Move Markdown/reference logic from Gitlab::Markdown to Banzai

1 files changed, 98 insertions, 0 deletions

diff --git a/spec/lib/banzai/filter/emoji_filter_spec.rb b/spec/lib/banzai/filter/emoji_filter_spec.rb
new file mode 100644
index 00000000000..cf314058158
--- /dev/null
+++ b/spec/lib/banzai/filter/emoji_filter_spec.rb
@@ -0,0 +1,98 @@
+require 'spec_helper'
+
+describe Banzai::Filter::EmojiFilter, lib: true do
+  include FilterSpecHelper
+
+  before do
+    @original_asset_host = ActionController::Base.asset_host
+    ActionController::Base.asset_host = 'https://foo.com'
+  end
+
+  after do
+    ActionController::Base.asset_host = @original_asset_host
+  end
+
+  it 'replaces supported emoji' do
+    doc = filter('<p>:heart:</p>')
+    expect(doc.css('img').first.attr('src')).to eq 'https://foo.com/assets/emoji/2764.png'
+  end
+
+  it 'ignores unsupported emoji' do
+    exp = act = '<p>:foo:</p>'
+    doc = filter(act)
+    expect(doc.to_html).to match Regexp.escape(exp)
+  end
+
+  it 'correctly encodes the URL' do
+    doc = filter('<p>:+1:</p>')
+    expect(doc.css('img').first.attr('src')).to eq 'https://foo.com/assets/emoji/1F44D.png'
+  end
+
+  it 'matches at the start of a string' do
+    doc = filter(':+1:')
+    expect(doc.css('img').size).to eq 1
+  end
+
+  it 'matches at the end of a string' do
+    doc = filter('This gets a :-1:')
+    expect(doc.css('img').size).to eq 1
+  end
+
+  it 'matches with adjacent text' do
+    doc = filter('+1 (:+1:)')
+    expect(doc.css('img').size).to eq 1
+  end
+
+  it 'matches multiple emoji in a row' do
+    doc = filter(':see_no_evil::hear_no_evil::speak_no_evil:')
+    expect(doc.css('img').size).to eq 3
+  end
+
+  it 'has a title attribute' do
+    doc = filter(':-1:')
+    expect(doc.css('img').first.attr('title')).to eq ':-1:'
+  end
+
+  it 'has an alt attribute' do
+    doc = filter(':-1:')
+    expect(doc.css('img').first.attr('alt')).to eq ':-1:'
+  end
+
+  it 'has an align attribute' do
+    doc = filter(':8ball:')
+    expect(doc.css('img').first.attr('align')).to eq 'absmiddle'
+  end
+
+  it 'has an emoji class' do
+    doc = filter(':cat:')
+    expect(doc.css('img').first.attr('class')).to eq 'emoji'
+  end
+
+  it 'has height and width attributes' do
+    doc = filter(':dog:')
+    img = doc.css('img').first
+
+    expect(img.attr('width')).to eq '20'
+    expect(img.attr('height')).to eq '20'
+  end
+
+  it 'keeps whitespace intact' do
+    doc = filter('This deserves a :+1:, big time.')
+
+    expect(doc.to_html).to match(/^This deserves a <img.+>, big time\.\z/)
+  end
+
+  it 'uses a custom asset_root context' do
+    root = Gitlab.config.gitlab.url + 'gitlab/root'
+
+    doc = filter(':smile:', asset_root: root)
+    expect(doc.css('img').first.attr('src')).to start_with(root)
+  end
+
+  it 'uses a custom asset_host context' do
+    ActionController::Base.asset_host = 'https://cdn.example.com'
+
+    doc = filter(':frowning:', asset_host: 'https://this-is-ignored-i-guess?')
+    expect(doc.css('img').first.attr('src')).to start_with('https://cdn.example.com')
+  end
+end