test: Make infinite tracing integration test more stable. (#1926)

Author: nrcventura

tests/Agent/IntegrationTests/IntegrationTestHelpers/AgentLogBase.cs

@@ -65,6 +65,7 @@ public abstract class AgentLogBase
 
         // Infinite trace
         public const string SpanStreamingServiceConnectedLogLineRegex = InfoLogLinePrefixRegex + @"SpanStreamingService: gRPC channel to endpoint (.*) connected.(.*)";
+        public const string SpanStreamingServiceStreamConnectedLogLineRegex = FinestLogLinePrefixRegex + @"SpanStreamingService: consumer \d+ - gRPC request stream connected (.*)";
         public const string SpanStreamingSuccessfullySentLogLineRegex = FinestLogLinePrefixRegex + @"SpanStreamingService: consumer \d+ - Attempting to send (\d+) item\(s\) - Success";
         public const string SpanStreamingSuccessfullyProcessedByServerResponseLogLineRegex = FinestLogLinePrefixRegex + @"SpanStreamingService: consumer \d+ - Received gRPC Server response messages: (\d+)";
         public const string SpanStreamingResponseGrpcError = FinestLogLinePrefixRegex + @"ResponseStreamWrapper: consumer \d+ - gRPC RpcException encountered while handling gRPC server responses: (.*)";

tests/Agent/IntegrationTests/IntegrationTests/InfiniteTracing/InfiniteTracingTests.cs

@@ -37,7 +37,7 @@ public InfiniteTracingTestsBase(TFixture fixture, ITestOutputHelper output) : ba
                 exerciseApplication: () =>
                 {
                     // Wait for 8T to connect
-                    _fixture.AgentLog.WaitForLogLine(AgentLogBase.SpanStreamingServiceConnectedLogLineRegex, TimeSpan.FromSeconds(15));
+                    _fixture.AgentLog.WaitForLogLine(AgentLogBase.SpanStreamingServiceStreamConnectedLogLineRegex, TimeSpan.FromSeconds(15));
                     // Now send the command to make the 8T Span
                     _fixture.SendCommand("InfiniteTracingTester Make8TSpan");
                     // Now wait to see that the 8T spans were sent successfully