1 files changed, 16 insertions, 0 deletions
diff --git a/railties/test/unit/engine_test.rb b/railties/test/unit/engine_test.rb
new file mode 100644
index 0000000000..977f46ecea
--- /dev/null
+++ b/railties/test/unit/engine_test.rb
@@ -0,0 +1,16 @@
+require 'abstract_unit'
+
+module Unit
+  class EngineTest < ActiveSupport::TestCase
+    it "reports routes as available only if they're actually present" do
+      engine = Class.new(Rails::Engine) do
+        def initialize(*args)
+          @routes = nil
+          super
+        end
+      end
+
+      assert !engine.routes?
+    end
+  end
+end