diff --git a/staging/src/k8s.io/apiserver/pkg/endpoints/apiserver_test.go b/staging/src/k8s.io/apiserver/pkg/endpoints/apiserver_test.go
index cddd43344db..10c75b74d01 100644
--- a/staging/src/k8s.io/apiserver/pkg/endpoints/apiserver_test.go
+++ b/staging/src/k8s.io/apiserver/pkg/endpoints/apiserver_test.go
@@ -38,6 +38,7 @@ import (
 	"time"
 
 	restful "github.com/emicklei/go-restful"
+
 	fuzzer "k8s.io/apimachinery/pkg/api/apitesting/fuzzer"
 	apiequality "k8s.io/apimachinery/pkg/api/equality"
 	apierrs "k8s.io/apimachinery/pkg/api/errors"
@@ -85,6 +86,8 @@ func (alwaysMutatingDeny) Handles(operation admission.Operation) bool {
 	return true
 }
 
+var _ admission.MutationInterface = &alwaysMutatingDeny{}
+
 type alwaysValidatingDeny struct{}
 
 func (alwaysValidatingDeny) Validate(ctx context.Context, a admission.Attributes, o admission.ObjectInterfaces) (err error) {
@@ -95,6 +98,8 @@ func (alwaysValidatingDeny) Handles(operation admission.Operation) bool {
 	return true
 }
 
+var _ admission.ValidationInterface = &alwaysValidatingDeny{}
+
 // This creates fake API versions, similar to api/latest.go.
 var testAPIGroup = "test.group"
 var testAPIGroup2 = "test.group2"
@@ -3752,7 +3757,7 @@ type namePopulatorAdmissionControl struct {
 	populateName string
 }
 
-func (npac *namePopulatorAdmissionControl) Validate(a admission.Attributes, o admission.ObjectInterfaces) (err error) {
+func (npac *namePopulatorAdmissionControl) Validate(ctx context.Context, a admission.Attributes, o admission.ObjectInterfaces) (err error) {
 	if a.GetName() != npac.populateName {
 		npac.t.Errorf("Unexpected name: got %q, expected %q", a.GetName(), npac.populateName)
 	}
@@ -3763,6 +3768,8 @@ func (npac *namePopulatorAdmissionControl) Handles(operation admission.Operation
 	return true
 }
 
+var _ admission.ValidationInterface = &namePopulatorAdmissionControl{}
+
 func TestNamedCreaterWithGenerateName(t *testing.T) {
 	populateName := "bar"
 	storage := &SimpleRESTStorage{