Adds tab descriptions

app/helpers/results_helper.rb

@@ -2,4 +2,26 @@ module ResultsHelper
   def results_summary(hits)
     hits.to_i >= 10_000 ? '10,000+ results' : "#{number_with_delimiter(hits)} results"
   end
+
+  # Provides a description for the current tab in search results.
+  def tab_description
+    case params[:tab]
+    when 'all'
+      'All MIT Libraries sources'
+    when 'cdi'
+      'Journal and newspaper articles, book chapters, and more'
+    when 'alma', 'timdex_alma'
+      'Books, journals, streaming and physical media, and more'
+    when 'primo'
+      'Articles, books, chapters, streaming and physical media, and more'
+    when 'aspace'
+      'Archives, manuscripts, and other unique materials related to MIT'
+    when 'timdex'
+      'Digital collections, images, documents, and more from MIT Libraries'
+    when 'website'
+      'Information about the library: events, news, services, and more'
+    else
+      Rails.logger.error "Unknown tab parameter in `tab_description` helper: #{params[:tab]}"
+    end
+  end
 end

app/views/search/results.html.erb

@@ -19,7 +19,7 @@
       <% elsif @results.present? && @errors.blank? %>
 
         <h2 class="results-context"><%= results_summary(@pagination[:hits]) %></h2>
-        <p class="results-context-description">From all MIT Libraries sources</p>    
+        <p class="results-context-description"><%= tab_description %></p>    
         <div id="results-layout-wrapper">  
           <main id="results">
             <ol class="results-list use" start="<%= @pagination[:start] %>">             

test/controllers/search_controller_test.rb

@@ -715,7 +715,8 @@ def source_filter_count(controller)
     assert_response :success
     assert_select '.results-context', text: /10 results/
     assert_select '.results-context-description', count: 1
-    assert_select '.results-context-description', text: /From all MIT Libraries sources/
+    assert_select '.results-context-description',
+                  text: /Articles, books, chapters, streaming and physical media, and more/
   end
 
   test 'primo results shows continuation partial when page exceeds API offset limit' do

test/helpers/results_helper_test.rb

@@ -17,4 +17,38 @@ class ResultsHelperTest < ActionView::TestCase
     hits = 9000
     assert_equal '9,000 results', results_summary(hits)
   end
+
+  test 'result helper handles tab descriptions for tabs based on params hash' do
+    params[:tab] = 'all'
+    description = 'All MIT Libraries sources'
+    assert_equal description, tab_description
+
+    params[:tab] = 'cdi'
+    description = 'Journal and newspaper articles, book chapters, and more'
+    assert_equal description, tab_description
+
+    params[:tab] = 'alma'
+    description = 'Books, journals, streaming and physical media, and more'
+    assert_equal description, tab_description
+
+    params[:tab] = 'timdex_alma'
+    description = 'Books, journals, streaming and physical media, and more'
+    assert_equal description, tab_description
+
+    params[:tab] = 'primo'
+    description = 'Articles, books, chapters, streaming and physical media, and more'
+    assert_equal description, tab_description
+
+    params[:tab] = 'aspace'
+    description = 'Archives, manuscripts, and other unique materials related to MIT'
+    assert_equal description, tab_description
+
+    params[:tab] = 'timdex'
+    description = 'Digital collections, images, documents, and more from MIT Libraries'
+    assert_equal description, tab_description
+
+    params[:tab] = 'website'
+    description = 'Information about the library: events, news, services, and more'
+    assert_equal description, tab_description
+  end
 end