public void Contains_should_return_true_when_specified_item_exists()
{
LinkedObjectTestDouble dummy = new LinkedObjectTestDouble();
_list.Add(dummy);
Assert.True(_list.Contains(dummy));
}
public void Remove_should_return_true_when_item_removed()
{
LinkedObjectTestDouble dummy = new LinkedObjectTestDouble();
_list.Add(dummy);
Assert.True(_list.Remove(dummy));
}
public void Indexer_get_should_return_correct_object()
{
LinkedObjectTestDouble dummy = new LinkedObjectTestDouble();
_list.Add(dummy);
Assert.Same(dummy, _list[0]);
}
public void Insert_should_set_parent()
{
LinkedObjectTestDouble dummy = new LinkedObjectTestDouble();
_list.Insert(0, dummy);
Assert.Same(_parent, dummy.Parent);
}
public void Remove_should_return_false_when_item_is_not_removed()
{
LinkedObjectTestDouble dummy = new LinkedObjectTestDouble();
_list.Add(dummy);
Assert.False(_list.Remove(new LinkedObjectTestDouble()));
}
public void IndexOf_should_return_correct_index_when_item_does_not_exist()
{
LinkedObjectTestDouble dummy = new LinkedObjectTestDouble();
_list.Add(dummy);
Assert.Equal(-1, _list.IndexOf(new LinkedObjectTestDouble()));
}
public void CopyTo_should_copy_correct_items()
{
_list.AddRange(new[] { new LinkedObjectTestDouble(), new LinkedObjectTestDouble() });
LinkedObjectTestDouble[] array = new LinkedObjectTestDouble[2];
_list.CopyTo(array, 0);
array.Each(item => Assert.True(_list.Contains(item)));
}
public void RemoveAt_should_decrease_the_collection()
{
LinkedObjectTestDouble obj1 = new LinkedObjectTestDouble();
LinkedObjectTestDouble obj2 = new LinkedObjectTestDouble();
LinkedObjectTestDouble obj3 = new LinkedObjectTestDouble();
_list.AddRange(new[] { obj1, obj2, obj3 });
_list.RemoveAt(1);
Assert.Equal(2, _list.Count);
}
public void Index_set_should_set_parent()
{
LinkedObjectTestDouble obj1 = new LinkedObjectTestDouble();
_list.Add(obj1);
LinkedObjectTestDouble obj2 = new LinkedObjectTestDouble();
_list[0] = obj2;
Assert.Same(_parent, obj2.Parent);
}
public void Index_set_should_cleanup_previous_item()
{
LinkedObjectTestDouble obj1 = new LinkedObjectTestDouble();
_list.Add(obj1);
LinkedObjectTestDouble obj2 = new LinkedObjectTestDouble();
_list[0] = obj2;
Assert.Null(obj1.Parent);
Assert.Null(obj1.PreviousSibling);
Assert.Null(obj1.NextSibling);
}
public void RemoveAt_should_cleanup_the_removed_item()
{
LinkedObjectTestDouble obj1 = new LinkedObjectTestDouble();
LinkedObjectTestDouble obj2 = new LinkedObjectTestDouble();
LinkedObjectTestDouble obj3 = new LinkedObjectTestDouble();
_list.AddRange(new[] { obj1, obj2, obj3 });
_list.RemoveAt(1);
Assert.Null(obj2.Parent);
Assert.Null(obj2.PreviousSibling);
Assert.Null(obj2.NextSibling);
}
public void RemoveAt_at_the_begining_should_properly_rebuild_the_chain()
{
LinkedObjectTestDouble obj1 = new LinkedObjectTestDouble();
LinkedObjectTestDouble obj2 = new LinkedObjectTestDouble();
LinkedObjectTestDouble obj3 = new LinkedObjectTestDouble();
_list.AddRange(new[] { obj1, obj2, obj3 });
_list.RemoveAt(0);
Assert.Null(obj2.PreviousSibling);
Assert.Same(obj3, obj2.NextSibling);
Assert.Same(obj2, obj3.PreviousSibling);
Assert.Null(obj3.NextSibling);
}
public void Indexer_set_should_properly_rebuild_the_chain()
{
LinkedObjectTestDouble obj1 = new LinkedObjectTestDouble();
LinkedObjectTestDouble obj2 = new LinkedObjectTestDouble();
LinkedObjectTestDouble obj3 = new LinkedObjectTestDouble();
_list.AddRange(new[] { obj1, obj2, obj3 });
LinkedObjectTestDouble obj = new LinkedObjectTestDouble();
_list[1] = obj;
Assert.Null(obj1.PreviousSibling);
Assert.Same(obj, obj1.NextSibling);
Assert.Same(obj1, obj.PreviousSibling);
Assert.Same(obj3, obj.NextSibling);
Assert.Same(obj, obj3.PreviousSibling);
Assert.Null(obj3.NextSibling);
}
public void Add_should_maintain_proper_chain()
{
LinkedObjectTestDouble obj1 = new LinkedObjectTestDouble();
LinkedObjectTestDouble obj2 = new LinkedObjectTestDouble();
LinkedObjectTestDouble obj3 = new LinkedObjectTestDouble();
LinkedObjectTestDouble obj4 = new LinkedObjectTestDouble();
_list.Add(obj1);
_list.Add(obj2);
_list.Add(obj3);
_list.Add(obj4);
Assert.Null(obj1.PreviousSibling);
Assert.Same(obj2, obj1.NextSibling);
Assert.Same(obj1, obj2.PreviousSibling);
Assert.Same(obj3, obj2.NextSibling);
Assert.Same(obj2, obj3.PreviousSibling);
Assert.Same(obj4, obj3.NextSibling);
Assert.Same(obj3, obj4.PreviousSibling);
Assert.Null(obj4.NextSibling);
}
public void Insert_in_the_middle_should_properly_rebuild_the_chain()
{
LinkedObjectTestDouble obj1 = new LinkedObjectTestDouble();
LinkedObjectTestDouble obj2 = new LinkedObjectTestDouble();
LinkedObjectTestDouble obj3 = new LinkedObjectTestDouble();
_list.AddRange(new[] { obj1, obj2, obj3 });
LinkedObjectTestDouble obj = new LinkedObjectTestDouble();
_list.Insert(1, obj);
Assert.Null(obj1.PreviousSibling);
Assert.Same(obj, obj1.NextSibling);
Assert.Same(obj1, obj.PreviousSibling);
Assert.Same(obj2, obj.NextSibling);
Assert.Same(obj, obj2.PreviousSibling);
Assert.Same(obj3, obj2.NextSibling);
Assert.Same(obj2, obj3.PreviousSibling);
Assert.Null(obj3.NextSibling);
}
public void Indexer_set_should_throw_exception_when_index_is_out_of_range()
{
Assert.Throws <ArgumentOutOfRangeException>(() => _list[1] = new LinkedObjectTestDouble());
}
public LinkedObjectCollectionTests()
{
_parent = new LinkedObjectTestDouble();
_list = new LinkedObjectCollection <LinkedObjectTestDouble>(_parent);
}
