public static void ReadWriteUsingArray()
{
using var writer = new PooledArrayBufferWriter <byte>(ArrayPool <byte> .Shared, 25);
True(writer.Capacity >= 25);
True(writer.WrittenArray.Count == 0);
Equal(0, writer.WrittenCount);
var memory = writer.GetArray(100);
new ArraySegment <byte>(new byte[] { 10, 20, 30 }).CopyTo(memory);
writer.Advance(3);
var result = writer.WrittenArray;
Equal(3, result.Count);
Equal(3, writer.WrittenCount);
Equal(10, result[0]);
Equal(20, result[1]);
Equal(30, result[2]);
memory = writer.GetArray(3);
new ArraySegment <byte>(new byte[] { 40, 50, 60 }).CopyTo(memory);
writer.Advance(3);
result = writer.WrittenArray;
Equal(6, writer.WrittenCount);
Equal(6, result.Count);
Equal(10, result[0]);
Equal(20, result[1]);
Equal(30, result[2]);
Equal(40, result[3]);
Equal(50, result[4]);
Equal(60, result[5]);
}
public static void ReuseArrayWriter()
{
using var writer = new PooledArrayBufferWriter <byte>();
var span = writer.GetSpan(10);
span[0] = 20;
span[9] = 30;
writer.Advance(10);
writer.Clear();
span = writer.GetSpan(10);
span[0] = 40;
span[9] = 50;
writer.Advance(10);
Equal(40, writer.WrittenMemory.Span[0]);
Equal(50, writer.WrittenMemory.Span[9]);
}
public static void StreamInterop()
{
using var writer = new PooledArrayBufferWriter <byte>();
var span = writer.GetSpan(10);
new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 }.AsSpan().CopyTo(span);
writer.Advance(10);
using var stream = StreamSource.GetWrittenBytesAsStream(writer);
True(stream.CanRead);
False(stream.CanWrite);
Equal(0, stream.Position);
Equal(10, stream.Length);
var buffer = new byte[10];
Equal(10, stream.Read(buffer, 0, 10));
for (var i = 0; i < buffer.Length; i++)
{
Equal(i, buffer[i]);
}
}