Go-1.18FuzzingMultipleParameters.go

func MultipleInputs(a, b int, name string) {
    // ... fancy code goes here 
}

func FuzzMultipleInputs(f *testing.F) {
  // We can add Multiple Seeds, but it has to be the same order as the input parameters for MultipleInputs
  f.Add(10,20,"John the Ripper")
  f.Fuzz(func(t *testing.T,a int,b int,name string){
      MultipleInputs(a,b,name)      
  })
}

Does it look right? Getting an undeclared name error for x and y in the last line.Thank you!

func Mult(x int, y int) int {
	return x * y
}
func FuzzMult(f *testing.F) {
	f.Add(10, 20)
	f.Fuzz(func(t *testing.T, x int, y int) {
		Mult(x, y)
	})

}

Hey Monkrus! Thanks for reachig out,

It does look correct, there is just one small minor issue.

f.Fuzz accepts a function, which you pass in as a anonymous function( undecleared function) This is a short syntax, but it can confuse sometimes.

In your function you declare that there will be 3 local scoped variables
t which is a *testing.T
a and b which are ints.

But then you pass x and y into Multi. So simply rename the variables in the function to x and y and it should work :)

To make it clearer, you could use 3 functions instead

`func Multi(x int, y int) int {
return x * y
}

func FuzzMulti(f *testing.F) {
f.Add(10,20)
f.Fuzz(StuffToFuzz)
}

func StuffToFuzz(f *testing.F, x int, y int) {
Multi(x,y)
}

`

Hi @percybolmer, thank you very much for the detailed explanation! Not it is all clear for me!