public async Task <LessonDto> Lesson_AddLesson_Return_LessonDTO()
{
CreateDefaultDeviceServiceInstance();
var addLesson = _mapper.Map <AddLessonDto>(_fakeTimetable[0]);
var lessonDto = await _timetableService.AddLesson(addLesson, default(CancellationToken));
Assert.NotNull(lessonDto);
return(lessonDto);
}
