chore: Add message_echo listener for Facebook (#1192)

Co-authored-by: Sojan Jose <sojan@pepalo.com>

spec/models/channel/facebook_page_spec.rb

@@ -3,10 +3,14 @@
 require 'rails_helper'
 
 RSpec.describe Channel::FacebookPage do
-  before { create(:channel_facebook_page) }
+  let(:channel) { create(:channel_facebook_page) }
 
   it { is_expected.to validate_presence_of(:account_id) }
   # it { is_expected.to validate_uniqueness_of(:page_id).scoped_to(:account_id) }
   it { is_expected.to belong_to(:account) }
   it { is_expected.to have_one(:inbox).dependent(:destroy) }
+
+  it 'has a valid name' do
+    expect(channel.name).to eq('Facebook')
+  end
 end

spec/models/inbox_spec.rb

@@ -69,13 +69,17 @@ RSpec.describe Inbox do
 
       it do
         expect(inbox.facebook?).to eq(true)
+        expect(inbox.inbox_type).to eq('Facebook')
       end
     end
 
     context 'when the channel type is not Channel::FacebookPage' do
       let(:channel_val) { Channel::WebWidget.new }
 
-      it { expect(inbox.facebook?).to eq(false) }
+      it do
+        expect(inbox.facebook?).to eq(false)
+        expect(inbox.inbox_type).to eq('Website')
+      end
     end
   end
 end