#800: Add support for NoteBlock sounds in Skulls

By: Doc <nachito94@msn.com>

paper-api/src/test/java/org/bukkit/InstrumentTest.java

@@ -8,6 +8,10 @@ public class InstrumentTest {
     @Test
     public void getByType() {
         for (Instrument instrument : Instrument.values()) {
+            if (instrument.getType() < 0) {
+                continue;
+            }
+
             assertThat(Instrument.getByType(instrument.getType()), is(instrument));
         }
     }