public void LockTransitionsToAwaitingRetryDataFileWhenOperationFails()
        {
            var servantMock = new Mock <DataFileServant>();

            DataFileServant.Instance = servantMock.Object;

            const string filePath        = "201306158F341A2D6FD7416B87073A0132DD51AE.chk.20150627111406.gathered";
            var          sut             = new GatheredDataFile(filePath);
            var          messageBodyMock = new Mock <MessageBody>(sut);

            messageBodyMock.SetupAllProperties();

            servantMock.Setup(s => s.TryMoveFile(filePath, It.IsAny <string>())).Returns(false);

            sut.Lock(messageBodyMock.Object);

            messageBodyMock.Object.DataFile.Should().BeOfType <AwaitingRetryDataFile>();
        }
        public void LockTransitionsToNewGatheredDataFileWhenOperationSucceeds()
        {
            var servantMock = new Mock <DataFileServant>();

            DataFileServant.Instance = servantMock.Object;

            const string filePath        = "201306158F341A2D6FD7416B87073A0132DD51AE.chk.20150627111406.gathered";
            var          sut             = new GatheredDataFile(filePath);
            var          messageBodyMock = new Mock <MessageBody>(sut);

            messageBodyMock.SetupAllProperties();

            servantMock.Setup(s => s.TryMoveFile(filePath, It.IsAny <string>())).Returns(true);

            sut.Lock(messageBodyMock.Object);

            messageBodyMock.Object.DataFile.Should().BeOfType <GatheredDataFile>();
            messageBodyMock.Object.DataFile.Should().NotBeSameAs(sut);
            (sut.Path.Tokenize().LockTime < messageBodyMock.Object.DataFile.Path.Tokenize().LockTime).Should().BeTrue();
        }