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node_test.go
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node_test.go
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package xmlquery
import (
"net/http"
"net/http/httptest"
"strings"
"testing"
)
func findNode(root *Node, name string) *Node {
node := root.FirstChild
for {
if node == nil || node.Data == name {
break
}
node = node.NextSibling
}
return node
}
func childNodes(root *Node, name string) []*Node {
var list []*Node
node := root.FirstChild
for {
if node == nil {
break
}
if node.Data == name {
list = append(list, node)
}
node = node.NextSibling
}
return list
}
func testNode(t *testing.T, n *Node, expected string) {
if n.Data != expected {
t.Fatalf("expected node name is %s,but got %s", expected, n.Data)
}
}
func testAttr(t *testing.T, n *Node, name, expected string) {
for _, attr := range n.Attr {
if attr.Name.Local == name && attr.Value == expected {
return
}
}
t.Fatalf("not found attribute %s in the node %s", name, n.Data)
}
func testValue(t *testing.T, val, expected string) {
if val != expected {
t.Fatalf("expected value is %s,but got %s", expected, val)
}
}
func TestLoadURL(t *testing.T) {
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
s := `<?xml version="1.0"?>
<rss>
<title></title>
</rss>`
w.Header().Set("Content-Type", "text/xml")
w.Write([]byte(s))
}))
defer server.Close()
_, err := LoadURL(server.URL)
if err != nil {
t.Fatal(err)
}
}
func TestNamespaceURL(t *testing.T) {
s := `
<?xml version="1.0"?>
<rss version="2.0" xmlns:dc="https://purl.org/dc/elements/1.1/">
<!-- author -->
<dc:creator><![CDATA[Richard Lawler]]></dc:creator>
<dc:identifier>21|22021348</dc:identifier>
</rss>
`
doc, err := Parse(strings.NewReader(s))
if err != nil {
t.Fatal(err)
}
top := FindOne(doc, "//rss")
if top == nil {
t.Fatal("rss feed invalid")
}
node := FindOne(top, "dc:creator")
if node.Prefix != "dc" {
t.Fatalf("expected node prefix name is dc but is=%s", node.Prefix)
}
if node.NamespaceURI != "https://purl.org/dc/elements/1.1/" {
t.Fatalf("dc:creator != %s", node.NamespaceURI)
}
if strings.Index(top.InnerText(), "author") > 0 {
t.Fatalf("InnerText() include comment node text")
}
if strings.Index(top.OutputXML(true), "author") == -1 {
t.Fatal("OutputXML shoud include comment node,but not")
}
}
func TestMultipleProcInst(t *testing.T) {
s := `<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" media="screen" href="/~d/styles/rss2full.xsl"?>
<?xml-stylesheet type="text/css" media="screen" href="http://feeds.reuters.com/~d/styles/itemcontent.css"?>
<rss xmlns:feedburner="http://rssnamespace.org/feedburner/ext/1.0" version="2.0">
</rss>
`
doc, err := Parse(strings.NewReader(s))
if err != nil {
t.Fatal(err)
}
node := doc.FirstChild // <?xml ?>
if node.Data != "xml" {
t.Fatal("node.Data != xml")
}
node = node.NextSibling // New Line
node = node.NextSibling // <?xml-stylesheet?>
if node.Data != "xml-stylesheet" {
t.Fatal("node.Data != xml-stylesheet")
}
}
func TestParse(t *testing.T) {
s := `<?xml version="1.0" encoding="UTF-8"?>
<bookstore>
<book>
<title lang="en">Harry Potter</title>
<price>29.99</price>
</book>
<book>
