'Callbacks are called with a null argument for success': function() {
var fakeSocket = {send: sinon.spy()};
var fakePort = 12345;
var fakeIp = '255.0.23.42';
var control = new UdpControl({
socket : fakeSocket,
port : fakePort,
ip : fakeIp,
});
var callback = sinon.spy();
control.config('general:navdata_demo', 'TRUE', callback);
control.flush();
control.ack();
control.ackReset();
assert.equal(callback.callCount, 1);
assert(callback.calledOn(control));
assert.equal(callback.getCall(0).args.length, 1);
assert.deepEqual(callback.getCall(0).args[0], null);
},
'Sends non-blocking, then a single blocking command until getting an ack': function() {
var fakeSocket = {send: sinon.spy()};
var fakePort = 12345;
var fakeIp = '255.0.23.42';
var control = new UdpControl({
socket : fakeSocket,
port : fakePort,
ip : fakeIp,
});
var ref = control.ref();
assert.equal(ref.type, 'REF');
var pcmd = control.pcmd();
assert.equal(pcmd.type, 'PCMD');
var config1 = control.config('general:navdata_demo', 'TRUE');
var config2 = control.config('general:navdata_demo', 'FALSE');
control.flush();
assert.equal(fakeSocket.send.callCount, 2);
// Should have gotten the non-blocking commands first.
var sendArgs = fakeSocket.send.getCall(0).args;
var buffer = sendArgs.shift();
var offset = sendArgs.shift();
var length = sendArgs.shift();
var port = sendArgs.shift();
var ip = sendArgs.shift();
assert.equal(Buffer.isBuffer(buffer), true);
assert.deepEqual(buffer.toString(), ref.serialize(0) + pcmd.serialize(1));
assert.deepEqual(offset, 0);
assert.deepEqual(length, buffer.length);
assert.deepEqual(port, fakePort);
assert.deepEqual(ip, fakeIp);
// Should have sent a single non-blocking command second.
sendArgs = fakeSocket.send.getCall(1).args;
buffer = sendArgs.shift();
offset = sendArgs.shift();
length = sendArgs.shift();
port = sendArgs.shift();
ip = sendArgs.shift();
assert.equal(Buffer.isBuffer(buffer), true);
assert.deepEqual(buffer.toString(), config1.serialize(2));
assert.deepEqual(offset, 0);
assert.deepEqual(length, buffer.length);
assert.deepEqual(port, fakePort);
assert.deepEqual(ip, fakeIp);
// Another flush should result in nothing additional sent, since
// we didn't get an ACK so we're still blocked on the first ACK.
control.flush();
assert.equal(fakeSocket.send.callCount, 2);
// Signal an ACK, then flush, and we should see a CTRL command get
// sent to reset the ACK state.
control.ack();
control.flush();
var ctrl = new AtCommand('CTRL', [5, 0]);
sendArgs = fakeSocket.send.getCall(2).args;
buffer = sendArgs.shift();
offset = sendArgs.shift();
length = sendArgs.shift();
port = sendArgs.shift();
ip = sendArgs.shift();
assert.equal(Buffer.isBuffer(buffer), true);
assert.deepEqual(buffer.toString(), ctrl.serialize(3));
assert.deepEqual(offset, 0);
assert.deepEqual(length, buffer.length);
assert.deepEqual(port, fakePort);
assert.deepEqual(ip, fakeIp);
// Signal the ACK reset, then flush, and we should see the 2nd
// CONFIG be sent.
control.ackReset();
control.flush();
sendArgs = fakeSocket.send.getCall(3).args;
buffer = sendArgs.shift();
offset = sendArgs.shift();
length = sendArgs.shift();
port = sendArgs.shift();
ip = sendArgs.shift();
assert.equal(Buffer.isBuffer(buffer), true);
assert.deepEqual(buffer.toString(), config2.serialize(4));
assert.deepEqual(offset, 0);
assert.deepEqual(length, buffer.length);
assert.deepEqual(port, fakePort);
assert.deepEqual(ip, fakeIp);
// Nothing should be sent for the final flush.
control.flush();
assert.equal(fakeSocket.send.callCount, 4);
},