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// Copyright 2020 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package publisher
import (
"bytes"
"fmt"
"io"
"math/rand"
"strings"
"testing"
"time"
"github.com/gohugoio/hugo/config"
"github.com/gohugoio/hugo/media"
"github.com/gohugoio/hugo/minifiers"
"github.com/gohugoio/hugo/output"
qt "github.com/frankban/quicktest"
)
func TestClassCollector(t *testing.T) {
c := qt.New((t))
rnd := rand.New(rand.NewSource(time.Now().Unix()))
f := func(tags, classes, ids string) HTMLElements {
var tagss, classess, idss []string
if tags != "" {
tagss = strings.Split(tags, " ")
}
if classes != "" {
classess = strings.Split(classes, " ")
}
if ids != "" {
idss = strings.Split(ids, " ")
}
return HTMLElements{
Tags: tagss,
Classes: classess,
IDs: idss,
}
}
skipMinifyTest := map[string]bool{
"Script tags content should be skipped": true, // https://github.com/tdewolff/minify/issues/396
}
for _, test := range []struct {
name string
html string
expect HTMLElements
}{
{"basic", `<body class="b a"></body>`, f("body", "a b", "")},
{"duplicates", `<div class="b a b"></div><div class="b a b"></div>x'`, f("div", "a b", "")},
{"single quote", `<body class='b a'></body>`, f("body", "a b", "")},
{"no quote", `<body class=b id=myelement></body>`, f("body", "b", "myelement")},
{"short", `<i>`, f("i", "", "")},
{"invalid", `< body class="b a"></body><div></div>`, f("div", "", "")},
// https://github.com/gohugoio/hugo/issues/7318
{"thead", `<table class="cl1">
<thead class="cl2"><tr class="cl3"><td class="cl4"></td></tr></thead>
<tbody class="cl5"><tr class="cl6"><td class="cl7"></td></tr></tbody>
</table>`, f("table tbody td thead tr", "cl1 cl2 cl3 cl4 cl5 cl6 cl7", "")},
{"thead uppercase", `<TABLE class="CL1">
<THEAD class="CL2"><TR class="CL3"><TD class="CL4"></TD></TR></THEAD>
<TBODY class="CL5"><TR class="CL6"><TD class="CL7"></TD></TR></TBODY>
</TABLE>`, f("table tbody td thead tr", "CL1 CL2 CL3 CL4 CL5 CL6 CL7", "")},
// https://github.com/gohugoio/hugo/issues/7161
{"minified a href", `<a class="b a" href=/></a>`, f("a", "a b", "")},
{"AlpineJS bind 1", `<body>
<div x-bind:class="{
'class1': data.open,
'class2 class3': data.foo == 'bar'
}">
</div>
</body>`, f("body div", "class1 class2 class3", "")},
{"AlpineJS bind 2", `<div x-bind:class="{ 'bg-black': filter.checked }" class="inline-block mr-1 mb-2 rounded bg-gray-300 px-2 py-2">FOO</div>`,
f("div", "bg-black bg-gray-300 inline-block mb-2 mr-1 px-2 py-2 rounded", ""),
},
{"AlpineJS bind 3", `<div x-bind:class="{ 'text-gray-800': !checked, 'text-white': checked }"></div>`, f("div", "text-gray-800 text-white", "")},
{"AlpineJS bind 4", `<div x-bind:class="{ 'text-gray-800': !checked,
'text-white': checked }"></div>`, f("div", "text-gray-800 text-white", "")},
{"AlpineJS bind 5", `<a x-bind:class="{
'text-a': a && b,
'text-b': !a && b || c,
'pl-3': a === 1,
pl-2: b == 3,
'text-gray-600': (a > 1)
}" class="block w-36 cursor-pointer pr-3 no-underline capitalize"></a>`, f("a", "block capitalize cursor-pointer no-underline pl-2 pl-3 pr-3 text-a text-b text-gray-600 w-36", "")},
{"AlpineJS transition 1", `<div x-transition:enter-start="opacity-0 transform mobile:-translate-x-8 sm:-translate-y-8">`, f("div", "mobile:-translate-x-8 opacity-0 sm:-translate-y-8 transform", "")},
{"Vue bind", `<div v-bind:class="{ active: isActive }"></div>`, f("div", "active", "")},
// Issue #7746
