hugo/transform/chain_test.go

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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 transform
import (
"bytes"
"path/filepath"
"strings"
"testing"
"github.com/spf13/hugo/helpers"
"github.com/stretchr/testify/assert"
)
const (
h5JsContentDoubleQuote = "<!DOCTYPE html><html><head><script src=\"foobar.js\"></script><script src=\"/barfoo.js\"></script></head><body><nav><h1>title</h1></nav><article>content <a href=\"foobar\">foobar</a>. <a href=\"/foobar\">Follow up</a></article></body></html>"
h5JsContentSingleQuote = "<!DOCTYPE html><html><head><script src='foobar.js'></script><script src='/barfoo.js'></script></head><body><nav><h1>title</h1></nav><article>content <a href='foobar'>foobar</a>. <a href='/foobar'>Follow up</a></article></body></html>"
h5JsContentAbsURL = "<!DOCTYPE html><html><head><script src=\"http://user@host:10234/foobar.js\"></script></head><body><nav><h1>title</h1></nav><article>content <a href=\"https://host/foobar\">foobar</a>. Follow up</article></body></html>"
h5JsContentAbsURLSchemaless = "<!DOCTYPE html><html><head><script src=\"//host/foobar.js\"></script><script src='//host2/barfoo.js'></head><body><nav><h1>title</h1></nav><article>content <a href=\"//host/foobar\">foobar</a>. <a href='//host2/foobar'>Follow up</a></article></body></html>"
corectOutputSrcHrefDq = "<!DOCTYPE html><html><head><script src=\"foobar.js\"></script><script src=\"http://base/barfoo.js\"></script></head><body><nav><h1>title</h1></nav><article>content <a href=\"foobar\">foobar</a>. <a href=\"http://base/foobar\">Follow up</a></article></body></html>"
corectOutputSrcHrefSq = "<!DOCTYPE html><html><head><script src='foobar.js'></script><script src='http://base/barfoo.js'></script></head><body><nav><h1>title</h1></nav><article>content <a href='foobar'>foobar</a>. <a href='http://base/foobar'>Follow up</a></article></body></html>"
h5XMLXontentAbsURL = "<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\" ?><feed xmlns=\"http://www.w3.org/2005/Atom\"><entry><content type=\"html\">&lt;p&gt;&lt;a href=&#34;/foobar&#34;&gt;foobar&lt;/a&gt;&lt;/p&gt; &lt;p&gt;A video: &lt;iframe src=&#39;/foo&#39;&gt;&lt;/iframe&gt;&lt;/p&gt;</content></entry></feed>"
correctOutputSrcHrefInXML = "<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\" ?><feed xmlns=\"http://www.w3.org/2005/Atom\"><entry><content type=\"html\">&lt;p&gt;&lt;a href=&#34;http://base/foobar&#34;&gt;foobar&lt;/a&gt;&lt;/p&gt; &lt;p&gt;A video: &lt;iframe src=&#39;http://base/foo&#39;&gt;&lt;/iframe&gt;&lt;/p&gt;</content></entry></feed>"
h5XMLContentGuarded = "<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\" ?><feed xmlns=\"http://www.w3.org/2005/Atom\"><entry><content type=\"html\">&lt;p&gt;&lt;a href=&#34;//foobar&#34;&gt;foobar&lt;/a&gt;&lt;/p&gt; &lt;p&gt;A video: &lt;iframe src=&#39;//foo&#39;&gt;&lt;/iframe&gt;&lt;/p&gt;</content></entry></feed>"
)
const (
// additional sanity tests for replacements testing
replace1 = "No replacements."
