public void CopyToTest() { using NativeBuffer buffer = new NativeBuffer(20); buffer.Write(1); buffer.Write(2); buffer.Write(4); buffer.Write(8); Span <byte> span = stackalloc byte[8]; buffer.CopyTo(span, 0, 8); Assert.AreEqual(1, span[0]); Assert.AreEqual(0, span[1]); Assert.AreEqual(0, span[2]); Assert.AreEqual(0, span[3]); Assert.AreEqual(2, span[4]); Assert.AreEqual(0, span[5]); Assert.AreEqual(0, span[6]); Assert.AreEqual(0, span[7]); }