Implement action arguments logging

spec/support/shared_action.rb

@@ -54,8 +54,20 @@ module Producer::Core
     end
 
     describe '#to_s' do
-      it 'returns a word' do
-        expect(action.to_s).to eq action.name
+      it 'includes action name' do
+        expect(action.to_s).to match /\A#{action.name}/
+      end
+
+      it 'includes arguments inspection' do
+        expect(action.to_s).to match /#{Regexp.quote(arguments.inspect)}\z/
+      end
+
+      context 'when arguments inspection is very long' do
+        let(:arguments)   { [:some, :arguments] * 32 }
+
+        it 'summarizes arguments inspection' do
+          expect(action.to_s.length).to be < 70
+        end
       end
     end
   end