#!/usr/bin/ruby
class String {
    method hello (a, b) {
        "hello with #{a} -- #{b}"
    }
    method hello(z) {
        "hello with #{z}"
    }
    method lc(Num z) {
        "lc with num #{z}"
    }
    method lc(Str f) {
        "lc with str #{f}"
    }
}
assert_eq("foo".hello(42), "hello with 42")
assert_eq("foo".hello('x','y'), "hello with x -- y")
assert_eq("FOO".lc(99), "lc with num 99")
assert_eq("FOO".lc("zzz"), "lc with str zzz")
assert_eq("FOO".lc, "foo")
say "** Test passed!"