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Improve session takeover and keep alive handling.

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This commit is contained in:
Christian Kratky
2020-10-31 20:59:41 +01:00
parent 1625aadae9
commit 24f0ea01f5
8 changed files with 148 additions and 118 deletions
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Tests/MQTTnet.Core.Tests/Server_KeepAlive_Tests.cs
+23 -5
View File
@@ -2,7 +2,9 @@
using System.Threading;
using System.Threading.Tasks;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using MQTTnet.Formatter;
using MQTTnet.Packets;
using MQTTnet.Protocol;
using MQTTnet.Tests.Mockups;
namespace MQTTnet.Tests
@@ -17,7 +19,9 @@ namespace MQTTnet.Tests
{
var server = await testEnvironment.StartServerAsync();
var client = await testEnvironment.ConnectLowLevelClientAsync(o => o.WithCommunicationTimeout(TimeSpan.FromSeconds(2))).ConfigureAwait(false);
var client = await testEnvironment.ConnectLowLevelClientAsync(o => o
.WithCommunicationTimeout(TimeSpan.FromSeconds(2))
.WithProtocolVersion(MqttProtocolVersion.V500)).ConfigureAwait(false);
await client.SendAsync(new MqttConnectPacket
{
@@ -32,11 +36,23 @@ namespace MQTTnet.Tests
await client.SendAsync(MqttPingReqPacket.Instance, CancellationToken.None);
await Task.Delay(500);
var responsePacket = await client.ReceiveAsync(CancellationToken.None);
Assert.IsTrue(responsePacket is MqttPingRespPacket);
await client.SendAsync(MqttPingReqPacket.Instance, CancellationToken.None);
await Task.Delay(500);
responsePacket = await client.ReceiveAsync(CancellationToken.None);
Assert.IsTrue(responsePacket is MqttPingRespPacket);
await client.SendAsync(MqttPingReqPacket.Instance, CancellationToken.None);
await Task.Delay(500);
responsePacket = await client.ReceiveAsync(CancellationToken.None);
Assert.IsTrue(responsePacket is MqttPingRespPacket);
await client.SendAsync(MqttPingReqPacket.Instance, CancellationToken.None);
await Task.Delay(500);
responsePacket = await client.ReceiveAsync(CancellationToken.None);
Assert.IsTrue(responsePacket is MqttPingRespPacket);
// If we reach this point everything works as expected (server did not close the connection
// due to proper ping messages.
@@ -44,14 +60,16 @@ namespace MQTTnet.Tests
await Task.Delay(1200);
await client.SendAsync(MqttPingReqPacket.Instance, CancellationToken.None);
responsePacket = await client.ReceiveAsync(CancellationToken.None);
Assert.IsTrue(responsePacket is MqttPingRespPacket);
// Now we will wait longer than 1.5 so that the server will close the connection.
responsePacket = await client.ReceiveAsync(CancellationToken.None);
await Task.Delay(3000);
var disconnectPacket = responsePacket as MqttDisconnectPacket;
await server.StopAsync();
await client.ReceiveAsync(CancellationToken.None);
Assert.IsTrue(disconnectPacket != null);
Assert.AreEqual(disconnectPacket.ReasonCode, MqttDisconnectReasonCode.KeepAliveTimeout);
}
}
}