Fix test logic after fixing bug in get_batch_by_transaction

Signed-off-by: Joseph Livesey <jlivesey@gmail.com>

Author: suchapalaver

validator/src/journal/commit_store.rs

@@ -602,10 +602,10 @@ mod tests {
             .batches
             .into_iter()
             .find(|batch| {
-                !batch
+                batch
                     .transaction_ids
                     .iter()
-                    .all(|txn_id| txn_id != transaction_id)
+                    .any(|txn_id| txn_id == transaction_id)
             })
             .ok_or_else(|| DatabaseError::CorruptionError("Transaction index corrupted".into()))
         // })