import (
	"testing"

	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/apimachinery/pkg/util/sets"

	"k8s.io/kubernetes/pkg/apis/core"
	"k8s.io/kubernetes/pkg/apis/storage"
)

func TestStorageClassWarnings(t *testing.T) {
	testcases := []struct {
		name     string
		template *storage.StorageClass
		expected []string
	}{
		{
			name:     "null",
			template: nil,
			expected: nil,
		},
		{