{"Apostrophe inside attribute value", `<a class="missingclass" title="Plus d'information">my text</a><div></div>`, f("a div", "missingclass", "")},
// Issue #7567
{"Script tags content should be skipped", `<script><span>foo</span><span>bar</span></script><div class="foo"></div>`, f("div script", "foo", "")},
{"Style tags content should be skipped", `<style>p{color: red;font-size: 20px;}</style><div class="foo"></div>`, f("div style", "foo", "")},
{"Pre tags content should be skipped", `<pre class="preclass"><span>foo</span><span>bar</span></pre><div class="foo"></div>`, f("div pre", "foo preclass", "")},
{"Textarea tags content should be skipped", `<textarea class="textareaclass"><span>foo</span><span>bar</span></textarea><div class="foo"></div>`, f("div textarea", "foo textareaclass", "")},
{"DOCTYPE should beskipped", `<!DOCTYPE html>`, f("", "", "")},
{"Comments should be skipped", `<!-- example comment -->`, f("", "", "")},
{"Comments with elements before and after", `<div></div><!-- example comment --><span><span>`, f("div span", "", "")},
// Issue #8530
{"Comment with single quote", `<!-- Hero Area Image d'accueil --><i class="foo">`, f("i", "foo", "")},
{"Uppercase tags", `<DIV></DIV>`, f("div", "", "")},
{"Predefined tags with distinct casing", `<script>if (a < b) { nothing(); }</SCRIPT><div></div>`, f("div script", "", "")},
// Issue #8417
{"Tabs inline", `<hr id="a" class="foo"><div class="bar">d</div>`, f("div hr", "bar foo", "a")},
{"Tabs on multiple rows", `<form
id="a"
action="www.example.com"
method="post"
></form>
<div id="b" class="foo">d</div>`, f("div form", "foo", "a b")},
{"Big input, multibyte runes", strings.Repeat(`神真美好 `, rnd.Intn(500)+1) + "<div id=\"神真美好\" class=\"foo\">" + strings.Repeat(`神真美好 `, rnd.Intn(100)+1) + " <span>神真美好</span>", f("div span", "foo", "神真美好")},
} {
for _, variant := range []struct {
minify bool
}{
{minify: false},
{minify: true},
} {
c.Run(fmt.Sprintf("%s--minify-%t", test.name, variant.minify), func(c *qt.C) {
w := newHTMLElementsCollectorWriter(newHTMLElementsCollector())
if variant.minify {
if skipMinifyTest[test.name] {
c.Skip("skip minify test")
}
v := config.NewWithTestDefaults()
m, _ := minifiers.New(media.DefaultTypes, output.DefaultFormats, v)
m.Minify(media.HTMLType, w, strings.NewReader(test.html))
} else {
var buff bytes.Buffer
buff.WriteString(test.html)
io.Copy(w, &buff)
}
got := w.collector.getHTMLElements()
c.Assert(got, qt.DeepEquals, test.expect)
})
}
}
}
func BenchmarkElementsCollectorWriter(b *testing.B) {
const benchHTML = `
<!DOCTYPE html>
<html>
<head>
<title>title</title>
<style>
a {color: red;}
.c {color: blue;}
</style>
</head>
<body id="i1" class="a b c d">
<a class="c d e"></a>
<hr>
<a class="c d e"></a>
<a class="c d e"></a>
<hr>
<a id="i2" class="c d e f"></a>
<a id="i3" class="c d e"></a>
<a class="c d e"></a>
<p>To force<br> line breaks<br> in a text,<br> use the br<br> element.</p>
<hr>
<a class="c d e"></a>
<a class="c d e"></a>
<a class="c d e"></a>
<a class="c d e"></a>
<table>
<thead class="ch">
<tr>
<th>Month</th>
<th>Savings</th>
</tr>
</thead>
<tbody class="cb">
<tr>
<td>January</td>
<td>$100</td>
</tr>
<tr>
<td>February</td>
<td>$200</td>
</tr>
</tbody>
<tfoot class="cf">
<tr>
<td></td>
<td>$300</td>
</tr>
</tfoot>
</table>
</body>
</html>
`
for i := 0; i < b.N; i++ {
w := newHTMLElementsCollectorWriter(newHTMLElementsCollector())
fmt.Fprint(w, benchHTML)
}
}
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