gitlab-org--gitlab-foss/spec/features/markdown/copy_as_gfm_spec.rb
2019-02-06 12:58:29 +00:00

896 lines
26 KiB
Ruby
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

require 'spec_helper'
describe 'Copy as GFM', :js do
include MarkupHelper
include RepoHelpers
include ActionView::Helpers::JavaScriptHelper
before do
sign_in(create(:admin))
end
describe 'Copying rendered GFM' do
before do
@feat = MarkdownFeature.new
# `markdown` helper expects a `@project` variable
@project = @feat.project
visit project_issue_path(@project, @feat.issue)
end
# The filters referenced in lib/banzai/pipeline/gfm_pipeline.rb transform GitLab Flavored Markdown (GFM) to HTML.
# The nodes and marks referenced in app/assets/javascripts/behaviors/markdown/editor_extensions.js consequently transform that same HTML to GFM.
# To make sure these filters and nodes/marks are properly aligned, this spec tests the GFM-to-HTML-to-GFM cycle
# by verifying (`html_to_gfm(gfm_to_html(gfm)) == gfm`) for a number of examples of GFM for every filter, using the `verify` helper.
# These are all in a single `it` for performance reasons.
it 'works', :aggregate_failures do
verify(
'nesting',
'> 1. [x] **[$`2 + 2`$ {-=-}{+=+} 2^2 ~~:thumbsup:~~](http://google.com)**'
)
verify(
'a real world example from the gitlab-ce README',
<<~GFM
# GitLab
[![Build status](https://gitlab.com/gitlab-org/gitlab-ce/badges/master/build.svg)](https://gitlab.com/gitlab-org/gitlab-ce/commits/master)
[![CE coverage report](https://gitlab.com/gitlab-org/gitlab-ce/badges/master/coverage.svg?job=coverage)](https://gitlab-org.gitlab.io/gitlab-ce/coverage-ruby)
[![Code Climate](https://codeclimate.com/github/gitlabhq/gitlabhq.svg)](https://codeclimate.com/github/gitlabhq/gitlabhq)
[![Core Infrastructure Initiative Best Practices](https://bestpractices.coreinfrastructure.org/projects/42/badge)](https://bestpractices.coreinfrastructure.org/projects/42)
## Canonical source
The canonical source of GitLab Community Edition is [hosted on GitLab.com](https://gitlab.com/gitlab-org/gitlab-ce/).
## Open source software to collaborate on code
To see how GitLab looks please see the [features page on our website](https://about.gitlab.com/features/).
* Manage Git repositories with fine grained access controls that keep your code secure
* Perform code reviews and enhance collaboration with merge requests
* Complete continuous integration (CI) and CD pipelines to builds, test, and deploy your applications
* Each project can also have an issue tracker, issue board, and a wiki
* Used by more than 100,000 organizations, GitLab is the most popular solution to manage Git repositories on-premises
* Completely free and open source (MIT Expat license)
GFM
)
aggregate_failures('an accidentally selected empty element') do
gfm = '# Heading1'
html = <<~HTML
<h1>Heading1</h1>
<h2></h2>
<blockquote></blockquote>
<pre class="code highlight"></pre>
HTML
output_gfm = html_to_gfm(html)
expect(output_gfm.strip).to eq(gfm.strip)
end
aggregate_failures('an accidentally selected other element') do
gfm = 'Test comment with **Markdown!**'
html = <<~HTML
<li class="note">
<div class="md">
<p>
Test comment with <strong>Markdown!</strong>
</p>
</div>
</li>
<li class="note"></li>
HTML
output_gfm = html_to_gfm(html)
expect(output_gfm.strip).to eq(gfm.strip)
end
verify(
'InlineDiffFilter',
'{-Deleted text-}',
'{+Added text+}'
)
verify(
'TaskListFilter',
<<~GFM,
* [ ] Unchecked task
* [x] Checked task
GFM
<<~GFM
1. [ ] Unchecked ordered task
1. [x] Checked ordered task
GFM
)
verify(
'ReferenceFilter',
# issue reference
@feat.issue.to_reference,
# full issue reference
@feat.issue.to_reference(full: true),
# issue URL
project_issue_url(@project, @feat.issue),
