diff --git a/README.md b/README.md
index fc42db6..b067678 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
 - [] max_people = 0 -> Rot hervorheben, dass Ausfahrt abgesagt wurde?
 - [] my trips for cox
 - [] remove key from src/rest/admin/rss.rs (line 8); at least before putting code somewhere public
-- [] add `trip_type` (id, name, desc, question) with a FK to `trip_details`
+- [] add `trip_type` (id, name, desc, question, icon) with a FK to `trip_details`
 - [] add `always_show` to `planned_trips` (e.g. for wanderfahrten)
 - [] exactly same time -> deny registration
 - [] `planned_events` -> ICS feed to be [integrated](https://icscalendar.com/shortcode-overview/) in homepage calendar
diff --git a/src/model/trip.rs b/src/model/trip.rs
index 137b45e..8cafea4 100644
--- a/src/model/trip.rs
+++ b/src/model/trip.rs
@@ -5,7 +5,7 @@ use sqlx::SqlitePool;
 use super::{
     planned_event::{PlannedEvent, Registration},
     tripdetails::TripDetails,
-    user::{CoxUser, User},
+    user::CoxUser,
 };
 
 #[derive(Serialize, Clone, Debug)]
@@ -184,9 +184,13 @@ FROM user_trip WHERE trip_details_id = (SELECT trip_details_id FROM trip WHERE i
         .unwrap(); //TODO: handle case where cox is not registered
     }
 
-    pub(crate) async fn delete(&self, db: &SqlitePool, user: &User) -> Result<(), TripDeleteError> {
+    pub(crate) async fn delete(
+        &self,
+        db: &SqlitePool,
+        user: &CoxUser,
+    ) -> Result<(), TripDeleteError> {
         let registered_rower = self.get_all_rower(db).await;
-        if registered_rower.is_empty() {
+        if !registered_rower.is_empty() {
             return Err(TripDeleteError::SomebodyAlreadyRegistered);
         }
 
@@ -357,5 +361,20 @@ mod test {
         assert!(Trip::find_by_id(&pool, 2).await.is_none());
     }
 
-    //TODO: create tests for delete() function
+    #[sqlx::test]
+    fn test_succ_delete() {
+        let pool = testdb!();
+
+        let cox: CoxUser = User::find_by_name(&pool, "cox".into())
+            .await
+            .unwrap()
+            .try_into()
+            .unwrap();
+
+        let trip = Trip::find_by_id(&pool, 1).await.unwrap();
+
+        trip.delete(&pool, &cox).await.unwrap();
+
+        assert!(Trip::find_by_id(&pool, 1).await.is_none());
+    }
 }
diff --git a/src/model/usertrip.rs b/src/model/usertrip.rs
index d575b27..f786f91 100644
--- a/src/model/usertrip.rs
+++ b/src/model/usertrip.rs
@@ -87,7 +87,7 @@ pub enum UserTripError {
 
 #[cfg(test)]
 mod test {
-    use crate::testdb;
+    //use crate::testdb;
 
     //use super::User;
     //use sqlx::SqlitePool;