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gitea/modules/markup/markdown/markdown_test.go

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// Copyright 2017 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package markdown_test
import (
"context"
"os"
"strings"
"testing"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/markup"
. "code.gitea.io/gitea/modules/markup/markdown"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"
"github.com/stretchr/testify/assert"
)
const (
AppURL = "http://localhost:3000/"
Repo = "gogits/gogs"
AppSubURL = AppURL + Repo + "/"
)
// these values should match the Repo const above
var localMetas = map[string]string{
"user": "gogits",
"repo": "gogs",
"repoPath": "../../../tests/gitea-repositories-meta/user13/repo11.git/",
}
func TestMain(m *testing.M) {
setting.InitProviderAllowEmpty()
setting.LoadCommonSettings()
if err := git.InitSimple(context.Background()); err != nil {
log.Fatal("git init failed, err: %v", err)
}
markup.Init(&markup.ProcessorHelper{
IsUsernameMentionable: func(ctx context.Context, username string) bool {
return username == "r-lyeh"
},
})
os.Exit(m.Run())
}
func TestRender_StandardLinks(t *testing.T) {
setting.AppURL = AppURL
setting.AppSubURL = AppSubURL
test := func(input, expected, expectedWiki string) {
buffer, err := RenderString(&markup.RenderContext{
URLPrefix: setting.AppSubURL,
}, input)
assert.NoError(t, err)
assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(buffer))
buffer, err = RenderString(&markup.RenderContext{
URLPrefix: setting.AppSubURL,
IsWiki: true,
}, input)
assert.NoError(t, err)
assert.Equal(t, strings.TrimSpace(expectedWiki), strings.TrimSpace(buffer))
}
googleRendered := `<p><a href="https://google.com/" rel="nofollow">https://google.com/</a></p>`
test("<https://google.com/>", googleRendered, googleRendered)
lnk := util.URLJoin(AppSubURL, "WikiPage")
lnkWiki := util.URLJoin(AppSubURL, "wiki", "WikiPage")
test("[WikiPage](WikiPage)",
`<p><a href="`+lnk+`" rel="nofollow">WikiPage</a></p>`,
`<p><a href="`+lnkWiki+`" rel="nofollow">WikiPage</a></p>`)
}
func TestRender_Images(t *testing.T) {
setting.AppURL = AppURL
setting.AppSubURL = AppSubURL
test := func(input, expected string) {
buffer, err := RenderString(&markup.RenderContext{
URLPrefix: setting.AppSubURL,
}, input)
assert.NoError(t, err)
assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(buffer))
}
url := "../../.images/src/02/train.jpg"
title := "Train"
href := "https://gitea.io"
result := util.URLJoin(AppSubURL, url)
// hint: With Markdown v2.5.2, there is a new syntax: [link](URL){:target="_blank"} , but we do not support it now
test(
"!["+title+"]("+url+")",
`<p><a href="`+result+`" target="_blank" rel="nofollow noopener"><img src="`+result+`" alt="`+title+`"/></a></p>`)
test(
"[["+title+"|"+url+"]]",
`<p><a href="`+result+`" rel="nofollow"><img src="`+result+`" title="`+title+`" alt="`+title+`"/></a></p>`)
test(
"[!["+title+"]("+url+")]("+href+")",
`<p><a href="`+href+`" rel="nofollow"><img src="`+result+`" alt="`+title+`"/></a></p>`)
url = "/../../.images/src/02/train.jpg"
test(
"!["+title+"]("+url+")",
`<p><a href="`+result+`" target="_blank" rel="nofollow noopener"><img src="`+result+`" alt="`+title+`"/></a></p>`)
test(
"[["+title+"|"+url+"]]",
`<p><a href="`+result+`" rel="nofollow"><img src="`+result+`" title="`+title+`" alt="`+title+`"/></a></p>`)
test(
"[!["+title+"]("+url+")]("+href+")",
