linting fix

app/mailers/application_mailer.rb

@@ -9,23 +9,22 @@ class ApplicationMailer < Mail::Notify::Mailer
       "95adafaf-0920-4623-bddc-340853c047af",
     )
 
-    rescue_from Notifications::Client::RequestError do
-      # WARNING: this needs to be a block, otherwise the exception will not be
-      # re-raised and we will not be notified via Sentry, and the job will not retry.
-      #
-      # @see https://github.com/rails/rails/issues/39018
-      if respond_to?(:headers)
-        recipient_email = headers['To'].value
-        MailDeliveryFailure.create!(
-          recipient_email: recipient_email
-        )
-      end
-
-      raise
+  rescue_from Notifications::Client::RequestError do
+    # WARNING: this needs to be a block, otherwise the exception will not be
+    # re-raised and we will not be notified via Sentry, and the job will not retry.
+    #
+    # @see https://github.com/rails/rails/issues/39018
+    if respond_to?(:headers)
+      recipient_email = headers["To"].value
+      MailDeliveryFailure.create!(recipient_email:)
     end
 
-    def notify_email(headers)
-      headers = headers.merge(rails_mailer: mailer_name, rails_mail_template: action_name)
-      view_mail(GOVUK_NOTIFY_TEMPLATE_ID, headers)
-    end
+    raise
+  end
+
+  def notify_email(headers)
+    headers =
+      headers.merge(rails_mailer: mailer_name, rails_mail_template: action_name)
+    view_mail(GOVUK_NOTIFY_TEMPLATE_ID, headers)
+  end
 end

spec/mailers/application_mailer_spec.rb

@@ -1,30 +1,33 @@
-require 'rails_helper'
+# frozen_string_literal: true
+
+require "rails_helper"
 
 RSpec.describe ApplicationMailer, :sidekiq do
-  describe '.rescue_from' do
-    fake_mailer = Class.new(ApplicationMailer) do
-      self.delivery_method = :notify
-      self.notify_settings = {
-        api_key: 'not-real-e1f4c969-b675-4a0d-a14d-623e7c2d3fd8-24fea27b-824e-4259-b5ce-1badafe98150',
-      }
+  describe ".rescue_from" do
+    fake_mailer =
+      Class.new(ApplicationMailer) do
+        self.delivery_method = :notify
+        self.notify_settings = {
+          api_key:
+            "not-real-e1f4c969-b675-4a0d-a14d-623e7c2d3fd8-24fea27b-824e-4259-b5ce-1badafe98150",
+        }
 
-      def test_notify_error
-        notify_email(
-          to: '[email protected]',
-          subject: 'Some subject',
-        )
+        def test_notify_error
+          notify_email(to: "[email protected]", subject: "Some subject")
+        end
       end
-    end
 
-    it 'marks errors as failed and re-raises the error' do
-      stub_request(:post, 'https://api.notifications.service.gov.uk/v2/notifications/email')
-        .to_return(status: 404)
+    it "marks errors as failed and re-raises the error" do
+      stub_request(
+        :post,
+        "https://api.notifications.service.gov.uk/v2/notifications/email",
+      ).to_return(status: 404)
 
-      expect {
-        fake_mailer.test_notify_error.deliver_now
-      }.to raise_error(Notifications::Client::NotFoundError)
+      expect { fake_mailer.test_notify_error.deliver_now }.to raise_error(
+        Notifications::Client::NotFoundError,
+      )
 
-      expect(Email.last.delivery_status).to eql('notify_error')
+      expect(Email.last.delivery_status).to eql("notify_error")
     end
   end
 end