File: keys_spec.rb

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ruby-immutable-ruby 0.1.0-2
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require 'spec_helper'

describe Immutable::Hash do
  describe '#keys' do
    let(:hash) { H['A' => 'aye', 'B' => 'bee', 'C' => 'see'] }

    it 'returns the keys as a set' do
      hash.keys.should eql(S['A', 'B', 'C'])
    end

    it 'returns frozen String keys' do
      hash.keys.each { |s| s.should be_frozen }
    end
  end
end