Invariant Testing - Part 2 - Handler Based Testing | Testing with Foundry

[@smartcontractprogrammer]

0:00 - Intro 0:50 - Handler code 5:49 - Invariant test code 8:25 - Target contract 9:47 - Target selector Code github.com/t4sk/hello-foundry Book book.getfoundry.sh/ Take a course www.smartcontract.engineer/

[@nk86nk]

EXTREMELY useful mate. Thanks a lot for making the effort to create this. I keep coming back to it as i learn invariant testing. Thanks again

[@ken14250]

This is a very thorough video on introducing how invariant testing is actually done, thank you!

Quite enlightening! I really appreciate it!

[@sayandcode]

Nice

[@edwassermann8368]

Cool. Excellent explanation.

[@allanway534]

Could you plz do more vids on `invariant testing` topic?

[@internetandcomputerprobe4426]

could please you do on topic of equations based test like uniswap x*y=k, and others.

[@kwameantwi8429]

In recent tutorials i dont see them inheriting the Base, stdcheats, etc has something changed?

[@smartcontractprogrammer]

Yes, it's always changing

[@meka4996]

In this case, we only have Handler to interact with Weth, I think using assertEq() is more accurate than using assertGe()