Correctly display 'request accessible format' option

- attachments on publications should only show this option when 'accessible' is false and email address is supplied
- including tests accordingly

app/presenters/publication_presenter.rb

@@ -14,7 +14,10 @@ def documents
     return [] unless content_item["details"]["attachments"]
 
     docs = content_item["details"]["attachments"].select { |a| a["locale"] == locale }
-    docs.each { |t| t["type"] = "html" unless t["content_type"] }
+    docs.each do |doc|
+      doc["type"] = "html" unless doc["content_type"]
+      doc["alternative_format_contact_email"] = nil if doc["accessible"] == true
+    end
   end
 
   def featured_attachments

test/integration/publication_test.rb

@@ -71,6 +71,95 @@ class PublicationTest < ActionDispatch::IntegrationTest
     end
   end
 
+  test "renders accessible format option when accessible is false and email is supplied" do
+    overrides = {
+      "details" => {
+        "attachments" => [{
+          "accessible" => false,
+          "alternative_format_contact_email" => "[email protected]",
+          "attachment_type" => "file",
+          "id" => "PUBLIC_1392629965.pdf",
+          "title" => "Number of ex-regular service personnel now part of FR20",
+          "url" => "https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/315163/PUBLIC_1392629965.pdf",
+          "command_paper_number" => "",
+          "hoc_paper_number" => "",
+          "isbn" => "",
+          "unique_reference" => "",
+          "unnumbered_command_paper" => false,
+          "unnumbered_hoc_paper" => false,
+          "content_type" => "application/pdf",
+          "file_size" => 932,
+          "filename" => "PUBLIC_1392629965.pdf",
+          "number_of_pages" => 2,
+          "locale" => "en",
+        }],
+      },
+    }
+    setup_and_visit_content_item("publication-with-featured-attachments", overrides)
+    within "#documents" do
+      assert page.has_text?("Request an accessible format")
+    end
+  end
+
+  test "doesn't render accessible format option when accessible is false and email is not supplied" do
+    overrides = {
+      "details" => {
+        "attachments" => [{
+          "accessible" => false,
+          "attachment_type" => "file",
+          "id" => "PUBLIC_1392629965.pdf",
+          "title" => "Number of ex-regular service personnel now part of FR20",
+          "url" => "https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/315163/PUBLIC_1392629965.pdf",
+          "command_paper_number" => "",
+          "hoc_paper_number" => "",
+          "isbn" => "",
+          "unique_reference" => "",
+          "unnumbered_command_paper" => false,
+          "unnumbered_hoc_paper" => false,
+          "content_type" => "application/pdf",
+          "file_size" => 932,
+          "filename" => "PUBLIC_1392629965.pdf",
+          "number_of_pages" => 2,
+          "locale" => "en",
+        }],
+      },
+    }
+    setup_and_visit_content_item("publication-with-featured-attachments", overrides)
+    within "#documents" do
+      assert page.has_no_text?("Request an accessible format")
+    end
+  end
+
+  test "doesn't render accessible format option when accessible is true and email is supplied" do
+    overrides = {
+      "details" => {
+        "attachments" => [{
+          "accessible" => true,
+          "alternative_format_contact_email" => "[email protected]",
+          "attachment_type" => "file",
+          "id" => "PUBLIC_1392629965.pdf",
+          "title" => "Number of ex-regular service personnel now part of FR20",
+          "url" => "https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/315163/PUBLIC_1392629965.pdf",
+          "command_paper_number" => "",
+          "hoc_paper_number" => "",
+          "isbn" => "",
+          "unique_reference" => "",
+          "unnumbered_command_paper" => false,
+          "unnumbered_hoc_paper" => false,
+          "content_type" => "application/pdf",
+          "file_size" => 932,
+          "filename" => "PUBLIC_1392629965.pdf",
+          "number_of_pages" => 2,
+          "locale" => "en",
+        }],
+      },
+    }
+    setup_and_visit_content_item("publication-with-featured-attachments", overrides)
+    within "#documents" do
+      assert page.has_no_text?("Request an accessible format")
+    end
+  end
+
   test "withdrawn publication" do
     setup_and_visit_content_item("withdrawn_publication")
     assert page.has_css?("title", text: "[Withdrawn]", visible: false)