public void HasParentDecorator_root_has_no_parent()
{
// ACT
var rootTraverser = new HasParentDecorator <MockableNode>(Mock.Of <MockableNode>());
// ASSERT
Assert.False(rootTraverser.HasParentNode);
}
public void HasParentDecorator_root_returns_childnodes()
{
// ARRANGE
// root has a child node
var node = Mock.Of <MockableNode>();
var child = Mock.Of <MockableNode>();
Mock.Get(node).Setup(n => n.HasChildNodes).Returns(true);
Mock.Get(node).Setup(n => n.ChildNodes).Returns(new[] { child });
var traverser = new HasParentDecorator <MockableNode>(node);
// ACT
var result = traverser.Children().Single().Node;
// ASSERT
Assert.True(traverser.HasChildNodes);
Assert.Same(child, result);
}
public void HasParentDecorator_has_parent_for_childnode()
{
// ARRANGE
// root has a child node
var node = Mock.Of <MockableNode>();
var child = Mock.Of <MockableNode>();
Mock.Get(node).Setup(n => n.HasChildNodes).Returns(true);
Mock.Get(node).Setup(n => n.ChildNodes).Returns(new[] { child });
var traverser = new HasParentDecorator <MockableNode>(node);
// ACT
// fetch parent fro single child
var result = traverser.Children().Single().Parent().Node;
// ASSERT
// parent is accessible from the decorated child
Assert.True(traverser.Children().Single().HasParentNode);
Assert.Same(node, result);
}
