Files
wwtools/mbproxy/tests/Mbproxy.Tests/Diagnostics/EventLogMessageTests.cs
T
Joseph Doherty b330faff03 mbproxy: cross-platform support — Linux/systemd alongside Windows
Make the service build, run, and install on Linux as a first-class
target while keeping the Windows Service + Event Log behaviour intact.

- Build: drop the hardcoded win-x64 RID — single-file publish now works
  for any RID. publish.ps1 gains -Rid; new publish.sh for Linux hosts.
- Diagnostics: DiagnosticSinkSelector picks the Error+ sink per host —
  Windows Event Log under the SCM, local syslog under systemd
  (Serilog.Sinks.SyslogMessages), none for interactive runs. The
  EventLog truncation helper is extracted so it is testable cross-OS.
- Host: Program.cs registers AddSystemd() alongside AddWindowsService().
- Config: a RID-conditioned appsettings template ships Windows or Unix
  paths; both templates are schema-validated by a test.
- Install: systemd unit (Type=exec) plus install.sh / uninstall.sh.
  Also fixes two cross-platform bugs found while testing: install.ps1
  and uninstall.ps1 used New-EventLog / Remove-EventLog (absent in
  PowerShell 7), and the E2E sim launcher hardcoded Windows venv paths.
- Docs updated across README, CLAUDE.md, and docs/ for dual-platform.

413 tests pass on Windows; 374 (all non-simulator) on Linux.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-15 09:41:59 -04:00

42 lines
1.4 KiB
C#

using Mbproxy.Diagnostics;
using Shouldly;
using Xunit;
namespace Mbproxy.Tests.Diagnostics;
/// <summary>
/// Unit tests for <see cref="EventLogMessage.TruncateToLimit"/> — the 32 KB Windows
/// Event Log truncation rule. The helper is pure and OS-agnostic, so these run on
/// every platform (the Windows-only <see cref="EventLogBridge"/> sink itself is not
/// exercised here).
/// </summary>
[Trait("Category", "Unit")]
public sealed class EventLogMessageTests
{
[Fact]
public void TruncateToLimit_ShortMessage_ReturnedUnchanged()
{
const string msg = "mbproxy backend connect failed";
EventLogMessage.TruncateToLimit(msg).ShouldBeSameAs(msg);
}
[Fact]
public void TruncateToLimit_MessageAtTheLimit_NotTruncated()
{
// MaxBytes / 2 chars = exactly MaxBytes at the 2-bytes-per-char upper bound.
var atLimit = new string('y', EventLogMessage.MaxBytes / 2);
EventLogMessage.TruncateToLimit(atLimit).ShouldBe(atLimit);
}
[Fact]
public void TruncateToLimit_OversizeMessage_TruncatedWithinLimit_AndEndsWithEllipsis()
{
var huge = new string('x', EventLogMessage.MaxBytes); // well over the limit
var result = EventLogMessage.TruncateToLimit(huge);
(result.Length * 2).ShouldBeLessThanOrEqualTo(EventLogMessage.MaxBytes);
result.ShouldEndWith("...");
result.Length.ShouldBeLessThan(huge.Length);
}
}