spec/ruby/core/integer/odd_spec.rb


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require File.expand_path('../../../spec_helper', __FILE__)

describe "Integer#odd?" do
  it "returns true when self is an odd number" do
    (-2).odd?.should be_false
    (-1).odd?.should be_true

    0.odd?.should be_false
    1.odd?.should be_true
    2.odd?.should be_false

    bignum_value(0).odd?.should be_false
    bignum_value(1).odd?.should be_true

    (-bignum_value(0)).odd?.should be_false
    (-bignum_value(1)).odd?.should be_true
  end
end