EntityFrameworkでConcurrencyCheckを使用した楽観的排他制御とそのリカバリロジックを書いた場合に単体テストを行う方法が分からなかったので考えてみた。 例えばこんなEntityとContextを作成した場合 /// <summary> /// 在庫データ /// </summary> public class ProductStock { public long Id { get; set; } /// <summary> /// 仕入れ数 /// </summary> [ConcurrencyCheck] public int PurchaseQuantity { get; set; } /// <summary> /// 販売済み数 /// </summary> [ConcurrencyCheck] public int SoldQuantity { get;
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