`<p><a href="`+href+`" rel="nofollow"><img src="`+result+`" alt="`+title+`"/></a></p>`)
}
func testAnswers(baseURLContent, baseURLImages string) []string {
return []string{
`<p>Wiki! Enjoy :)</p>
<ul>
<li><a href="` + baseURLContent + `/Links" rel="nofollow">Links, Language bindings, Engine bindings</a></li>
<li><a href="` + baseURLContent + `/Tips" rel="nofollow">Tips</a></li>
</ul>
<p>See commit <a href="http://localhost:3000/gogits/gogs/commit/65f1bf27bc" rel="nofollow"><code>65f1bf27bc</code></a></p>
<p>Ideas and codes</p>
<ul>
<li>Bezier widget (by <a href="` + AppURL + `r-lyeh" rel="nofollow">@r-lyeh</a>) <a href="http://localhost:3000/ocornut/imgui/issues/786" class="ref-issue" rel="nofollow">ocornut/imgui#786</a></li>
<li>Bezier widget (by <a href="` + AppURL + `r-lyeh" rel="nofollow">@r-lyeh</a>) <a href="http://localhost:3000/gogits/gogs/issues/786" class="ref-issue" rel="nofollow">#786</a></li>
<li>Node graph editors <a href="https://github.com/ocornut/imgui/issues/306" rel="nofollow">https://github.com/ocornut/imgui/issues/306</a></li>
<li><a href="` + baseURLContent + `/memory_editor_example" rel="nofollow">Memory Editor</a></li>
<li><a href="` + baseURLContent + `/plot_var_example" rel="nofollow">Plot var helper</a></li>
</ul>
`,
`<h2 id="user-content-what-is-wine-staging">What is Wine Staging?</h2>
<p><strong>Wine Staging</strong> on website <a href="http://wine-staging.com" rel="nofollow">wine-staging.com</a>.</p>
<h2 id="user-content-quick-links">Quick Links</h2>
<p>Here are some links to the most important topics. You can find the full list of pages at the sidebar.</p>
<table>
<thead>
<tr>
<th><a href="` + baseURLImages + `/images/icon-install.png" rel="nofollow"><img src="` + baseURLImages + `/images/icon-install.png" title="icon-install.png" alt="images/icon-install.png"/></a></th>
<th><a href="` + baseURLContent + `/Installation" rel="nofollow">Installation</a></th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="` + baseURLImages + `/images/icon-usage.png" rel="nofollow"><img src="` + baseURLImages + `/images/icon-usage.png" title="icon-usage.png" alt="images/icon-usage.png"/></a></td>
<td><a href="` + baseURLContent + `/Usage" rel="nofollow">Usage</a></td>
</tr>
</tbody>
</table>
`,
`<p><a href="http://www.excelsiorjet.com/" rel="nofollow">Excelsior JET</a> allows you to create native executables for Windows, Linux and Mac OS X.</p>
<ol>
<li><a href="https://github.com/libgdx/libgdx/wiki/Gradle-on-the-Commandline#packaging-for-the-desktop" rel="nofollow">Package your libGDX application</a><br/>
<a href="` + baseURLImages + `/images/1.png" rel="nofollow"><img src="` + baseURLImages + `/images/1.png" title="1.png" alt="images/1.png"/></a></li>
<li>Perform a test run by hitting the Run! button.<br/>
<a href="` + baseURLImages + `/images/2.png" rel="nofollow"><img src="` + baseURLImages + `/images/2.png" title="2.png" alt="images/2.png"/></a></li>
</ol>
<h2 id="user-content-custom-id">More tests</h2>
<p>(from <a href="https://www.markdownguide.org/extended-syntax/" rel="nofollow">https://www.markdownguide.org/extended-syntax/</a>)</p>
<h3 id="user-content-checkboxes">Checkboxes</h3>
<ul>
<li class="task-list-item"><input type="checkbox" disabled="" data-source-position="434"/>unchecked</li>
<li class="task-list-item"><input type="checkbox" disabled="" data-source-position="450" checked=""/>checked</li>
<li class="task-list-item"><input type="checkbox" disabled="" data-source-position="464"/>still unchecked</li>
