public static String convertParamMapping(Class<? extends TypeHandler<?>> typeHandler, JdbcType jdbcType, Integer numericScale) {
        if (typeHandler == null && jdbcType == null && numericScale == null) {
            return null;
        }
        String mapping = null;
        if (typeHandler != null) {
            mapping = mappingTypeHandler(typeHandler);
        }
        if (jdbcType != null) {
            mapping = appendMapping(mapping, mappingJdbcType(jdbcType));
        }
        if (numericScale != null) {
            mapping = appendMapping(mapping, mappingNumericScale(numericScale));
        }
        return mapping;
    }
@Test
    void convertParamMapping() {
        assertThat(SqlScriptUtils.convertParamMapping(LocalDateTypeHandler.class, JdbcType.DATE,2))
            .isEqualTo("typeHandler=org.apache.ibatis.type.LocalDateTypeHandler,jdbcType=DATE,numericScale=2");
    }