method

assert_emails

v3.0.0 - Show latest stable - Class: ActionMailer::TestHelper

assert_emails(number)

public

Asserts that the number of emails sent matches the given number.

  def test_emails
    assert_emails 0
    ContactMailer.deliver_contact
    assert_emails 1
    ContactMailer.deliver_contact
    assert_emails 2
  end

If a block is passed, that block should cause the specified number of emails to be sent.

  def test_emails_again
    assert_emails 1 do
      ContactMailer.deliver_contact
    end

    assert_emails 2 do
      ContactMailer.deliver_contact
      ContactMailer.deliver_contact
    end
  end

# File actionmailer/lib/action_mailer/test_helper.rb, line 27
    def assert_emails(number)
      if block_given?
        original_count = ActionMailer::Base.deliveries.size
        yield
        new_count = ActionMailer::Base.deliveries.size
        assert_equal original_count + number, new_count, "#{number} emails expected, but #{new_count - original_count} were sent"
      else
        assert_equal number, ActionMailer::Base.deliveries.size
      end
    end

1Note

Asserting Emails

thewinner · May 6, 2011

--setup_mailer.rb in config/initializers --rails g mailer MailerName --methods in mailer_name.rb --files in views/mailer_name --MailerName.method(@object).deliver in object controller

assert_emails

1Note

Asserting Emails

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