public void TestStreamReadWrite()
{
var rnd = new Random();
for (var c = 0; c < count; c++)
{
var memSize = rnd.Next(1, 10_000);
var mem = new byte[(memSize + 4) * writeRepeatCount];
var answer = new byte[memSize * writeRepeatCount];
rnd.NextBytes(answer);
for (var bc = 1; bc < writeRepeatCount; bc++)
{
for (var offset = 0; offset < bc; offset++)
{
var span1 = new MemoryStreamer(mem);
var span2 = new MemoryStreamer(mem);
span1.Write(answer, offset, bc - offset);
var buffer = new byte[bc + offset];
span2.Read(buffer, offset, bc - offset);
Assert.Equal(new Span <byte>(answer).Slice(offset, bc - offset).ToArray(), new Memory <byte>(buffer).Slice(offset, bc - offset).ToArray());
}
}
Assert.Throws <ArgumentNullException>(() =>
{
var s = new MemoryStreamer(mem);
s.Read(null, 0, 1);
});
}
}