File: integer_spec.rb

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require_relative '../../spec_helper'

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

  it "is the class of both small and large integers" do
    42.class.should equal(Integer)
    bignum_value.class.should equal(Integer)
  end
end

describe "Integer#integer?" do
  it "returns true for Integers" do
    0.integer?.should == true
    -1.integer?.should == true
    bignum_value.integer?.should == true
  end
end