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https://github.com/dotnet/MQTTnet.git
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Use latest language features (#2176)
* Make use of language features line AsyncDispose, init etc. * Fix build errors * Improve Unit Tests * Improve Unit Tests * Improve Unit Tests * Update samples * Remove obsolete benchmarks * Code cleanup * Improve unit tests * Improve Unit Tests * Fix Unit Tests * Improve Unit Tests * Improve Unit Tests * Restore unit tests * Exclude load tests from unit tests
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Christian
@@ -14,207 +14,194 @@ using MQTTnet.Packets;
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using MQTTnet.Protocol;
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using MQTTnet.Server;
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namespace MQTTnet.Tests.Clients.LowLevelMqttClient
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namespace MQTTnet.Tests.Clients.LowLevelMqttClient;
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// ReSharper disable InconsistentNaming
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[TestClass]
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public sealed class LowLevelMqttClient_Tests : BaseTestClass
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{
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[TestClass]
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public sealed class LowLevelMqttClient_Tests : BaseTestClass
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[TestMethod]
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public async Task Authenticate()
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{
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[TestMethod]
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public async Task Authenticate()
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using var testEnvironment = CreateTestEnvironment();
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await testEnvironment.StartServer();
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var factory = new MqttClientFactory();
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var lowLevelClient = factory.CreateLowLevelMqttClient();
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await lowLevelClient.ConnectAsync(new MqttClientOptionsBuilder().WithTcpServer("127.0.0.1", testEnvironment.ServerPort).Build(), CancellationToken.None);
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var receivedPacket = await Authenticate(lowLevelClient).ConfigureAwait(false);
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await lowLevelClient.DisconnectAsync(CancellationToken.None).ConfigureAwait(false);
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Assert.IsNotNull(receivedPacket);
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Assert.AreEqual(MqttConnectReturnCode.ConnectionAccepted, receivedPacket.ReturnCode);
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}
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[TestMethod]
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public async Task Connect_And_Disconnect()
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{
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using var testEnvironment = CreateTestEnvironment();
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await testEnvironment.StartServer();
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var lowLevelClient = testEnvironment.ClientFactory.CreateLowLevelMqttClient();
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await lowLevelClient.ConnectAsync(new MqttClientOptionsBuilder().WithTcpServer("127.0.0.1", testEnvironment.ServerPort).Build(), CancellationToken.None);
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await lowLevelClient.DisconnectAsync(CancellationToken.None);
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}
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[TestMethod]
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[ExpectedException(typeof(MqttCommunicationException))]
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public async Task Connect_To_Not_Existing_Broker()
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{
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var client = new MqttClientFactory().CreateLowLevelMqttClient();
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var options = new MqttClientOptionsBuilder().WithTcpServer("localhost").Build();
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await client.ConnectAsync(options, CancellationToken.None).ConfigureAwait(false);
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}
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[TestMethod]
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[ExpectedException(typeof(MqttCommunicationException))]
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public async Task Connect_To_Wrong_Host()
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{
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var client = new MqttClientFactory().CreateLowLevelMqttClient();
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var options = new MqttClientOptionsBuilder().WithTcpServer("123.456.789.10").Build();
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await client.ConnectAsync(options, CancellationToken.None).ConfigureAwait(false);
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}
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[TestMethod]
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public async Task Loose_Connection()
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{
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using var testEnvironment = CreateTestEnvironment();
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testEnvironment.IgnoreServerLogErrors = true;
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testEnvironment.ServerPort = 8364;
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var server = await testEnvironment.StartServer();
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var client = await testEnvironment.ConnectLowLevelClient(o => o.WithTimeout(TimeSpan.Zero));
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await Authenticate(client).ConfigureAwait(false);
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await server.StopAsync();
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await Task.Delay(2000);
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try
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{
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using (var testEnvironment = CreateTestEnvironment())
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{
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await testEnvironment.StartServer();
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var factory = new MqttClientFactory();
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var lowLevelClient = factory.CreateLowLevelMqttClient();
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await lowLevelClient.ConnectAsync(new MqttClientOptionsBuilder().WithTcpServer("127.0.0.1", testEnvironment.ServerPort).Build(), CancellationToken.None);
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var receivedPacket = await Authenticate(lowLevelClient).ConfigureAwait(false);
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await lowLevelClient.DisconnectAsync(CancellationToken.None).ConfigureAwait(false);
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Assert.IsNotNull(receivedPacket);
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Assert.AreEqual(MqttConnectReturnCode.ConnectionAccepted, receivedPacket.ReturnCode);
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}
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await client.SendAsync(MqttPingReqPacket.Instance, CancellationToken.None).ConfigureAwait(false);
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await Task.Delay(2000);
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await client.SendAsync(MqttPingReqPacket.Instance, CancellationToken.None).ConfigureAwait(false);
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}
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catch (MqttCommunicationException exception)
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{
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Assert.IsTrue(exception.InnerException is SocketException);
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return;
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}
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catch
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{
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Assert.Fail("Wrong exception type thrown.");
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}
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[TestMethod]
