test: deterministic CI-flake fixes (FOCAS alarm resubscribe, Modbus dead-port connect, S7 array poll)

Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
2026-10-08 21:37:51 -04:00
parent e7dd742541
commit f594b29a7a
3 changed files with 18 additions and 3 deletions
@@ -25,7 +25,7 @@ public sealed class ModbusSocketLifecycleTests
    [Fact]
    public async Task Connect_to_dead_port_surfaces_socket_failure()
    {
-        var life = new ModbusSocketLifecycle("127.0.0.1", 1, TimeSpan.FromMilliseconds(300),
+        var life = new ModbusSocketLifecycle("127.0.0.1", 1, TimeSpan.FromSeconds(30), // loopback RST is immediate; a tight timeout races it under load
            autoReconnect: false);
        await Should.ThrowAsync<System.Net.Sockets.SocketException>(
            life.ConnectAsync(TestContext.Current.CancellationToken));