More work on SeqBackgroundService, next step is tests for it.

Tests/MessageChannelIntegrationTests.cs

@@ -1,70 +0,0 @@
-using Autofac;
-using System.Data;
-using Insight.Database;
-using Microsoft.VisualStudio.TestTools.UnitTesting;
-using Microsoft.Extensions.Logging;
-using Core.Telemetry;
-using Microsoft.ApplicationInsights;
-using Microsoft.ApplicationInsights.Channel;
-using Microsoft.ApplicationInsights.DataContracts;
-
-namespace Tests
-{
-    [TestClass]
-    public class MessageChannelIntegrationTests : TestFixture
-    {
-        private IMessageChannel<ITelemetry> _messageChannel;
-        private SeqBackgroundService _service;
-        private CancellationTokenSource _cts;
-
-        [TestInitialize]
-        public void SetupThis()
-        {
-            _messageChannel = new MessageChannel();
-            var telemetryClient = Container.Resolve<TelemetryClient>();
-            var httpClient = new HttpClient(new TestMessageHandler());
-            _service = new SeqBackgroundService(telemetryClient, _messageChannel, httpClient);
-            _cts = new CancellationTokenSource();
-		}
-
-        [TestMethod]
-        public async Task Messages_ShouldBeProcessedFromQueue()
-        {
-            var processedMessages = new List<HttpRequestMessage>();
-
-            var serviceTask = _service.StartAsync(_cts.Token);
-
-            for (int i = 0; i < 5; i++)
-            {
-                var eventTelemetry = new EventTelemetry("SomeEvent");
-                await _messageChannel.Writer.WriteAsync(eventTelemetry);
-            }
-
-            // wait for processing
-            await Task.Delay(5000);
-
-            _cts.Cancel();
-            await _service.StopAsync(CancellationToken.None);
-
-
-            bool hasMoreMessages = await _messageChannel.Reader.WaitToReadAsync();
-            Assert.IsFalse(hasMoreMessages, "Queue should be empty after 5 seconds");
-        }
-
-        private class TestMessageHandler : HttpMessageHandler
-        {
-            protected override Task<HttpResponseMessage> SendAsync(
-                HttpRequestMessage request,
-                CancellationToken cancellationToken)
-            {
-                return Task.FromResult(new HttpResponseMessage(System.Net.HttpStatusCode.OK));
-            }
-        }
-
-        [TestCleanup]
-        public void Cleanup()
-        {
-            _cts?.Dispose();
-        }
-    }
-}