BTDBTest.KeyValueDBTest.StartWritingTransactionWorks C# (CSharp) Method

        public void StartWritingTransactionWorks()
        {
            using (var fileCollection = new InMemoryFileCollection())
            using (IKeyValueDB db = new KeyValueDB(fileCollection))
            {
                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));
                }
            }
        }