Upstream Paper

src/test/java/org/bukkit/potion/PotionTest.java

@@ -0,0 +1,35 @@
+package org.bukkit.potion;
+
+import static org.junit.Assert.*;
+
+import java.util.EnumMap;
+import java.util.List;
+import java.util.Map;
+import net.minecraft.server.IRegistry;
+
+import net.minecraft.server.MobEffect;
+import net.minecraft.server.MobEffectList;
+import net.minecraft.server.PotionRegistry;
+import org.bukkit.support.AbstractTestingBase;
+import org.junit.Test;
+
+public class PotionTest extends AbstractTestingBase {
+    @Test
+    public void testEffectCompleteness() throws Throwable {
+        Map<PotionType, String> effects = new EnumMap(PotionType.class);
+        for (Object reg : IRegistry.POTION) {
+            List<MobEffect> eff = ((PotionRegistry)reg).a();
+            if (eff.size() != 1) continue;
+            int id = MobEffectList.getId(eff.get(0).getMobEffect());
+            PotionEffectType type = PotionEffectType.getById(id);
+            assertNotNull(String.valueOf(id), PotionEffectType.getById(id));
+
+            PotionType enumType = PotionType.getByEffect(type);
+            assertNotNull(type.getName(), enumType);
+
+            effects.put(enumType, enumType.name());
+        }
+
+        assertEquals(effects.entrySet().size(), PotionType.values().length - /* PotionTypes with no/shared Effects */ 6);
+    }
+}