spec/unit/veritas/algebra/difference/each_spec.rb in veritas-0.0.2 vs spec/unit/veritas/algebra/difference/each_spec.rb in veritas-0.0.3
- old
+ new
@@ -1,29 +1,28 @@
require 'spec_helper'
-describe 'Veritas::Algebra::Difference#each' do
+describe Algebra::Difference, '#each' do
subject { object.each { |tuple| yields << tuple } }
- let(:klass) { Algebra::Difference }
- let(:header) { [ [ :id, Integer ] ] }
- let(:left) { Relation.new(header, [ [ 1 ] ]) }
- let(:object) { klass.new(left, right) }
- let(:yields) { [] }
+ let(:header) { [ [ :id, Integer ] ] }
+ let(:left) { Relation.new(header, [ [ 1 ] ]) }
+ let(:object) { described_class.new(left, right) }
+ let(:yields) { [] }
context 'with relations having similar bodies' do
let(:right) { left.dup }
- it_should_behave_like 'a command method'
+ it_should_behave_like 'an #each method'
it 'yields no tuples' do
expect { subject }.to_not change { yields.dup }
end
end
context 'with relations having different bodies' do
let(:right) { Relation.new(header, [ [ 2 ] ]) }
- it_should_behave_like 'a command method'
+ it_should_behave_like 'an #each method'
it 'yields each tuple' do
expect { subject }.to change { yields.dup }.
from([]).
to([ [ 1 ] ])