optimize_spec.rb in axiom-optimizer-0.1.1

- old
+ new

@@ -3,19 +3,17 @@
 require 'spec_helper'
 
 describe Optimizer::Algebra::Rename::EmptyOperand, '#optimize' do
   subject { object.optimize }
 
-  let(:operand)  { Relation::Empty.new([ [ :id, Integer ] ]) }
-  let(:relation) { operand.rename(:id => :other_id)          }
-  let(:object)   { described_class.new(relation)             }
+  let(:operand)  { Relation::Empty.new([[:id, Integer]]) }
+  let(:relation) { operand.rename(id: :other_id)         }
+  let(:object)   { described_class.new(relation)         }
 
   before do
-    object.should be_optimizable
+    expect(object).to be_optimizable
   end
 
   it { should be_kind_of(Relation::Empty) }
 
-  its(:header) { should equal(relation.header) }
-
-  its(:tuples) { should equal(relation) }
+  its(:header) { should be(relation.header) }
 end