hugo/helpers/content_test.go
Brendan Roy 8717a60cc0 Change SummaryLength to be configurable (#3924)
Move SummaryLength into the ContentSpec struct and refactor the
relevant summary functions to be methods of ContentSpec. The new
summaryLength struct member is configurable by the summaryLength config
value, and the default remains 70. Also updates hugolib/page to use the
refactored methods.

Resolves #3734
2017-09-29 09:04:55 +02:00

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// Copyright 2015 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
import (
"bytes"
"html/template"
"strings"
"testing"
"github.com/miekg/mmark"
"github.com/russross/blackfriday"
"github.com/stretchr/testify/assert"
)
const tstHTMLContent = "<!DOCTYPE html><html><head><script src=\"http://two/foobar.js\"></script></head><body><nav><ul><li hugo-nav=\"section_0\"></li><li hugo-nav=\"section_1\"></li></ul></nav><article>content <a href=\"http://two/foobar\">foobar</a>. Follow up</article><p>This is some text.<br>And some more.</p></body></html>"
func TestStripHTML(t *testing.T) {
type test struct {
input, expected string
}
data := []test{
{"<h1>strip h1 tag <h1>", "strip h1 tag "},
{"<p> strip p tag </p>", " strip p tag "},
{"</br> strip br<br>", " strip br\n"},
{"</br> strip br2<br />", " strip br2\n"},
{"This <strong>is</strong> a\nnewline", "This is a newline"},
{"No Tags", "No Tags"},
{`<p>Summary Next Line.
<figure >
<img src="/not/real" />
</figure>
.
More text here.</p>
<p>Some more text</p>`, "Summary Next Line. . More text here.\nSome more text\n"},
}
for i, d := range data {
output := StripHTML(d.input)
if d.expected != output {
t.Errorf("Test %d failed. Expected %q got %q", i, d.expected, output)
}
}
}
func BenchmarkStripHTML(b *testing.B) {
b.ResetTimer()
for i := 0; i < b.N; i++ {
StripHTML(tstHTMLContent)
}
}
func TestStripEmptyNav(t *testing.T) {
cleaned := stripEmptyNav([]byte("do<nav>\n</nav>\n\nbedobedo"))
assert.Equal(t, []byte("dobedobedo"), cleaned)
}
func TestBytesToHTML(t *testing.T) {
assert.Equal(t, template.HTML("dobedobedo"), BytesToHTML([]byte("dobedobedo")))
}
var benchmarkTruncateString = strings.Repeat("This is a sentence about nothing.", 20)
func BenchmarkTestTruncateWordsToWholeSentence(b *testing.B) {
c := newTestContentSpec()
b.ResetTimer()
for i := 0; i < b.N; i++ {
c.TruncateWordsToWholeSentence(benchmarkTruncateString)
}
}
func BenchmarkTestTruncateWordsToWholeSentenceOld(b *testing.B) {
c := newTestContentSpec()
b.ResetTimer()
for i := 0; i < b.N; i++ {
c.truncateWordsToWholeSentenceOld(benchmarkTruncateString)
}
}
func TestTruncateWordsToWholeSentence(t *testing.T) {
c := newTestContentSpec()
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 {
c.summaryLength = d.max
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) {
c := newTestContentSpec()
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 ", 2, true},
{"Hello 中国", "Hello 中国", 3, false},
{"Hello中国 Good 好的", "Hello中国 Good ", 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 {
c.summaryLength = d.max
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 TestGetHTMLRendererFlags(t *testing.T) {
c := newTestContentSpec()
ctx := &RenderingContext{Cfg: c.cfg, Config: c.NewBlackfriday()}
renderer := c.getHTMLRenderer(blackfriday.HTML_USE_XHTML, ctx)
flags := renderer.GetFlags()
if flags&blackfriday.HTML_USE_XHTML != blackfriday.HTML_USE_XHTML {
t.Errorf("Test flag: %d was not found amongs set flags:%d; Result: %d", blackfriday.HTML_USE_XHTML, flags, flags&blackfriday.HTML_USE_XHTML)
}
}
func TestGetHTMLRendererAllFlags(t *testing.T) {
c := newTestContentSpec()
type data struct {
testFlag int
}
allFlags := []data{
{blackfriday.HTML_USE_XHTML},
{blackfriday.HTML_FOOTNOTE_RETURN_LINKS},
{blackfriday.HTML_USE_SMARTYPANTS},
{blackfriday.HTML_SMARTYPANTS_QUOTES_NBSP},
{blackfriday.HTML_SMARTYPANTS_ANGLED_QUOTES},
{blackfriday.HTML_SMARTYPANTS_FRACTIONS},
{blackfriday.HTML_HREF_TARGET_BLANK},
{blackfriday.HTML_SMARTYPANTS_DASHES},
{blackfriday.HTML_SMARTYPANTS_LATEX_DASHES},
}
defaultFlags := blackfriday.HTML_USE_XHTML
ctx := &RenderingContext{Cfg: c.cfg, Config: c.NewBlackfriday()}
ctx.Config.AngledQuotes = true
ctx.Config.Fractions = true
ctx.Config.HrefTargetBlank = true
ctx.Config.LatexDashes = true
ctx.Config.PlainIDAnchors = true
ctx.Config.SmartDashes = true
ctx.Config.Smartypants = true
ctx.Config.SmartypantsQuotesNBSP = true
renderer := c.getHTMLRenderer(defaultFlags, ctx)
actualFlags := renderer.GetFlags()
var expectedFlags int
//OR-ing flags together...
