Add a loader test.

api/loader/getter.go

@@ -7,11 +7,13 @@ import (
 	"context"
 	"log"
 	"os"
+	"time"
 
 	"github.com/yujunz/go-getter"
 	"sigs.k8s.io/kustomize/api/filesys"
 	"sigs.k8s.io/kustomize/api/ifc"
 	"sigs.k8s.io/kustomize/api/internal/git"
+	"sigs.k8s.io/kustomize/api/types"
 )
 
 type remoteTargetSpec struct {
@@ -28,7 +30,12 @@ type remoteTargetSpec struct {
 // Getter is a function that can gets resource
 type remoteTargetGetter func(rs *remoteTargetSpec) error
 
-func newLoaderAtGetter(raw string, fSys filesys.FileSystem, referrer *fileLoader, cloner git.Cloner, getter remoteTargetGetter) (ifc.Loader, error) {
+func newLoaderAtGetter(
+	raw string,
+	fSys filesys.FileSystem,
+	referrer *fileLoader,
+	cloner git.Cloner,
+	getter remoteTargetGetter) (ifc.Loader, error) {
 	rs := &remoteTargetSpec{
 		Raw: raw,
 	}
@@ -86,7 +93,22 @@ func getRemoteTarget(rs *remoteTargetSpec) error {
 		},
 		Options: opts,
 	}
-	return client.Get()
+
+	ch := make(chan bool, 1)
+	defer close(ch)
+	d := 21 * time.Second // arbitrary
+	timer := time.NewTimer(d)
+	defer timer.Stop()
+	go func() {
+		err = client.Get()
+		ch <- true
+	}()
+	select {
+	case <-ch:
+	case <-timer.C:
+		err = types.NewErrTimeOut(d, "go-getter client.Get")
+	}
+	return err
 }
 
 func getNothing(rs *remoteTargetSpec) error {