public void FindUnassigned_FindOnlyOne_Arraysize1()
{
//arrange
int personId = PersonSequencer.getNext();
string firstName = "Fredrik";
string familyName = "Persson";
Person assignee = new Person(personId, firstName, familyName);
personId = PersonSequencer.getNext();
Person assignee2 = new Person(personId, "Clara", familyName);
string description1 = "Walk the dog.";
string description2 = "Cuddle with cat.";
string description3 = "Take a walk.";
ToDoSequencer.Reset();
ToDoItems todoItems = new ToDoItems();
todoItems.Clear();
//add 3 items
todoItems.AddToDoItem(assignee, description1);
todoItems.AddToDoItem(assignee2, description2);
todoItems.AddToDoItem(null, description3);
//act
ToDo[] foundItemsArray = todoItems.FindUnassignedTodoItems();
//assert
Assert.Single(foundItemsArray);
Assert.Equal(description3, foundItemsArray[0].Description);
}