### Question:
DefaultAtlasModuleInfoRegistry implements AtlasModuleInfoRegistry { @Override public int size() { return moduleInfos.size(); } DefaultAtlasModuleInfoRegistry(DefaultAtlasContextFactory factory); @Override AtlasModuleInfo lookupByUri(String uri); @Override Set<AtlasModuleInfo> getAll(); @Override void register(AtlasModuleInfo module); @Override int size(); @Override synchronized void unregisterAll();  }### Answer:
@Test public void testSize() { assertEquals(0, atlasModuleInfoRegistry.size()); }