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12 Mar 2015, 17:54
Jaakko M (1 post)


I have a question about integration testing. When I run “rake test” I get no errors.

But when I run “rake test:integration” I get:

  1) Error:
NoMethodError: undefined method `to' for nil:NilClass
    test/integration/user_stories_test.rb:50:in `block in <class:UserStoriesTest>'

1 tests, 17 assertions, 0 failures, 1 errors, 0 skips

In the log file “test.log” I can see that an email has been sent and I also get an actual emai from the test.

In my config/environments/test.rb file the delivery method for Action Mailer is set to “:test”:

# Tell Action Mailer not to deliver emails to the real world.
  # The :test delivery method accumulates sent emails in the
  # ActionMailer::Base.deliveries array.
  config.action_mailer.delivery_method = :test

So why do I get an email when I run “rake test:integration”? And why is ActionMailer::Base.deliveries empty after this?

The integration test fails because mail is nil:

mail = ActionMailer::Base.deliveries.last
assert_equal [""],
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