replace2 = "ᚠᛇᚻ ᛒᛦᚦ ᚠᚱᚩᚠᚢᚱ\nᚠᚱᚪ ᚷᛖᚻᚹᛦᛚᚳᚢᛗ"
replace3 = `End of file: src="/`
replace4 = `End of file: srcset="/`
replace5 = `Srcsett with no closing quote: srcset="/img/small.jpg do be do be do.`
// Issue: 816, schemaless links combined with others
replaceSchemalessHTML = `Pre. src='//schemaless' src='/normal' <a href="//schemaless">Schemaless</a>. <a href="/normal">normal</a>. Post.`
replaceSchemalessHTMLCorrect = `Pre. src='//schemaless' src='http://base/normal' <a href="//schemaless">Schemaless</a>. <a href="http://base/normal">normal</a>. Post.`
replaceSchemalessXML = `Pre. src=&#39;//schemaless&#39; src=&#39;/normal&#39; <a href=&#39;//schemaless&#39;>Schemaless</a>. <a href=&#39;/normal&#39;>normal</a>. Post.`
replaceSchemalessXMLCorrect = `Pre. src=&#39;//schemaless&#39; src=&#39;http://base/normal&#39; <a href=&#39;//schemaless&#39;>Schemaless</a>. <a href=&#39;http://base/normal&#39;>normal</a>. Post.`
)
const (
// srcset=
srcsetBasic = `Pre. <img srcset="/img/small.jpg 200w, /img/medium.jpg 300w, /img/big.jpg 700w" alt="text" src="/img/foo.jpg">`
srcsetBasicCorrect = `Pre. <img srcset="http://base/img/small.jpg 200w, http://base/img/medium.jpg 300w, http://base/img/big.jpg 700w" alt="text" src="http://base/img/foo.jpg">`
srcsetSingleQuote = `Pre. <img srcset='/img/small.jpg 200w, /img/big.jpg 700w' alt="text" src="/img/foo.jpg"> POST.`
srcsetSingleQuoteCorrect = `Pre. <img srcset='http://base/img/small.jpg 200w, http://base/img/big.jpg 700w' alt="text" src="http://base/img/foo.jpg"> POST.`
srcsetXMLBasic = `Pre. <img srcset=&#34;/img/small.jpg 200w, /img/big.jpg 700w&#34; alt=&#34;text&#34; src=&#34;/img/foo.jpg&#34;>`
srcsetXMLBasicCorrect = `Pre. <img srcset=&#34;http://base/img/small.jpg 200w, http://base/img/big.jpg 700w&#34; alt=&#34;text&#34; src=&#34;http://base/img/foo.jpg&#34;>`
srcsetXMLSingleQuote = `Pre. <img srcset=&#34;/img/small.jpg 200w, /img/big.jpg 700w&#34; alt=&#34;text&#34; src=&#34;/img/foo.jpg&#34;>`
srcsetXMLSingleQuoteCorrect = `Pre. <img srcset=&#34;http://base/img/small.jpg 200w, http://base/img/big.jpg 700w&#34; alt=&#34;text&#34; src=&#34;http://base/img/foo.jpg&#34;>`
srcsetVariations = `Pre.
Missing start quote: <img srcset=/img/small.jpg 200w, /img/big.jpg 700w" alt="text"> src='/img/foo.jpg'> FOO.
<img srcset='/img.jpg'>
schemaless: <img srcset='//img.jpg' src='//basic.jpg'>
schemaless2: <img srcset="//img.jpg" src="//basic.jpg2> POST
`
)
const (
srcsetVariationsCorrect = `Pre.
Missing start quote: <img srcset=/img/small.jpg 200w, /img/big.jpg 700w" alt="text"> src='http://base/img/foo.jpg'> FOO.
<img srcset='http://base/img.jpg'>
schemaless: <img srcset='//img.jpg' src='//basic.jpg'>
schemaless2: <img srcset="//img.jpg" src="//basic.jpg2> POST
`
srcsetXMLVariations = `Pre.
Missing start quote: &lt;img srcset=/img/small.jpg 200w /img/big.jpg 700w&quot; alt=&quot;text&quot;&gt; src=&#39;/img/foo.jpg&#39;&gt; FOO.
&lt;img srcset=&#39;/img.jpg&#39;&gt;
schemaless: &lt;img srcset=&#39;//img.jpg&#39; src=&#39;//basic.jpg&#39;&gt;
schemaless2: &lt;img srcset=&quot;//img.jpg&quot; src=&quot;//basic.jpg2&gt; POST
`
srcsetXMLVariationsCorrect = `Pre.
Missing start quote: &lt;img srcset=/img/small.jpg 200w /img/big.jpg 700w&quot; alt=&quot;text&quot;&gt; src=&#39;http://base/img/foo.jpg&#39;&gt; FOO.
&lt;img srcset=&#39;http://base/img.jpg&#39;&gt;
schemaless: &lt;img srcset=&#39;//img.jpg&#39; src=&#39;//basic.jpg&#39;&gt;
schemaless2: &lt;img srcset=&quot;//img.jpg&quot; src=&quot;//basic.jpg2&gt; POST
`
relPathVariations = `PRE. a href="/img/small.jpg" POST.`
relPathVariationsCorrect = `PRE. a href="../../img/small.jpg" POST.`
testBaseURL = "http://base/"
)
var (
absURLlBenchTests = []test{
{h5JsContentDoubleQuote, corectOutputSrcHrefDq},
{h5JsContentSingleQuote, corectOutputSrcHrefSq},
{h5JsContentAbsURL, h5JsContentAbsURL},
{h5JsContentAbsURLSchemaless, h5JsContentAbsURLSchemaless},
}
xmlAbsURLBenchTests = []test{
{h5XMLXontentAbsURL, correctOutputSrcHrefInXML},
{h5XMLContentGuarded, h5XMLContentGuarded},
}
sanityTests = []test{{replace1, replace1}, {replace2, replace2}, {replace3, replace3}, {replace3, replace3}, {replace5, replace5}}
extraTestsHTML = []test{{replaceSchemalessHTML, replaceSchemalessHTMLCorrect}}
absURLTests = append(absURLlBenchTests, append(sanityTests, extraTestsHTML...)...)
