public void GetEnumerator_WithChildren_EnumeratesChildren()
{
// Arrange
var nodeDirectory = new Directory();
var child1 = new File()
{
Name = "Child_1"
};
var child2 = new File()
{
Name = "Child_2"
};
var child3 = new File()
{
Name = "Child_3"
};
nodeDirectory.AddChild(child1);
nodeDirectory.AddChild(child2);
nodeDirectory.AddChild(child3);
// Act
var enumerator = nodeDirectory.AsEnumerable();
// Assert
CollectionAssert.AreEqual(new[] { child1, child2, child3 }, enumerator);
}