public void It_should_marshal_native_memory_to_JS()
{
var ptr = Marshal.AllocHGlobal(4);
Marshal.WriteByte(ptr, 0, 1);
Marshal.WriteByte(ptr, 1, 2);
Marshal.WriteByte(ptr, 2, 3);
Marshal.WriteByte(ptr, 3, 4);
using var memory = NativeMemory.Create(ptr, 4, (pointer, _) => Marshal.FreeHGlobal(pointer));
Global.testObject.assertByteArray(memory);
}
public void It_should_directly_access_array_buffer_created_from_dotnet_memory()
{
var ptr = Marshal.AllocHGlobal(4);
Marshal.WriteByte(ptr, 0, 1);
Marshal.WriteByte(ptr, 1, 2);
Marshal.WriteByte(ptr, 2, 3);
Marshal.WriteByte(ptr, 3, 4);
using var memory = NativeMemory.Create(ptr, 4, (pointer, _) => Marshal.FreeHGlobal(pointer));
var jsArray = Global.Uint8Array.CreateNewInstance(memory);
using var arrayBuffer = (ArrayBuffer)jsArray.buffer;
Global.testObject.assertByteArray(jsArray);
arrayBuffer.ByteLength.Should().Be(4);
Marshal.ReadByte(arrayBuffer.Address, 0).Should().Be(1);
Marshal.ReadByte(arrayBuffer.Address, 3).Should().Be(4);
// TODO: Why is this not true?
//Marshal.WriteByte(ptr, 0, 5);
//Marshal.ReadByte(arrayBuffer.Address, 0).Should().Be(5);
//arrayBuffer.Address.Should().Be(ptr);
}
