File: construction_spec.rb

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

describe Immutable::Set do
  describe '.set' do
    context 'with no values' do
      it 'returns the empty set' do
        S.empty.should be_empty
        S.empty.should equal(Immutable::EmptySet)
      end
    end

    context 'with a list of values' do
      it 'is equivalent to repeatedly using #add' do
        S['A', 'B', 'C'].should eql(S.empty.add('A').add('B').add('C'))
      end
    end
  end
end