Add scheduled statuses (#9706)

Fix #340

spec/workers/publish_scheduled_status_worker_spec.rb

@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+describe PublishScheduledStatusWorker do
+  subject { described_class.new }
+
+  let(:scheduled_status) { Fabricate(:scheduled_status, params: { text: 'Hello world, future!' }) }
+
+  describe 'perform' do
+    before do
+      subject.perform(scheduled_status.id)
+    end
+
+    it 'creates a status' do
+      expect(scheduled_status.account.statuses.first.text).to eq 'Hello world, future!'
+    end
+
+    it 'removes the scheduled status' do
+      expect(ScheduledStatus.find_by(id: scheduled_status.id)).to be_nil
+    end
+  end
+end