#!/usr/bin/ruby
class Friend(name) {
    method hi {
        "Hello, #{name}!"
    }
}
class Example(a) {
    has t = sqrt(a)
    has v = try {   Friend("Agent #{a}") } catch { 'undefined' }
    has u = try { NotDefined("foo #{a}") } catch { 'undefined' }
    has w = Friend("Actor #{a + 1}")
    has y = t+1
    has b = 0
    has c = 0
    method init {
        b      = (y + self.t - 1)
        self.c = (t + self.y + 1)
    }
    method foo {
        self.bar
    }
    method bar {
        log(t)
    }
    method baz(tmp = sqrt(2)) {
        tmp + 1
    }
    method qux(z = t) {
        z + 1
    }
    method zoo(r = self.t) {
        r - 1
    }
    method zzz(f = self.bar) {
        f + 1
    }
    method friend {
        v.name
    }
}
var obj = Example(99)
assert_eq(obj.t, 99.sqrt)
assert_eq(obj.y, 1 + 99.sqrt)
assert_eq(obj.bar, 99.sqrt.log)
assert_eq(obj.baz, 2.sqrt + 1)
assert_eq(obj.qux, 99.sqrt + 1)
assert_eq(obj.zoo, 99.sqrt - 1)
assert_eq(obj.zzz, 99.sqrt.log + 1)
assert_eq(obj.b, obj.t + obj.y - 1)
assert_eq(obj.c, obj.t + obj.y + 1)
assert_eq(obj.friend, "Agent 99")
assert_eq(obj.v.hi, "Hello, Agent 99!")
assert_eq(obj.w.hi, "Hello, Actor 100!")
assert_eq(obj.t, 99.sqrt)
obj.t = 1234
assert_eq(obj.t, 1234)
assert_eq(obj.v.hi, "Hello, Agent 99!")
assert_eq(Example(7).v.hi, "Hello, Agent 7!")
assert_eq(obj.v.hi, "Hello, Agent 99!")
assert_eq(obj.w.hi, "Hello, Actor 100!")
assert_eq(obj.u, 'undefined')
say "** Test passed!"