if test.status.AsError().Error() != test.expectedAsError.Error() {
				t.Errorf("expect status.AsError() returns %v, but %v", test.expectedAsError, test.status.AsError())
			}
		})
	}
}

func TestPreFilterResultMerge(t *testing.T) {
	tests := map[string]struct {
		receiver *PreFilterResult
		in       *PreFilterResult
		want     *PreFilterResult
	}{
		"all nil": {},
		"nil receiver empty input": {