Fix ConfirmController.

The instance variable isn't set where the view can access it on first
call - use the helper_method instead.

app/views/hyrax/confirm/state.html.erb

@@ -7,7 +7,7 @@
     <p>Would you like to change the state of all of the attached volumes to have the same state?</p>
   </div>
   <div class="form-actions panel-footer">
-    <%= button_to "Yes, update them", main_app.copy_state_hyrax_confirm_path(@curation_concern), class: 'btn btn-primary' %>
-    <%= link_to "No, I'll update them manually", [main_app, @curation_concern], class: 'btn' %>
+    <%= button_to "Yes, update them", main_app.copy_state_hyrax_confirm_path(curation_concern), class: 'btn btn-primary' %>
+    <%= link_to "No, I'll update them manually", [main_app, curation_concern], class: 'btn' %>
   </div>
 </div>

app/views/hyrax/confirm/visibility.html.erb

@@ -7,7 +7,7 @@
     <p>Would you like to change the visibility of all of the attached volumes to have the same visibility?</p>
   </div>
   <div class="form-actions panel-footer">
-    <%= button_to "Yes, update them", main_app.copy_visibility_hyrax_confirm_path(@curation_concern), class: 'btn btn-primary' %>
-    <%= link_to "No, I'll update them manually", [main_app, @curation_concern], class: 'btn' %>
+    <%= button_to "Yes, update them", main_app.copy_visibility_hyrax_confirm_path(curation_concern), class: 'btn btn-primary' %>
+    <%= link_to "No, I'll update them manually", [main_app, curation_concern], class: 'btn' %>
   </div>
 </div>

spec/controllers/hyrax/confirm_controller_spec.rb

@@ -11,6 +11,20 @@
     sign_in user
   end
 
+  describe "#state" do
+    render_views
+    it "renders" do
+      get :state, params: { id: parent.id }
+    end
+  end
+
+  describe "#visibility" do
+    render_views
+    it "renders" do
+      get :visibility, params: { id: parent.id }
+    end
+  end
+
   describe '#copy_state' do
     it 'copies state from the parent to the member' do
       expect {