spec/unit/solve/demand_spec.rb in solve-3.1.1 vs spec/unit/solve/demand_spec.rb in solve-4.0.0

@@ -1,8 +1,8 @@
-require 'spec_helper'
+require "spec_helper"
 
 describe Solve::Demand do
-  let(:solver) { double('solver') }
+  let(:solver) { double("solver") }
   let(:name) { "league" }
 
   describe "#initialize" do
     it "accepts a string for the constraint parameter" do
       demand = Solve::Demand.new(solver, name, "= 0.0.1")