for _, d := range allFlags {
expectedFlags |= d.testFlag
}
if expectedFlags != actualFlags {
t.Errorf("Expected flags (%d) did not equal actual (%d) flags.", expectedFlags, actualFlags)
}
}
func TestGetHTMLRendererAnchors(t *testing.T) {
c := newTestContentSpec()
ctx := &RenderingContext{Cfg: c.cfg, Config: c.NewBlackfriday()}
ctx.DocumentID = "testid"
ctx.Config.PlainIDAnchors = false
actualRenderer := c.getHTMLRenderer(0, ctx)
headerBuffer := &bytes.Buffer{}
footnoteBuffer := &bytes.Buffer{}
expectedFootnoteHref := []byte("href=\"#fn:testid:href\"")
expectedHeaderID := []byte("<h1 id=\"id:testid\"></h1>\n")
actualRenderer.Header(headerBuffer, func() bool { return true }, 1, "id")
actualRenderer.FootnoteRef(footnoteBuffer, []byte("href"), 1)
if !bytes.Contains(footnoteBuffer.Bytes(), expectedFootnoteHref) {
t.Errorf("Footnote anchor prefix not applied. Actual:%s Expected:%s", footnoteBuffer.String(), expectedFootnoteHref)
}
if !bytes.Equal(headerBuffer.Bytes(), expectedHeaderID) {
t.Errorf("Header Id Postfix not applied. Actual:%s Expected:%s", headerBuffer.String(), expectedHeaderID)
}
}
func TestGetMmarkHTMLRenderer(t *testing.T) {
c := newTestContentSpec()
ctx := &RenderingContext{Cfg: c.cfg, Config: c.NewBlackfriday()}
ctx.DocumentID = "testid"
ctx.Config.PlainIDAnchors = false
actualRenderer := c.getMmarkHTMLRenderer(0, ctx)
headerBuffer := &bytes.Buffer{}
footnoteBuffer := &bytes.Buffer{}
expectedFootnoteHref := []byte("href=\"#fn:testid:href\"")
expectedHeaderID := []byte("<h1 id=\"id\"></h1>")
actualRenderer.FootnoteRef(footnoteBuffer, []byte("href"), 1)
actualRenderer.Header(headerBuffer, func() bool { return true }, 1, "id")
if !bytes.Contains(footnoteBuffer.Bytes(), expectedFootnoteHref) {
t.Errorf("Footnote anchor prefix not applied. Actual:%s Expected:%s", footnoteBuffer.String(), expectedFootnoteHref)
}
if bytes.Equal(headerBuffer.Bytes(), expectedHeaderID) {
t.Errorf("Header Id Postfix applied. Actual:%s Expected:%s", headerBuffer.String(), expectedHeaderID)
}
}
func TestGetMarkdownExtensionsMasksAreRemovedFromExtensions(t *testing.T) {
c := newTestContentSpec()
ctx := &RenderingContext{Cfg: c.cfg, Config: c.NewBlackfriday()}
ctx.Config.Extensions = []string{"headerId"}
ctx.Config.ExtensionsMask = []string{"noIntraEmphasis"}
actualFlags := getMarkdownExtensions(ctx)
if actualFlags&blackfriday.EXTENSION_NO_INTRA_EMPHASIS == blackfriday.EXTENSION_NO_INTRA_EMPHASIS {
t.Errorf("Masked out flag {%v} found amongst returned extensions.", blackfriday.EXTENSION_NO_INTRA_EMPHASIS)
}
}
func TestGetMarkdownExtensionsByDefaultAllExtensionsAreEnabled(t *testing.T) {
type data struct {
testFlag int
}
c := newTestContentSpec()
ctx := &RenderingContext{Cfg: c.cfg, Config: c.NewBlackfriday()}
ctx.Config.Extensions = []string{""}
ctx.Config.ExtensionsMask = []string{""}
allExtensions := []data{
{blackfriday.EXTENSION_NO_INTRA_EMPHASIS},
{blackfriday.EXTENSION_TABLES},
{blackfriday.EXTENSION_FENCED_CODE},
{blackfriday.EXTENSION_AUTOLINK},
{blackfriday.EXTENSION_STRIKETHROUGH},
// {blackfriday.EXTENSION_LAX_HTML_BLOCKS},
{blackfriday.EXTENSION_SPACE_HEADERS},
// {blackfriday.EXTENSION_HARD_LINE_BREAK},
// {blackfriday.EXTENSION_TAB_SIZE_EIGHT},
{blackfriday.EXTENSION_FOOTNOTES},
// {blackfriday.EXTENSION_NO_EMPTY_LINE_BEFORE_BLOCK},
{blackfriday.EXTENSION_HEADER_IDS},
// {blackfriday.EXTENSION_TITLEBLOCK},
{blackfriday.EXTENSION_AUTO_HEADER_IDS},
{blackfriday.EXTENSION_BACKSLASH_LINE_BREAK},
{blackfriday.EXTENSION_DEFINITION_LISTS},
}
actualFlags := getMarkdownExtensions(ctx)
for _, e := range allExtensions {
if actualFlags&e.testFlag != e.testFlag {
