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41 lines
1.3 KiB
Markdown
41 lines
1.3 KiB
Markdown
# Test If deliver_later Is Called For A Mailer
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There are many ways to test in your controller whether emails are going out. A
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concise and quick way to check is just to see if a `deliver_later` happened.
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Depending on how your test environment is configured, this could look one of
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two ways.
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If you have your `queue_adapter` set to
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[`:inline`](https://api.rubyonrails.org/classes/ActiveJob/QueueAdapters/InlineAdapter.html),
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then a `deliver_later` will happen synchronously. So, the email will
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immediately end up in the `deliveries` box.
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```ruby
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expect {
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post :password_reset, params: valid_params
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}.to change { ActionMailer::Base.deliveries.count }.by(1)
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```
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The behavior is a bit different if your `queue_adapter` is set to something
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like
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[`:test`](https://api.rubyonrails.org/classes/ActiveJob/QueueAdapters/TestAdapter.html).
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In this case, the email is going to be queued in the app's job queue. Since it
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is not immediately being sent, the expectation will have to be about the job
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queue instead.
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```ruby
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expect {
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post :password_reset, params: valid_params
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}.to have_enqueued_job(ActionMailer::DeliveryJob)
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```
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We can even dig into more specifics like this:
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```ruby
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expect {
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post :password_reset, params: valid_params
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}.to have_enqueued_job(ActionMailer::DeliveryJob)
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.with('UserMailer', 'password_reset', 'deliver_later', Integer)
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```
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