# issue URL with note anchor
project_issue_url(@project, @feat.issue, anchor: 'note_123'),
# issue link
"[Issue](#{project_issue_url(@project, @feat.issue)})",
# issue link with note anchor
"[Issue](#{project_issue_url(@project, @feat.issue, anchor: 'note_123')})"
)
verify(
'AutolinkFilter',
'https://example.com'
)
verify(
'TableOfContentsFilter',
<<~GFM,
[[_TOC_]]
# Heading 1
## Heading 2
GFM
pipeline: :wiki,
project_wiki: @project.wiki
)
verify(
'EmojiFilter',
':thumbsup:'
)
verify(
'ImageLinkFilter',
'![Image](https://example.com/image.png)'
)
verify(
'VideoLinkFilter',
'![Video](https://example.com/video.mp4)'
)
verify(
'MathFilter: math as converted from GFM to HTML',
'$`c = \pm\sqrt{a^2 + b^2}`$',
# math block
<<~GFM
```math
c = \pm\sqrt{a^2 + b^2}
```
GFM
)
aggregate_failures('MathFilter: math as transformed from HTML to KaTeX') do
gfm = '$`c = \pm\sqrt{a^2 + b^2}`$'
html = <<~HTML
<span class="katex">
<span class="katex-mathml">
<math>
<semantics>
<mrow>
<mi>c</mi>
<mo>=</mo>
<mo>±</mo>
<msqrt>
<mrow>
<msup>
<mi>a</mi>
<mn>2</mn>
</msup>
<mo>+</mo>
<msup>
<mi>b</mi>
<mn>2</mn>
</msup>
</mrow>
</msqrt>
</mrow>
<annotation encoding="application/x-tex">c = \\pm\\sqrt{a^2 + b^2}</annotation>
</semantics>
</math>
</span>
<span class="katex-html" aria-hidden="true">
<span class="strut" style="height: 0.913389em;"></span>
<span class="strut bottom" style="height: 1.04em; vertical-align: -0.126611em;"></span>
<span class="base textstyle uncramped">
<span class="mord mathit">c</span>
<span class="mrel">=</span>
<span class="mord">±</span>
<span class="sqrt mord"><span class="sqrt-sign" style="top: -0.073389em;">
<span class="style-wrap reset-textstyle textstyle uncramped">√</span>
</span>
<span class="vlist">
<span class="" style="top: 0em;">
<span class="fontsize-ensurer reset-size5 size5">
<span class="" style="font-size: 1em;"></span>
</span>
<span class="mord textstyle cramped">
<span class="mord">
<span class="mord mathit">a</span>
<span class="msupsub">
<span class="vlist">
<span class="" style="top: -0.289em; margin-right: 0.05em;">
<span class="fontsize-ensurer reset-size5 size5">
<span class="" style="font-size: 0em;"></span>
</span>
<span class="reset-textstyle scriptstyle cramped">
<span class="mord mathrm">2</span>
</span>
</span>
<span class="baseline-fix">
<span class="fontsize-ensurer reset-size5 size5">
<span class="" style="font-size: 0em;"></span>
</span>
</span>
</span>
</span>
</span>
<span class="mbin">+</span>
<span class="mord">
<span class="mord mathit">b</span>
<span class="msupsub">
<span class="vlist">
<span class="" style="top: -0.289em; margin-right: 0.05em;">
<span class="fontsize-ensurer reset-size5 size5">
<span class="" style="font-size: 0em;"></span>
</span>
<span class="reset-textstyle scriptstyle cramped">
<span class="mord mathrm">2</span>
</span>
</span>
<span class="baseline-fix">
<span class="fontsize-ensurer reset-size5 size5">
<span class="" style="font-size: 0em;"></span>
</span>
</span>
</span>
</span>
</span>
</span>
</span>
<span class="" style="top: -0.833389em;">
<span class="fontsize-ensurer reset-size5 size5">
<span class="" style="font-size: 1em;"></span>
</span>
<span class="reset-textstyle textstyle uncramped sqrt-line"></span>
</span>
<span class="baseline-fix">
<span class="fontsize-ensurer reset-size5 size5">
<span class="" style="font-size: 1em;"></span>
</span>
</span>
</span>
</span>
</span>
</span>
</span>
HTML
output_gfm = html_to_gfm(html)
expect(output_gfm.strip).to eq(gfm.strip)
end
verify(
'MermaidFilter: mermaid as converted from GFM to HTML',
<<~GFM
```mermaid
graph TD;
A-->B;
```
GFM
)
