mailgun ingest test

mailgun_ingest_test.rb

# frozen_string_literal: true

require "bundler/inline"

gemfile(true) do
  source "https://rubygems.org"
  ruby "3.1.2"

  git_source(:github) { |repo| "https://github.com/#{repo}.git" }

  # Activate the gem you are reporting the issue against.
  gem "rails", "~> 7.0.0"
  gem "sqlite3"
end

require "rack/test"
require "action_controller/railtie"
require "active_record/railtie"
require "active_storage/engine"
require "action_mailbox/engine"
require "tmpdir"

class TestApp < Rails::Application
  config.root = __dir__
  config.hosts << "example.org"
  config.session_store :cookie_store, key: "cookie_store_key"
  secrets.secret_key_base = "secret_key_base"

  config.logger = Logger.new($stdout)
  Rails.logger  = config.logger

  config.active_storage.service = :local
  config.active_storage.service_configurations = {
    local: {
      root: Dir.tmpdir,
      service: "Disk"
    }
  }

  routes.draw do
    scope "/rails/action_mailbox", module: "action_mailbox/ingresses" do
      post "/mailgun/inbound_emails/mime" => "mailgun/inbound_emails#create", as: :rails_mailgun_inbound_emails
    end
  end

  config.action_mailbox.ingress = :mailgun
end

ENV["DATABASE_URL"] = "sqlite3::memory:"

Rails.application.initialize!

require ActiveStorage::Engine.root.join("db/migrate/20170806125915_create_active_storage_tables.rb").to_s
require ActionMailbox::Engine.root.join("db/migrate/20180917164000_create_action_mailbox_tables.rb").to_s

ActiveRecord::Schema.define do
  CreateActiveStorageTables.new.change
  CreateActionMailboxTables.new.change
end

require "minitest/autorun"

class MailgunIngressTest < Minitest::Test
  include Rack::Test::Methods

  def setup
    @inbound_email = File.binread "email.eml"
    @timestamp = Time.now.to_i
    @key = "RANDOM_SIGNING_KEY"
    ENV["MAILGUN_INGRESS_SIGNING_KEY"] = @key
    @signature = OpenSSL::HMAC.hexdigest OpenSSL::Digest::SHA256.new, @key, "#{@timestamp}TOKEN"
  end

  def test_controller_ingress
    post "/rails/action_mailbox/mailgun/inbound_emails/mime", params: {
      signature: @signature,
      token: "TOKEN",
      timestamp: @timestamp,
      "body-mime" => @inbound_email
    }
    assert last_response.ok?
  end

  private
  def app
    Rails.application
  end
end