BTDBTest.InMemoryInMemoryKeyValueDBTest.StartWritingTransactionWorks C# (CSharp) Méthode

        public void StartWritingTransactionWorks()
        {
            using (IKeyValueDB db = new InMemoryKeyValueDB())
            {
                var tr1 = db.StartWritingTransaction().Result;
                var tr2Task = db.StartWritingTransaction();
                var task = Task.Factory.StartNew(() =>
                    {
                        var tr2 = tr2Task.Result;
                        Assert.True(tr2.FindExactKey(_key1));
                        tr2.CreateKey(_key2);
                        tr2.Commit();
                        tr2.Dispose();
                    });
                tr1.CreateKey(_key1);
                tr1.Commit();
                tr1.Dispose();
                task.Wait(1000);
                using (var tr = db.StartTransaction())
                {
                    Assert.True(tr.FindExactKey(_key1));
                    Assert.True(tr.FindExactKey(_key2));
                }
            }
        }