diff --git a/README.md b/README.md
index c6fecdb..ad01892 100644
--- a/README.md
+++ b/README.md
@@ -19,3 +19,12 @@
 ´cd frontend´
 ´npm install´
 ´npm run (watch/build)´
+
+
+# Backend tests
+- [x] model/user.rs
+- [x] model/tripdetails.rs
+- [ ] model/planned_event.rs
+- [ ] model/trip.rs
+- [ ] model/usertrip.rs
+- [ ] Rest?
diff --git a/src/model/tripdetails.rs b/src/model/tripdetails.rs
index e26c88b..62d9721 100644
--- a/src/model/tripdetails.rs
+++ b/src/model/tripdetails.rs
@@ -11,6 +11,7 @@ pub struct TripDetails {
 }
 
 impl TripDetails {
+    /// Creates a new entry in `trip_details` and returns its id.
     pub async fn create(
         db: &SqlitePool,
         planned_starting_time: String,
@@ -31,3 +32,25 @@ impl TripDetails {
         query.last_insert_rowid()
     }
 }
+
+#[cfg(test)]
+mod test {
+    use crate::testdb;
+
+    use super::TripDetails;
+    use sqlx::SqlitePool;
+
+    #[sqlx::test]
+    fn test() {
+        let pool = testdb!();
+
+        assert_eq!(
+            TripDetails::create(&pool, "10:00".into(), 2, "1970-01-01".into(), None).await,
+            1,
+        );
+        assert_eq!(
+            TripDetails::create(&pool, "10:00".into(), 2, "1970-01-01".into(), None).await,
+            2,
+        );
+    }
+}