require_relative '../../spec_helper'

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

  describe "BigDecimal#sign" do

    it "defines several constants for signs" do
      # are these really correct?
      BigDecimal::SIGN_POSITIVE_INFINITE.should == 3
      BigDecimal::SIGN_NEGATIVE_INFINITE.should == -3
      BigDecimal::SIGN_POSITIVE_ZERO.should == 1
      BigDecimal::SIGN_NEGATIVE_ZERO.should == -1
      BigDecimal::SIGN_POSITIVE_FINITE.should == 2
      BigDecimal::SIGN_NEGATIVE_FINITE.should == -2
    end

    it "returns positive value if BigDecimal greater than 0" do
      BigDecimal("1").sign.should == BigDecimal::SIGN_POSITIVE_FINITE
      BigDecimal("1E-20000000").sign.should == BigDecimal::SIGN_POSITIVE_FINITE
      BigDecimal("1E200000000").sign.should == BigDecimal::SIGN_POSITIVE_FINITE
      BigDecimal("Infinity").sign.should == BigDecimal::SIGN_POSITIVE_INFINITE
    end

    it "returns negative value if BigDecimal less than 0" do
      BigDecimal("-1").sign.should == BigDecimal::SIGN_NEGATIVE_FINITE
      BigDecimal("-1E-9990000").sign.should == BigDecimal::SIGN_NEGATIVE_FINITE
      BigDecimal("-1E20000000").sign.should == BigDecimal::SIGN_NEGATIVE_FINITE
      BigDecimal("-Infinity").sign.should == BigDecimal::SIGN_NEGATIVE_INFINITE
    end

    it "returns positive zero if BigDecimal equals positive zero" do
      BigDecimal("0").sign.should == BigDecimal::SIGN_POSITIVE_ZERO
      BigDecimal("0E-200000000").sign.should == BigDecimal::SIGN_POSITIVE_ZERO
      BigDecimal("0E200000000").sign.should == BigDecimal::SIGN_POSITIVE_ZERO
    end

    it "returns negative zero if BigDecimal equals negative zero" do
      BigDecimal("-0").sign.should == BigDecimal::SIGN_NEGATIVE_ZERO
      BigDecimal("-0E-200000000").sign.should == BigDecimal::SIGN_NEGATIVE_ZERO
      BigDecimal("-0E200000000").sign.should == BigDecimal::SIGN_NEGATIVE_ZERO
    end

    it "returns BigDecimal::SIGN_NaN if BigDecimal is NaN" do
      BigDecimal("NaN").sign.should == BigDecimal::SIGN_NaN
    end

  end
end
