Add class on documents container for the current view type

app/views/catalog/_document_list.html.erb

@@ -1,4 +1,4 @@
-<% # container for all documents in index view -%>
-<div id="documents">
+<% # container for all documents in index list view -%>
+<div id="documents" class="documents-<%= document_index_view_type %>">
   <%= render documents, :as => :document %>
 </div>

spec/views/catalog/_document_list.html.erb_spec.rb

@@ -1,8 +1,13 @@
 require 'spec_helper'
 
-describe "/catalog/_document_list.html.erb" do  
-
-
+describe "catalog/_document_list", type: :view do  
 
+  before do
+    allow(view).to receive_messages(document_index_view_type: "some-view", documents: [])
+  end
 
+  it "should include a class for the current view" do
+    render
+    expect(rendered).to have_selector(".documents-some-view")
+  end
 end