optimizable_spec.rb in veritas-optimizer-0.0.4

- old
+ new

@@ -1,42 +1,29 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Optimizer::Algebra::Rename::UnoptimizedOperand, '#optimizable?' do
   subject { object.optimizable? }
 
   let(:header)   { Relation::Header.new([ [ :id, Integer ] ]) }
   let(:base)     { Relation.new(header, [ [ 1 ] ].each)       }
   let(:relation) { operand.rename(aliases)                    }
+  let(:aliases)  { { :id => :other_id }                       }
   let(:object)   { described_class.new(relation)              }
 
   before do
     object.operation.should be_kind_of(Algebra::Rename)
   end
 
-  context 'when the operand and aliases are optimizable' do
-    let(:aliases) { { :other_id => :another_id }                  }
-    let(:operand) { base.project(header).rename(:id => :other_id) }
+  context 'when the operand is optimizable' do
+    let(:operand) { base.rename({}) }
 
     it { should be(true) }
   end
 
-  context 'when the operand is optimizable, but the aliases are not optimizable' do
-    let(:aliases) { { :id => :other_id } }
-    let(:operand) { base.project(header) }
-
-    it { should be(true) }
-  end
-
-  context 'when the operand is not optimizable, but the aliases are optimizable' do
-    let(:aliases) { { :other_id => :another_id }  }
-    let(:operand) { base.rename(:id => :other_id) }
-
-    it { should be(true) }
-  end
-
-  context 'when the operand and aliases are not optimizable' do
-    let(:aliases) { { :id => :other_id } }
-    let(:operand) { base                 }
+  context 'when the operand is not optimizable' do
+    let(:operand) { base }
 
     it { should be(false) }
   end
 end