public void CouldCompressWithHeader(int seed, bool silent = false)
{
var rm = BufferPool.Retain(1000000);
var db = new DirectBuffer(rm.Span);
var rm1 = BufferPool.Retain(1000000);
var db1 = new DirectBuffer(rm1.Span);
var rm2 = BufferPool.Retain(1000000);
var db2 = new DirectBuffer(rm2.Span);
var count = 1000;
var rng = new Random(seed);
var values = new TestValue[count];
var dest = db;
var payloadSize = 0;
for (int i = 0; i < count; i++)
{
var ts = TimeService.Default.CurrentTime;
var value = TestValue.Create(rng, false); // TODO with true, currently doubles are not equal in some cases, se upstream issue 83
values[i] = value;
var size = BinarySerializer.SizeOf(in value, out var tmpBuffer, SerializationFormat.Json);
var written = BinarySerializer.Write(in value, dest, tmpBuffer, SerializationFormat.Json);
if (size != written)
{
Assert.Fail($"size {size} != written {written}");
}
dest = dest.Slice(written);
payloadSize += written;
}
if (!silent)
{
Console.WriteLine($"Payload size: {payloadSize}");
}
//Settings.ZlibCompressionLevel = 9;
//Settings.LZ4CompressionLevel = 9;
//Settings.ZstdCompressionLevel = 9;
foreach (var method in new[] { CompressionMethod.GZip, CompressionMethod.Lz4, CompressionMethod.Zstd })
{
var compressed = BinarySerializer.Compress(db.Slice(0, payloadSize).Span, db1.Span, method);
if (!silent)
{
Console.WriteLine(
$"{method}: compressed size: {compressed}, ratio: {Math.Round(payloadSize / (compressed * 1.0), 2)}");
}
var decomrpessed = BinarySerializer.Decompress(db1.Slice(0, compressed).Span, db2.Span, method);
if (decomrpessed != payloadSize)
{
Assert.Fail($"decomrpessed {decomrpessed} != payloadSize {payloadSize}");
}
for (int i = 0; i < count; i++)
{
var read = BinarySerializer.Read(db2, out TestValue value1);
db2 = db2.Slice(read);
var expected = values[i];
if (!value1.Equals(expected))
{
Assert.Fail($"value1 != values[i]");
}
}
}
rm.Dispose();
rm1.Dispose();
rm2.Dispose();
}