testing: clarify fuzzing terms in documentation #49185
Description
We need to clarify our docs and code to be clear about all of the terms we use for fuzzing.
I propose these changes:
- “fuzz test” is the function in *_test.go which accepts a
*testing.F, e.g.func FuzzFoo(f *testing.F) - “fuzz target” should be the function that is being fuzzed, i.e. the fn passed to
f.Fuzz. This is a term that's used outside the context of Go (e.g. [1], [2]), and across the board it refers to the function that is being fuzzed. We previously called what we are now calling the "fuzz test" the "fuzz target", but we should change this to be more consistent with the wider fuzzing community. - “crasher” is slightly less important to get 100% consistent, but would be nice to rethink. Perhaps “failure” or “failing input” feels more natural and less jargony, so those are decent options.