it really depends on what sort of textile item your making.
so, if your making apparell, you will need to test for function and aesthetics
***such as, if you were making a long formal dress, you would need to test for aesthetics -> Drape
function -> comfort, sweat absorbency
if its a formal dress, you wouldn't necessarily need to test things like, stretch, colour fastness or easy care?
Compared to costume, where as it would need to be easy care, sweat resistant, colouful, eyecatching and colourfast
textile art (which is what i'm making) is purely aesthetics, so there is no need to test for anything that has to do with function, it doesn't need to be comfortable.