24 lines
602 B
Ruby
24 lines
602 B
Ruby
|
require 'spec_helper.rb'
|
||
|
|
|
||
|
|
describe 'explicitly convertable null object' do
|
||
|
|
let(:null_class) do
|
||
|
|
Naught.build do |b|
|
||
|
|
b.define_explicit_conversions
|
||
|
|
end
|
||
|
|
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
|