optimize_spec.rb in axiom-optimizer-0.1.1

- old
+ new

@@ -3,21 +3,19 @@
 require 'spec_helper'
 
 describe Optimizer::Algebra::Difference::EqualOperands, '#optimize' do
   subject { object.optimize }
 
-  let(:header)   { Relation::Header.coerce([ [ :id, Integer ] ])       }
-  let(:left)     { Relation.new(header, LazyEnumerable.new([ [ 1 ] ])) }
-  let(:right)    { Relation.new(header, LazyEnumerable.new([ [ 1 ] ])) }
-  let(:relation) { left.difference(right)                              }
-  let(:object)   { described_class.new(relation)                       }
+  let(:header)   { Relation::Header.coerce([[:id, Integer]])       }
+  let(:left)     { Relation.new(header, LazyEnumerable.new([[1]])) }
+  let(:right)    { Relation.new(header, LazyEnumerable.new([[1]])) }
+  let(:relation) { left.difference(right)                          }
+  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(header) }
-
-  its(:tuples) { should equal(relation) }
+  its(:header) { should be(header) }
 end