public void Serialize()
{
var buffer = new byte[1024];
var random = new Random();
byte[] hash = random.NextBytes(20);
var f = new Fingerprint(ValueKind.List, 123, hash);
Assert.Equal(
new Fingerprint(ValueKind.List, 123, hash.ToImmutableList()).Serialize(),
f.Serialize()
);
Assert.Equal(f, Fingerprint.Deserialize(f.Serialize()));
long estimatedSize = f.CountSerializationBytes();
Assert.Equal(f.Serialize().LongLength, estimatedSize);
long writtenSize = f.SerializeInto(buffer, 128L);
Assert.Equal(estimatedSize, writtenSize);
AssertEqual(f.Serialize(), buffer.Skip(128).Take((int)writtenSize).ToArray());
Assert.Equal(f, Fingerprint.Deserialize(buffer, 128L, writtenSize));
var s = new MemoryStream();
var formatter = new BinaryFormatter();
formatter.Serialize(s, f);
s.Seek(0, SeekOrigin.Begin);
Assert.Equal(f, (Fingerprint)formatter.Deserialize(s));
hash = random.NextBytes(20);
f = new Fingerprint(ValueKind.Dictionary, 456, hash);
Assert.Equal(f, Fingerprint.Deserialize(f.Serialize()));
estimatedSize = f.CountSerializationBytes();
Assert.Equal(f.Serialize().LongLength, estimatedSize);
writtenSize = f.SerializeInto(buffer, 512L);
Assert.Equal(estimatedSize, writtenSize);
AssertEqual(f.Serialize(), buffer.Skip(512).Take((int)writtenSize).ToArray());
Assert.Equal(f, Fingerprint.Deserialize(buffer, 512L, writtenSize));
byte[] tooShort = f.Serialize().Take(8).ToArray();
FormatException e = Assert.Throws <FormatException>(
() => Fingerprint.Deserialize(tooShort)
);
Assert.Contains("too short", e.Message, StringComparison.OrdinalIgnoreCase);
byte[] invalidKind = f.Serialize();
invalidKind[0] = byte.MaxValue;
e = Assert.Throws <FormatException>(
() => Fingerprint.Deserialize(invalidKind)
);
Assert.Contains("invalid value kind", e.Message, StringComparison.OrdinalIgnoreCase);
s = new MemoryStream();
formatter.Serialize(s, f);
s.Seek(0, SeekOrigin.Begin);
Assert.Equal(f, (Fingerprint)formatter.Deserialize(s));
}