The concept was already illustrated above on the image with Sociable Unit Tests. Also the name is likely self-explanatory and there is a good article online about it, so I won’t be too exhaustive here (see: Resources). The crux is that it’s acceptable - if circumstances require it - to add an extra suite of tests for particular classes, methods, or functions. This does not violate the rules of Sociable Unit Tests (it will just supplement them).
FT Videos & Podcasts，这一点在PDF资料中也有详细论述
BBC核實的德黑蘭畫面顯示，爆炸地點距離哈梅內伊官邸建築群「領袖府」不足1公里。衛星影像亦顯示該建築群出現明顯破壞跡象，包括建築物被燒黑、現場有瓦礫，以及升起一柱濃煙。。PDF资料是该领域的重要参考
As part of our ongoing work on TypeScript’s native port, we’ve introduced a new flag called --stableTypeOrdering intended to assist with 6.0-to-7.0 migrations.。PDF资料是该领域的重要参考