ruby--ruby/test/mkmf/test_signedness.rb

# frozen_string_literal: false
require_relative 'base'

class TestMkmfSignedness < TestMkmf
  def test_typeof_builtin
    bug4144 = '[ruby-dev:42731]'
    [["", "-1"], ["signed ", "-1"], ["unsigned ", "+1"]].each do |signed, expect|
      %w[short int long].each do |type|
        assert_equal(expect.to_i, mkmf {check_signedness(signed+type)}, mkmflog(bug4144))
      end
    end
  end

  def test_typeof_typedef
    [["", "-1"], ["signed ", "-1"], ["unsigned ", "+1"]].each do |signed, expect|
      %w[short int long].each do |type|
        open("confdefs.h", "w") {|f|
          f.puts "typedef #{signed}#{type} test1_t;"
        }
        $defs.clear
        assert_equal(expect.to_i, mkmf {check_signedness("test1_t", "confdefs.h")}, MKMFLOG)
        assert_include($defs, "-DSIGNEDNESS_OF_TEST1_T=#{expect}")
      end
    end
  ensure
    File.unlink("confdefs.h")
  end
end