</ul>
<h3 id="user-content-definition-list">Definition list</h3>
<dl>
<dt>First Term</dt>
<dd>This is the definition of the first term.</dd>
<dt>Second Term</dt>
<dd>This is one definition of the second term.</dd>
<dd>This is another definition of the second term.</dd>
</dl>
<h3 id="user-content-footnotes">Footnotes</h3>
<p>Here is a simple footnote,<sup id="fnref:user-content-1"><a href="#fn:user-content-1" rel="nofollow">1</a></sup> and here is a longer one.<sup id="fnref:user-content-bignote"><a href="#fn:user-content-bignote" rel="nofollow">2</a></sup></p>
<div>
<hr/>
<ol>
<li id="fn:user-content-1">
<p>This is the first footnote. <a href="#fnref:user-content-1" rel="nofollow">↩︎</a></p>
</li>
<li id="fn:user-content-bignote">
<p>Here is one with multiple paragraphs and code.</p>
<p>Indent paragraphs to include them in the footnote.</p>
<p><code>{ my code }</code></p>
<p>Add as many paragraphs as you like. <a href="#fnref:user-content-bignote" rel="nofollow">↩︎</a></p>
</li>
</ol>
</div>
`, `<ul>
<li class="task-list-item"><input type="checkbox" disabled="" data-source-position="3"/> If you want to rebase/retry this PR, click this checkbox.</li>
</ul>
<hr/>
<p>This PR has been generated by <a href="https://github.com/renovatebot/renovate" rel="nofollow">Renovate Bot</a>.</p>
`,
}
}
// Test cases without ambiguous links
var sameCases = []string{
// dear imgui wiki markdown extract: special wiki syntax
`Wiki! Enjoy :)
- [[Links, Language bindings, Engine bindings|Links]]
- [[Tips]]
See commit 65f1bf27bc
Ideas and codes
- Bezier widget (by @r-lyeh) ` + AppURL + `ocornut/imgui/issues/786
- Bezier widget (by @r-lyeh) ` + AppURL + `gogits/gogs/issues/786
- Node graph editors https://github.com/ocornut/imgui/issues/306
- [[Memory Editor|memory_editor_example]]
- [[Plot var helper|plot_var_example]]`,
// wine-staging wiki home extract: tables, special wiki syntax, images
`## What is Wine Staging?
**Wine Staging** on website [wine-staging.com](http://wine-staging.com).
## Quick Links
Here are some links to the most important topics. You can find the full list of pages at the sidebar.
| [[images/icon-install.png]] | [[Installation]] |
|--------------------------------|----------------------------------------------------------|
| [[images/icon-usage.png]] | [[Usage]] |
`,
// libgdx wiki page: inline images with special syntax
`[Excelsior JET](http://www.excelsiorjet.com/) allows you to create native executables for Windows, Linux and Mac OS X.
1. [Package your libGDX application](https://github.com/libgdx/libgdx/wiki/Gradle-on-the-Commandline#packaging-for-the-desktop)
[[images/1.png]]
2. Perform a test run by hitting the Run! button.
[[images/2.png]]
## More tests {#custom-id}
(from https://www.markdownguide.org/extended-syntax/)
### Checkboxes
- [ ] unchecked
- [x] checked
- [ ] still unchecked
### Definition list
First Term
: This is the definition of the first term.
Second Term
: This is one definition of the second term.
: This is another definition of the second term.
### Footnotes
Here is a simple footnote,[^1] and here is a longer one.[^bignote]
[^1]: This is the first footnote.
[^bignote]: Here is one with multiple paragraphs and code.
Indent paragraphs to include them in the footnote.
` + "`{ my code }`" + `
Add as many paragraphs as you like.
`,
`
- [ ] <!-- rebase-check --> If you want to rebase/retry this PR, click this checkbox.