aggregate_failures('MermaidFilter: mermaid as transformed from HTML to SVG') do
gfm = <<~GFM
```mermaid
graph TD;
A-->B;
```
GFM
html = <<~HTML
<svg id="mermaidChart1" xmlns="http://www.w3.org/2000/svg" height="100%" viewBox="0 0 87.234375 174" style="max-width:87.234375px;" class="mermaid">
<style>
.mermaid {
/* Flowchart variables */
/* Sequence Diagram variables */
/* Gantt chart variables */
/** Section styling */
/* Grid and axis */
/* Today line */
/* Task styling */
/* Default task */
/* Specific task settings for the sections*/
/* Active task */
/* Completed task */
/* Tasks on the critical line */
}
</style>
<g>
<g class="output">
<g class="clusters"></g>
<g class="edgePaths">
<g class="edgePath" style="opacity: 1;">
<path class="path" d="M33.6171875,52L33.6171875,77L33.6171875,102" marker-end="url(#arrowhead65)" style="fill:none"></path>
<defs>
<marker id="arrowhead65" viewBox="0 0 10 10" refX="9" refY="5" markerUnits="strokeWidth" markerWidth="8" markerHeight="6" orient="auto">
<path d="M 0 0 L 10 5 L 0 10 z" class="arrowheadPath" style="stroke-width: 1; stroke-dasharray: 1, 0;"></path>
</marker>
</defs>
</g>
</g>
<g class="edgeLabels">
<g class="edgeLabel" style="opacity: 1;" transform="">
<g transform="translate(0,0)" class="label">
<foreignObject width="0" height="0">
<div xmlns="http://www.w3.org/1999/xhtml" style="display: inline-block; white-space: nowrap;">
<span class="edgeLabel"></span>
</div>
</foreignObject>
</g>
</g>
</g>
<g class="nodes">
<g class="node" id="A" transform="translate(33.6171875,36)" style="opacity: 1;">
<rect rx="0" ry="0" x="-13.6171875" y="-16" width="27.234375" height="32"></rect>
<g class="label" transform="translate(0,0)">
<g transform="translate(-3.6171875,-6)">
<foreignObject width="7.234375" height="12">
<div xmlns="http://www.w3.org/1999/xhtml" style="display: inline-block; white-space: nowrap;">A</div>
</foreignObject>
</g>
</g>
</g>
<g class="node" id="B" transform="translate(33.6171875,118)" style="opacity: 1;">
<rect rx="0" ry="0" x="-13.6171875" y="-16" width="27.234375" height="32">
</rect>
<g class="label" transform="translate(0,0)">
<g transform="translate(-3.6171875,-6)">
<foreignObject width="7.234375" height="12">
<div xmlns="http://www.w3.org/1999/xhtml" style="display: inline-block; white-space: nowrap;">B</div>
</foreignObject>
</g>
</g>
</g>
</g>
</g>
</g>
<text class="source" display="none">graph TD;
A--&gt;B;</text>
</svg>
HTML
output_gfm = html_to_gfm(html)
expect(output_gfm.strip).to eq(gfm.strip)
end
verify(
'SuggestionFilter: suggestion as converted from GFM to HTML',
<<~GFM
```suggestion
New
And newer
```
GFM
)
aggregate_failures('SuggestionFilter: suggestion as transformed from HTML to Vue component') do
gfm = <<~GFM
```suggestion
New
And newer
```
GFM
html = <<~HTML
<div class="md-suggestion">
<div class="md-suggestion-header border-bottom-0 mt-2 qa-suggestion-diff-header">
<div class="qa-suggestion-diff-header font-weight-bold">
Suggested change
<a href="/gitlab/help/user/discussions/index.md#suggest-changes" aria-label="Help" class="js-help-btn">
<svg aria-hidden="true" class="s16 ic-question-o link-highlight">
<use xlink:href="/gitlab/assets/icons.svg#question-o"></use>
</svg>
</a>
</div>
<!---->
<button type="button" class="btn qa-apply-btn">Apply suggestion</button>
</div>
<table class="mb-3 md-suggestion-diff js-syntax-highlight code white">
<tbody>
<tr class="line_holder old">
<td class="diff-line-num old_line qa-old-diff-line-number old">9</td>
<td class="diff-line-num new_line old"></td>
<td class="line_content old"><span>Old
</span></td>
</tr>
<tr class="line_holder new">
<td class="diff-line-num old_line new"></td>
<td class="diff-line-num new_line qa-new-diff-line-number new">9</td>
