Contents

require 'spec_helper'
module Alf
  module Operator::Relational
    describe Summarize do
        
      let(:operator_class){ Summarize }
      it_should_behave_like("An operator class")
        
      let(:input) {[
        {:a => "via_reader", :time => 2},
        {:a => "via_method", :time => 1},
        {:a => "via_method", :time => 2},
        {:a => "via_reader", :time => 4},
        {:a => "via_method", :time => 1},
      ]}
  
      let(:expected) {[
        {:a => "via_method", :time_sum => 4, :time_max => 2, :time_avg => 4.0/3},
        {:a => "via_reader", :time_sum => 6, :time_max => 4, :time_avg => 6.0/2},
      ]}
  
      let(:aggs){{:time_sum => Aggregator.sum{ time },
                  :time_max => Aggregator.max{ time },
                  :time_avg => Aggregator.avg{ time }}} 

      subject{ operator.to_a.sort{|t1,t2| t1[:a] <=> t2[:a]} }
  
      describe "without allbut" do
        
        describe "When factored with commandline args" do
          let(:aggs){ ["--", "a", "--", "time_sum", "sum{ time }", "time_max", "max{ time }", "time_avg", "avg{ time }"] }
          let(:operator){ Summarize.run(aggs) }
          before{ operator.pipe(input) }
          it { should == expected }
        end
    
        describe "When factored with Lispy" do
          let(:operator){ Lispy.summarize(input, [:a], aggs) }
          it { should == expected }
        end

      end
  
      describe "with allbut" do
        
        describe "When factored with commandline args" do
          let(:aggs){ ["--allbut", "--", "time", "--", "time_sum", "sum{ time }", "time_max", "max{ time }", "time_avg", "avg{ time }"] }
          let(:operator){ Summarize.run(aggs) }
          before{ operator.pipe(input) }
          it { should == expected }
        end
    
        describe "When factored with Lispy" do
          let(:operator){ Lispy.summarize(input, [:time], aggs, :allbut => true) }
          it { should == expected }
        end

      end
  
    end 
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
alf-0.10.1	spec/unit/operator/relational/test_summarize.rb
alf-0.10.0	spec/unit/operator/relational/test_summarize.rb