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559 lines
10 KiB
559 lines
10 KiB
package cascadia
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import (
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"strings"
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"testing"
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"golang.org/x/net/html"
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)
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type selectorTest struct {
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HTML, selector string
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results []string
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}
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func nodeString(n *html.Node) string {
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switch n.Type {
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case html.TextNode:
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return n.Data
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case html.ElementNode:
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return html.Token{
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Type: html.StartTagToken,
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Data: n.Data,
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Attr: n.Attr,
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}.String()
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}
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return ""
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}
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var selectorTests = []selectorTest{
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{
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`<body><address>This address...</address></body>`,
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"address",
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[]string{
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"<address>",
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},
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},
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{
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`<html><head></head><body></body></html>`,
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"*",
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[]string{
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"",
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"<html>",
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"<head>",
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"<body>",
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},
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},
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{
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`<p id="foo"><p id="bar">`,
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"#foo",
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[]string{
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`<p id="foo">`,
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},
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},
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{
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`<ul><li id="t1"><p id="t1">`,
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"li#t1",
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[]string{
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`<li id="t1">`,
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},
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},
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{
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`<ol><li id="t4"><li id="t44">`,
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"*#t4",
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[]string{
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`<li id="t4">`,
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},
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},
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{
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`<ul><li class="t1"><li class="t2">`,
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".t1",
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[]string{
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`<li class="t1">`,
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},
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},
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{
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`<p class="t1 t2">`,
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"p.t1",
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[]string{
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`<p class="t1 t2">`,
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},
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},
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{
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`<div class="test">`,
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"div.teST",
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[]string{},
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},
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{
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`<p class="t1 t2">`,
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".t1.fail",
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[]string{},
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},
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{
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`<p class="t1 t2">`,
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"p.t1.t2",
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[]string{
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`<p class="t1 t2">`,
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},
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},
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{
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`<p><p title="title">`,
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"p[title]",
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[]string{
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`<p title="title">`,
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},
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},
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{
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`<address><address title="foo"><address title="bar">`,
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`address[title="foo"]`,
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[]string{
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`<address title="foo">`,
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},
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},
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{
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`<p title="tot foo bar">`,
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`[ title ~= foo ]`,
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[]string{
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`<p title="tot foo bar">`,
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},
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},
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{
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`<p title="hello world">`,
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`[title~="hello world"]`,
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[]string{},
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},
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{
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`<p lang="en"><p lang="en-gb"><p lang="enough"><p lang="fr-en">`,
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`[lang|="en"]`,
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[]string{
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`<p lang="en">`,
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`<p lang="en-gb">`,
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},
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},
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{
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`<p title="foobar"><p title="barfoo">`,
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`[title^="foo"]`,
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[]string{
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`<p title="foobar">`,
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},
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},
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{
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`<p title="foobar"><p title="barfoo">`,
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`[title$="bar"]`,
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[]string{
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`<p title="foobar">`,
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},
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},
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{
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`<p title="foobarufoo">`,
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`[title*="bar"]`,
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[]string{
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`<p title="foobarufoo">`,
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},
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},
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{
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`<p class="t1 t2">`,
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".t1:not(.t2)",
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[]string{},
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},
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{
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`<div class="t3">`,
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`div:not(.t1)`,
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[]string{
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`<div class="t3">`,
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},
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},
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{
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`<ol><li id=1><li id=2><li id=3></ol>`,
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`li:nth-child(odd)`,
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[]string{
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`<li id="1">`,
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`<li id="3">`,
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},
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},
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{
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`<ol><li id=1><li id=2><li id=3></ol>`,
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`li:nth-child(even)`,
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[]string{
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`<li id="2">`,
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},
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},
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{
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`<ol><li id=1><li id=2><li id=3></ol>`,
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`li:nth-child(-n+2)`,
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[]string{
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`<li id="1">`,
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`<li id="2">`,
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},
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},
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{
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`<ol><li id=1><li id=2><li id=3></ol>`,
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`li:nth-child(3n+1)`,
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[]string{
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`<li id="1">`,
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},
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},
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{
