require 'test/spec'
require 'rack/mock'

begin
  require 'tmail'
  require 'rack/contrib/mailexceptions'

  require File.dirname(__FILE__) + '/mail_settings.rb'

  class TestError < RuntimeError
  end

  def test_exception
    raise TestError, 'Suffering Succotash!'
  rescue => boom
    return boom
  end

  context 'Rack::MailExceptions' do

    setup do
      @app = lambda { |env| raise TestError, 'Why, I say' }
      @env = Rack::MockRequest.env_for("/foo",
        'FOO' => 'BAR',
        :method => 'GET',
        :input => 'THE BODY'
      )
      @smtp_settings = {
        :server         => 'example.com',
        :domain         => 'example.com',
        :port           => 500,
        :authentication => :login,
        :user_name      => 'joe',
        :password       => 'secret'
      }
    end

    specify 'yields a configuration object to the block when created' do
      called = false
      mailer =
        Rack::MailExceptions.new(@app) do |mail|
          called = true
          mail.to 'foo@example.org'
          mail.from 'bar@example.org'
          mail.subject '[ERROR] %s'
          mail.smtp @smtp_settings
        end
      called.should.be == true
    end

    specify 'generates a TMail object with configured settings' do
      mailer =
        Rack::MailExceptions.new(@app) do |mail|
          mail.to 'foo@example.org'
          mail.from 'bar@example.org'
          mail.subject '[ERROR] %s'
          mail.smtp @smtp_settings
        end

      tmail = mailer.send(:generate_mail, test_exception, @env)
      tmail.to.should.equal ['foo@example.org']
      tmail.from.should.equal ['bar@example.org']
      tmail.subject.should.equal '[ERROR] Suffering Succotash!'
      tmail.body.should.not.be.nil
      tmail.body.should.be =~ /FOO:\s+"BAR"/
      tmail.body.should.be =~ /^\s*THE BODY\s*$/
    end

    specify 'catches exceptions raised from app, sends mail, and re-raises' do
      mailer =
        Rack::MailExceptions.new(@app) do |mail|
          mail.to 'foo@example.org'
          mail.from 'bar@example.org'
          mail.subject '[ERROR] %s'
          mail.smtp @smtp_settings
        end
      lambda { mailer.call(@env) }.should.raise(TestError)
      @env['mail.sent'].should.be == true
    end

    if TEST_SMTP && ! TEST_SMTP.empty?
      specify 'sends mail' do
        mailer =
          Rack::MailExceptions.new(@app) do |mail|
            mail.config.merge! TEST_SMTP
          end
        lambda { mailer.call(@env) }.should.raise(TestError)
        @env['mail.sent'].should.be == true
      end
    else
      STDERR.puts 'WARN: Skipping SMTP tests (edit test/mail_settings.rb to enable)'
    end

  end
rescue LoadError => boom
  STDERR.puts "WARN: Skipping Rack::MailExceptions tests (tmail not installed)"
end