public async Task Load_TimeTesting_FewLines_End()
        {
            // Arrange
            LogLoader logDataLoader = new LogLoader(logDataParser, @"C:\Projekty\LoggingSW\vzorová data\bak550\7_5_2020");
            // Act
            var data = await logDataLoader.LoadAsyncOld(DateTime.Parse("18.5.2020 13:38:31"), DateTime.Parse("18.5.2020 13:38:33"));

            // Assert
        }
        public async Task Load_Test(DateTime pocatek, DateTime konec, int expectedLength)
        {
            // Arange
            LogLoader logDataLoader = new LogLoader(logDataParser, VZOROVA_CESTA);
            // Act
            var data = await logDataLoader.LoadAsyncOld(pocatek, konec);

            int actualLength = data.Count();

            // Assert
            Assert.Equal(expectedLength, actualLength);
        }