> PairResult<T> {
-        todo!()
+        Ok(None)
     }
 
     fn next_no_dup(&mut self) -> PairResult<T> {
-        todo!()
+        Ok(None)
     }
 
     fn next_dup_val(&mut self) -> ValueOnlyResult<T> {
-        todo!()
+        Ok(None)
     }
 
     fn seek_by_key_subkey(
@@ -190,7 +190,7 @@ impl<T: DupSort> DbDupCursorRO<T> for CursorMock {
         _key: <T as Table>::Key,
         _subkey: <T as DupSort>::SubKey,
     ) -> ValueOnlyResult<T> {
-        todo!()
+        Ok(None)
     }
 
     fn walk_dup(
@@ -198,7 +198,7 @@ impl<T: DupSort> DbDupCursorRO<T> for CursorMock {
         _key: Option<<T>::Key>,
         _subkey: Option<<T as DupSort>::SubKey>,
     ) -> Result<DupWalker<'_, T, Self>, DatabaseError> {
-        todo!()
+        Ok(DupWalker { cursor: self, start: None })
     }
 }
 
@@ -208,7 +208,7 @@ impl<T: Table> DbCursorRW<T> for CursorMock {
         _key: <T as Table>::Key,
         _value: <T as Table>::Value,
     ) -> Result<(), DatabaseError> {
-        todo!()
+        Ok(())
     }
 
     fn insert(
@@ -216,7 +216,7 @@ impl<T: Table> DbCursorRW<T> for CursorMock {
         _key: <T as Table>::Key,
         _value: <T as Table>::Value,
     ) -> Result<(), DatabaseError> {
-        todo!()
+        Ok(())
     }
 
     fn append(
@@ -224,20 +224,20 @@ impl<T: Table> DbCursorRW<T> for CursorMock {
         _key: <T as Table>::Key,
         _value: <T as Table>::Value,
     ) -> Result<(), DatabaseError> {
-        todo!()
+        Ok(())
     }
 
     fn delete_current(&mut self) -> Result<(), DatabaseError> {
-        todo!()
+        Ok(())
     }
 }
 
 impl<T: DupSort> DbDupCursorRW<T> for CursorMock {
     fn delete_current_duplicates(&mut self) -> Result<(), DatabaseError> {
-        todo!()
+        Ok(())
     }
 
     fn append_dup(&mut self, _key: <T>::Key, _value: <T>::Value) -> Result<(), DatabaseError> {
-        todo!()
+        Ok(())
     }
 }