fix drop test

src/ship/drops/mod.rs

@@ -213,6 +213,10 @@ mod test {
     #[test]
     fn test_sjs_drop() {
         let mut drop_table = DropTable::<rand_chacha::ChaCha20Rng>::new(Episode::Two, Difficulty::Ultimate, SectionID::Skyly);
-        let drop = drop_table.get_rare_drop(&MapArea::Seaside, &MonsterType::GiGue);
+        let drop = drop_table.get_rare_drop(&MapArea::Seaside, &MonsterType::GiGue).unwrap();
+        if let ItemDropType::Weapon(weapon) = drop {
+            assert!(weapon.weapon == weapon::WeaponType::SealedJSword);
+            assert!(weapon.kills == Some(0));
+        }
     }
 }