### Question:
StringComplexFieldActions implements AtlasFieldAction { @AtlasActionProcessor public static String genareteUUID(GenerateUUID action) { return UUID.randomUUID().toString(); }  @AtlasActionProcessor static String append(Append append, String input); @AtlasActionProcessor(sourceType = FieldType.ANY) static String concatenate(Concatenate concat, List<String> inputs); @AtlasActionProcessor static Boolean endsWith(EndsWith endsWith, String input); @AtlasActionProcessor static String format(Format format, List<Object> input); @AtlasActionProcessor static String genareteUUID(GenerateUUID action); @AtlasActionProcessor static Number indexOf(IndexOf indexOf, String input); @AtlasActionProcessor static Number lastIndexOf(LastIndexOf lastIndexOf, String input); @AtlasActionProcessor static String padStringRight(PadStringRight padStringRight, String input); @AtlasActionProcessor static String padStringLeft(PadStringLeft padStringLeft, String input); @AtlasActionProcessor static String prepend(Prepend action, String input); @AtlasActionProcessor static String replaceAll(ReplaceAll replaceAll, String input); @AtlasActionProcessor static String replaceFirst(ReplaceFirst replaceFirst, String input); @AtlasActionProcessor(sourceType = FieldType.ANY) static String[] split(Split split, String input); @AtlasActionProcessor(sourceType = FieldType.ANY) static String[] repeat(Repeat repeat, String input); @AtlasActionProcessor static Boolean startsWith(StartsWith startsWith, String input); @AtlasActionProcessor static String subString(SubString subString, String input); @AtlasActionProcessor static String subStringAfter(SubStringAfter subStringAfter, String input); @AtlasActionProcessor static String subStringBefore(SubStringBefore subStringBefore, String input); static final String STRING_SEPARATOR_REGEX; static final Pattern STRING_SEPARATOR_PATTERN; }### Answer:
@Test public void testGenareteUUID() { validateGeneratedUUID(StringComplexFieldActions.genareteUUID(new GenerateUUID())); }