public void IntermediateNodeWalker_Visit_TraversesEntireGraph() { // Arrange var walker = new DerivedIntermediateNodeWalker(); var nodes = new IntermediateNode[] { new BasicIntermediateNode("Root"), new BasicIntermediateNode("Root->A"), new BasicIntermediateNode("Root->B"), new BasicIntermediateNode("Root->B->1"), new BasicIntermediateNode("Root->B->2"), new BasicIntermediateNode("Root->C"), }; var builder = new DefaultRazorIntermediateNodeBuilder(); builder.Push(nodes[0]); builder.Add(nodes[1]); builder.Push(nodes[2]); builder.Add(nodes[3]); builder.Add(nodes[4]); builder.Pop(); builder.Add(nodes[5]); var root = builder.Pop(); // Act walker.Visit(root); // Assert Assert.Equal(nodes, walker.Visited.ToArray()); }
public void IntermediateNodeWalker_Visit_SetsParentAndAncestors() { // Arrange var walker = new DerivedIntermediateNodeWalker(); var nodes = new IntermediateNode[] { new BasicIntermediateNode("Root"), new BasicIntermediateNode("Root->A"), new BasicIntermediateNode("Root->B"), new BasicIntermediateNode("Root->B->1"), new BasicIntermediateNode("Root->B->2"), new BasicIntermediateNode("Root->C"), }; var ancestors = new Dictionary <string, string[]>() { { "Root", new string[] { } }, { "Root->A", new string[] { "Root" } }, { "Root->B", new string[] { "Root" } }, { "Root->B->1", new string[] { "Root->B", "Root" } }, { "Root->B->2", new string[] { "Root->B", "Root" } }, { "Root->C", new string[] { "Root" } }, }; walker.OnVisiting = (n) => { Assert.Equal(ancestors[((BasicIntermediateNode)n).Name], walker.Ancestors.Cast <BasicIntermediateNode>().Select(b => b.Name)); Assert.Equal(ancestors[((BasicIntermediateNode)n).Name].FirstOrDefault(), ((BasicIntermediateNode)walker.Parent)?.Name); }; var builder = new DefaultRazorIntermediateNodeBuilder(); builder.Push(nodes[0]); builder.Add(nodes[1]); builder.Push(nodes[2]); builder.Add(nodes[3]); builder.Add(nodes[4]); builder.Pop(); builder.Add(nodes[5]); var root = builder.Pop(); // Act & Assert walker.Visit(root); }
public void Pop_ThrowsWhenEmpty() { // Arrange var builder = new DefaultRazorIntermediateNodeBuilder(); // Act & Assert ExceptionAssert.Throws <InvalidOperationException>( () => builder.Pop(), "The 'Pop' operation is not valid when the builder is empty."); }
public void Pop_SingleNodeDepth_RemovesAndReturnsNode() { // Arrange var builder = new DefaultRazorIntermediateNodeBuilder(); var node = new BasicIntermediateNode(); builder.Push(node); // Act var result = builder.Pop(); // Assert Assert.Same(node, result); Assert.Null(builder.Current); }