public void AddNewTaskTest()
{
testList.Id = Guid.NewGuid();
var jsonNewList = testList.SerializeJson();
TestHelper.SendPost(TestHelper.REST_SERVICE_START_URL + $"lists/new",
jsonNewList,
out HttpStatusCode statusCode,
out string description);
Assert.AreEqual(201, (int)statusCode);
testTask.Id = Guid.NewGuid();
var jsonNewTask = testTask.SerializeJson();
TestHelper.SendPost(TestHelper.REST_SERVICE_START_URL + $"list/{testList.Id}/tasks",
jsonNewTask,
out HttpStatusCode statusCode1,
out string description1);
Assert.AreEqual(201, (int)statusCode1);
var json = TestHelper.SendGet(TestHelper.REST_SERVICE_START_URL + "list/" + testList.Id);
var result = json.DeserializeJson <ToDoList>();
Assert.IsNotNull(result);
Assert.AreEqual(testList.Id, result.Id);
Assert.IsTrue(result.ToDoTasks.Any(t => t.Id == testTask.Id));
}