### Question:
DefaultDescriptorGlobalConfigUtility { public DescriptorKey getKey() { return key; } DefaultDescriptorGlobalConfigUtility(DescriptorKey descriptorKey, ConfigurationAccessor configurationAccessor, ApiAction apiAction,
        ConfigurationFieldModelConverter configurationFieldModelConverter); DescriptorKey getKey(); boolean doesConfigurationExist(); Optional<ConfigurationModel> getConfiguration(); Optional<FieldModel> getFieldModel(); FieldModel save(FieldModel fieldModel); FieldModel update(Long id, FieldModel fieldModel);  }### Answer:
@Test public void testGetKey() { DescriptorKey descriptorKey = createDescriptorKey(); DefaultDescriptorGlobalConfigUtility configUtility = new DefaultDescriptorGlobalConfigUtility(descriptorKey, null, null, null); assertEquals(descriptorKey, configUtility.getKey()); }