File: test_optarg.rb

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# frozen_string_literal: false
require_relative 'test_optparse'

class TestOptionParser::OptArg < TestOptionParser
  def setup
    super
    @opt.def_option("-x[VAL]") {|x| @flag = x}
    @opt.def_option("--option[=VAL]") {|x| @flag = x}
    @opt.def_option("--regexp[=REGEXP]", Regexp) {|x| @reopt = x}
    @reopt = nil
  end

  def test_short
    assert_equal(%w"", no_error {@opt.parse!(%w"-x")})
    assert_equal(nil, @flag)
    @flag = false
    assert_equal(%w"foo", no_error {@opt.parse!(%w"-x foo")})
    assert_equal(nil, @flag)
    assert_equal(%w"", no_error {@opt.parse!(%w"-xfoo")})
    assert_equal("foo", @flag)
    assert_equal(%w"", no_error {@opt.parse!(%w"-x=")})
    assert_equal("=", @flag)
  end

  def test_abbrev
    assert_equal(%w"", no_error {@opt.parse!(%w"-o")})
    assert_equal(nil, @flag)
    @flag = false
    assert_equal(%w"foo", no_error {@opt.parse!(%w"-o foo")})
    assert_equal(nil, @flag)
    assert_equal(%w"", no_error {@opt.parse!(%w"-ofoo")})
    assert_equal("foo", @flag)
    assert_equal(%w"", no_error {@opt.parse!(%w"-o=")})
    assert_equal("=", @flag)
  end

  def test_long
    assert_equal(%w"", no_error {@opt.parse!(%w"--opt")})
    assert_equal(nil, @flag)
    assert_equal(%w"foo", no_error {@opt.parse!(%w"--opt= foo")})
    assert_equal("", @flag)
    assert_equal(%w"", no_error {@opt.parse!(%w"--opt=foo")})
    assert_equal("foo", @flag)
    assert_equal(%w"foo", no_error {@opt.parse!(%w"--opt foo")})
    assert_equal(nil, @flag)
  end
end