Fix generation of packet identifier.

2026-11-05 14:02:55 +08:00 · 2018-02-02 00:46:47 +01:00
parent 5f77255893
commit 26cd84c88c
4 changed files with 71 additions and 11 deletions
@@ -0,0 +1,32 @@
+using Microsoft.VisualStudio.TestTools .UnitTesting;
+using MQTTnet.Client;
+
+namespace MQTTnet.Core.Tests
+{
+    [TestClass]
+    public class MqttPacketIdentifierProviderTests
+    {
+        [TestMethod]
+        public void Reset()
+        {
+            var p = new MqttPacketIdentifierProvider();
+            Assert.AreEqual(1, p.GetNewPacketIdentifier());
+            Assert.AreEqual(2, p.GetNewPacketIdentifier());
+            p.Reset();
+            Assert.AreEqual(1, p.GetNewPacketIdentifier());
+        }
+
+        [TestMethod]
+        public void ReachBoundaries()
+        {
+            var p = new MqttPacketIdentifierProvider();
+
+            for (ushort i = 0; i < ushort.MaxValue; i++)
+            {
+                Assert.AreEqual(i + 1, p.GetNewPacketIdentifier());
+            }
+
+            Assert.AreEqual(1, p.GetNewPacketIdentifier());
+        }
+    }
+}