Rails mini file test example

Rails_mini_file_test.rb

# frozen_string_literal: true

require "bundler/inline"

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

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

  # Activate the gem you are reporting the issue against.
  gem "rails", path: "."
  gem "sqlite3"
  if RUBY_VERSION >= "3.1"
    # net-smtp, net-imap and net-pop were removed from default gems in Ruby 3.1, but is used by the `mail` gem.
    # So we need to add them as dependencies until `mail` is fixed: https://github.com/mikel/mail/pull/1439
    gem "net-smtp", require: false
  end
end

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.eager_load = false
  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"
    },
    email: {
      root: "#{Dir.tmpdir}/email",
      service: "Disk"
    }
  }

  # Uncomment the line below to follow active_storage
  # config.action_mailbox.storage_service = config.active_storage.service

  config.action_mailbox.ingress = :relay
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

class ApplicationMailbox < ActionMailbox::Base
end

require "minitest/autorun"

class RepliesMailboxTest < ActionMailbox::TestCase

  test "should follow current default storage service" do
    # ActiveStorage is configured to local
    assert_equal(:local, ActiveStorage::Blob.service.name)
    # Let's change it
    ActiveStorage::Blob.service = ActiveStorage::Blob.services.fetch(:email)
    assert_equal(:email, ActiveStorage::Blob.service.name)

    message = create_inbound_email_from_mail(from: "david@loudthinking.com", subject: "Hello!")
    raw = message.raw_email
    assert(ActiveStorage::Blob.services.fetch(:email).exist?(raw.key))
    assert_not(ActiveStorage::Blob.services.fetch(:local).exist?(raw.key))
  end

end