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public async Task Connect_And_Disconnect()
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Assert.Fail("This MUST fail");
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}
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[TestMethod]
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public async Task Maintain_IsConnected_Property()
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{
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using var testEnvironment = CreateTestEnvironment();
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testEnvironment.IgnoreServerLogErrors = true;
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var server = await testEnvironment.StartServer();
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using var lowLevelClient = testEnvironment.CreateLowLevelClient();
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Assert.IsFalse(lowLevelClient.IsConnected);
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var clientOptions = new MqttClientOptionsBuilder().WithTcpServer("127.0.0.1", testEnvironment.ServerPort).WithTimeout(TimeSpan.FromSeconds(1)).Build();
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await lowLevelClient.ConnectAsync(clientOptions, CancellationToken.None);
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Assert.IsTrue(lowLevelClient.IsConnected);
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await server.StopAsync();
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server.Dispose();
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await LongTestDelay();
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Assert.IsTrue(lowLevelClient.IsConnected);
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try
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{
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using (var testEnvironment = CreateTestEnvironment())
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{
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await testEnvironment.StartServer();
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using var timeout = new CancellationTokenSource(TimeSpan.FromSeconds(5));
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await lowLevelClient.SendAsync(MqttPingReqPacket.Instance, CancellationToken.None);
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await LongTestDelay();
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var lowLevelClient = testEnvironment.ClientFactory.CreateLowLevelMqttClient();
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await lowLevelClient.ConnectAsync(new MqttClientOptionsBuilder().WithTcpServer("127.0.0.1", testEnvironment.ServerPort).Build(), CancellationToken.None);
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await lowLevelClient.DisconnectAsync(CancellationToken.None);
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}
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await lowLevelClient.ReceiveAsync(timeout.Token);
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}
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catch
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{
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// The connection is now closed!
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}
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[TestMethod]
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[ExpectedException(typeof(MqttCommunicationException))]
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public async Task Connect_To_Not_Existing_Broker()
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{
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var client = new MqttClientFactory().CreateLowLevelMqttClient();
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var options = new MqttClientOptionsBuilder().WithTcpServer("localhost").Build();
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Assert.IsFalse(lowLevelClient.IsConnected);
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}
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await client.ConnectAsync(options, CancellationToken.None).ConfigureAwait(false);
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}
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[TestMethod]
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public async Task Subscribe()
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{
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using var testEnvironment = CreateTestEnvironment();
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await testEnvironment.StartServer();
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[TestMethod]
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[ExpectedException(typeof(MqttCommunicationException))]
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public async Task Connect_To_Wrong_Host()
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{
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var client = new MqttClientFactory().CreateLowLevelMqttClient();
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var options = new MqttClientOptionsBuilder().WithTcpServer("123.456.789.10").Build();
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var factory = new MqttClientFactory();
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var lowLevelClient = factory.CreateLowLevelMqttClient();
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await client.ConnectAsync(options, CancellationToken.None).ConfigureAwait(false);
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}
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await lowLevelClient.ConnectAsync(new MqttClientOptionsBuilder().WithTcpServer("127.0.0.1", testEnvironment.ServerPort).Build(), CancellationToken.None);
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[TestMethod]
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public async Task Loose_Connection()
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{
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using (var testEnvironment = CreateTestEnvironment())
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{
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testEnvironment.IgnoreServerLogErrors = true;
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await Authenticate(lowLevelClient).ConfigureAwait(false);
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testEnvironment.ServerPort = 8364;
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var server = await testEnvironment.StartServer();
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var receivedPacket = await Subscribe(lowLevelClient, "a").ConfigureAwait(false);
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var client = await testEnvironment.ConnectLowLevelClient(o => o.WithTimeout(TimeSpan.Zero));
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await lowLevelClient.DisconnectAsync(CancellationToken.None).ConfigureAwait(false);
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await Authenticate(client).ConfigureAwait(false);
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Assert.IsNotNull(receivedPacket);
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Assert.AreEqual(MqttSubscribeReasonCode.GrantedQoS0, receivedPacket.ReasonCodes[0]);
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}
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await server.StopAsync();
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await Task.Delay(2000);
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try
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async Task<MqttConnAckPacket> Authenticate(ILowLevelMqttClient client)
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{
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await client.SendAsync(
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new MqttConnectPacket
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{
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await client.SendAsync(MqttPingReqPacket.Instance, CancellationToken.None).ConfigureAwait(false);
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await Task.Delay(2000);
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await client.SendAsync(MqttPingReqPacket.Instance, CancellationToken.None).ConfigureAwait(false);
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}
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catch (MqttCommunicationException exception)
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CleanSession = true,
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ClientId = TestContext.TestName,
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Username = "user",
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Password = Encoding.UTF8.GetBytes("pass")
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},
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CancellationToken.None)
