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Caching tests: a directory re-read refreshes a record another writer rewrote under another schema

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The directory store's pull filter compares the persisted schema id too; without a same-storedAt rewrite on that store nothing pinned it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Meta Vens 2026-10-21 21:06:29 +02:00
commit bc3407d017
1 changed files with 10 additions and 5 deletions
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15
tests/GameCult.Caching.Tests/ConditionalCommitTests.cs
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@ -97,14 +97,19 @@ namespace GameCult.Caching.Tests
Assert.That(DriftCommit(cache, observed, 2), Is.False, "a record rewritten under another schema passed Expect on storedAt alone");
}
[Test]
public void AnotherWritersNormalisingFlushFailsExpectUntilReRead()
// The directory store rewrites only what is pushed to it, so the other writer pushes the record it read unchanged.
[TestCase(false)]
[TestCase(true)]
public void AnotherWritersNormalisingFlushFailsExpectUntilReRead(bool directory)
{
SeedDrift(directory: false);
using var cache = Drift(false, NarrowDrift).Open();
SeedDrift(directory);
using var cache = Drift(directory, NarrowDrift).Open();
var observed = cache.Get(DriftKey)!;
using (var other = Drift(false, NarrowDrift).Open())
using (var other = Drift(directory, NarrowDrift).Open())
{
other.BackingStores[0].Push(other.GetStored(DriftKey)!);
other.BackingStores[0].PushAll();
}
Assert.That(DriftCommit(cache, observed, 2), Is.False, "Expect held across a rewrite under a schema id this cache did not read");
cache.BackingStores[0].PullAll();