diff --git a/crates/adapters/event-payload/src/lib.rs b/crates/adapters/event-payload/src/lib.rs
index cf7f750..ba635f7 100644
--- a/crates/adapters/event-payload/src/lib.rs
+++ b/crates/adapters/event-payload/src/lib.rs
@@ -408,6 +408,17 @@ mod tests {
                 blocker_id: "a".into(),
                 blocked_id: "b".into(),
             },
+            EventPayload::UserUnblocked {
+                blocker_id: "a".into(),
+                blocked_id: "b".into(),
+            },
+            EventPayload::UserRegistered {
+                user_id: "a".into(),
+            },
+            EventPayload::FetchRemoteActorPosts {
+                actor_ap_url: "https://mastodon.social/users/alice".into(),
+                outbox_url: "https://mastodon.social/users/alice/outbox".into(),
+            },
         ];
         let mut subjects: Vec<&str> = samples.iter().map(|p| p.subject()).collect();
         subjects.sort();