public void SentenceTaskRepositoryTest_SentenceTasks_getTasks_nullException()
{
try
{
rep.GetTasks(null);
}
catch (Exception e)
{
Assert.AreEqual("Value cannot be null.", e.Message, string.Format("result != expected"));
}
}
public SentenceTask GetTask(string category, string indexes)
{
var ParsedIndexes = new List <int>();
List <SentenceTask> tasks;
var rand = new Random();
if (!String.IsNullOrEmpty(indexes))
{
foreach (var ch in indexes.Split(','))
{
if (int.TryParse(ch, out int i))
{
ParsedIndexes.Add(i);
}
}
}
if (String.IsNullOrEmpty(category))
{
throw new Exception("Invalid model");
}
if (!ParsedIndexes.IsCorrect())
{
throw new Exception("End of tasks");
}
tasks = rep.GetTasks(category, ParsedIndexes).ToList();
if (tasks == null)
{
throw new Exception("Has no tasks");
}
if (tasks.Count() == 0)
{
throw new Exception("Has no tasks");
}
var index = rand.Next(0, tasks.Count());
return(tasks.Select(x =>
{
var arr = x.Sentence.Split(new[] { ' ' });
var set = new HashSet <int>();
while (set.Count() != arr.Length)
{
set.Add(rand.Next(0, arr.Length));
}
var returnArr = new string[arr.Length];
var i = 0;
foreach (var ind in set)
{
returnArr[i] = arr[ind];
i++;
}
return new SentenceTask {
SentenceTaskId = x.SentenceTaskId, Sentence = string.Join(" ", returnArr), Category = x.Category, Translate = x.Translate
};
}).ElementAt(index));
}