t.Errorf("Flag %v was not found in the list of extensions.", e)
}
}
}
func TestGetMarkdownExtensionsAddingFlagsThroughRenderingContext(t *testing.T) {
c := newTestContentSpec()
ctx := &RenderingContext{Cfg: c.cfg, Config: c.NewBlackfriday()}
ctx.Config.Extensions = []string{"definitionLists"}
ctx.Config.ExtensionsMask = []string{""}
actualFlags := getMarkdownExtensions(ctx)
if actualFlags&blackfriday.EXTENSION_DEFINITION_LISTS != blackfriday.EXTENSION_DEFINITION_LISTS {
t.Errorf("Masked out flag {%v} found amongst returned extensions.", blackfriday.EXTENSION_DEFINITION_LISTS)
}
}
func TestGetMarkdownRenderer(t *testing.T) {
c := newTestContentSpec()
ctx := &RenderingContext{Cfg: c.cfg, Config: c.NewBlackfriday()}
ctx.Content = []byte("testContent")
actualRenderedMarkdown := c.markdownRender(ctx)
expectedRenderedMarkdown := []byte("<p>testContent</p>\n")
if !bytes.Equal(actualRenderedMarkdown, expectedRenderedMarkdown) {
t.Errorf("Actual rendered Markdown (%s) did not match expected markdown (%s)", actualRenderedMarkdown, expectedRenderedMarkdown)
}
}
func TestGetMarkdownRendererWithTOC(t *testing.T) {
c := newTestContentSpec()
ctx := &RenderingContext{RenderTOC: true, Cfg: c.cfg, Config: c.NewBlackfriday()}
ctx.Content = []byte("testContent")
actualRenderedMarkdown := c.markdownRender(ctx)
expectedRenderedMarkdown := []byte("<nav>\n</nav>\n\n<p>testContent</p>\n")
if !bytes.Equal(actualRenderedMarkdown, expectedRenderedMarkdown) {
t.Errorf("Actual rendered Markdown (%s) did not match expected markdown (%s)", actualRenderedMarkdown, expectedRenderedMarkdown)
}
}
func TestGetMmarkExtensions(t *testing.T) {
//TODO: This is doing the same just with different marks...
type data struct {
testFlag int
}
c := newTestContentSpec()
ctx := &RenderingContext{Cfg: c.cfg, Config: c.NewBlackfriday()}
ctx.Config.Extensions = []string{"tables"}
ctx.Config.ExtensionsMask = []string{""}
allExtensions := []data{
{mmark.EXTENSION_TABLES},
{mmark.EXTENSION_FENCED_CODE},
{mmark.EXTENSION_AUTOLINK},
{mmark.EXTENSION_SPACE_HEADERS},
{mmark.EXTENSION_CITATION},
{mmark.EXTENSION_TITLEBLOCK_TOML},
{mmark.EXTENSION_HEADER_IDS},
{mmark.EXTENSION_AUTO_HEADER_IDS},
{mmark.EXTENSION_UNIQUE_HEADER_IDS},
{mmark.EXTENSION_FOOTNOTES},
{mmark.EXTENSION_SHORT_REF},
{mmark.EXTENSION_NO_EMPTY_LINE_BEFORE_BLOCK},
{mmark.EXTENSION_INCLUDE},
}
actualFlags := getMmarkExtensions(ctx)
for _, e := range allExtensions {
if actualFlags&e.testFlag != e.testFlag {
t.Errorf("Flag %v was not found in the list of extensions.", e)
}
}
}
func TestMmarkRender(t *testing.T) {
c := newTestContentSpec()
ctx := &RenderingContext{Cfg: c.cfg, Config: c.NewBlackfriday()}
ctx.Content = []byte("testContent")
actualRenderedMarkdown := c.mmarkRender(ctx)
expectedRenderedMarkdown := []byte("<p>testContent</p>\n")
if !bytes.Equal(actualRenderedMarkdown, expectedRenderedMarkdown) {
t.Errorf("Actual rendered Markdown (%s) did not match expected markdown (%s)", actualRenderedMarkdown, expectedRenderedMarkdown)
}
}
func TestExtractTOCNormalContent(t *testing.T) {
content := []byte("<nav>\n<ul>\nTOC<li><a href=\"#")
actualTocLessContent, actualToc := 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 := 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 := 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 := 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 := TotalWords(totalWordsBenchmarkString)
if wordCount != 400 {
b.Fatal("Wordcount error")
}
}
}
func BenchmarkTotalWordsOld(b *testing.B) {
b.ResetTimer()
for i := 0; i < b.N; i++ {
wordCount := totalWordsOld(totalWordsBenchmarkString)
if wordCount != 400 {
b.Fatal("Wordcount error")
}
}
}