require_relative '../../spec_helper'

ruby_version_is ""..."3.4" do
  require 'bigdecimal'

  describe "BigDecimal#nonzero?" do

    it "returns self if self doesn't equal zero" do
      # documentation says, it returns true. (04/10/08)
      e2_plus = BigDecimal("2E40001")
      e3_minus = BigDecimal("3E-20001")
      infinity = BigDecimal("Infinity")
      infinity_minus = BigDecimal("-Infinity")
      nan = BigDecimal("NaN")
      infinity.nonzero?.should equal(infinity)
      infinity_minus.nonzero?.should equal(infinity_minus)
      nan.nonzero?.should equal(nan)
      e3_minus.nonzero?.should equal(e3_minus)
      e2_plus.nonzero?.should equal(e2_plus)
    end

    it "returns nil otherwise" do
      # documentation states, it should return false. (04/10/08)
      really_small_zero = BigDecimal("0E-200000000")
      really_big_zero = BigDecimal("0E200000000000")
      really_small_zero.nonzero?.should == nil
      really_big_zero.nonzero?.should == nil
      BigDecimal("0.000000000000000000000000").nonzero?.should == nil
    end

  end
end
