how do you test that Rails mailer credentials are valid?

Question

I\'ve got a mailer sending through a GMail account, and I want to test that ActionMailer can actually log in to GMail\'s SMTP server with the credentials I\'ve given it. What\'s

Answer 1

smtp = Net::SMTP.new settings[:address], settings[:port]
smtp.enable_starttls_auto if settings[:enable_starttls_auto]
smtp.start(settings[:domain]) do
  expect {
    smtp.authenticate settings[:user_name], settings[:password], settings[:authentication]
  }.to_not raise_error
end

Calling authenticate will raise a Net::SMTPAuthenticationError if the authentication fails.

Otherwise, it will return a Net::SMTP::Response, and calling status on the response will return "235".