Additional card content

SVSim.UnitTests/Infrastructure/SqliteFriendlyModelCustomizer.cs

@@ -30,6 +30,34 @@ internal class SqliteFriendlyModelCustomizer : ModelCustomizer
         shortUdidProperty.ValueGenerated = ValueGenerated.Never;
 
         AssignClientSideKeyGenerators(modelBuilder.Model);
+        StripCardCosmeticRewardSeed(modelBuilder.Model);
+    }
+
+    /// <summary>
+    /// CardCosmeticReward rows have an FK to Cards.Id, and the production model HasData-seeds
+    /// 1068 rows from card_cosmetic_rewards.csv (chunk A.2). In production those rows have
+    /// matching cards inserted by the CardImporter before runtime. The unit-test factory uses
+    /// SQLite + EnsureCreated + a minimal 3-card seed — most of the cosmetic-reward rows have
+    /// no matching Cards row, and EnsureCreated's FK-deferred batch insert throws SqliteException
+    /// "FOREIGN KEY constraint failed" at host construction time. Strip the seed in tests; the
+    /// test fixture inserts CardCosmeticReward rows ad-hoc when a specific scenario needs them.
+    ///
+    /// HasData seed is stored in the internal EntityType._data field (no public API). Clear it
+    /// via reflection. The clear runs after base.Customize so the HasData call inside Seed()
+    /// has populated the list before we wipe it.
+    /// </summary>
+    private static void StripCardCosmeticRewardSeed(IMutableModel model)
+    {
+        var entityType = model.FindEntityType(typeof(CardCosmeticReward));
+        if (entityType is null) return;
+
+        // EntityType._data is a List<IDictionary<string, object>>? — null when empty.
+        var dataField = entityType.GetType().GetField(
+            "_data",
+            System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
+        if (dataField is null) return;
+        var list = dataField.GetValue(entityType) as System.Collections.IList;
+        list?.Clear();
     }
 
     /// <summary>