func TestJSONBuiltinUnmarshalFieldKnownErrors(t *testing.T) {
	var m runtime.JSONBuiltin
	for _, fixt := range builtinKnownErrors {
		dest := reflect.New(reflect.TypeOf(fixt.data))
		if err := m.Unmarshal([]byte(fixt.json), dest.Interface()); err == nil {
			t.Errorf("m.Unmarshal(%q, dest) succeeded; want ane error", fixt.json)
		}
	}
}
func TestJSONBuiltinUnmarshalField(t *testing.T) {
	var m runtime.JSONBuiltin
	for _, fixt := range builtinFieldFixtures {
		dest := reflect.New(reflect.TypeOf(fixt.data))
		if err := m.Unmarshal([]byte(fixt.json), dest.Interface()); err != nil {
			t.Errorf("m.Unmarshal(%q, dest) failed with %v; want success", fixt.json, err)
		}

		if got, want := dest.Elem().Interface(), fixt.data; !reflect.DeepEqual(got, want) {
			t.Errorf("got = %#v; want = %#v; input = %q", got, want, fixt.json)
		}
	}
}
func TestJSONBuiltinsnmarshal(t *testing.T) {
	var (
		m   runtime.JSONBuiltin
		got examplepb.SimpleMessage

		data = []byte(`{"id": "foo"}`)
	)
	if err := m.Unmarshal(data, &got); err != nil {
		t.Errorf("m.Unmarshal(%q, &got) failed with %v; want success", data, err)
	}

	want := examplepb.SimpleMessage{
		Id: "foo",
	}
	if !reflect.DeepEqual(got, want) {
		t.Errorf("got = %v; want = %v", &got, &want)
	}
}