`instead of graph.proto`.
*   `ops.NoGradient` was renamed `ops.NotDifferentiable`. `ops.NoGradient` will
    be removed soon.
*   `dot.h` / DotGraph was removed (it was an early analysis tool prior to
    TensorBoard, no longer that useful). It remains in history should someone
    find the code useful.
*   re2 / regexp.h was removed from being a public interface of TF. Should users

			t.Errorf("Unexpected failure for scenario: %s - %+v", name, errs)
		}
		if diff := cmp.Diff(originalNewPV, scenario.newPV); len(diff) > 0 {
			t.Errorf("newPV was modified: %s", diff)
		}
		if diff := cmp.Diff(originalOldPV, scenario.oldPV); len(diff) > 0 {
			t.Errorf("oldPV was modified: %s", diff)
		}
	}
}

func TestValidatePeristentVolumeAttributesClassUpdate(t *testing.T) {
	scenarios := map[string]struct {