module ActionMailerMatchers

# File lib/action_mailer_matchers.rb, line 45
def body_for(mail)
  if mail.try(:parts).present?
    mail.try(:parts).try(:first).try(:body).try(:raw_source)
  else
    mail.try(:body).try(:raw_source)
  end
end

# File lib/action_mailer_matchers.rb, line 53
def deliveries
  ActionMailer::Base.deliveries
end

# File lib/action_mailer_matchers.rb, line 35
def matching_mail_for(email, body, email_subject, email_method)
  deliveries.detect do |mail|
    has_expected_email = mail.send(email_method).include?(email)
    has_expected_body = body ? body_for(mail).include?(body) : true
    has_expected_subject = email_subject ? mail.subject.include?(email_subject) : true

    has_expected_email && has_expected_body && has_expected_subject
  end
end

# File lib/action_mailer_matchers.rb, line 24
def received_email?(email_or_user, expected, email_method = :to)
  expected_attrs = expected.present? ? expected : {}
  email = email_or_user.try(:email) || email_or_user
  email_subject = expected_attrs[:subject]
  body = expected_attrs[:body]

  matching_email = matching_mail_for(email, body, email_subject, email_method)

  expect(matching_email.present?).to eql(true)
end