mastodon/spec/support/examples/mailers.rb

# frozen_string_literal: true

RSpec.shared_examples 'localized subject' do |*args, **kwrest|
  it 'renders subject localized for the locale of the receiver' do
    locale = :de
    receiver.update!(locale: locale)
    expect(mail.subject).to eq I18n.t(*args, **kwrest.merge(locale: locale))
  end

  it 'renders subject localized for the default locale if the locale of the receiver is unavailable' do
    receiver.update!(locale: nil)
    expect(mail.subject).to eq I18n.t(*args, **kwrest.merge(locale: I18n.default_locale))
  end
end

RSpec::Matchers.define :have_thread_headers do
  match(notify_expectation_failures: true) do |mail|
    expect(mail)
      .to be_present
      .and have_header('In-Reply-To', conversation_header_regex)
      .and have_header('References', conversation_header_regex)
  end

  def conversation_header_regex = /<conversation-\d+.\d\d\d\d-\d\d-\d\d@#{Regexp.quote(Rails.configuration.x.local_domain)}>/
end

RSpec::Matchers.define :have_standard_headers do |type|
  chain :for do |user|
    @user = user
  end

  match(notify_expectation_failures: true) do |mail|
    expect(mail)
      .to be_present
      .and have_header('To', "#{@user.account.username} <#{@user.email}>")
      .and have_header('List-ID', "<#{type}.#{@user.account.username}.#{Rails.configuration.x.local_domain}>")
      .and have_header('List-Unsubscribe', %r{<https://#{Rails.configuration.x.local_domain}/unsubscribe\?token=.+>})
      .and have_header('List-Unsubscribe', /&type=#{type}/)
      .and have_header('List-Unsubscribe-Post', 'List-Unsubscribe=One-Click')
    expect(mail.to)
      .to contain_exactly(@user.email)
    expect(mail.from)
      .to contain_exactly(Rails.configuration.action_mailer.default_options[:from])
  end
end

RSpec::Matchers.define :have_header do |name, value|
  match(notify_expectation_failures: true) do |mail|
    expect(mail.header[name].value)
      .to match(value)
  end
end