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.ConfigureAwait(false);
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return await client.ReceiveAsync(CancellationToken.None).ConfigureAwait(false) as MqttConnAckPacket;
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}
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async Task<MqttSubAckPacket> Subscribe(ILowLevelMqttClient client, string topic)
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{
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await client.SendAsync(
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new MqttSubscribePacket
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{
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Assert.IsTrue(exception.InnerException is SocketException);
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return;
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}
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catch
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{
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Assert.Fail("Wrong exception type thrown.");
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}
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Assert.Fail("This MUST fail");
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}
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}
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[TestMethod]
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public async Task Maintain_IsConnected_Property()
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{
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using (var testEnvironment = CreateTestEnvironment())
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{
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testEnvironment.IgnoreServerLogErrors = true;
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var server = await testEnvironment.StartServer();
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using (var lowLevelClient = testEnvironment.CreateLowLevelClient())
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{
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Assert.IsFalse(lowLevelClient.IsConnected);
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var clientOptions = new MqttClientOptionsBuilder().WithTcpServer("127.0.0.1", testEnvironment.ServerPort).WithTimeout(TimeSpan.FromSeconds(1)).Build();
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await lowLevelClient.ConnectAsync(clientOptions, CancellationToken.None);
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Assert.IsTrue(lowLevelClient.IsConnected);
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await server.StopAsync();
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server.Dispose();
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await LongTestDelay();
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Assert.IsTrue(lowLevelClient.IsConnected);
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try
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PacketIdentifier = 1,
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TopicFilters =
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{
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using (var timeout = new CancellationTokenSource(TimeSpan.FromSeconds(5)))
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new MqttTopicFilter
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{
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await lowLevelClient.SendAsync(MqttPingReqPacket.Instance, CancellationToken.None);
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await LongTestDelay();
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await lowLevelClient.ReceiveAsync(timeout.Token);
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Topic = topic
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}
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}
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catch
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{
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}
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},
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CancellationToken.None)
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.ConfigureAwait(false);
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Assert.IsFalse(lowLevelClient.IsConnected);
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}
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}
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}
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[TestMethod]
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public async Task Subscribe()
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{
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using (var testEnvironment = CreateTestEnvironment())
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{
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await testEnvironment.StartServer();
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var factory = new MqttClientFactory();
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var lowLevelClient = factory.CreateLowLevelMqttClient();
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await lowLevelClient.ConnectAsync(new MqttClientOptionsBuilder().WithTcpServer("127.0.0.1", testEnvironment.ServerPort).Build(), CancellationToken.None);
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await Authenticate(lowLevelClient).ConfigureAwait(false);
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var receivedPacket = await Subscribe(lowLevelClient, "a").ConfigureAwait(false);
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await lowLevelClient.DisconnectAsync(CancellationToken.None).ConfigureAwait(false);
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Assert.IsNotNull(receivedPacket);
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Assert.AreEqual(MqttSubscribeReasonCode.GrantedQoS0, receivedPacket.ReasonCodes[0]);
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}
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}
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async Task<MqttConnAckPacket> Authenticate(ILowLevelMqttClient client)
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{
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await client.SendAsync(
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new MqttConnectPacket
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{
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CleanSession = true,
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ClientId = TestContext.TestName,
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Username = "user",
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Password = Encoding.UTF8.GetBytes("pass")
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},
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CancellationToken.None)
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.ConfigureAwait(false);
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return await client.ReceiveAsync(CancellationToken.None).ConfigureAwait(false) as MqttConnAckPacket;
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}
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async Task<MqttSubAckPacket> Subscribe(ILowLevelMqttClient client, string topic)
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{
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await client.SendAsync(
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new MqttSubscribePacket
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{
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PacketIdentifier = 1,
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TopicFilters =
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{
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new MqttTopicFilter
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{
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Topic = topic
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}
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}
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},
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CancellationToken.None)
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.ConfigureAwait(false);
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return await client.ReceiveAsync(CancellationToken.None).ConfigureAwait(false) as MqttSubAckPacket;
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}
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return await client.ReceiveAsync(CancellationToken.None).ConfigureAwait(false) as MqttSubAckPacket;
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}
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}
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