Add setting to clear out ActionMailer after a test.

Add setting to clear out ActionMailer::Base.deliveries after RSpec test.

Author: valdeci-dev

spec/mailers/user_mailer_spec.rb

@@ -1,6 +1,7 @@
 require 'rails_helper'
 
 RSpec.describe UserMailer, type: :mailer do
+	
 	include Rails.application.routes.url_helpers
 
 	let(:achievement_id) {1}
@@ -11,7 +12,7 @@
 	end
 
 	it 'has correct subject' do
-		expect(email.subject). to eq('Congratulations with your new achievement!')
+		expect(email.subject).to eq('Congratulations with your new achievement!')
 	end
 
 	it 'has achievement link in body message' do

spec/rails_helper.rb

@@ -38,6 +38,7 @@
 ActiveRecord::Migration.maintain_test_schema!
 
 RSpec.configure do |config|
+
   # Remove this line if you're not using ActiveRecord or ActiveRecord fixtures
   config.fixture_path = "#{::Rails.root}/spec/fixtures"
 
@@ -66,6 +67,9 @@
   # arbitrary gems may also be filtered via:
   # config.filter_gems_from_backtrace("gem name")
 
+	# Clear out ActionMailer::Base.deliveries after RSpec test
+	config.before(:each) { ActionMailer::Base.deliveries.clear }
+
   config.include Devise::Test::ControllerHelpers, type: :controller
 
 	Shoulda::Matchers.configure do |config|