Fixing some bugs, adding pending test examples

spec/services/process_mentions_service_spec.rb

@@ -1,5 +1,22 @@
 require 'rails_helper'
 
 RSpec.describe ProcessMentionsService do
-  pending
+  let(:account)     { Fabricate(:account, username: 'alice') }
+  let(:remote_user) { Fabricate(:account, username: 'remote_user', domain: 'example.com', salmon_url: 'http://salmon.example.com') }
+  let(:status)      { Fabricate(:status, account: account, text: "Hello @#{remote_user.acct}") }
+
+  subject { ProcessMentionsService.new }
+
+  before do
+    stub_request(:post, remote_user.salmon_url)
+    subject.(status)
+  end
+
+  it 'creates a mention' do
+    expect(remote_user.mentions.where(status: status).count).to eq 1
+  end
+
+  it 'posts to remote user\'s Salmon end point' do
+    expect(a_request(:post, remote_user.salmon_url)).to have_been_made
+  end
 end