The syntax you are looking for is:
max(test.vals...)
The ellipsis indicates that the var args are the *contents* of the slice,
as opposed to trying to pass the slice as if it were just a single element
of the var args.
----
*Josh Humphries*
jh...@bluegosling.com
On Wed, May 23, 2018 at 7:09 PM, Alex Dvoretskiy <advoretski...@gmail.com>
wrote:
> How do you write test for variadic functions?
>
> For example I have function:
>
> func max(vals ...int) int {
> m := 0
> for _, v := range vals {
> if v > m {
> m = v
> }
> return m
> }
>
>
> and how to write a few tests for it? I can't put vals ...int
> in struct
>
>
> package main
>
> import (
> "testing"
> )
>
> func TestMax(t *testing.T) {
> var tests = []struct {
> vals ...int
> want int
> }{
> {[]int{1,2,3}, 3},
> {[]int{-1,0}, -1},
> {[]int{0}, 0},
> }
>
> for _, test := range tests {
> if got := max(test.vals); got !=test.want {
> t.Errorf("max(%d) = %d", test.vals, got)
> }
> }
>
> }
>
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