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require 'spec_helper.rb'
describe 'explicitly convertable null object' do
let(:null_class) do
Naught.build(&:define_explicit_conversions)
end
subject(:null) { null_class.new }
it 'defines common explicit conversions to return zero values' do
expect(null.to_s).to eq('')
expect(null.to_a).to eq([])
expect(null.to_i).to eq(0)
expect(null.to_f).to eq(0.0)
if RUBY_VERSION >= '2.0'
expect(null.to_h).to eq({})
elsif RUBY_VERSION >= '1.9'
expect(null.to_c).to eq(Complex(0))
expect(null.to_r).to eq(Rational(0))
end
end
end
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