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`<ol><li id=1><li id=2><li id=3><li id=4></ol>`,
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`li:nth-last-child(odd)`,
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[]string{
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`<li id="2">`,
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`<li id="4">`,
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},
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},
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{
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`<ol><li id=1><li id=2><li id=3><li id=4></ol>`,
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`li:nth-last-child(even)`,
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[]string{
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`<li id="1">`,
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`<li id="3">`,
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},
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},
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{
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`<ol><li id=1><li id=2><li id=3><li id=4></ol>`,
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`li:nth-last-child(-n+2)`,
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[]string{
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`<li id="3">`,
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`<li id="4">`,
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},
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},
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{
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`<ol><li id=1><li id=2><li id=3><li id=4></ol>`,
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`li:nth-last-child(3n+1)`,
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[]string{
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`<li id="1">`,
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`<li id="4">`,
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},
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},
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{
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`<p>some text <span id="1">and a span</span><span id="2"> and another</span></p>`,
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`span:first-child`,
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[]string{
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`<span id="1">`,
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},
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},
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{
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`<span>a span</span> and some text`,
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`span:last-child`,
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[]string{
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`<span>`,
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},
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},
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{
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`<address></address><p id=1><p id=2>`,
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`p:nth-of-type(2)`,
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[]string{
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`<p id="2">`,
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},
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},
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{
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`<address></address><p id=1><p id=2></p><a>`,
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`p:nth-last-of-type(2)`,
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[]string{
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`<p id="1">`,
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},
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},
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{
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`<address></address><p id=1><p id=2></p><a>`,
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`p:last-of-type`,
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[]string{
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`<p id="2">`,
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},
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},
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{
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`<address></address><p id=1><p id=2></p><a>`,
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`p:first-of-type`,
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[]string{
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`<p id="1">`,
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},
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},
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{
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`<div><p id="1"></p><a></a></div><div><p id="2"></p></div>`,
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`p:only-child`,
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[]string{
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`<p id="2">`,
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},
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},
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{
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`<div><p id="1"></p><a></a></div><div><p id="2"></p><p id="3"></p></div>`,
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`p:only-of-type`,
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[]string{
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`<p id="1">`,
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},
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},
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{
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`<p id="1"><!-- --><p id="2">Hello<p id="3"><span>`,
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`:empty`,
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[]string{
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`<head>`,
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`<p id="1">`,
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`<span>`,
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},
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},
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{
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`<div><p id="1"><table><tr><td><p id="2"></table></div><p id="3">`,
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`div p`,
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[]string{
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`<p id="1">`,
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`<p id="2">`,
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},
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},
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{
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`<div><p id="1"><table><tr><td><p id="2"></table></div><p id="3">`,
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`div table p`,
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[]string{
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`<p id="2">`,
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},
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},
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{
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`<div><p id="1"><div><p id="2"></div><table><tr><td><p id="3"></table></div>`,
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`div > p`,
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[]string{
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`<p id="1">`,
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`<p id="2">`,
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},
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},
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{
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`<p id="1"><p id="2"></p><address></address><p id="3">`,
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`p ~ p`,
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[]string{
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`<p id="2">`,
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`<p id="3">`,
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},
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},
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{
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`<p id="1"></p>
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<!--comment-->
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<p id="2"></p><address></address><p id="3">`,
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`p + p`,
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[]string{
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`<p id="2">`,
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},
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},
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{
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`<ul><li></li><li></li></ul><p>`,
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`li, p`,
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[]string{
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"<li>",
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"<li>",
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"<p>",
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},
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},
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{
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`<p id="1"><p id="2"></p><address></address><p id="3">`,
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`p +/*This is a comment*/ p`,
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[]string{
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`<p id="2">`,
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},
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},
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{
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`<p>Text block that <span>wraps inner text</span> and continues</p>`,
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`p:contains("that wraps")`,
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[]string{
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`<p>`,
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},
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},
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{
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`<p>Text block that <span>wraps inner text</span> and continues</p>`,
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`p:containsOwn("that wraps")`,
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[]string{},
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},
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{
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`<p>Text block that <span>wraps inner text</span> and continues</p>`,
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`:containsOwn("inner")`,
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[]string{
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`<span>`,
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},
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},
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{
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`<p>Text block that <span>wraps inner text</span> and continues</p>`,
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`p:containsOwn("block")`,
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[]string{
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`<p>`,
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},
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},
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{
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`<div id="d1"><p id="p1"><span>text content</span></p></div><div id="d2"/>`,
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`div:has(#p1)`,
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[]string{
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`<div id="d1">`,
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},
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},
