# frozen_string_literal: true
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
[](https://gitlab.com/gitlab-org/gitlab-foss/commits/master)
[](https://gitlab-org.gitlab.io/gitlab-ce/coverage-ruby)
[](https://codeclimate.com/github/gitlabhq/gitlabhq)
[](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-foss/).
## 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
Heading1
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
Test comment with Markdown!
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',
''
)
verify(
'VideoLinkFilter',
''
)
verify(
'AudioLinkFilter',
''
)
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
c=±√a2
+b2
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
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
Suggested change
9
Old
9
New
10
And newer
HTML
output_gfm = html_to_gfm(html)
expect(output_gfm.strip).to eq(gfm.strip)
end
verify(
'SanitizationFilter',
<<~GFM
sub
dt
dt
dd
dd
dt
dt
dd
dd
kbdqsampvar
HTML
summary>
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
'',
'# 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
|
\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"] .nl',
'`"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