File: helper.rb

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# frozen_string_literal: false
require "test/unit"
require "bigdecimal"
require 'rbconfig/sizeof'

module TestBigDecimalBase
  if RbConfig::SIZEOF.key?("int64_t")
    SIZEOF_DECDIG = RbConfig::SIZEOF["int32_t"]
    BASE = 1_000_000_000
    BASE_FIG = 9
  else
    SIZEOF_DECDIG = RbConfig::SIZEOF["int16_t"]
    BASE = 1000
    BASE_FIG = 4
  end

  def setup
    @mode = BigDecimal.mode(BigDecimal::EXCEPTION_ALL)
    BigDecimal.mode(BigDecimal::EXCEPTION_ALL, true)
    BigDecimal.mode(BigDecimal::EXCEPTION_UNDERFLOW, true)
    BigDecimal.mode(BigDecimal::EXCEPTION_OVERFLOW, true)
    BigDecimal.mode(BigDecimal::ROUND_MODE, BigDecimal::ROUND_HALF_UP)
    BigDecimal.limit(0)
  end

  def teardown
    [BigDecimal::EXCEPTION_INFINITY, BigDecimal::EXCEPTION_NaN,
     BigDecimal::EXCEPTION_UNDERFLOW, BigDecimal::EXCEPTION_OVERFLOW].each do |mode|
      BigDecimal.mode(mode, !(@mode & mode).zero?)
    end
  end

  def under_gc_stress
    stress, GC.stress = GC.stress, true
    yield
  ensure
    GC.stress = stress
  end
end