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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]} }
context "--no-allbut" do
context "with Lispy" do
let(:operator){ Lispy.summarize(input, [:a], aggs) }
it { should eq(expected) }
end
end # --no-allbut
context "--allbut" do
context "with Lispy" do
let(:operator){ Lispy.summarize(input, [:time], aggs, :allbut => true) }
it { should eq(expected) }
end
end # --allbut
end
end
end
Version data entries
5 entries across 5 versions & 1 rubygems