Fix wrongful matching of last period in extended usernames

Fix anchor tags in some wikipedia URLs being matches as a hashtag

1 files changed, 10 insertions, 0 deletions

diff --git a/spec/models/tag_spec.rb b/spec/models/tag_spec.rb
index 9a7f481e4..360bbc16d 100644
--- a/spec/models/tag_spec.rb
+++ b/spec/models/tag_spec.rb
@@ -1,5 +1,15 @@
 require 'rails_helper'
 
 RSpec.describe Tag, type: :model do
+  describe 'HASHTAG_RE' do
+    subject { Tag::HASHTAG_RE }
 
+    it 'does not match URLs with anchors with non-hashtag characters' do
+      expect(subject.match('Check this out https://medium.com/@alice/some-article#.abcdef123')).to be_nil
+    end
+
+    it 'does not match URLs with hashtag-like anchors' do
+      expect(subject.match('https://en.wikipedia.org/wiki/Ghostbusters_(song)#Lawsuit')).to be_nil
+    end
+  end
 end