Equivalence partitioning assumes that all values within any individual partition are equivalent for test purposes. 相等类划分假设,任一单独区间之内的值具有等效的输出。
A common reason for an encoding or decoding operation to fail is if the underlying encoding class does not provide a mapping between a character and an equivalent byte sequence. 编码或解码操作失败的常见原因是基础编码类没有提供字符和等效字节序列之间的映射。