### Question:
MobSpawnGroupHelper { static Class<? extends EntityInsentient> toMinecraftClass(String mobName) { Class<? extends Entity> clazz = EntityTypes.b.get(new MinecraftKey(mobName)); if (clazz == null) { return null; } if (EntityInsentient.class.isAssignableFrom(clazz)) { return clazz.asSubclass(EntityInsentient.class); } return null; }  static List<WeightedMobSpawnGroup> getListFromMinecraftBiome(BiomeBase biome, EntityCategory type); static List<BiomeMeta> toMinecraftlist(Collection<WeightedMobSpawnGroup> weightedMobSpawnGroups);  }### Answer:
@Test public void testMobNamesExistInMinecraft() { for (MobNames name : MobNames.values()) { assertTrue("Expected Minecraft class for " + name, toMinecraftClass(name.getInternalName()) != null); } }