const provisionerPluginName … // TestStorageClasses tests apiserver-side behavior of creation of storage class objects and their use by pvcs. func TestStorageClasses(t *testing.T) { … } // DoTestStorageClasses tests storage classes for one api version. func DoTestStorageClasses(t *testing.T, client clientset.Interface, ns *v1.Namespace) { … } func deleteStorageClassOrErrorf(t *testing.T, c clientset.Interface, ns, name string) { … } func deletePersistentVolumeClaimOrErrorf(t *testing.T, c clientset.Interface, ns, name string) { … }