  @Test public void testCamelToUpper() {

    assertEquals("MY_JDBC_DRIVER", Util.camelToUpper("myJdbcDriver"));
    assertEquals("MY_J_D_B_C_DRIVER", Util.camelToUpper("myJDBCDriver"));
    assertEquals("AB_CDEF_G_HIJ", Util.camelToUpper("abCdefGHij"));
    assertEquals("_JDBC_DRIVER", Util.camelToUpper("JdbcDriver"));
    assertEquals("", Util.camelToUpper(""));
  }