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Contents
require 'spec_helper' describe Datapipes::Tube do describe 'composable' do let(:tube_a) do Class.new(Datapipes::Tube) do def run(data) data + 2 end end.new end let(:tube_b) do Class.new(Datapipes::Tube) do def run(data) data * 3 end end.new end let(:tube_c) do Class.new(Datapipes::Tube) do def run(data) data + 4 end end.new end subject { tube_a >> tube_b >> tube_c } it 'composes' do expect(subject.run(4)).to eq 22 end describe 'associative law' do let(:a) { (tube_a >> tube_b) >> tube_c } let(:b) { tube_a >> (tube_b >> tube_c) } it 'keeps' do expect(a.run(5)).to eq b.run(5) end end end end
Version data entries
6 entries across 6 versions & 1 rubygems