Use superscript star for a rubygem version with a tooltip

app/helpers/versions_helper.rb

@@ -6,7 +6,6 @@ def version_date_tag(version)
     if version.rely_on_built_at?
       klass << "tooltip__text"
       data.merge!(tooltip: t("versions.index.imported_gem_version_notice", import_date: nice_date_for(Version::RUBYGEMS_IMPORT_DATE)))
-      text << " [?]"
     end
 
     content_tag(:small, text, class: klass, data: data)
@@ -15,4 +14,13 @@ def version_date_tag(version)
   def version_authored_date(version)
     "- #{nice_date_for(version.authored_at)}"
   end
+
+  def version_number(version)
+    return version.number unless version.rely_on_built_at?
+
+    content_tag(:div) do
+      concat version.number
+      concat content_tag(:sup, "*")
+    end
+  end
 end

app/views/versions/_version.html.erb

@@ -1,5 +1,5 @@
 <li class="gem__version-wrap">
-  <%= link_to version.number, rubygem_version_path(version.rubygem, version.slug), :class => 't-list__item' %>
+  <%= link_to version_number(version), rubygem_version_path(version.rubygem, version.slug), :class => 't-list__item gem__version__number' %>
   <%= version_date_tag(version) %>
   <% if version.platformed? %>
     <span class="gem__version__date platform"><%= version.platform %></span>

test/functional/versions_controller_test.rb

@@ -67,19 +67,22 @@ class VersionsControllerTest < ActionController::TestCase
     setup do
       @built_at = Date.parse("2000-01-01")
       rubygem = create(:rubygem)
-      create(:version, rubygem: rubygem, created_at: Version::RUBYGEMS_IMPORT_DATE, built_at: @built_at)
+      create(:version, number: "1.1.2", rubygem: rubygem, created_at: Version::RUBYGEMS_IMPORT_DATE, built_at: @built_at)
       get :index, params: { rubygem_id: rubygem.name }
     end
 
     should respond_with :success
 
-    should "show imported versions authored_at dates with an asterisk" do
+    should "show imported version number with an superscript asterisk and a tooltip" do
       tooltip_text = <<~NOTICE.squish
         This gem version was imported to RubyGems.org on July 25, 2009.
         The date displayed was specified by the author in the gemspec.
       NOTICE
 
-      assert_select ".gem__version__date", text: "- January 01, 2000 [?]", count: 1 do |elements|
+      assert_select ".gem__version__number", text: "1.1.2*", count: 1
+      assert_select ".gem__version__number sup", text: "*", count: 1
+
+      assert_select ".gem__version__date", text: "- January 01, 2000", count: 1 do |elements|
         version = elements.first
         assert_equal(tooltip_text, version["data-tooltip"])
       end