Hi Jon,
Before refactoring to use ParameterizedMailers, I had the following code:
AppointmentMailer.reminder(@appointment, @user).deliver_later
with the corresponding test:
expect(AppointmentMailer).to(receive(:reminder).with(appointment, user)).
and_return(appointment_reminder_email)
Once I switched to ParameterizedMailers, my code changed to:
AppointmentMailer.with(appointment: @appointment, recipient: @user).reminder
.deliver_later
With this change, the Mailer is invoked with the .with() method, which
means the test will not trigger the receive(:reminder). I tried doing
something like this:
expect(AppointmentMailer).to(receive(:with).with(appointment: appointment,
recipient: user)).and_return(parameterized_appointment_mailer)
However this didn't work as intended because the .with() method returns a
new Parameterized::Mailer. I wish to write a test that checks that the
parameters were passed to the AppointmentMailer and that the reminder
method was called and returned the correct object ( in this example that
would be the appointment_reminder_email).
The minitest assert method is useful because it accepts the parameters as
arguments:
def test_parameterized_email
assert_enqueued_email_with AppointmentMailer, :welcome,
args: {appointment: appointment, recipient: user} do
AppointmentMailer.with(appointment: appointment, recipient:
user).reminder.deliver_later
end
end
Does this clarify my use-case?
If there is a better way to test my Mailers in general, please let me know!
Best,
Gleb
On Wednesday, 13 February 2019 18:14:30 UTC+1, Jon Rowe wrote:
>
> Hi Gleb
>
> What are you unable to test about them? ParameterizedMailers should act as
> normal Mailers under test (as we don’t test how they’re created, only the
> result) and you can see a basic “MailerSpec” here
> https://relishapp.com/rspec/rspec-rails/v/3-8/docs/mailer-specs.
>
> We do also have Job specs,
> https://relishapp.com/rspec/rspec-rails/v/3-8/docs/job-specs/job-spec,
> and coming soon (unreleased but you could use by pointing rspec-rails at
> GitHub) we’ll have specific helpers for asserting mailer jobs are queued
> (e.g. have_enqueued)
>
> Is that of any help?
>
> Jon Rowe
> ---------------------------
> [email protected] <javascript:>
> jonrowe.co.uk
>
> On 12 February 2019 at 15:13, [email protected] <javascript:>
> wrote:
>
> Hello,
>
> Parameterized Mailers
> <https://api.rubyonrails.org/v5.1/classes/ActionMailer/Parameterized.html>
> were added in Rails 5.1. I would like to use them in my project, but I have
> not being able to write tests for them using RSpec.
> Minitest provides the test helper method assert_enqueued_email_with
> (documented
> here
> <https://api.rubyonrails.org/classes/ActionMailer/TestHelper.html#method-i-assert_enqueued_email_with>).
>
> Is there an equivalent in RSpec?
>
> Thanks,
> Gleb
>
>
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