Show header and footer system messages in email

* Add email_header_and_footer_enabled flag to appearances table
* Set email_header_and_footer_enabled default value to false
* Add checkbox to appearance to toggle show header and footer in emails
* Add email_header_and_footer_enabled to allowed params in controller
* Add header and footer messages to the html and text email layouts
* Remove the color styling for emails header and footer
* Add empty_mailer layout for emails without layout,
to have the header and footer applied

1 files changed, 12 insertions, 13 deletions

diff --git a/spec/mailers/abuse_report_mailer_spec.rb b/spec/mailers/abuse_report_mailer_spec.rb
index bda892083b3..f96870cc112 100644
--- a/spec/mailers/abuse_report_mailer_spec.rb
+++ b/spec/mailers/abuse_report_mailer_spec.rb
@@ -4,25 +4,24 @@ describe AbuseReportMailer do
   include EmailSpec::Matchers
 
   describe '.notify' do
-    context 'with admin_notification_email set' do
-      before do
-        stub_application_setting(admin_notification_email: 'admin@example.com')
-      end
+    before do
+      stub_application_setting(admin_notification_email: 'admin@example.com')
+    end
 
-      it 'sends to the admin_notification_email' do
-        report = create(:abuse_report)
+    let(:report) { create(:abuse_report) }
+
+    subject { described_class.notify(report.id) }
 
-        mail = described_class.notify(report.id)
+    it_behaves_like 'appearance header and footer enabled'
+    it_behaves_like 'appearance header and footer not enabled'
 
-        expect(mail).to deliver_to 'admin@example.com'
+    context 'with admin_notification_email set' do
+      it 'sends to the admin_notification_email' do
+        is_expected.to deliver_to 'admin@example.com'
       end
 
       it 'includes the user in the subject' do
-        report = create(:abuse_report)
-
-        mail = described_class.notify(report.id)
-
-        expect(mail).to have_subject "#{report.user.name} (#{report.user.username}) was reported for abuse"
+        is_expected.to have_subject "#{report.user.name} (#{report.user.username}) was reported for abuse"
       end
     end