mock-dgram

mock-dgram

Mock UDP socket using object streams

Example

var MockDgram = require('mock-dgram');

var md = new MockDgram();

var msgIn = {
  ip: { src: '1.1.1.1' },
  udp: { srcPort: 52, dataLength: 500 }
  data: new Buffer(500)
};

md.on('message', function (buf, rinfo) {
  test.deepEqual(msgIn.data, buf);      // true
  rinfo.address === msgIn.ip.src;       // true
  rinfo.port === msgIn.udp.srcPort;     // true
  rinfo.size === msgIn.udp.dataLength;  // true
});
md.input.write(msgIn);

var bufOut = new Buffer(100);
var portOut = 52;
var addressOut = '1.1.1.1';

md.send(bufOut, 0, bufOut.length, portOut, addressOut);

var msgOut = md.output.read();

test.deepEqual(bufOut, msgOut.data);    // true
msgOut.ip.dst === addressOut;           // true
msgOut.udp.dstPort === portOut;         // true

Description

Provide a mock implementation of the dgram.Socket API.

Inject data into the mock using the input PassThrough stream. This data will then be emitted via the 'message' event.

Receive data passed to the send() function by reading from the output PassThrough stream.