### Question:
PredefinedFields { public static String createArrayCountFieldName(String arrayFieldName){ return arrayFieldName + FIELD_ARRAY_COUNT_POSTFIX; } private  PredefinedFields(); static void ensurePredefinedFields(EntityMetadata md); static void updateArraySizes(EntityMetadata md, JsonNodeFactory factory, JsonDoc doc); static boolean isFieldObjectType(String fieldName); static boolean isFieldAnArrayCount(String fieldName, Fields metadataFields); static boolean isPredefinedField(String fieldName, Fields fields); static String createArrayFieldNameFromCountField(String countField); static String createArrayCountFieldName(String arrayFieldName); static final String OBJECTTYPE_FIELD; static final String FIELD_ARRAY_COUNT_POSTFIX; static final Path OBJECTTYPE_PATH; }### Answer:
@Test public void testCreateArrayCountFieldName(){ assertEquals("somearray#", PredefinedFields.createArrayCountFieldName("somearray")); }