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{
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`<div id="d1"><p id="p1"><span>contents 1</span></p></div>
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<div id="d2"><p>contents <em>2</em></p></div>`,
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`div:has(:containsOwn("2"))`,
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[]string{
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`<div id="d2">`,
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},
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},
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{
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`<body><div id="d1"><p id="p1"><span>contents 1</span></p></div>
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<div id="d2"><p id="p2">contents <em>2</em></p></div></body>`,
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`body :has(:containsOwn("2"))`,
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[]string{
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`<div id="d2">`,
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`<p id="p2">`,
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},
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},
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{
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`<body><div id="d1"><p id="p1"><span>contents 1</span></p></div>
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<div id="d2"><p id="p2">contents <em>2</em></p></div></body>`,
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`body :haschild(:containsOwn("2"))`,
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[]string{
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`<p id="p2">`,
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},
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},
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{
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`<p id="p1">0123456789</p><p id="p2">abcdef</p><p id="p3">0123ABCD</p>`,
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`p:matches([\d])`,
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[]string{
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`<p id="p1">`,
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`<p id="p3">`,
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},
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},
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{
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`<p id="p1">0123456789</p><p id="p2">abcdef</p><p id="p3">0123ABCD</p>`,
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`p:matches([a-z])`,
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[]string{
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`<p id="p2">`,
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},
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},
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{
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`<p id="p1">0123456789</p><p id="p2">abcdef</p><p id="p3">0123ABCD</p>`,
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`p:matches([a-zA-Z])`,
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[]string{
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`<p id="p2">`,
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`<p id="p3">`,
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},
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},
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{
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`<p id="p1">0123456789</p><p id="p2">abcdef</p><p id="p3">0123ABCD</p>`,
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`p:matches([^\d])`,
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[]string{
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`<p id="p2">`,
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`<p id="p3">`,
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},
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},
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{
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`<p id="p1">0123456789</p><p id="p2">abcdef</p><p id="p3">0123ABCD</p>`,
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`p:matches(^(0|a))`,
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[]string{
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`<p id="p1">`,
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`<p id="p2">`,
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`<p id="p3">`,
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},
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},
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{
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`<p id="p1">0123456789</p><p id="p2">abcdef</p><p id="p3">0123ABCD</p>`,
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`p:matches(^\d+$)`,
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[]string{
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`<p id="p1">`,
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},
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},
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{
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`<p id="p1">0123456789</p><p id="p2">abcdef</p><p id="p3">0123ABCD</p>`,
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`p:not(:matches(^\d+$))`,
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[]string{
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`<p id="p2">`,
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`<p id="p3">`,
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},
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},
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{
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`<div><p id="p1">01234<em>567</em>89</p><div>`,
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`div :matchesOwn(^\d+$)`,
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[]string{
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`<p id="p1">`,
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`<em>`,
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},
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},
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{
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`<ul>
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<li><a id="a1" href="http://www.google.com/finance"/>
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<li><a id="a2" href="http://finance.yahoo.com/"/>
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<li><a id="a2" href="http://finance.untrusted.com/"/>
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<li><a id="a3" href="https://www.google.com/news"/>
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<li><a id="a4" href="http://news.yahoo.com"/>
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</ul>`,
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`[href#=(fina)]:not([href#=(\/\/[^\/]+untrusted)])`,
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[]string{
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`<a id="a1" href="http://www.google.com/finance">`,
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`<a id="a2" href="http://finance.yahoo.com/">`,
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},
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},
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{
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`<ul>
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<li><a id="a1" href="http://www.google.com/finance"/>
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<li><a id="a2" href="http://finance.yahoo.com/"/>
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<li><a id="a3" href="https://www.google.com/news"/>
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<li><a id="a4" href="http://news.yahoo.com"/>
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</ul>`,
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`[href#=(^https:\/\/[^\/]*\/?news)]`,
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[]string{
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`<a id="a3" href="https://www.google.com/news">`,
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},
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},
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{
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`<form>
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<label>Username <input type="text" name="username" /></label>
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<label>Password <input type="password" name="password" /></label>
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<label>Country
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<select name="country">
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<option value="ca">Canada</option>
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<option value="us">United States</option>
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</select>
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</label>
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<label>Bio <textarea name="bio"></textarea></label>
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<button>Sign up</button>
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</form>`,
|
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`:input`,
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[]string{
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`<input type="text" name="username">`,
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`<input type="password" name="password">`,
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`<select name="country">`,
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`<textarea name="bio">`,
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`<button>`,
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},
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},
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}
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|
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func TestSelectors(t *testing.T) {
|
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for _, test := range selectorTests {
|
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s, err := Compile(test.selector)
|
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if err != nil {
|
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t.Errorf("error compiling %q: %s", test.selector, err)
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continue
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}
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doc, err := html.Parse(strings.NewReader(test.HTML))
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if err != nil {
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t.Errorf("error parsing %q: %s", test.HTML, err)
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continue
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}
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matches := s.MatchAll(doc)
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if len(matches) != len(test.results) {
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t.Errorf("wanted %d elements, got %d instead", len(test.results), len(matches))
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continue
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}
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|
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for i, m := range matches {
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got := nodeString(m)
|
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if got != test.results[i] {
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t.Errorf("wanted %s, got %s instead", test.results[i], got)
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}
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}
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firstMatch := s.MatchFirst(doc)
|
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if len(test.results) == 0 {
|
|
if firstMatch != nil {
|
|
t.Errorf("MatchFirst: want nil, got %s", nodeString(firstMatch))
|
|
}
|
|
} else {
|
|
got := nodeString(firstMatch)
|
|
if got != test.results[0] {
|
|
t.Errorf("MatchFirst: want %s, got %s", test.results[0], got)
|
|
}
|
|
}
|
|
}
|
|
}
|