But the real problem with unit tests as I've discovered is that the type of changes that you tend to make as code evolves tend to break a constant percentage of your unit tests.

但我认为单元测试的真正问题在于人们改进代码的同时也会破坏同等数量的单元测试。

youdao

Air compressor constant pressure gas supply intelligence control system is by the transducer, pressure sensor, programmable controller (PLC) control unit, software control unit etc.

空气压缩机恒压供气智能控制系统是由变频器、压力传感器、可编程控制器(PLC)控制单元、软件控制单元等组成。

youdao

The demand curve shows how much of a good consumers are willing to buy as the price per unit changes holding non-price factors constant.

需求曲线表明当单位价格的变化保持在一个非价格因素的恒定值上时，多数消费者在多大程度上愿意掏腰包去消费。

youdao

The unit still requires constant care and feeding.

FORBES: No Thain, No Gain

Tim Newland about his unit's constant movement.

CNN: 'I'd like to see the bigger picture'

As Wheatley and his 3rd Squadron, 7th Cavalry unit rolled up central Iraq's "Machine Gun Alley" this week, they took nearly constant fire.

CNN: At the Front: 'Unimaginable' firefight lasts 72 hours