func TestReplaceChildren(t *testing.T) {
node := h5.Anchor("", "foo")
assertEqual(t, h5.NewTree(node).String(), "<a>foo</a>")
child := h5.Text("baz ")
child2 := h5.Text("quux")
ReplaceChildren(child, child2)(node)
assertEqual(t, h5.NewTree(node).String(), "<a>baz quux</a>")
}
// Trace is a debugging wrapper for transform funcs.
// It calls traceFunc with debugging information before and after the
// TransformFunc is applied.
func Trace(f TransformFunc, traceFunc func(msg string, args ...interface{}), msg string, args ...interface{}) TransformFunc {
return func(n *html.Node) {
traceFunc(msg, args...)
p := n.Parent
if p == nil {
p = n
}
traceFunc("Before: %s", h5.NewTree(p).String())
f(n)
traceFunc("After: %s", h5.NewTree(p).String())
}
}
func TestAppendChildren(t *testing.T) {
node := h5.Anchor("", "")
child := h5.Text("foo ")
child2 := h5.Text("bar")
AppendChildren(child, child2)(node)
assertEqual(t, h5.NewTree(node).String(), "<a>foo bar</a>")
}
func TestCopyAnd(t *testing.T) {
defer func() {
if err := recover(); err != nil {
t.Errorf("TestCopyAnd paniced %s", err)
}
}()
node := h5.Div("", nil, h5.Div("", nil, h5.Text("foo")))
assertEqual(t, h5.NewTree(node).String(),
"<div><div>foo</div></div>")
CopyAnd(
AppendChildren(h5.Text("bar")),
ReplaceChildren(h5.Text("baz")),
)(node.FirstChild)
assertEqual(t, h5.NewTree(node).String(),
"<div><div>foobar</div><div>baz</div></div>")
}
func TestReplace(t *testing.T) {
defer func() {
if err := recover(); err != nil {
t.Error("TestReplace paniced")
}
}()
node := h5.Div("", nil, h5.Div("", nil, h5.Text("foo")))
replacement := h5.Div("", nil, h5.Text("bar"))
Replace(replacement)(node.FirstChild)
assertEqual(t, h5.NewTree(node).String(),
"<div><div>bar</div></div>")
}
func TestReplaceSplice(t *testing.T) {
defer func() {
if err := recover(); err != nil {
t.Error("TestReplaceSplice paniced")
}
}()
node := h5.Div("foo", nil,
h5.Text("foo"),
h5.Element("span", nil, h5.Text("bar")),
)
node2 := h5.Element("span", nil, h5.Text("foo"))
Replace(node2)(node.FirstChild)
assertEqual(t, h5.NewTree(node).String(),
"<div id=\"foo\"><span>foo</span><span>bar</span></div>")
}
func nodeToString(n *html.Node) string {
t := h5.NewTree(n)
return t.String()
}
func TestRemoveChildren(t *testing.T) {
node := h5.Anchor("", "foo")
RemoveChildren()(node)
assertEqual(t, h5.NewTree(node).String(), "<a></a>")
}