Add Gitlab::Markdown::AutolinkFilter

1 files changed, 98 insertions, 0 deletions

diff --git a/spec/lib/gitlab/markdown/autolink_filter_spec.rb b/spec/lib/gitlab/markdown/autolink_filter_spec.rb
new file mode 100644
index 00000000000..83fee123330
--- /dev/null
+++ b/spec/lib/gitlab/markdown/autolink_filter_spec.rb
@@ -0,0 +1,98 @@
+require 'spec_helper'
+
+module Gitlab::Markdown
+  describe AutolinkFilter do
+    let(:link) { 'http://about.gitlab.com/' }
+
+    def filter(html, options = {})
+      described_class.call(html, options)
+    end
+
+    it 'does nothing when :autolink is false' do
+      exp = act = link
+      expect(filter(act, autolink: false).to_html).to eq exp
+    end
+
+    it 'does nothing with non-link text' do
+      exp = act = 'This text contains no links to autolink'
+      expect(filter(act).to_html).to eq exp
+    end
+
+    context 'Rinku schemes' do
+      it 'autolinks http' do
+        doc = filter("See #{link}")
+        expect(doc.at_css('a').text).to eq link
+        expect(doc.at_css('a')['href']).to eq link
+      end
+
+      it 'autolinks https' do
+        link = 'https://google.com/'
+        doc = filter("See #{link}")
+
+        expect(doc.at_css('a').text).to eq link
+        expect(doc.at_css('a')['href']).to eq link
+      end
+
+      it 'autolinks ftp' do
+        link = 'ftp://ftp.us.debian.org/debian/'
+        doc = filter("See #{link}")
+
+        expect(doc.at_css('a').text).to eq link
+        expect(doc.at_css('a')['href']).to eq link
+      end
+
+      it 'accepts link_attr options' do
+        doc = filter("See #{link}", link_attr: {class: 'custom'})
+
+        expect(doc.at_css('a')['class']).to eq 'custom'
+      end
+
+      described_class::IGNORE_PARENTS.each do |elem|
+        it "ignores valid links contained inside '#{elem}' element" do
+          exp = act = "<#{elem}>See #{link}</#{elem}>"
+          expect(filter(act).to_html).to eq exp
+        end
+      end
+    end
+
+    context 'other schemes' do
+      let(:link) { 'foo://bar.baz/' }
+
+      it 'autolinks smb' do
+        link = 'smb:///Volumes/shared/foo.pdf'
+        doc = filter("See #{link}")
+
+        expect(doc.at_css('a').text).to eq link
+        expect(doc.at_css('a')['href']).to eq link
+      end
+
+      it 'autolinks irc' do
+        link = 'irc://irc.freenode.net/git'
+        doc = filter("See #{link}")
+
+        expect(doc.at_css('a').text).to eq link
+        expect(doc.at_css('a')['href']).to eq link
+      end
+
+      it 'does not include trailing punctuation' do
+        doc = filter("See #{link}.")
+        expect(doc.at_css('a').text).to eq link
+
+        doc = filter("See #{link}, ok?")
+        expect(doc.at_css('a').text).to eq link
+      end
+
+      it 'accepts link_attr options' do
+        doc = filter("See #{link}", link_attr: {class: 'custom'})
+        expect(doc.at_css('a')['class']).to eq 'custom'
+      end
+
+      described_class::IGNORE_PARENTS.each do |elem|
+        it "ignores valid links contained inside '#{elem}' element" do
+          exp = act = "<#{elem}>See #{link}</#{elem}>"
+          expect(filter(act).to_html).to eq exp
+        end
+      end
+    end
+  end
+end