Contents

require File.expand_path('../../spec_helper', File.dirname(__FILE__))

require 'hamster/list'

describe Hamster do

  describe "#cycle" do

    it "is lazy" do
      lambda { Hamster.stream { fail }.cycle }.should_not raise_error
    end

    describe "with an empty list" do

      before do
        original = Hamster.list
        @result = original.cycle
      end

      it "returns an empty list" do
        @result.should be_empty
      end

    end

    describe "with a non-empty list" do

      before do
        @original = Hamster.list("A", "B", "C")
        @result = @original.cycle
      end

      it "preserves the original" do
        @original.should == Hamster.list("A", "B", "C")
      end

      it "infinitely cycles through all values" do
        @result.take(7).should == Hamster.list("A", "B", "C", "A", "B", "C", "A")
      end

    end

  end

end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
hamster-0.2.7	spec/hamster/list/cycle_spec.rb
hamster-0.2.6	spec/hamster/list/cycle_spec.rb