Add test for Chunk.LoadLevel mirroring

src/test/java/org/bukkit/ChunkLoadLevelTest.java

@@ -0,0 +1,22 @@
+package org.bukkit;
+
+import net.minecraft.server.level.PlayerChunk;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class ChunkLoadLevelTest {
+
+    @Test
+    public void testOrdinalsAndNames() {
+        Chunk.LoadLevel[] bukkit = Chunk.LoadLevel.values();
+        PlayerChunk.State[] nms = PlayerChunk.State.values();
+
+        Assert.assertEquals("Enum length mismatch", bukkit.length - 1, nms.length); // Final entry is Bukkit-specific UNLOADED
+        for (int i = 0; i < nms.length; i++) {
+            Assert.assertEquals("Enum name mismatch, expected Bukkit " + bukkit[i] + " got NMS " + nms[i], bukkit[i].name(), nms[i].name());
+        }
+
+        // Check that Bukkit-specific UNLOADED is last
+        Assert.assertEquals("Final Bukkit entry should be UNLOADED", Chunk.LoadLevel.UNLOADED, bukkit[bukkit.length - 1]);
+    }
+}