instance method assert_emails

Ruby on Rails edge

Available in: v2.2.3 v2.3.18 v3.0.20 v3.1.12 v3.2.22.5 v4.0.13 v4.1.16 v4.2.11.3 v5.0.7.2 v5.1.7 v5.2.8.1 v6.0.6.1 v6.1.7.10 v7.0.10 v7.1.6 v7.2.4 v8.0.5.1 v8.1.4 edge

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assert_emails(number, &block)

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

“‘ def test_emails

assert_emails 0
ContactMailer.welcome.deliver_now
assert_emails 1
ContactMailer.welcome.deliver_now
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.welcome.deliver_now
end

assert_emails 2 do
  ContactMailer.welcome.deliver_now
  ContactMailer.welcome.deliver_later
end

end “‘

Parameters

number req
block block
Source
# File actionmailer/lib/action_mailer/test_helper.rb, line 39
    def assert_emails(number, &block)
      if block_given?
        diff = capture_emails(&block).length
        assert_equal number, diff, "#{number} emails expected, but #{diff} were sent"
      else
        assert_equal number, ActionMailer::Base.deliveries.size
      end
    end

Defined in actionmailer/lib/action_mailer/test_helper.rb line 39 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActionMailer::TestHelper

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