1 files changed, 9 insertions, 0 deletions
diff --git a/railties/test/application/configuration_test.rb b/railties/test/application/configuration_test.rb
index a3e1916494..fc21d4e5fd 100644
--- a/railties/test/application/configuration_test.rb
+++ b/railties/test/application/configuration_test.rb
@@ -44,5 +44,14 @@ module ApplicationTests
         assert_equal Pathname.new("#{app_path}/app"), Rails.application.root
       end
     end
+
+    test "config.active_support.bare does not require all of ActiveSupport" do
+      add_to_config "config.frameworks = []; config.active_support.bare = true"
+
+      Dir.chdir("#{app_path}/app") do
+        require "#{app_path}/config/environment"
+        assert_raises(NoMethodError, /day/) { 1.day }
+      end
+    end
   end
 end
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