public void HtmlAttributeCollectionConstructorTest()
{
HtmlElement element = new HtmlElement("root");
HtmlAttributeCollection target = new HtmlAttributeCollection(element);
StringAssert.Equals(target.HtmlElement.Name, "root");
}
public void IsExplicitlyTerminatedTest()
{
string name = "root";
HtmlElement target = new HtmlElement(name);
target.IsExplicitlyTerminated = true;
Assert.IsTrue(target.IsExplicitlyTerminated);
}
public void HtmlElementConstructorTest()
{
string name = "root";
HtmlElement target = new HtmlElement(name);
StringAssert.Equals(target.Name, name);
Assert.IsNotNull(target.Nodes);
Assert.IsNotNull(target.Attributes);
}
public void AddTest()
{
HtmlElement root = new HtmlElement("root");
HtmlNodeCollection target = new HtmlNodeCollection(root);
HtmlElement child = new HtmlElement("child");
int index = target.Add(child);
Assert.AreEqual(root, child.Parent);
Assert.AreEqual(index, 0);
target.Add(null);
}
public void GetCommonAncestorTest()
{
HtmlNode target = CreateTreeStructure();
HtmlNode child1 = target.FirstChild.FirstChild;
HtmlNode child2 = target.LastChild.LastChild;
HtmlNode actual = child1.GetCommonAncestor(child2);
Assert.AreEqual(target, actual);
HtmlElement element = new HtmlElement("NoCommonAncestor");
actual = child2.GetCommonAncestor(element);
Assert.IsNull(actual);
}
public void FindByAttributeNameTest()
{
HtmlElement root = new HtmlElement("root");
HtmlNodeCollection target = new HtmlNodeCollection(root);
target.Add(new HtmlElement("first"));
target.Add(new HtmlElement("second"));
target.Add(new HtmlElement("third"));
((HtmlElement)target[0]).Nodes.Add(new HtmlElement("secondchild"));
((HtmlElement)target[1]).Attributes.Add(new HtmlAttribute("firstattribute"));
((HtmlElement)target[1]).Attributes.Add(new HtmlAttribute("secondattribute"));
((HtmlElement)target[2]).Attributes.Add(new HtmlAttribute("firstattribute"));
Assert.AreEqual(target.FindByAttributeName("firstattribute").Count, 2);
((HtmlElement)((HtmlElement)target[0]).Nodes[0]).Attributes.Add(new HtmlAttribute("firstattribute"));
Assert.AreEqual(target.FindByAttributeName("firstattribute", false).Count, 2);
Assert.AreEqual(target.FindByAttributeName("firstattribute", true).Count, 3);
}
public void ItemByNameTest()
{
HtmlElement root = new HtmlElement("root");
HtmlNodeCollection target = new HtmlNodeCollection(root);
target.Add(new HtmlElement("first"));
target.Add(new HtmlElement("second"));
target.Add(new HtmlElement("second"));
Assert.IsNotNull(target["second"]);
Assert.IsNull(target["anyname"]);
}
public void ItemByIndexTest()
{
HtmlElement root = new HtmlElement("root");
HtmlNodeCollection target = new HtmlNodeCollection(root);
target.Add(new HtmlElement("first"));
target.Add(new HtmlElement("second"));
target.Add(new HtmlElement("third"));
Assert.AreEqual(target[1], target["second"]);
target[2] = new HtmlElement("another");
target[0] = null;
StringAssert.Contains(target[2].ToString(), "another");
}
public void InsertTest()
{
HtmlElement root = new HtmlElement("root");
HtmlNodeCollection target = new HtmlNodeCollection(root);
HtmlElement child = new HtmlElement("child");
target.Add(child);
child = new HtmlElement("second");
target.Insert(0, child);
Assert.AreEqual(root, child.Parent);
Assert.AreEqual(target.IndexOf(child), 0);
target.Insert(0, null);
}
public void HtmlNodeCollectionConstructorTest()
{
HtmlElement root = new HtmlElement("root");
HtmlNodeCollection target = new HtmlNodeCollection(root);
HtmlElement child = new HtmlElement("child");
target.Add(child);
Assert.AreEqual(root, child.Parent);
}
public void GetByNameTest()
{
HtmlElement root = new HtmlElement("root");
HtmlNodeCollection target = new HtmlNodeCollection(root);
target.Add(new HtmlElement("first"));
target.Add(new HtmlElement("second"));
target.Add(new HtmlElement("second"));
Assert.AreEqual(target.GetByName("second").Count, 2);
((HtmlElement)target[0]).Nodes.Add(new HtmlElement("second"));
Assert.AreEqual(target.GetByName("second", false).Count, 2);
Assert.AreEqual(target.GetByName("second").Count, 3);
}
public void SetParentTest()
{
HtmlNode node = new HtmlText("Test");
HtmlElement parent = new HtmlElement("Parent");
node.SetParent(parent);
Assert.AreEqual(parent, node.Parent);
}
/// <summary>
/// This will move all the nodes from the specified index to the new parent.
