public void GetFileById()
        {
            var mock = new Mock <IFileDao>();

            mock.Setup(item => item.GetFileById(1)).Returns(new Files());

            var logic = new FileLogic(mock.Object);

            Assert.IsInstanceOfType(logic.GetFileById(1), typeof(Files));
        }
        public void UpdateText()
        {
            var mock = new Mock <IFileDao>();

            mock.Setup(item => item.UpdateText(1, "qwe")).Returns(100);

            var logic = new FileLogic(mock.Object);

            Assert.IsNotNull(logic.GetFileById(2));

            Assert.IsFalse(logic.UpdateMark("1", "3"));
        }