@Test
 public void testGetAcceptableTokens() {
   AvoidEscapedUnicodeCharactersCheck check = new AvoidEscapedUnicodeCharactersCheck();
   int[] actual = check.getAcceptableTokens();
   int[] expected = {TokenTypes.STRING_LITERAL, TokenTypes.CHAR_LITERAL};
   assertArrayEquals(expected, actual);
 }
 @Test
 public void testGetRequiredTokens() {
   AvoidEscapedUnicodeCharactersCheck checkObj = new AvoidEscapedUnicodeCharactersCheck();
   int[] expected = {
     TokenTypes.STRING_LITERAL, TokenTypes.CHAR_LITERAL,
   };
   assertArrayEquals(expected, checkObj.getRequiredTokens());
 }