---
This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
<!-- test-comment -->`,
}
func TestTotal_RenderWiki(t *testing.T) {
setting.AppURL = AppURL
setting.AppSubURL = AppSubURL
answers := testAnswers(util.URLJoin(AppSubURL, "wiki/"), util.URLJoin(AppSubURL, "wiki", "raw/"))
for i := 0; i < len(sameCases); i++ {
line, err := RenderString(&markup.RenderContext{
Ctx: git.DefaultContext,
URLPrefix: AppSubURL,
Metas: localMetas,
IsWiki: true,
}, sameCases[i])
assert.NoError(t, err)
assert.Equal(t, answers[i], line)
}
testCases := []string{
// Guard wiki sidebar: special syntax
`[[Guardfile-DSL / Configuring-Guard|Guardfile-DSL---Configuring-Guard]]`,
// rendered
`<p><a href="` + AppSubURL + `wiki/Guardfile-DSL---Configuring-Guard" rel="nofollow">Guardfile-DSL / Configuring-Guard</a></p>
`,
// special syntax
`[[Name|Link]]`,
// rendered
`<p><a href="` + AppSubURL + `wiki/Link" rel="nofollow">Name</a></p>
`,
}
for i := 0; i < len(testCases); i += 2 {
line, err := RenderString(&markup.RenderContext{
URLPrefix: AppSubURL,
IsWiki: true,
}, testCases[i])
assert.NoError(t, err)
assert.Equal(t, testCases[i+1], line)
}
}
func TestTotal_RenderString(t *testing.T) {
setting.AppURL = AppURL
setting.AppSubURL = AppSubURL
answers := testAnswers(util.URLJoin(AppSubURL, "src", "master/"), util.URLJoin(AppSubURL, "raw", "master/"))
for i := 0; i < len(sameCases); i++ {
line, err := RenderString(&markup.RenderContext{
Ctx: git.DefaultContext,
URLPrefix: util.URLJoin(AppSubURL, "src", "master/"),
Metas: localMetas,
}, sameCases[i])
assert.NoError(t, err)
assert.Equal(t, answers[i], line)
}
testCases := []string{}
for i := 0; i < len(testCases); i += 2 {
line, err := RenderString(&markup.RenderContext{
URLPrefix: AppSubURL,
}, testCases[i])
assert.NoError(t, err)
assert.Equal(t, testCases[i+1], line)
}
}
func TestRender_RenderParagraphs(t *testing.T) {
test := func(t *testing.T, str string, cnt int) {
res, err := RenderRawString(&markup.RenderContext{}, str)
assert.NoError(t, err)
assert.Equal(t, cnt, strings.Count(res, "<p"), "Rendered result for unix should have %d paragraph(s) but has %d:\n%s\n", cnt, strings.Count(res, "<p"), res)
mac := strings.ReplaceAll(str, "\n", "\r")
res, err = RenderRawString(&markup.RenderContext{}, mac)
assert.NoError(t, err)
assert.Equal(t, cnt, strings.Count(res, "<p"), "Rendered result for mac should have %d paragraph(s) but has %d:\n%s\n", cnt, strings.Count(res, "<p"), res)
dos := strings.ReplaceAll(str, "\n", "\r\n")
res, err = RenderRawString(&markup.RenderContext{}, dos)
assert.NoError(t, err)
assert.Equal(t, cnt, strings.Count(res, "<p"), "Rendered result for windows should have %d paragraph(s) but has %d:\n%s\n", cnt, strings.Count(res, "<p"), res)
}
test(t, "\nOne\nTwo\nThree", 1)
test(t, "\n\nOne\nTwo\nThree", 1)
test(t, "\n\nOne\nTwo\nThree\n\n\n", 1)
test(t, "A\n\nB\nC\n", 2)
test(t, "A\n\n\nB\nC\n", 2)
}
func TestMarkdownRenderRaw(t *testing.T) {
testcases := [][]byte{
{ // clusterfuzz_testcase_minimized_fuzz_markdown_render_raw_6267570554535936
0x2a, 0x20, 0x2d, 0x0a, 0x09, 0x20, 0x60, 0x5b, 0x0a, 0x09, 0x20, 0x60,
0x5b,
},
{ // clusterfuzz_testcase_minimized_fuzz_markdown_render_raw_6278827345051648
0x2d, 0x20, 0x2d, 0x0d, 0x09, 0x60, 0x0d, 0x09, 0x60,
},
{ // clusterfuzz_testcase_minimized_fuzz_markdown_render_raw_6016973788020736[] = {
0x7b, 0x63, 0x6c, 0x61, 0x73, 0x73, 0x3d, 0x35, 0x7d, 0x0a, 0x3d,
},
}
for _, testcase := range testcases {
log.Info("Test markdown render error with fuzzy data: %x, the following errors can be recovered", testcase)
_, err := RenderRawString(&markup.RenderContext{}, string(testcase))
assert.NoError(t, err)
}
}
func TestRenderSiblingImages_Issue12925(t *testing.T) {
testcase := `![image1](/image1)
![image2](/image2)
`
expected := `<p><a href="/image1" target="_blank" rel="nofollow noopener"><img src="/image1" alt="image1"></a><br>
