// example 1 (figure 11)
public static Request Basic_get_request_causing_a_piggy_backed_response(int id = 0x7d34)
{
var request = new Request(CodeRegistry.Get, true) { Id = id, Uri = new Uri("coap://server/temperature") };
ResourceMock.Setup(r => r.CanGet(It.IsAny<Uri>())).Returns(true);
ResourceMock.Setup(r => r.Get(It.IsAny<Uri>())).Returns(ByteConverter.GetBytes("22.3 C"));
return request;
}
public void SendRequest()
{
var uri = new Uri("coap://127.0.0.1/temperature");
var request = new Request(CodeRegistry.Get, true) { Uri = uri };
request.AddOption(new Option(OptionNumber.Token, ByteConverter.GetBytes(0xcafe)));
_messageLayer.Send(request);
}
public void Should_get_uri()
{
var request = new Request(CodeRegistry.Get, false) { RemoteAddress = "server" };
request.AddOption(new Option(OptionNumber.UriPath, ByteConverter.GetBytes("temperature")));
Assert.AreEqual("coap://server/temperature", request.Uri.ToString());
Assert.AreEqual(1, request.OptionCount);
}
private void Respond(Request request, bool isPiggyBacked = false)
{
var type = isPiggyBacked ? MessageType.Acknowledgement : request.Type;
var code = CodeRegistry.Content;
var payload = new byte[0];
try {
payload = _resource.Get(request.Uri);
}
catch (ResponseError error) {
code = error.Code;
}
var response = new Response(type, code) {
Payload = payload,
RemoteAddress = request.RemoteAddress,
Port = request.Port,
Token = request.Token
};
if (isPiggyBacked) {
response.Id = request.Id;
}
_messageLayer.Send(response);
}
// example 2 (figure 3): Blockwise GET with early negotiation
public static Request Blockwise_get_with_early_negotiation(int num)
{
var id = 1234 + num;
var uri = new Uri("coap://server/status");
var request = new Request(CodeRegistry.Get, true) { Id = id, Uri = uri };
request.AddOption(new BlockOption(OptionNumber.Block2, num, 0, BlockOption.EncodeSzx(64)));
return request;
}
public void Should_set_uri()
{
var request = new Request(CodeRegistry.Get, true) { Uri = new Uri("coap://[2001:db8::2:1]") };
Assert.AreEqual("[2001:0DB8:0000:0000:0000:0000:0002:0001]", request.RemoteAddress);
Assert.AreEqual(5683, request.Port);
Assert.AreEqual(0, GetCount(request, OptionNumber.UriPath));
Assert.AreEqual(0, GetCount(request, OptionNumber.UriQuery));
}
public void Should_serialize_long_option()
{
var request = new Request(CodeRegistry.Get, true) { Uri = new Uri("coap://server/_seventeen_chars_") };
var bytes = _serializer.Serialize(request);
var bits = Util.GetBits(bytes, 4, 2);
Assert.AreEqual(23, bytes.Length);
Assert.AreEqual("1001111100000010", bits);
}
public void Should_cancel_retransmission_if_reply_received()
{
var request = new Request(CodeRegistry.Get, true);
_messageLayer.Send(request);
var ack = new Message(MessageType.Acknowledgement) { Id = request.Id };
_messageLayer.OnReceive(ack);
Assert.AreEqual(0, _messageLayer.Retransmissions.Count());
}
public void Should_set_uri_with_query()
{
var request = new Request(CodeRegistry.Get, true) { Uri = new Uri("coap://198.51.100.1:61616//%2F//?%2F%2F&?%26") };
Assert.AreEqual("198.51.100.1", request.RemoteAddress);
Assert.AreEqual(61616, request.Port);
Assert.AreEqual(4, GetCount(request, OptionNumber.UriPath));
Assert.AreEqual(2, GetCount(request, OptionNumber.UriQuery));
}
public void Should_reply_duplicated_requests_from_cache_if_confirmable()
{
var request = new Request(CodeRegistry.Get, true) { Id = 1 };
var ack = new Message(MessageType.Acknowledgement) { Id = 1 };
_messageLayer.OnReceive(request);
_messageLayer.Send(ack);
_messageLayer.OnReceive(request);
_observer.Verify(h => h.OnReceive(request), Times.Once());
_lowerLayerMock.Verify(l => l.Send(ack), Times.Exactly(2));
}
public void Non_confirmable_message_should_carry_request()
{
var request = new Request(CodeRegistry.Get, false);
Assert.IsNotNull(request);
}
private bool CanBePiggyBacked(Request request)
{
return _resource.CanGet(request.Uri);
}
private void Accept(Request request)
{
var ack = new Message(MessageType.Acknowledgement) { Id = request.Id };
_messageLayer.Send(ack);
}
// example 7 (figure 9): Simple atomic blockwise PUT with negotiation
public static Request Simple_atomic_blockwise_put_with_negotiation()
{
var uri = new Uri("coap://server/options");
var request = new Request(CodeRegistry.Put, true) { Id = 1234, Uri = uri, Token = ByteConverter.GetBytes(0x17), Payload = new byte[224] };
return request;
}
// example 7 (figure 17)
public static Request Basic_get_request_where_the_request_and_response_are_non_confirmable()
{
var request = new Request(CodeRegistry.Get, false) { Id = 0x7d40, Uri = new Uri("coap://server/temperature"), Token = ByteConverter.GetBytes(0x75) };
ResourceMock.Setup(r => r.Get(It.IsAny<Uri>())).Returns(ByteConverter.GetBytes("22.3 C"));
return request;
}
// example 5 (figure 15)
public static Request Basic_get_request_causing_a_separate_response()
{
var request = new Request(CodeRegistry.Get, true) { Id = 0x7d38, Uri = new Uri("coap://server/temperature"), Token = ByteConverter.GetBytes(0x53) };
ResourceMock.Setup(r => r.Get(It.IsAny<Uri>())).Returns(ByteConverter.GetBytes("22.3 C"));
return request;
}
// example 1 (figure 2): Simple blockwise GET
public static Request Simple_blockwise_get()
{
var uri = new Uri("coap://server/status");
var request = new Request(CodeRegistry.Get, true) { Id = 1234, Uri = uri };
return request;
}
public void Should_schedule_retransmission_if_confirmable()
{
var request = new Request(CodeRegistry.Get, true);
_messageLayer.Send(request);
Assert.AreEqual(1, _messageLayer.Retransmissions.Count());
}
public void SetUp()
{
_request = new Request(CodeRegistry.Get, true);
}
private static int GetCount(Request request, OptionNumber number)
{
return request.Options.Where(o => o.Number == number).Count();
}
public void Should_set_uri_with_special_characters()
{
var request = new Request(CodeRegistry.Get, true) { Uri = new Uri("coap://xn--18j4d.example/%E3%81%93%E3%82%93%E3%81%AB%E3%81%A1%E3%81%AF") };
var uriPath = ByteConverter.GetString(request.GetFirstOption(OptionNumber.UriPath).Value);
Assert.AreEqual("%E3%81%93%E3%82%93%E3%81%AB%E3%81%A1%E3%81%AF", uriPath);
}
public void Should_set_uri_with_path()
{
var request = new Request(CodeRegistry.Get, true) { Uri = new Uri("coap://example.net/.well-known/core") };
Assert.AreEqual(2, GetCount(request, OptionNumber.UriPath));
}
