diff --git a/tezt/tests/sc_rollup.ml b/tezt/tests/sc_rollup.ml
index dabebc89791b8952a26cedefa97d6ad2d0889c47..3c78c4dc93f3d95769c230bbd29ff9be6c733ebf 100644
--- a/tezt/tests/sc_rollup.ml
+++ b/tezt/tests/sc_rollup.ml
@@ -1,7 +1,7 @@
 (*****************************************************************************)
 (*                                                                           *)
 (* Open Source License                                                       *)
-(* Copyright (c) 2021-2022 Nomadic Labs <contact@nomadic-labs.com>           *)
+(* Copyright (c) 2021-2023 Nomadic Labs <contact@nomadic-labs.com>           *)
 (* Copyright (c) 2022-2023 TriliTech <contact@trili.tech>                    *)
 (*                                                                           *)
 (* Permission is hereby granted, free of charge, to any person obtaining a   *)
@@ -26,7 +26,7 @@
 
 (* Testing
    -------
-   Component:    Smart Contract Optimistic Rollups
+   Component:    Smart Optimistic Rollups
    Invocation:   dune exec tezt/tests/main.exe -- --file sc_rollup.ml
 *)
 
@@ -699,21 +699,6 @@ let get_inbox_from_sc_rollup_node sc_rollup_node =
   let* inbox = sc_rollup_node_rpc sc_rollup_node "global/block/head/inbox" in
   parse_inbox inbox
 
-let fetch_messages_from_block client =
-  let* ops = RPC.Client.call client @@ RPC.get_chain_block_operations () in
-  let messages =
-    ops |> JSON.as_list
-    |> List.concat_map JSON.as_list
-    |> List.concat_map (fun op -> JSON.(op |-> "contents" |> as_list))
-    |> List.filter_map (fun op ->
-           if JSON.(op |-> "kind" |> as_string) = "smart_rollup_add_messages"
-           then Some JSON.(op |-> "message" |> as_list)
-           else None)
-    |> List.hd
-    |> List.map (fun message -> JSON.(message |> as_string))
-  in
-  return messages
-
 (* Synchronizing the inbox in the rollup node
    ------------------------------------------
 
diff --git a/tezt/tests/sc_rollup.mli b/tezt/tests/sc_rollup.mli
new file mode 100644
index 0000000000000000000000000000000000000000..114bf8e2355c17f285debf51de1bb2fda53a82fa
--- /dev/null
+++ b/tezt/tests/sc_rollup.mli
@@ -0,0 +1,33 @@
+(*****************************************************************************)
+(*                                                                           *)
+(* Open Source License                                                       *)
+(* Copyright (c) 2021-2023 Nomadic Labs <contact@nomadic-labs.com>           *)
+(* Copyright (c) 2022-2023 TriliTech <contact@trili.tech>                    *)
+(*                                                                           *)
+(* Permission is hereby granted, free of charge, to any person obtaining a   *)
+(* copy of this software and associated documentation files (the "Software"),*)
+(* to deal in the Software without restriction, including without limitation *)
+(* the rights to use, copy, modify, merge, publish, distribute, sublicense,  *)
+(* and/or sell copies of the Software, and to permit persons to whom the     *)
+(* Software is furnished to do so, subject to the following conditions:      *)
+(*                                                                           *)
+(* The above copyright notice and this permission notice shall be included   *)
+(* in all copies or substantial portions of the Software.                    *)
+(*                                                                           *)
+(* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR*)
+(* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,  *)
+(* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL   *)
+(* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER*)
+(* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING   *)
+(* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER       *)
+(* DEALINGS IN THE SOFTWARE.                                                 *)
+(*                                                                           *)
+(*****************************************************************************)
+
+(* Testing
+   -------
+   Component:    Smart Optimistic Rollups
+   Invocation:   dune exec tezt/tests/main.exe -- --file sc_rollup.ml
+*)
+
+val register : protocols:Protocol.t list -> unit