Shuffle jobs_to_be_done questions

Shuffling select dropdown options because it's been noted that were
getting a lot of "first option" and "last option" responses.

part of:
https://gitlab.com/gitlab-org/gitlab/-/issues/338226

ee/app/helpers/ee/registrations_helper.rb

@@ -10,6 +10,10 @@ module EE
       super.merge(api_path: suggestion_path)
     end
 
+    def shuffled_jobs_to_be_done_options
+      jobs_to_be_done_options.shuffle.append([_('A different reason'), 'other'])
+    end
+
     private
 
     def redirect_path
@@ -18,5 +22,16 @@ module EE
         URI.parse(redirect_to).path if redirect_to
       end
     end
+
+    def jobs_to_be_done_options
+      [
+        _('I want to learn the basics of Git'),
+        _('I want to move my repository to GitLab from somewhere else'),
+        _('I want to store my code'),
+        _('I want to explore GitLab to see if it’s worth switching to'),
+        _('I want to use GitLab CI with my existing repository'),
+        _('I’m joining my team who’s already on GitLab')
+      ]
+    end
   end
 end

ee/app/views/registrations/welcome/_jobs_to_be_done.html.haml

@@ -4,13 +4,7 @@
       .form-group.col-sm-12
         = label_tag :jobs_to_be_done, _("I'm signing up for GitLab because:")
         = select_tag :jobs_to_be_done,
-                options_for_select([_('I want to learn the basics of Git'),
-                  _('I want to move my repository to GitLab from somewhere else'),
-                  _('I want to store my code'),
-                  _('I want to explore GitLab to see if it’s worth switching to'),
-                  _('I want to use GitLab CI with my existing repository'),
-                  _('I’m joining my team who’s already on GitLab'),
-                  [_('A different reason'), 'other']]),
+                options_for_select(shuffled_jobs_to_be_done_options),
                 include_blank: _('Please select...'), class: 'form-control js-jobs-to-be-done-dropdown'
     .row
       .form-group.col-sm-12.js-jobs-to-be-done-other-group.hidden

ee/spec/helpers/ee/registrations_helper_spec.rb

@@ -8,4 +8,26 @@ RSpec.describe EE::RegistrationsHelper do
       expect(helper.signup_username_data_attributes.keys).to include(:api_path)
     end
   end
+
+  describe '#shuffled_jobs_to_be_done_options' do
+    subject { helper.shuffled_jobs_to_be_done_options }
+
+    let(:array_double) { double(:array) }
+
+    it 'uses shuffle' do
+      allow(helper).to receive(:jobs_to_be_done_options).and_return(array_double)
+
+      expect(array_double).to receive(:shuffle).and_return([])
+
+      subject
+    end
+
+    it 'has a number of options' do
+      expect(subject.count).to eq(7)
+    end
+
+    it '"other" is always the last option' do
+      expect(subject.last).to eq(['A different reason', 'other'])
+    end
+  end
 end