require_relative '../../test_helper' class ActionMailbox::InboundEmail::MessageIdTest < ActiveSupport::TestCase test "message id is extracted from raw email" do inbound_email = create_inbound_email_from_fixture("welcome.eml") assert_equal "0CB459E0-0336-41DA-BC88-E6E28C697DDB@37signals.com", inbound_email.message_id end test "message id is generated if its missing" do inbound_email = create_inbound_email "Date: Fri, 28 Sep 2018 11:08:55 -0700\r\nTo: a@example.com\r\nMime-Version: 1.0\r\nContent-Type: text/plain\r\nContent-Transfer-Encoding: 7bit\r\n\r\nHello!" assert_not_nil inbound_email.message_id end end