Rails邮件测试不解释URL助手

Question

I've got a password resets mailer and I'd like to be able to do the following in my tests:

assert_match edit_password_reset_path(user.password_reset_token), mail.body.encoded
# undefined method `edit_password_reset_path' for #<UserMailerTest:0xb6c2ea0>

But it blows up because of the URL helper, so I have to do this instead to make my test run:

assert_match "\/password_resets\/#{user.password_reset_token}\/edit", mail.body.encoded

Which works fine, but don't look, or feel, so good.

It seems that ActionMailer::TestCase doesn't know about the path because the following fails:

assert_match "#{edit_password_reset_path(user.password_reset_token)}", mail.body.encoded
# undefined method `edit_password_reset_path' for #<UserMailerTest:0xb6c2ec8>

How do you access URL helpers like edit_password_reset_path(user.password_reset_token) in test-unit?

I'm switching over from RSpec where this was never an issue, the helpers just worked and I'd do this:

it "sends the user a password reset url" do
  mail.body.encoded.should match(edit_password_reset_url(user.password_reset_token))
end

Answer 1

For anyone who is interested in solving this in the future, you can stick this in your test file:

include Rails.application.routes.url_helpers

I don't know if this is thee way to do this, and I'm not sure how much overhead it adds to your tests, but it works ok.