Add specs

lib/delayed_job.rb

@@ -16,7 +16,7 @@
 ActiveSupport.on_load(:action_mailer) do
  require 'delayed/performable_mailer'
  ActionMailer::Base.extend(Delayed::DelayMail)
- ActionMailer::Parameterized::Mailer.include(Delayed::DelayMail)
+ ActionMailer::Parameterized::Mailer.include(Delayed::DelayMail) if defined?(ActionMailer::Parameterized::Mailer)
 end
 
 module Delayed

spec/performable_mailer_spec.rb

@@ -40,3 +40,29 @@ def signup(email)
  end
  end
 end
+
+if defined?(ActionMailer::Parameterized::Mailer)
+ describe ActionMailer::Parameterized::Mailer do
+ describe 'delay' do
+ it 'enqueues a PerformableEmail job' do
+ expect do
+ job = MyMailer.with(foo: 1, bar: 2).delay.signup('[email protected]')
+ expect(job.payload_object.class).to eq(Delayed::PerformableMailer)
+ expect(job.payload_object.object.class).to eq(ActionMailer::Parameterized::Mailer)
+ expect(job.payload_object.object.instance_variable_get('@mailer')).to eq(MyMailer)
+ expect(job.payload_object.object.instance_variable_get('@params')).to eq(foo: 1, bar: 2)
+ expect(job.payload_object.method_name).to eq(:signup)
+ expect(job.payload_object.args).to eq(['[email protected]'])
+ end.to change { Delayed::Job.count }.by(1)
+ end
+ end
+
+ describe 'delay on a mail object' do
+ it 'raises an exception' do
+ expect do
+ MyMailer.with(foo: 1, bar: 2).signup('[email protected]').delay
+ end.to raise_error(RuntimeError)
+ end
+ end
+ end
+end