Module: ActionMailer::TestHelper
- Included in:
- ActionMailer::TestCase::Behavior
- Defined in:
- lib/action_mailer/test_helper.rb
Overview
Provides helper methods for testing Action Mailer, including #assert_emails and #assert_no_emails
Instance Method Summary collapse
-
#assert_emails(number) ⇒ Object
Asserts that the number of emails sent matches the given number.
-
#assert_no_emails(&block) ⇒ Object
Assert that no emails have been sent.
Instance Method Details
#assert_emails(number) ⇒ Object
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_now
end
end
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# File 'lib/action_mailer/test_helper.rb', line 28 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 |
#assert_no_emails(&block) ⇒ Object
Assert that no emails have been sent.
def test_emails
assert_no_emails
ContactMailer.welcome.deliver_now
assert_emails 1
end
If a block is passed, that block should not cause any emails to be sent.
def test_emails_again
assert_no_emails do
# No emails should be sent from this block
end
end
Note: This assertion is simply a shortcut for:
assert_emails 0
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# File 'lib/action_mailer/test_helper.rb', line 58 def assert_no_emails(&block) assert_emails 0, &block end |