Update user mailer specs to check that white labelling does not affect these emails

Move tests to separate file for reuse in other emails

Pass on :mail symbol and obtain the mail-object using public_send() to call it with different names

spec/mailers/user_mailer_spec.rb

@@ -4,14 +4,19 @@ require 'spec_helper'
 
 RSpec.describe Spree::UserMailer do
   let(:user) { build(:user) }
+  let(:order) { build(:order_with_totals_and_distribution) }
+
+  before { ActionMailer::Base.deliveries.clear }
 
   describe '#signup_confirmation' do
+    subject(:mail) { Spree::UserMailer.signup_confirmation(user) }
+
     it "sends email when given a user" do
-      Spree::UserMailer.signup_confirmation(user).deliver_now
+      mail.deliver_now
       expect(ActionMailer::Base.deliveries.count).to eq(1)
     end
 
-    describe "user locale" do
+    context "user locale handling" do
       around do |example|
         original_default_locale = I18n.default_locale
         I18n.default_locale = 'pt'
@@ -21,16 +26,21 @@ RSpec.describe Spree::UserMailer do
 
       it "sends email in user locale when user locale is defined" do
         user.locale = 'es'
-        Spree::UserMailer.signup_confirmation(user).deliver_now
+        mail.deliver_now
         expect(ActionMailer::Base.deliveries.first.body).to include "Gracias por unirte"
       end
 
       it "sends email in default locale when user locale is not available" do
         user.locale = 'cn'
-        Spree::UserMailer.signup_confirmation(user).deliver_now
+        mail.deliver_now
         expect(ActionMailer::Base.deliveries.first.body).to include "Obrigada por juntar-se"
       end
     end
+
+    context "white labelling" do
+      it_behaves_like 'email with inactive white labelling', :mail
+      it_behaves_like 'non-customer facing email with active white labelling', :mail
+    end
   end
 
   describe "#confirmation_instructions" do
@@ -44,7 +54,6 @@ RSpec.describe Spree::UserMailer do
     context 'when the language is English' do
       it 'sends an email with the translated subject' do
         mail.deliver_now
-
         expect(ActionMailer::Base.deliveries.first.subject).to include(
           "Please confirm your OFN account"
         )
@@ -56,19 +65,28 @@ RSpec.describe Spree::UserMailer do
 
       it 'sends an email with the translated subject' do
         mail.deliver_now
-
         expect(ActionMailer::Base.deliveries.first.subject).to include(
           "Por favor, confirma tu cuenta de OFN"
         )
       end
     end
+
+    context "white labelling" do
+      it_behaves_like 'email with inactive white labelling', :mail
+      it_behaves_like 'non-customer facing email with active white labelling', :mail
+    end
   end
 
   # adapted from https://github.com/spree/spree_auth_devise/blob/70737af/spec/mailers/user_mailer_spec.rb
   describe '#reset_password_instructions' do
-    describe 'message contents' do
-      subject(:mail) { described_class.reset_password_instructions(user, nil).deliver_now }
+    subject(:mail) { described_class.reset_password_instructions(user, nil).deliver_now }
 
+    context "white labelling" do
+      it_behaves_like 'email with inactive white labelling', :mail
+      it_behaves_like 'non-customer facing email with active white labelling', :mail
+    end
+
+    describe 'message contents' do
       context 'subject includes' do
         it 'translated devise instructions' do
           expect(mail.subject).to include "Reset password instructions"

spec/support/shared_examples/email_header_examples.rb

@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+RSpec.shared_examples 'email with inactive white labelling' do |mail|
+  it 'always displays the OFN header with logo' do
+    expect(public_send(mail).body).to include(ContentConfig.url_for(:logo))
+  end
+end
+
+RSpec.shared_examples 'non-customer facing email with active white labelling' do |mail|
+  context 'when hide OFN navigation is enabled for the distributor of the order' do
+    before do
+      allow(order.distributor).to receive(:hide_ofn_navigation).and_return(true)
+    end
+
+    it 'still displays the OFN header with logo' do
+      expect(public_send(mail).body).to include(ContentConfig.url_for(:logo))
+    end
+  end
+end
+
+RSpec.shared_examples 'customer facing email with active white labelling' do |mail|
+  context 'when hide OFN navigation is enabled for the distributor of the order' do
+    before do
+      allow(order.distributor).to receive(:hide_ofn_navigation).and_return(true)
+    end
+
+    it 'does not display the OFN header and logo' do
+      expect(public_send(mail).body).not_to include(ContentConfig.url_for(:logo))
+    end
+  end
+end