func TestReplaceSpliceOnRootNode(t *testing.T) {
defer func() {
if err := recover(); err == nil {
t.Error("TestReplaceSpliceOnRootNode didn't panic")
}
}()
tree, _ := h5.NewFromString("<div id=\"foo\">foo<span>bar</span></div><")
doc := tree.Top()
ns, _ := h5.NewFromString("<span>foo</span>")
f := Replace(ns.Top())
f(doc)
assertEqual(t, h5.Data(doc.FirstChild), "span")
assertEqual(t, h5.Data(doc.FirstChild.FirstChild), "foo")
}
func TestTransformApply(t *testing.T) {
tree, _ := h5.NewFromString("<html><body><div id=\"foo\"></div></body></html>")
tf := New(tree)
n := h5.Text("bar")
tf.Apply(AppendChildren(n), "body")
newDoc := tf.String()
assertEqual(t, newDoc, "<html><head></head><body><div id=\"foo\"></div>bar</body></html>")
}
func TestTransformApplyAll(t *testing.T) {
tree, _ := h5.NewFromString("<html><head></head><body><ul><li>foo</ul></body></html>")
tf := New(tree)
n := h5.Text("bar")
n2 := h5.Text("quux")
t1, _ := Trans(AppendChildren(n), "body li")
t2, _ := Trans(AppendChildren(n2), "body li")
tf.ApplyAll(t1, t2)
assertEqual(t, tf.String(), "<html><head></head><body><ul><li>foobarquux</li></ul></body></html>")
}
func TestDoAll(t *testing.T) {
tree, _ := h5.NewFromString("<div id=\"foo\">foo</div><")
node := tree.Top()
preNode := h5.Text("pre node")
postNode := h5.Text("post node")
f := DoAll(AppendChildren(postNode),
PrependChildren(preNode))
f(node)
assertEqual(t, h5.Data(node.FirstChild), h5.Data(preNode))
assertEqual(t, h5.Data(node.LastChild), h5.Data(postNode))
}
func TestTransformApplyMulti(t *testing.T) {
tree, _ := h5.NewFromString("<html><body><div id=\"foo\"></div></body></html>")
tf := New(tree)
tf.Apply(AppendChildren(h5.Text("")), "body")
tf.Apply(TransformAttrib("id", func(val string) string {
t.Logf("Rewriting Url")
return "bar"
}),
"div")
newDoc := tf.String()
assertEqual(t, newDoc, "<html><head></head><body><div id=\"bar\"></div></body></html>")
}
// TODO(jwall): benchmarking tests
func BenchmarkTransformApply(b *testing.B) {
for i := 0; i < b.N; i++ {
tree, _ := h5.NewFromString("<html><body><div id=\"foo\"></div></body></html")
tf := New(tree)
tf.Apply(AppendChildren(h5.Text("")), "body")
tf.Apply(TransformAttrib("id", func(val string) string {
return "bar"
}),
"div")
tf.Doc()
}
}
func grabParse(u url.URL) (t h5.Tree, err error) {
c, err := grabHttp(u.String())
if err != nil {
return
}
tp, err := h5.NewFromString(c)
if err != nil {
return
}
t = *tp
return
}
func TestTransformSubtransforms(t *testing.T) {
defer func() {
if err := recover(); err != nil {
t.Errorf("TestTransformSubtransforms paniced %s", err)
}
}()
tree, _ := h5.NewFromString("<html><body><ul><li>foo</ul></body></html>")
f, _ := Subtransform(CopyAnd(
ReplaceChildren(h5.Text("bar")),
ReplaceChildren(h5.Text("baz"), h5.Text("quux")),
), "li")
tf := New(tree)
t1, _ := Trans(f, "ul")
tf.ApplyAll(t1)
assertEqual(t, tf.String(),
"<html><head></head><body><ul><li>bar</li><li>bazquux</li></ul></body></html>")
}
func rewriteBody(containerSelector string, dest io.Writer, body string) (err error) {
if containerSelector == "" {
dest.Write([]byte(body))
return
}
var chain *selector.Chain
var document *h5.Tree
if document, err = h5.NewFromString(body); err != nil {
err = fmt.Errorf("invalid html document: %v", err)
return
}
var titleNode string
if titleNode, err = getTitleNode(document); err != nil {
return
}
if chain, err = selector.Selector(containerSelector); err != nil {
err = fmt.Errorf("invalid css: %v", containerSelector)
return
}
if matches := chain.Find(document.Top()); len(matches) > 0 {
match := matches[0:1] // Take only the first match
newBody := h5.RenderNodesToString(h5.Children(match[0]))
fmt.Printf("data: %v", h5.Data(match[0]))
dest.Write([]byte(titleNode))
dest.Write([]byte(newBody))
return
}
err = fmt.Errorf("container not found")
return
}
func TestNewTransformer(t *testing.T) {
tree, _ := h5.NewFromString("<html><body><div id=\"foo\"></div></body></html>")
tf := New(tree)
// hacky way of comparing an uncomparable type
assertEqual(t, tf.Doc().Type, tree.Top().Type)
}