Specs: Add specs for Facebook::SendReplyService (#396)

spec/services/facebook/send_reply_service_spec.rb

@@ -0,0 +1,51 @@
+require 'rails_helper'
+
+describe Facebook::SendReplyService do
+  subject(:send_reply_service) { described_class.new(message: message) }
+
+  before do
+    allow(Facebook::Messenger::Subscriptions).to receive(:subscribe).and_return(true)
+    allow(bot).to receive(:deliver)
+  end
+
+  let!(:account) { create(:account) }
+  let(:bot) { class_double('Bot').as_stubbed_const }
+  let!(:widget_inbox) { create(:inbox, account: account) }
+  let!(:facebook_channel) { create(:facebook_page, account: account) }
+  let!(:facebook_inbox) { create(:inbox, channel: facebook_channel, account: account) }
+  let!(:contact) { create(:contact, account: account) }
+  let(:conversation) { create(:conversation, contact: contact, inbox: facebook_inbox) }
+
+  describe '#perform' do
+    context 'without reply' do
+      it 'if message is private' do
+        create(:message, message_type: 'outgoing', private: true, inbox: facebook_inbox, account: account)
+        expect(bot).not_to have_received(:deliver)
+      end
+
+      it 'if inbox channel is not facebook page' do
+        create(:message, message_type: 'outgoing', inbox: widget_inbox, account: account)
+        expect(bot).not_to have_received(:deliver)
+      end
+
+      it 'if message is not outgoing' do
+        create(:message, message_type: 'incoming', inbox: facebook_inbox, account: account)
+        expect(bot).not_to have_received(:deliver)
+      end
+
+      it 'if message has an FB ID' do
+        create(:message, message_type: 'outgoing', inbox: facebook_inbox, account: account, fb_id: SecureRandom.uuid)
+        expect(bot).not_to have_received(:deliver)
+      end
+    end
+
+    context 'with reply' do
+      it 'if message is sent from chatwoot and is outgoing' do
+        create(:contact_inbox, contact: contact, inbox: facebook_inbox)
+        create(:message, message_type: :incoming, inbox: facebook_inbox, account: account, conversation: conversation)
+        create(:message, message_type: 'outgoing', inbox: facebook_inbox, account: account, conversation: conversation)
+        expect(bot).to have_received(:deliver)
+      end
+    end
+  end
+end