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// Copyright 2024 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 helpers_test
import (
"bytes"
"html/template"
"strings"
"testing"
qt "github.com/frankban/quicktest"
"github.com/gohugoio/hugo/config"
"github.com/gohugoio/hugo/helpers"
)
func TestTrimShortHTML(t *testing.T) {
tests := []struct {
input, output []byte
}{
{[]byte(""), []byte("")},
{[]byte("Plain text"), []byte("Plain text")},
// This seems wrong. Why touch it if it doesn't have p tag?
// {[]byte(" \t\n Whitespace text\n\n"), []byte("Whitespace text")},
{[]byte("<p>Simple paragraph</p>"), []byte("Simple paragraph")},
{[]byte("\n \n \t <p> \t Whitespace\nHTML \n\t </p>\n\t"), []byte("Whitespace\nHTML")},
{[]byte("<p>Multiple</p><p>paragraphs</p>"), []byte("<p>Multiple</p><p>paragraphs</p>")},
{[]byte("<p>Nested<p>paragraphs</p></p>"), []byte("<p>Nested<p>paragraphs</p></p>")},
{[]byte("<p>Hello</p>\n<ul>\n<li>list1</li>\n<li>list2</li>\n</ul>"), []byte("<p>Hello</p>\n<ul>\n<li>list1</li>\n<li>list2</li>\n</ul>")},
// Issue #11698
{[]byte("<h2 id=`a`>b</h2>\n\n<p>c</p>"), []byte("<h2 id=`a`>b</h2>\n\n<p>c</p>")},
}
c := newTestContentSpec(nil)
for i, test := range tests {
output := c.TrimShortHTML(test.input)
if !bytes.Equal(test.output, output) {
t.Errorf("Test %d failed. Expected %q got %q", i, test.output, output)
}
}
}
func TestBytesToHTML(t *testing.T) {
c := qt.New(t)
c.Assert(helpers.BytesToHTML([]byte("dobedobedo")), qt.Equals, template.HTML("dobedobedo"))
}
var benchmarkTruncateString = strings.Repeat("This is a sentence about nothing.", 20)
func BenchmarkTestTruncateWordsToWholeSentence(b *testing.B) {
c := newTestContentSpec(nil)
b.ResetTimer()
for i := 0; i < b.N; i++ {
c.TruncateWordsToWholeSentence(benchmarkTruncateString)
}
}
func TestTruncateWordsToWholeSentence(t *testing.T) {
type test struct {
input, expected string
max int
truncated bool
}
data := []test{
{"a b c", "a b c", 12, false},
{"a b c", "a b c", 3, false},
{"a", "a", 1, false},
{"This is a sentence.", "This is a sentence.", 5, false},
{"This is also a sentence!", "This is also a sentence!", 1, false},
{"To be. Or not to be. That's the question.", "To be.", 1, true},
{" \nThis is not a sentence\nAnd this is another", "This is not a sentence", 4, true},
{"", "", 10, false},
{"This... is a more difficult test?", "This... is a more difficult test?", 1, false},
}
for i, d := range data {
cfg := config.New()
cfg.Set("summaryLength", d.max)
c := newTestContentSpec(cfg)
output, truncated := c.TruncateWordsToWholeSentence(d.input)
if d.expected != output {
t.Errorf("Test %d failed. Expected %q got %q", i, d.expected, output)
}
if d.truncated != truncated {
t.Errorf("Test %d failed. Expected truncated=%t got %t", i, d.truncated, truncated)
}
}
}
func TestTruncateWordsByRune(t *testing.T) {
type test struct {
input, expected string
max int
truncated bool
}
data := []test{
{"", "", 1, false},
{"a b c", "a b c", 12, false},
{"a b c", "a b c", 3, false},
{"a", "a", 1, false},
{"Hello 中国", "", 0, true},
{"这是中文，全中文。", "这是中文，", 5, true},
{"Hello 中国", "Hello 中", 2, true},
{"Hello 中国", "Hello 中国", 3, false},
{"Hello中国 Good 好的", "Hello中国 Good 好", 9, true},
{"This is a sentence.", "This is", 2, true},
{"This is also a sentence!", "This", 1, true},
{"To be. Or not to be. That's the question.", "To be. Or not", 4, true},
{" \nThis is not a sentence\n ", "This is not", 3, true},
}
for i, d := range data {
cfg := config.New()
cfg.Set("summaryLength", d.max)
c := newTestContentSpec(cfg)
output, truncated := c.TruncateWordsByRune(strings.Fields(d.input))
if d.expected != output {
t.Errorf("Test %d failed. Expected %q got %q", i, d.expected, output)
}
if d.truncated != truncated {
t.Errorf("Test %d failed. Expected truncated=%t got %t", i, d.truncated, truncated)
}
}
}
func TestExtractTOCNormalContent(t *testing.T) {
content := []byte("<nav>\n<ul>\nTOC<li><a href=\"#")
actualTocLessContent, actualToc := helpers.ExtractTOC(content)
expectedTocLess := []byte("TOC<li><a href=\"#")
expectedToc := []byte("<nav id=\"TableOfContents\">\n<ul>\n")
if !bytes.Equal(actualTocLessContent, expectedTocLess) {
t.Errorf("Actual tocless (%s) did not equal expected (%s) tocless content", actualTocLessContent, expectedTocLess)
}
if !bytes.Equal(actualToc, expectedToc) {
t.Errorf("Actual toc (%s) did not equal expected (%s) toc content", actualToc, expectedToc)
}
}
func TestExtractTOCGreaterThanSeventy(t *testing.T) {
content := []byte("<nav>\n<ul>\nTOC This is a very long content which will definitely be greater than seventy, I promise you that.<li><a href=\"#")
actualTocLessContent, actualToc := helpers.ExtractTOC(content)
// Because the start of Toc is greater than 70+startpoint of <li> content and empty TOC will be returned
expectedToc := []byte("")
if !bytes.Equal(actualTocLessContent, content) {
t.Errorf("Actual tocless (%s) did not equal expected (%s) tocless content", actualTocLessContent, content)
}
if !bytes.Equal(actualToc, expectedToc) {
t.Errorf("Actual toc (%s) did not equal expected (%s) toc content", actualToc, expectedToc)
}
}
func TestExtractNoTOC(t *testing.T) {
content := []byte("TOC")
actualTocLessContent, actualToc := helpers.ExtractTOC(content)
expectedToc := []byte("")
if !bytes.Equal(actualTocLessContent, content) {
t.Errorf("Actual tocless (%s) did not equal expected (%s) tocless content", actualTocLessContent, content)
}
if !bytes.Equal(actualToc, expectedToc) {
t.Errorf("Actual toc (%s) did not equal expected (%s) toc content", actualToc, expectedToc)
}
}
var totalWordsBenchmarkString = strings.Repeat("Hugo Rocks ", 200)
func TestTotalWords(t *testing.T) {
for i, this := range []struct {
s string
words int
}{
{"Two, Words!", 2},
{"Word", 1},
{"", 0},
{"One, Two, Three", 3},
{totalWordsBenchmarkString, 400},
} {
actualWordCount := helpers.TotalWords(this.s)
if actualWordCount != this.words {
t.Errorf("[%d] Actual word count (%d) for test string (%s) did not match %d", i, actualWordCount, this.s, this.words)
}
}
}
func BenchmarkTotalWords(b *testing.B) {
b.ResetTimer()
for i := 0; i < b.N; i++ {
wordCount := helpers.TotalWords(totalWordsBenchmarkString)
if wordCount != 400 {
b.Fatal("Wordcount error")
}
}
}
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