<td class="line_content new"><span>New
</span></td>
</tr>
<tr class="line_holder new">
<td class="diff-line-num old_line new"></td>
<td class="diff-line-num new_line qa-new-diff-line-number new">10</td>
<td class="line_content new"><span> And newer
</span></td>
</tr>
</tbody>
</table>
</div>
HTML
output_gfm = html_to_gfm(html)
expect(output_gfm.strip).to eq(gfm.strip)
end
verify(
'SanitizationFilter',
<<~GFM
<sub>sub</sub>
<dl>
<dt>dt</dt>
<dt>dt</dt>
<dd>dd</dd>
<dd>dd</dd>
<dt>dt</dt>
<dt>dt</dt>
<dd>dd</dd>
<dd>dd</dd>
</dl>
<kbd>kbd</kbd>
<q>q</q>
<samp>samp</samp>
<var>var</var>
<abbr title="HyperText &quot;Markup&quot; Language">HTML</abbr>
<details>
<summary>summary></summary>
details
</details>
GFM
)
verify(
'SanitizationFilter',
<<~GFM,
```
Plain text
```
GFM
<<~GFM,
```ruby
def foo
bar
end
```
GFM
<<~GFM
Foo
```js
Code goes here
```
GFM
)
verify(
'MarkdownFilter',
"Line with two spaces at the end \nto insert a linebreak",
'`code`',
'`` code with ` ticks ``',
'> Quote',
# multiline quote
<<~GFM,
> Multiline Quote
>
> With multiple paragraphs
GFM
'![Image](https://example.com/image.png)',
'# Heading with no anchor link',
'[Link](https://example.com)',
<<~GFM,
* List item
* List item 2
GFM
# multiline list item
<<~GFM,
* Multiline
List item
GFM
# nested lists
<<~GFM,
* Nested
* Lists
GFM
# list with blockquote
<<~GFM,
* List
> Blockquote
GFM
<<~GFM,
1. Ordered list item
1. Ordered list item 2
GFM
# multiline ordered list item
<<~GFM,
1. Multiline
Ordered list item
GFM
# nested ordered list
<<~GFM,
1. Nested
1. Ordered lists
GFM
# list item followed by an HR
<<~GFM,
* list item
---
GFM
'# Heading',
'## Heading',
'### Heading',
'#### Heading',
'##### Heading',
'###### Heading',
'**Bold**',
'*Italics*',
'~~Strikethrough~~',
'---',
# table
<<~GFM,
| Centered | Right | Left |
|:--------:|------:|------|
| Foo | Bar | **Baz** |
| Foo | Bar | **Baz** |
GFM
# table with empty heading
<<~GFM,
| | x | y |
|--|---|---|
| a | 1 | 0 |
| b | 0 | 1 |
GFM
)
end
alias_method :gfm_to_html, :markdown
def verify(label, *gfms)
markdown_options = gfms.extract_options!
aggregate_failures(label) do
gfms.each do |gfm|
html = gfm_to_html(gfm, markdown_options).gsub(/\A&#x000A;|&#x000A;\z/, '')
output_gfm = html_to_gfm(html)
expect(output_gfm.strip).to eq(gfm.strip)
end
end
end
# Fake a `current_user` helper
def current_user
@feat.user
end
end
describe 'Copying code' do
let(:project) { create(:project, :repository) }
context 'from a diff' do
shared_examples 'copying code from a diff' do
context 'selecting one word of text' do
it 'copies as inline code' do
verify(
'[id="2f6fcd96b88b36ce98c38da085c795a27d92a3dd_10_9"] .line .no',
'`RuntimeError`',
target: '[id="2f6fcd96b88b36ce98c38da085c795a27d92a3dd_10_9"]'
)
end
end
context 'selecting one line of text' do
it 'copies as inline code' do
verify(
'[id="2f6fcd96b88b36ce98c38da085c795a27d92a3dd_10_9"]',
'`raise RuntimeError, "System commands must be given as an array of strings"`',
target: '[id="2f6fcd96b88b36ce98c38da085c795a27d92a3dd_10_9"]'
)
end
end
context 'selecting multiple lines of text' do
it 'copies as a code block' do
verify(
'[id="2f6fcd96b88b36ce98c38da085c795a27d92a3dd_10_9"], [id="2f6fcd96b88b36ce98c38da085c795a27d92a3dd_10_10"]',
<<~GFM,
```ruby
raise RuntimeError, "System commands must be given as an array of strings"
end
```
GFM
target: '[id="2f6fcd96b88b36ce98c38da085c795a27d92a3dd_10_9"]'
)
end
end
end
context 'inline diff' do
before do
visit project_commit_path(project, sample_commit.id, view: 'inline')
end
it_behaves_like 'copying code from a diff'
end
context 'parallel diff' do
before do
visit project_commit_path(project, sample_commit.id, view: 'parallel')
