public void Test_S2CellUnion_RefuseToDecode()
{
List <S2CellId> cellids = new();
S2CellId id = S2CellId.Begin(S2.kMaxCellLevel);
for (int i = 0; i <= S2CellUnion.Union_decode_max_num_cells; ++i)
{
cellids.Add(id);
id = id.Next();
}
S2CellUnion cell_union = S2CellUnion.FromVerbatim(cellids);
Encoder encoder = new();
cell_union.Encode(encoder);
var decoder = encoder.Decoder();
var(success, _) = S2CellUnion.Decode(decoder);
Assert.False(success);
}
