fix

aleph-client/src/elections.rs

@@ -1,4 +1,3 @@
-use codec::Encode;
 use primitives::{
     BanConfig, BanInfo, CommitteeSeats, ElectionOpenness, EraIndex, EraValidators, SessionCount,
     SessionIndex,
@@ -96,6 +95,33 @@ pub fn get_ban_reason_for_validator<C: ReadStorage>(
     connection.read_storage_map(PALLET, "Banned", account_id, None)
 }
 
+pub fn ban_from_committee(
+    connection: &RootConnection,
+    to_be_banned: &AccountId,
+    reason: &Vec<u8>,
+    status: XtStatus,
+) {
+    let call_name = "ban_from_committee";
+
+    let ban_from_committee_call = compose_call!(
+        connection.as_connection().metadata,
+        PALLET,
+        call_name,
+        to_be_banned,
+        reason
+    );
+
+    let xt = compose_extrinsic!(
+        connection.as_connection(),
+        "Sudo",
+        "sudo_unchecked_weight",
+        ban_from_committee_call,
+        0_u64
+    );
+
+    send_xt(connection, xt, Some(call_name), status);
+}
+
 pub fn change_ban_config(
     sudo_connection: &RootConnection,
     minimal_expected_performance: Option<u8>,
@@ -143,28 +169,3 @@ pub fn set_elections_openness(
     );
     send_xt(sudo_connection, xt, Some("set_elections_openness"), status);
 }
-
-pub fn ban_from_committee<D: Encode>(
-    connection: &RootConnection,
-    to_be_banned: &AccountId,
-    reason: D,
-    status: XtStatus,
-) {
-    let call = compose_call!(
-        connection.as_connection().metadata,
-        PALLET,
-        "ban_from_committee",
-        to_be_banned,
-        reason.encode()
-    );
-
-    let xt = compose_extrinsic!(
-        connection.as_connection(),
-        "Sudo",
-        "sudo_unchecked_weight",
-        call,
-        0_u64
-    );
-
-    send_xt(connection, xt, Some("ban_from_committee"), status);
-}

e2e-tests/src/test/ban.rs

@@ -274,7 +274,7 @@ pub fn permissionless_ban(config: &Config) -> anyhow::Result<()> {
     ban_from_committee(
         &root_connection,
         validator_to_ban,
-        "valid reason",
+        &vec![],
         XtStatus::InBlock,
     );
     wait_for_full_era_completion(&root_connection)?;