private static void TestRoundtripEncoding(CodingHint hint)
{
// Ensures that the EncodedS2PointVector can be encoded and decoded without
// loss.
const int level = 3;
var pointsArray = new S2Point[kBlockSize];
pointsArray.Fill(EncodedValueToPoint(0, level));
var pointsList = pointsArray.ToList();
pointsList.Add(EncodedValueToPoint(0x78, level));
pointsList.Add(EncodedValueToPoint(0x7a, level));
pointsList.Add(EncodedValueToPoint(0x7c, level));
pointsList.Add(EncodedValueToPoint(0x84, level));
pointsArray = pointsList.ToArray();
EncodedS2PointVector a_vector = new();
Encoder a_encoder = new();
EncodedS2PointVector b_vector = new();
Encoder b_encoder = new();
// Encode and decode from a vector<S2Point>.
{
EncodedS2PointVector.EncodeS2PointVector(pointsArray, hint, a_encoder);
var decoder = a_encoder.Decoder();
a_vector.Init(decoder);
}
Assert.Equal(pointsList, a_vector.Decode());
// Encode and decode from an EncodedS2PointVector.
{
a_vector.Encode(b_encoder);
var decoder = b_encoder.Decoder();
b_vector.Init(decoder);
}
Assert.Equal(pointsList, b_vector.Decode());
}