hanami-mailer/spec/hanami/mailer/delivery_spec.rb

RSpec.describe Hanami::Mailer do
  describe '.deliver' do
    before do
      Hanami::Mailer.deliveries.clear
    end

    it 'can deliver with specified charset' do
      CharsetMailer.deliver(charset: charset = 'iso-2022-jp')

      mail = Hanami::Mailer.deliveries.first
      expect(mail.charset).to             eq(charset)
      expect(mail.parts.first.charset).to eq(charset)
    end

    it "raises error when 'from' isn't specified" do
      expect { MissingFromMailer.deliver }.to raise_error(Hanami::Mailer::MissingDeliveryDataError)
    end

    it "raises error when 'to' isn't specified" do
      expect { MissingToMailer.deliver }.to raise_error(Hanami::Mailer::MissingDeliveryDataError)
    end

    describe 'test delivery with hardcoded values' do
      before do
        WelcomeMailer.deliver
        @mail = Hanami::Mailer.deliveries.first
      end

      after do
        Hanami::Mailer.deliveries.clear
      end

      it 'delivers the mail' do
        expect(Hanami::Mailer.deliveries.length).to eq(1)
      end

      it 'sends the correct information' do
        expect(@mail.from).to    eq(['noreply@sender.com'])
        expect(@mail.to).to      eq(['noreply@recipient.com', 'owner@recipient.com'])
        expect(@mail.cc).to      eq(['cc@recipient.com'])
        expect(@mail.bcc).to     eq(['bcc@recipient.com'])
        expect(@mail.subject).to eq('Welcome')
      end

      it 'has the correct templates' do
        expect(@mail.html_part.to_s).to include(%(template))
        expect(@mail.text_part.to_s).to include(%(template))
      end

      it 'interprets the prepare statement' do
        attachment = @mail.attachments['invoice.pdf']

        expect(attachment).to be_kind_of(Mail::Part)

        expect(attachment).to be_attachment
        expect(attachment).to_not be_inline
        expect(attachment).to_not be_multipart

        expect(attachment.filename).to eq('invoice.pdf')

        expect(attachment.content_type).to match('application/pdf')
        expect(attachment.content_type).to match('filename=invoice.pdf')
      end
    end

    describe 'test delivery with methods' do
      before do
        @user = User.new('Name', 'student@deigirls.com')
        MethodMailer.deliver(user: @user)

        @mail = Hanami::Mailer.deliveries.first
      end

      after do
        Hanami::Mailer.deliveries.clear
      end

      it 'delivers the mail' do
        expect(Hanami::Mailer.deliveries.length).to eq(1)
      end

      it 'sends the correct information' do
        expect(@mail.from).to    eq(["hello-#{@user.name.downcase}@example.com"])
        expect(@mail.to).to      eq([@user.email])
        expect(@mail.subject).to eq("Hello, #{@user.name}")
      end
    end

    describe 'multipart' do
      after do
        Hanami::Mailer.deliveries.clear
      end

      it 'delivers all the parts by default' do
        WelcomeMailer.deliver

        mail = Hanami::Mailer.deliveries.first
        body = mail.body.encoded

        expect(body).to include(%(<h1>Hello World!</h1>))
        expect(body).to include(%(This is a txt template))
      end

      it 'can deliver only the text part' do
        WelcomeMailer.deliver(format: :txt)

        mail = Hanami::Mailer.deliveries.first
        body = mail.body.encoded

        expect(body).to_not include(%(<h1>Hello World!</h1>))
        expect(body).to     include(%(This is a txt template))
      end

      it 'can deliver only the html part' do
        WelcomeMailer.deliver(format: :html)

        mail = Hanami::Mailer.deliveries.first
        body = mail.body.encoded

        expect(body).to     include(%(<h1>Hello World!</h1>))
        expect(body).to_not include(%(This is a txt template))
      end
    end

    describe 'custom delivery' do
      before do
        @options = options = { deliveries: [] }

        # Hanami::Mailer.reset!
        # Hanami::Mailer.configure do
        #   delivery_method MandrillDeliveryMethod, options
        # end.load!

        WelcomeMailer.deliver

        @mail = options.fetch(:deliveries).first
      end

      it 'delivers the mail'
      # it 'delivers the mail' do
      #   @options.fetch(:deliveries).length.must_equal 1
      # end

      # it 'sends the correct information' do
      #   @mail.from.must_equal ['noreply@sender.com']
      #   @mail.to.must_equal ['noreply@recipient.com']
      #   @mail.subject.must_equal "Welcome"
      # end

      # it 'has the correct templates' do
      #   @mail.html_part.to_s.must_include %(template)
      #   @mail.text_part.to_s.must_include %(template)
      # end

      # it 'interprets the prepare statement' do
      #   @mail.attachments['invoice.pdf'].wont_be_nil
      # end

      # it 'adds the attachment to the mail object' do
      #   @mail.attachments['render_mailer.html.erb'].wont_be_nil
      # end
    end
  end
end