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test: lock SubList remote-key and match behavior

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This commit is contained in:
Joseph Doherty
2026-03-13 09:49:54 -04:00
parent 0be321fa53
commit 08bd34c529
3 changed files with 92 additions and 0 deletions
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27
tests/NATS.Server.Core.Tests/Subscriptions/SubListGoParityTests.cs
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@@ -199,6 +199,33 @@ public class SubListGoParityTests
sl.Match("foo.bar").PlainSubs.Length.ShouldBe(3);
}
[Fact]
public void Cache_generation_bump_rebuilds_match_result_after_insert_and_remove()
{
var sl = new SubList();
var exact = MakeSub("foo.bar", sid: "1");
var wildcard = MakeSub("foo.*", sid: "2");
sl.Insert(exact);
var first = sl.Match("foo.bar");
var second = sl.Match("foo.bar");
ReferenceEquals(first, second).ShouldBeTrue();
first.PlainSubs.Select(sub => sub.Sid).ShouldBe(["1"]);
sl.Insert(wildcard);
var afterInsert = sl.Match("foo.bar");
ReferenceEquals(afterInsert, first).ShouldBeFalse();
afterInsert.PlainSubs.Select(sub => sub.Sid).OrderBy(x => x).ToArray().ShouldBe(["1", "2"]);
sl.Remove(wildcard);
var afterRemove = sl.Match("foo.bar");
ReferenceEquals(afterRemove, afterInsert).ShouldBeFalse();
afterRemove.PlainSubs.Select(sub => sub.Sid).ShouldBe(["1"]);
}
/// <summary>
/// Empty result is a shared singleton — two calls that yield no matches return
/// the same object reference.