3rdparty/modules/inifile/spec/unit/puppet/util/external_iterator_spec.rb

   1 require 'spec_helper'
   2 require 'puppet/util/external_iterator'
   3
   4 describe Puppet::Util::ExternalIterator do
   5   let(:subject) { Puppet::Util::ExternalIterator.new(["a", "b", "c"]) }
   6
   7   context "#next" do
   8     it "should iterate over the items" do
   9       subject.next.should == ["a", 0]
  10       subject.next.should == ["b", 1]
  11       subject.next.should == ["c", 2]
  12     end
  13   end
  14
  15   context "#peek" do
  16     it "should return the 0th item repeatedly" do
  17       subject.peek.should == ["a", 0]
  18       subject.peek.should == ["a", 0]
  19     end
  20
  21     it "should not advance the iterator, but should reflect calls to #next" do
  22       subject.peek.should == ["a", 0]
  23       subject.peek.should == ["a", 0]
  24       subject.next.should == ["a", 0]
  25       subject.peek.should == ["b", 1]
  26       subject.next.should == ["b", 1]
  27       subject.peek.should == ["c", 2]
  28       subject.next.should == ["c", 2]
  29       subject.peek.should == [nil, nil]
  30       subject.next.should == [nil, nil]
  31     end
  32   end
  33
  34
  35 end