spec/ruby/core/integer/complement_spec.rb


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require_relative '../../spec_helper'

describe "Integer#~" do
  context "fixnum" do
    it "returns self with each bit flipped" do
      (~0).should == -1
      (~1221).should == -1222
      (~-2).should == 1
      (~-599).should == 598
    end
  end

  context "bignum" do
    it "returns self with each bit flipped" do
      (~bignum_value(48)).should == -18446744073709551665
      (~(-bignum_value(21))).should == 18446744073709551636
      (~bignum_value(1)).should == -18446744073709551618
    end
  end
end