@@ -22,6 +22,7 @@ import (
2222 "os"
2323 "os/exec"
2424 "path/filepath"
25+ "reflect"
2526 "runtime"
2627 "strings"
2728 "testing"
@@ -2850,6 +2851,53 @@ func betaFeaturesEnabled() bool {
28502851 return os .Getenv ("ENABLE_BETA" ) == "1"
28512852}
28522853
2854+ // isEmpty gets whether the specified object is considered empty or not.
2855+ func isEmpty (object interface {}) bool {
2856+ // get nil case out of the way
2857+ if object == nil {
2858+ return true
2859+ }
2860+
2861+ objValue := reflect .ValueOf (object )
2862+
2863+ switch objValue .Kind () {
2864+ // collection types are empty when they have no element
2865+ case reflect .Chan , reflect .Map , reflect .Slice :
2866+ return objValue .Len () == 0
2867+ // pointers are empty if nil or if the value they point to is empty
2868+ case reflect .Ptr :
2869+ if objValue .IsNil () {
2870+ return true
2871+ }
2872+ deref := objValue .Elem ().Interface ()
2873+ return isEmpty (deref )
2874+ // for all other types, compare against the zero value
2875+ // array types are empty when they match their zero-initialized state
2876+ default :
2877+ zero := reflect .Zero (objValue .Type ())
2878+ return reflect .DeepEqual (object , zero .Interface ())
2879+ }
2880+ }
2881+
2882+ // requireExactlyOneNotEmpty accepts any number of values and calls t.Fatal if
2883+ // less or more than one is empty.
2884+ func requireExactlyOneNotEmpty (t * testing.T , v ... any ) {
2885+ if len (v ) == 0 {
2886+ t .Fatal ("Expected some values for requireExactlyOneNotEmpty, but received none" )
2887+ }
2888+
2889+ empty := 0
2890+ for _ , value := range v {
2891+ if isEmpty (value ) {
2892+ empty += 1
2893+ }
2894+ }
2895+
2896+ if empty != len (v )- 1 {
2897+ t .Fatalf ("Expected exactly one value to not be empty, but found %d empty values" , empty )
2898+ }
2899+ }
2900+
28532901// Useless key but enough to pass validation in the API
28542902const testGpgArmor string = `
28552903-----BEGIN PGP PUBLIC KEY BLOCK-----
0 commit comments