<a href="/image2" target="_blank" rel="nofollow noopener"><img src="/image2" alt="image2"></a></p>
`
res, err := RenderRawString(&markup.RenderContext{}, testcase)
assert.NoError(t, err)
assert.Equal(t, expected, res)
}
func TestRenderEmojiInLinks_Issue12331(t *testing.T) {
testcase := `[Link with emoji :moon: in text](https://gitea.io)`
expected := `<p><a href="https://gitea.io" rel="nofollow">Link with emoji <span class="emoji" aria-label="waxing gibbous moon">🌔</span> in text</a></p>
`
res, err := RenderString(&markup.RenderContext{}, testcase)
assert.NoError(t, err)
assert.Equal(t, expected, res)
}
func TestColorPreview(t *testing.T) {
const nl = "\n"
positiveTests := []struct {
testcase string
expected string
}{
{ // hex
"`#FF0000`",
`<p><code>#FF0000<span class="color-preview" style="background-color: #FF0000"></span></code></p>` + nl,
},
{ // rgb
"`rgb(16, 32, 64)`",
`<p><code>rgb(16, 32, 64)<span class="color-preview" style="background-color: rgb(16, 32, 64)"></span></code></p>` + nl,
},
{ // short hex
"This is the color white `#000`",
`<p>This is the color white <code>#000<span class="color-preview" style="background-color: #000"></span></code></p>` + nl,
},
{ // hsl
"HSL stands for hue, saturation, and lightness. An example: `hsl(0, 100%, 50%)`.",
`<p>HSL stands for hue, saturation, and lightness. An example: <code>hsl(0, 100%, 50%)<span class="color-preview" style="background-color: hsl(0, 100%, 50%)"></span></code>.</p>` + nl,
},
{ // uppercase hsl
"HSL stands for hue, saturation, and lightness. An example: `HSL(0, 100%, 50%)`.",
`<p>HSL stands for hue, saturation, and lightness. An example: <code>HSL(0, 100%, 50%)<span class="color-preview" style="background-color: HSL(0, 100%, 50%)"></span></code>.</p>` + nl,
},
}
for _, test := range positiveTests {
res, err := RenderString(&markup.RenderContext{}, test.testcase)
assert.NoError(t, err, "Unexpected error in testcase: %q", test.testcase)
assert.Equal(t, test.expected, res, "Unexpected result in testcase %q", test.testcase)
}
negativeTests := []string{
// not a color code
"`FF0000`",
// inside a code block
"```javascript" + nl + `const red = "#FF0000";` + nl + "```",
// no backticks
"rgb(166, 32, 64)",
// typo
"`hsI(0, 100%, 50%)`",
// looks like a color but not really
"`hsl(40, 60, 80)`",
}
for _, test := range negativeTests {
res, err := RenderString(&markup.RenderContext{}, test)
assert.NoError(t, err, "Unexpected error in testcase: %q", test)
assert.NotContains(t, res, `<span class="color-preview" style="background-color: `, "Unexpected result in testcase %q", test)
}
}
func TestMathBlock(t *testing.T) {
const nl = "\n"
testcases := []struct {
testcase string
expected string
}{
{
"$a$",
`<p><code class="language-math is-loading">a</code></p>` + nl,
},
{
"$ a $",
`<p><code class="language-math is-loading">a</code></p>` + nl,
},
{
"$a$ $b$",
`<p><code class="language-math is-loading">a</code> <code class="language-math is-loading">b</code></p>` + nl,
},
{
`\(a\) \(b\)`,
`<p><code class="language-math is-loading">a</code> <code class="language-math is-loading">b</code></p>` + nl,
},
{
`$a a$b b$`,
`<p><code class="language-math is-loading">a a$b b</code></p>` + nl,
},
{
`a a$b b`,
`<p>a a$b b</p>` + nl,
},
{
`a$b $a a$b b$`,
`<p>a$b <code class="language-math is-loading">a a$b b</code></p>` + nl,
},
{
"$$a$$",
`<pre class="code-block is-loading"><code class="chroma language-math display">a</code></pre>` + nl,
},
}
for _, test := range testcases {
res, err := RenderString(&markup.RenderContext{}, test.testcase)
assert.NoError(t, err, "Unexpected error in testcase: %q", test.testcase)
assert.Equal(t, test.expected, res, "Unexpected result in testcase %q", test.testcase)
}
}
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