Why is the RegistryKey created repeatedly in FabricDimensionTest?

[xtexChooser]

In FabricDimensionTest.java(Fabric Test Mod),

Line 55: private static RegistryKey<World> WORLD_KEY = RegistryKey.of(
Line 69(onInitialize): WORLD_KEY = RegistryKey.of(Registry.WORLD_KEY, new Identifier("fabric_dimension", "void"));

They are all created an RegistryKey and setted to the same field, why? Can I remove the create in onInitialize in my mod?

[warjort]

Its probably something leftover from refactoring?
The code in onInitialize() looks redundant.

Test code doesn't usually have the same quality as production code. :-)

[xtexChooser]

Hmmm, yes. Thanks