/// </summary>
private static void MoveNodesDown(ref HtmlNodeCollection nodes, int index, HtmlElement newParent)
{
int count = nodes.Count;
for (int i = index; i < count; i++)
{
((HtmlElement)newParent).Nodes.Add(nodes[i]);
nodes[i].SetParent(newParent);
}
for (int i = index; i < count; i++)
{
nodes.RemoveAt(index);
}
newParent.IsExplicitlyTerminated = true;
}
private HtmlElement CreateElementStructure()
{
HtmlElement root = new HtmlElement("root");
root.Attributes.Add(new HtmlAttribute("name", "value"));
HtmlElement child = new HtmlElement("child");
child.Attributes.Add(new HtmlAttribute("name", "value"));
child.Attributes.Add(new HtmlAttribute("secondname", "secondvalue"));
child.IsTerminated = true;
root.Nodes.Add(child);
child = new HtmlElement("anotherchild");
child.Attributes.Add(new HtmlAttribute("name", "value"));
child.IsExplicitlyTerminated = true;
root.Nodes.Add(child);
HtmlText textNode = new HtmlText("text");
child.Nodes.Add(textNode);
return root;
}
/// <summary>
/// Internal method to maintain the identity of the parent nodes.
/// </summary>
/// <param attributeName="parentNode">The parent nodes of this one</param>
internal void SetParent(HtmlElement parent)
{
this.parent = parent;
}
internal virtual HtmlNode CreateTreeStructure()
{
// |-Root
// |-FirstChild
// | |-FirstFirstChild
// | |-FirstSecondChild
// |-SecondChild
// |-SecondFirstChild
// |-SecondSecondChild
//
HtmlElement target = new HtmlElement("Root");
HtmlElement child = new HtmlElement("FirstChild");
child.Nodes.Add(new HtmlElement("FirstFirstChild"));
child.Nodes.Add(new HtmlElement("FirstSecondChild"));
target.Nodes.Add(child);
child = new HtmlElement("SecondChild");
child.Nodes.Add(new HtmlElement("SecondFirstChild"));
child.Nodes.Add(new HtmlElement("SecondSecondChild"));
target.Nodes.Add(child);
return target;
}
internal HtmlAttributeCollection CreateTestCollection()
{
HtmlElement root = new HtmlElement("root");
HtmlAttributeCollection target = new HtmlAttributeCollection(root);
HtmlAttribute attribute = new HtmlAttribute("first");
target.Add(attribute);
attribute = new HtmlAttribute("second", "value");
target.Add(attribute);
attribute = new HtmlAttribute("third", "\"another value\"");
target.Add(attribute);
return target;
}
private static HtmlNodeCollection BuildNodeCollection(Queue<string> tokens)
{
HtmlNodeCollection nodes = new HtmlNodeCollection(null);
HtmlElement element = null;
string current;
while (tokens.Count > 0)
{
current = tokens.Dequeue();
switch (current)
{
case ("<"):
// Read open tag
if (tokens.Count == 0)
break;
current = tokens.Dequeue();
element = new HtmlElement(current);
// read the attributes and values
while (tokens.Count > 0 && (current = tokens.Dequeue()) != ">" && current != "/>")
{
string attribute_name = current;
if (tokens.Count > 0 && tokens.Peek() == "=")
{
tokens.Dequeue();
current = (tokens.Count > 0) ? tokens.Dequeue() : null;
HtmlAttribute attribute = new HtmlAttribute(attribute_name, HttpUtility.HtmlDecode(current));
element.Attributes.Add(attribute);
}
else //if (tokens.Count == 0)
{
// Null-attributeValue attribute
HtmlAttribute attribute = new HtmlAttribute(attribute_name);
element.Attributes.Add(attribute);
}
}
nodes.Add(element);
if (current == "/>")
{
element.IsTerminated = true;
element = null; //could not have any sub elements
}
else if (current == ">")
{
continue;
}
break;
case (">"):
continue;
case ("</"):
// Read close tag
if (tokens.Count == 0)
break;
current = tokens.Dequeue();
int open_index = FindTagOpenNodeIndex(nodes, current);
if (open_index != -1)
{
MoveNodesDown(ref nodes, open_index + 1, (HtmlElement)nodes[open_index]);
}
// Skip to the end of this tag
while (tokens.Count > 0 && (current = tokens.Dequeue()) != ">")
{
//shouldn't happen
}
element = null;
break;
default:
HtmlText node = new HtmlText(current);
nodes.Add(node);
break;
}
}
return nodes;
}
public void IsTextTest()
{
HtmlNode target = new HtmlText("Test");
Assert.IsTrue(target.IsText());
target = new HtmlElement("Test");
Assert.IsFalse(target.IsText());
}
