### Question:
MySQLKeywordChecker implements KeywordChecker { @Override public boolean check(String fieldOrTableName) { if (keywordSet.contains(fieldOrTableName)) { return true; } if (fieldOrTableName != null) { fieldOrTableName = fieldOrTableName.toUpperCase(); } return keywordSet.contains(fieldOrTableName); }  @Override boolean check(String fieldOrTableName); @Override boolean checkEscape(String fieldOrTableName);  }### Answer:
@Test public void testCheck() { KeywordChecker keywordChecker = KeywordCheckerFactory.getKeywordChecker(JdbcConstants.MYSQL); Assertions.assertTrue(keywordChecker.check("desc")); }