spec/moneta/builder_spec.rb in moneta-1.2.1 vs spec/moneta/builder_spec.rb in moneta-1.3.0

@@ -23,6 +23,28 @@
         use :Lock
         use :Lock
       end.build
     end.to raise_error /Please check/
   end
+
+  it 'dups options before passing them to each middleware' do
+    my_adapter = Class.new do
+      def initialize(options)
+        throw "a is missing" unless options.delete(:a)
+      end
+    end
+
+    my_middleware = Class.new do
+      def initialize(backend, options)
+        throw "a is missing" unless options.delete(:a)
+      end
+    end
+
+    options = { a: 1 }
+    Moneta::Builder.new do
+      use my_middleware, options
+      adapter my_adapter, options
+    end.build
+
+    expect(options).to include(a: 1)
+  end
 end