spec/ruby/core/fixnum/fixnum_spec.rb


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

describe "Fixnum" do
  it "includes Comparable" do
    Fixnum.include?(Comparable).should == true
  end

  it ".allocate raises a TypeError" do
    lambda do
      Fixnum.allocate
    end.should raise_error(TypeError)
  end

  it ".new is undefined" do
    lambda do
      Fixnum.new
    end.should raise_error(NoMethodError)
  end

  ruby_version_is '2.4' do
    it "is unified into Integer" do
      Fixnum.should equal(Integer)
    end

    it "is deprecated" do
      -> {
        Fixnum
      }.should complain(/constant ::Fixnum is deprecated/)
    end
  end
end