<title lang="en">Learning XML</title>
<price>39.95</price>
</book>
</bookstore>`
root, err := Parse(strings.NewReader(s))
if err != nil {
t.Error(err)
}
if root.Type != DocumentNode {
t.Fatal("top node of tree is not DocumentNode")
}
declarNode := root.FirstChild
if declarNode.Type != DeclarationNode {
t.Fatal("first child node of tree is not DeclarationNode")
}
if declarNode.Attr[0].Name.Local != "version" && declarNode.Attr[0].Value != "1.0" {
t.Fatal("version attribute not expected")
}
bookstore := root.LastChild
if bookstore.Data != "bookstore" {
t.Fatal("bookstore elem not found")
}
if bookstore.FirstChild.Data != "\n" {
t.Fatal("first child node of bookstore is not empty node(\n)")
}
books := childNodes(bookstore, "book")
if len(books) != 2 {
t.Fatalf("expected book element count is 2, but got %d", len(books))
}
// first book element
testNode(t, findNode(books[0], "title"), "title")
testAttr(t, findNode(books[0], "title"), "lang", "en")
testValue(t, findNode(books[0], "price").InnerText(), "29.99")
testValue(t, findNode(books[0], "title").InnerText(), "Harry Potter")
// second book element
testNode(t, findNode(books[1], "title"), "title")
testAttr(t, findNode(books[1], "title"), "lang", "en")
testValue(t, findNode(books[1], "price").InnerText(), "39.95")
testValue(t, books[0].OutputXML(true), `<book><title lang="en">Harry Potter</title><price>29.99</price></book>`)
}
func TestMissDeclaration(t *testing.T) {
s := `<AAA>
<BBB></BBB>
<CCC></CCC>
</AAA>`
doc, err := Parse(strings.NewReader(s))
if err != nil {
t.Fatal(err)
}
node := FindOne(doc, "//AAA")
if node == nil {
t.Fatal("//AAA is nil")
}
}
func TestTooNested(t *testing.T) {
s := `<?xml version="1.0" encoding="UTF-8"?>
<!-- comment here-->
<AAA>
<BBB>
<DDD>
<CCC>
<DDD/>
<EEE/>
</CCC>
</DDD>
</BBB>
<CCC>
<DDD>
<EEE>
<DDD>
<FFF/>
</DDD>
</EEE>
</DDD>
</CCC>
</AAA>`
root, err := Parse(strings.NewReader(s))
if err != nil {
t.Error(err)
}
aaa := findNode(root, "AAA")
if aaa == nil {
t.Fatal("AAA node not exists")
}
ccc := aaa.LastChild
if ccc.Data != "CCC" {
t.Fatalf("expected node is CCC,but got %s", ccc.Data)
}
bbb := ccc.PrevSibling
if bbb.Data != "BBB" {
t.Fatalf("expected node is bbb,but got %s", bbb.Data)
}
ddd := findNode(bbb, "DDD")
testNode(t, ddd, "DDD")
testNode(t, ddd.LastChild, "CCC")
}
func TestSelectElement(t *testing.T) {
s := `<?xml version="1.0" encoding="UTF-8"?>
<AAA>
<BBB id="1"/>
<CCC id="2">
<DDD/>
</CCC>
<CCC id="3">
<DDD/>
</CCC>
</AAA>`
root, err := Parse(strings.NewReader(s))
if err != nil {
t.Error(err)
}
version := root.FirstChild.SelectAttr("version")
if version != "1.0" {
t.Fatal("version!=1.0")
}
aaa := findNode(root, "AAA")
var n *Node
n = aaa.SelectElement("BBB")
if n == nil {
t.Fatalf("n is nil")
}
n = aaa.SelectElement("CCC")
if n == nil {
t.Fatalf("n is nil")
}
var ns []*Node
ns = aaa.SelectElements("CCC")
if len(ns) != 2 {
t.Fatalf("len(ns)!=2")
}
}
func TestEscapeOutputValue(t *testing.T) {
data := `<AAA><*></AAA>`
root, err := Parse(strings.NewReader(data))
if err != nil {
t.Error(err)
}
escapedInnerText := root.OutputXML(true)
if !strings.Contains(escapedInnerText, "<*>") {
t.Fatal("Inner Text has not been escaped")
}
}