public void AddBeforeSelf_NullObjectInContent_ThrowsArgumentNullException()
{
HtmlElement element = new HtmlElement("element");
Assert.Throws <ArgumentNullException>("content", () => element.AddBeforeSelf(new HtmlElement[] { null }));
Assert.Throws <ArgumentNullException>("content", () => element.AddBeforeSelf((IEnumerable <HtmlElement>) new HtmlElement[] { null }));
}
public void AddBeforeSelf_SameElement_ThrowsInvalidOperationException()
{
HtmlElement element = new HtmlElement("html");
Assert.Throws <InvalidOperationException>(() => element.AddBeforeSelf(element));
Assert.Throws <InvalidOperationException>(() => element.AddBeforeSelf(new HtmlElement[] { element }));
Assert.Throws <InvalidOperationException>(() => element.AddBeforeSelf((IEnumerable <HtmlElement>) new HtmlElement[] { element }));
}
public void AddBeforeSelf_ElementToVoidElement_ThrowsInvalidOperationException()
{
HtmlElement element = new HtmlElement("br", isVoid: true);
HtmlElement newElement = new HtmlElement("p");
Assert.Throws <InvalidOperationException>(() => element.AddBeforeSelf(newElement));
Assert.Throws <InvalidOperationException>(() => element.AddBeforeSelf(new HtmlElement[] { newElement }));
Assert.Throws <InvalidOperationException>(() => element.AddBeforeSelf((IEnumerable <HtmlElement>) new HtmlElement[] { newElement }));
}
public void AddBeforeSelf_DuplicateElement_ThrowsInvalidOperationException()
{
HtmlElement parent = new HtmlElement("parent");
HtmlElement element = new HtmlElement("child");
parent.Add(element);
Assert.Throws <InvalidOperationException>(() => parent.AddBeforeSelf(element));
Assert.Throws <InvalidOperationException>(() => parent.AddBeforeSelf(new HtmlElement[] { element }));
Assert.Throws <InvalidOperationException>(() => parent.AddBeforeSelf((IEnumerable <HtmlElement>) new HtmlElement[] { element }));
}
public void AddBeforeSelf_HtmlNode()
{
HtmlElement parent = new HtmlElement("parent");
HtmlElement child1 = new HtmlElement("child1");
parent.Add(child1);
// Element
HtmlElement child2 = new HtmlElement("child2");
child1.AddBeforeSelf(child2);
Assert.Equal(parent, child2.Parent);
Assert.Equal(new HtmlElement[] { child2, child1 }, parent.Elements());
// Comment
HtmlComment comment = new HtmlComment("comment");
child1.AddBeforeSelf(comment);
Assert.Equal(parent, comment.Parent);
Assert.Equal(new HtmlObject[] { child2, comment, child1 }, parent.Nodes());
}
public void AddBeforeSelf_IEnumerableHtmlObject()
{
HtmlElement parent = new HtmlElement("parent");
HtmlElement child1 = new HtmlElement("child1");
parent.Add(child1);
HtmlElement child2 = new HtmlElement("child2");
HtmlElement child3 = new HtmlElement("child3");
child1.AddBeforeSelf((IEnumerable <HtmlElement>) new HtmlElement[] { child2, child3 });
Assert.Equal(parent, child2.Parent);
Assert.Equal(parent, child3.Parent);
Assert.Equal(new HtmlElement[] { child3, child2, child1 }, parent.Elements());
}
