ruby_version_is "1.9" do
  describe "Rational#zero?" do
    it "returns true if the numerator is 0" do
      Rational(0,26).zero?.should be_true
    end

    it "returns true if the numerator is 0.0" do
      Rational(0.0,26).zero?.should be_true
    end

    it "returns false if the numerator isn't 0" do
      Rational(26).zero?.should be_false
    end
  end
end