extraTestsXML = []test{{replaceSchemalessXML, replaceSchemalessXMLCorrect}}
xmlAbsURLTests = append(xmlAbsURLBenchTests, append(sanityTests, extraTestsXML...)...)
srcsetTests = []test{{srcsetBasic, srcsetBasicCorrect}, {srcsetSingleQuote, srcsetSingleQuoteCorrect}, {srcsetVariations, srcsetVariationsCorrect}}
srcsetXMLTests = []test{
{srcsetXMLBasic, srcsetXMLBasicCorrect},
{srcsetXMLSingleQuote, srcsetXMLSingleQuoteCorrect},
{srcsetXMLVariations, srcsetXMLVariationsCorrect}}
relurlTests = []test{{relPathVariations, relPathVariationsCorrect}}
)
func TestChainZeroTransformers(t *testing.T) {
tr := NewChain()
in := new(bytes.Buffer)
out := new(bytes.Buffer)
if err := tr.Apply(in, out, []byte("")); err != nil {
t.Errorf("A zero transformer chain returned an error.")
}
}
func TestChaingMultipleTransformers(t *testing.T) {
f1 := func(ct contentTransformer) {
ct.Write(bytes.Replace(ct.Content(), []byte("f1"), []byte("f1r"), -1))
}
f2 := func(ct contentTransformer) {
ct.Write(bytes.Replace(ct.Content(), []byte("f2"), []byte("f2r"), -1))
}
f3 := func(ct contentTransformer) {
ct.Write(bytes.Replace(ct.Content(), []byte("f3"), []byte("f3r"), -1))
}
f4 := func(ct contentTransformer) {
ct.Write(bytes.Replace(ct.Content(), []byte("f4"), []byte("f4r"), -1))
}
tr := NewChain(f1, f2, f3, f4)
out := new(bytes.Buffer)
if err := tr.Apply(out, strings.NewReader("Test: f4 f3 f1 f2 f1 The End."), []byte("")); err != nil {
t.Errorf("Multi transformer chain returned an error: %s", err)
}
expected := "Test: f4r f3r f1r f2r f1r The End."
if string(out.Bytes()) != expected {
t.Errorf("Expected %s got %s", expected, string(out.Bytes()))
}
}
func BenchmarkAbsURL(b *testing.B) {
tr := NewChain(AbsURL)
b.ResetTimer()
for i := 0; i < b.N; i++ {
apply(b.Errorf, tr, absURLlBenchTests)
}
}
func BenchmarkAbsURLSrcset(b *testing.B) {
tr := NewChain(AbsURL)
b.ResetTimer()
for i := 0; i < b.N; i++ {
apply(b.Errorf, tr, srcsetTests)
}
}
func BenchmarkXMLAbsURLSrcset(b *testing.B) {
tr := NewChain(AbsURLInXML)
b.ResetTimer()
for i := 0; i < b.N; i++ {
apply(b.Errorf, tr, srcsetXMLTests)
}
}
func TestAbsURL(t *testing.T) {
tr := NewChain(AbsURL)
apply(t.Errorf, tr, absURLTests)
}
func TestRelativeURL(t *testing.T) {
tr := NewChain(AbsURL)
applyWithPath(t.Errorf, tr, relurlTests, helpers.GetDottedRelativePath(filepath.FromSlash("/post/sub/")))
}
func TestAbsURLSrcSet(t *testing.T) {
tr := NewChain(AbsURL)
apply(t.Errorf, tr, srcsetTests)
}
func TestAbsXMLURLSrcSet(t *testing.T) {
tr := NewChain(AbsURLInXML)
apply(t.Errorf, tr, srcsetXMLTests)
}
func BenchmarkXMLAbsURL(b *testing.B) {
tr := NewChain(AbsURLInXML)
b.ResetTimer()
for i := 0; i < b.N; i++ {
apply(b.Errorf, tr, xmlAbsURLBenchTests)
}
}
func TestXMLAbsURL(t *testing.T) {
tr := NewChain(AbsURLInXML)
apply(t.Errorf, tr, xmlAbsURLTests)
}
func TestNewEmptyTransforms(t *testing.T) {
transforms := NewEmptyTransforms()
assert.Equal(t, 20, cap(transforms))
}
type errorf func(string, ...interface{})
func applyWithPath(ef errorf, tr chain, tests []test, path string) {
for _, test := range tests {
out := new(bytes.Buffer)
var err error
err = tr.Apply(out, strings.NewReader(test.content), []byte(path))
if err != nil {
ef("Unexpected error: %s", err)
}
if test.expected != string(out.Bytes()) {
ef("Expected:\n%s\nGot:\n%s", test.expected, string(out.Bytes()))
}
}
}
func apply(ef errorf, tr chain, tests []test) {
applyWithPath(ef, tr, tests, testBaseURL)
}
type test struct {
content string
expected string
}