end
it_behaves_like 'copying code from a diff'
context 'selecting code on the left' do
it 'copies as a code block' do
verify(
'[id="2f6fcd96b88b36ce98c38da085c795a27d92a3dd_8_8"], [id="2f6fcd96b88b36ce98c38da085c795a27d92a3dd_9_9"], [id="2f6fcd96b88b36ce98c38da085c795a27d92a3dd_10_9"], [id="2f6fcd96b88b36ce98c38da085c795a27d92a3dd_10_10"]',
<<~GFM,
```ruby
unless cmd.is_a?(Array)
raise "System commands must be given as an array of strings"
end
```
GFM
target: '[id="2f6fcd96b88b36ce98c38da085c795a27d92a3dd_8_8"].left-side'
)
end
end
context 'selecting code on the right' do
it 'copies as a code block' do
verify(
'[id="2f6fcd96b88b36ce98c38da085c795a27d92a3dd_8_8"], [id="2f6fcd96b88b36ce98c38da085c795a27d92a3dd_9_9"], [id="2f6fcd96b88b36ce98c38da085c795a27d92a3dd_10_9"], [id="2f6fcd96b88b36ce98c38da085c795a27d92a3dd_10_10"]',
<<~GFM,
```ruby
unless cmd.is_a?(Array)
raise RuntimeError, "System commands must be given as an array of strings"
end
```
GFM
target: '[id="2f6fcd96b88b36ce98c38da085c795a27d92a3dd_8_8"].right-side'
)
end
end
end
end
context 'from a blob' do
before do
visit project_blob_path(project, File.join('master', 'files/ruby/popen.rb'))
wait_for_requests
end
context 'selecting one word of text' do
it 'copies as inline code' do
verify(
'.line[id="LC9"] .no',
'`RuntimeError`'
)
end
end
context 'selecting one line of text' do
it 'copies as inline code' do
verify(
'.line[id="LC9"]',
'`raise RuntimeError, "System commands must be given as an array of strings"`'
)
end
end
context 'selecting multiple lines of text' do
it 'copies as a code block' do
verify(
'.line[id="LC9"], .line[id="LC10"]',
<<~GFM,
```ruby
raise RuntimeError, "System commands must be given as an array of strings"
end
```
GFM
)
end
end
end
context 'from a GFM code block' do
before do
visit project_blob_path(project, File.join('markdown', 'doc/api/users.md'))
wait_for_requests
end
context 'selecting one word of text' do
it 'copies as inline code' do
verify(
'.line[id="LC27"] .s2',
'`"bio"`'
)
end
end
context 'selecting one line of text' do
it 'copies as inline code' do
verify(
'.line[id="LC27"]',
'`"bio": null,`'
)
end
end
context 'selecting multiple lines of text' do
it 'copies as a code block with the correct language' do
verify(
'.line[id="LC27"], .line[id="LC28"]',
<<~GFM,
```json
"bio": null,
"skype": "",
```
GFM
)
end
end
end
def verify(selector, gfm, target: nil)
html = html_for_selector(selector)
output_gfm = html_to_gfm(html, 'transformCodeSelection', target: target)
wait_for_requests
expect(output_gfm.strip).to eq(gfm.strip)
end
end
def html_for_selector(selector)
js = <<~JS
(function(selector) {
var els = document.querySelectorAll(selector);
var htmls = [].slice.call(els).map(function(el) { return el.outerHTML; });
return htmls.join("\\n");
})("#{escape_javascript(selector)}")
JS
page.evaluate_script(js)
end
def html_to_gfm(html, transformer = 'transformGFMSelection', target: nil)
js = <<~JS
(function(html) {
// Setting it off so the import already starts
window.CopyAsGFM.nodeToGFM(document.createElement('div'));
var transformer = window.CopyAsGFM[#{transformer.inspect}];
var node = document.createElement('div');
$(html).each(function() { node.appendChild(this) });
var targetSelector = #{target.to_json};
var target;
if (targetSelector) {
target = document.querySelector(targetSelector);
}
node = transformer(node, target);
if (!node) return null;
window.gfmCopytestRes = null;
window.CopyAsGFM.nodeToGFM(node)
.then((res) => {
window.gfmCopytestRes = res;
});
})("#{escape_javascript(html)}")
JS
page.execute_script(js)
loop until page.evaluate_script('window.gfmCopytestRes !== null')
page.evaluate_script('window.gfmCopytestRes')
end
end