spec/rley/formatter/debug_spec.rb in rley-0.7.03 vs spec/rley/formatter/debug_spec.rb in rley-0.7.04

@@ -1,5 +1,7 @@
+# frozen_string_literal: true
+
 require_relative '../../spec_helper'
 require 'stringio'
 
 require_relative '../../../lib/rley/lexical/token'
 require_relative '../../../lib/rley/engine'
@@ -72,14 +74,14 @@
         engine.use_grammar(grammar_sppf)
         parse_result = engine.parse(sample_tokens)
         engine.to_pforest(parse_result)
       end
 
-      let(:destination) { StringIO.new('', 'w') }
+      let(:destination) { StringIO.new(+'', 'w') }
 
       context 'Standard creation & initialization:' do
         it 'should be initialized with an IO argument' do
-          expect { Debug.new(StringIO.new('', 'w')) }.not_to raise_error
+          expect { Debug.new(StringIO.new(+'', 'w')) }.not_to raise_error
         end
 
         it 'should know its output destination' do
           instance = Debug.new(destination)
           expect(instance.output).to eq(destination)