From 0f13c7d36875e04ace93c15beedecc66f340f1d3 Mon Sep 17 00:00:00 2001
From: Meta Vens <rwvens@hotmail.com>
Date: Fri, 2 Oct 2026 20:09:17 +0200
Subject: [PATCH] C#: the unreadable-format refusal names every format the
 runtime reads, v3 included

A mutation survivor on the merge's refusal text: dropping v3 from the list passed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---
 tests/GameCult.Caching.Tests/PreCut2StoreFormatTests.cs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tests/GameCult.Caching.Tests/PreCut2StoreFormatTests.cs b/tests/GameCult.Caching.Tests/PreCut2StoreFormatTests.cs
index 90e7b1e7..cee4fc2e 100644
--- a/tests/GameCult.Caching.Tests/PreCut2StoreFormatTests.cs
+++ b/tests/GameCult.Caching.Tests/PreCut2StoreFormatTests.cs
@@ -222,6 +222,7 @@ namespace GameCult.Caching.Tests
         {
             var snapshot = new CultPersistedStoreSnapshot { FormatVersion = header };
             var error = Assert.Throws<CultStoreUnreadableException>(() => CultDocumentMessagePackSerialization.RequireSingleFileFormat(snapshot))!;
+            Assert.That(error.Message, Does.Contain($"this runtime reads {CultPersistedStoreSnapshot.FormatV1}, {CultPersistedStoreSnapshot.FormatV2} and {CultPersistedStoreSnapshot.FormatV3}."));
             if (echoed)
             {
                 Assert.That(error.Message, Does.Contain("format " + header + " is not"));