diff --git a/test/04_session.js b/test/04_session.js
index 7122cdf..6794286 100644
--- a/test/04_session.js
+++ b/test/04_session.js
@@ -224,4 +224,76 @@ describe('Sessions', function() {
 		});
 	});
 
+	it('should send a long sms and receive dlrs for it', function(done) {
+		portfinder.getPort(function(err, freePort) {
+			assert( ! err, 'Error should not be negative');
+
+			larvitsmpp.server({
+				'port': freePort
+			}, function(err, serverSession) {
+				assert( ! err, 'Error should not be negative');
+
+				serverSession.on('sms', function(sms) {
+					sms.smsId = 2343;
+
+					sms.sendResp(function(err) {
+						assert( ! err, 'Error should not be negative');
+
+						assert(sms.dlr === true, 'sms.dlr should be true');
+
+						// Send the DLR(s)
+						sms.sendDlr(true);
+					});
+				});
+
+				serverSession.on('close', function() {
+					// Manually destroy the server socket
+					serverSession.sock.destroy();
+				});
+			});
+
+			larvitsmpp.client({
+				'port': freePort
+			}, function(err, clientSession) {
+				var sentSmsId;
+
+				assert( ! err, 'Error should not be negative');
+
+				clientSession.on('dlr', function(dlr) {
+					assert(dlr.statusMsg === 'DELIVERED', 'DLR statusMsg should be "DELIVERED"');
+					assert(dlr.smsId.toString() === sentSmsId.toString(), 'SmsId should be "' + sentSmsId.toString() + '"');
+
+					// Gracefully close connection
+					clientSession.unbind();
+
+					done();
+				});
+
+				clientSession.sendSms({
+					'from': 'foo',
+					'to': '46709771337',
+					'message': 'Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industrys standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised.',
+					'dlr': true
+				}, function(err, smsIds, retPduObjs) {
+					assert( ! err, 'Error should not be negative');
+
+					assert(smsIds instanceof Array, 'smsIds should be an Array');
+					assert(smsIds[0] === '2343-1', 'First smsId should be "2343-1"');
+					assert(smsIds[1] === '2343-2', 'Second smsId should be "2343-2"');
+					assert(smsIds[2] === '2343-3', 'Third smsId should be "2343-3"');
+					assert(smsIds[3] === undefined, 'Fourth smsId should be undefined');
+					assert(retPduObjs[0].cmdStatus === 'ESME_ROK', 'Command status should be "ESME_ROK"');
+					assert(retPduObjs[0].cmdName === 'submit_sm_resp', 'Command name should be "submit_sm_resp"');
+					assert(retPduObjs[1].cmdStatus === 'ESME_ROK', 'Command status should be "ESME_ROK"');
+					assert(retPduObjs[1].cmdName === 'submit_sm_resp', 'Command name should be "submit_sm_resp"');
+					assert(retPduObjs[2].cmdStatus === 'ESME_ROK', 'Command status should be "ESME_ROK"');
+					assert(retPduObjs[2].cmdName === 'submit_sm_resp', 'Command name should be "submit_sm_resp"');
+
+					// Save the SMS id to match the DLR for
+					sentSmsId = smsIds[0].split('-')[0];
+				});
+			});
+		});
+	});
+
 });
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