Yup, that's the sort of thing that's typically missing from cable testers. I have a USB cable that normally works fine, but introduces errors when doing full blast USB 2.0 bulk transfers. I keep it around just in case I ever come across a tester that can show me this in hard numbers.
Products that do exactly that do exist, although are prohibitively expensive. [0]
It is difficult to send 10Gbps, 20Gbps, 40Gbps or even 80Gbps, then receive it, then validate it.
[0] - https://www.totalphase.com/products/advanced-cable-tester-v2...