public void TestReadOnlyMemory()
{
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);
var span1 = new MemoryStreamer(mem);
var span2 = new MemoryStreamer(mem);
for (var i = 0; i < writeRepeatCount; i++)
{
var a = new Span <byte>(answer).Slice(memSize * i, memSize);
span1.Write(a);
}
// Ensure span is not zero
var ac = 0;
for (var wrc = 0; wrc < writeRepeatCount; wrc++)
{
var r = span2.ReadBytes(memSize);
for (var i = 0; i < r.Length; i++)
{
Assert.Equal(answer[ac++], r[i]);
}
}
Assert.Throws <ArgumentException>(() =>
{
var s = new MemoryStreamer(mem);
s.Write(new Span <byte>(new byte[mem.Length + 1]));
});
}
}