#!/usr/bin/ruby
do {
    class ArgParse () {
      class Option (long, bar=99) < ArgParse {
        method foo {
            self.bar
        }
      }
      has bar = 42
      method option(name) {
          Option(name)
      }
    }
    var opt = ArgParse().option(:f)
    assert_eq(opt.foo, 99)
    assert_eq(opt.bar, 99)
}
do {
    class ArgParse () {
      class Option (long) < ArgParse {
        method foo {
            self.bar
        }
      }
      has bar = 42
      method option(name) {
          Option(name)
      }
    }
    var opt = ArgParse().option(:f)
    assert_eq(opt.foo, 42)
    assert_eq(opt.bar, 42)
}
do {
    class ArgParse () {
      class Option (long) {
        method foo {
            self.bar
        }
      }
      has bar = 42
      method option(name) {
          Option(name)
      }
    }
    var opt = ArgParse().option(:f)
    var error = 0
    try {
        opt.foo     # must fail
    }
    catch {
        ++error
    }
    assert_eq(error, 1)
}
say "** Test passed!"