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libfringe/tests/generator.rs

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// This file is part of libfringe, a low-level green threading library.
// Copyright (c) whitequark <whitequark@whitequark.org>
// See the LICENSE file included in this distribution.
extern crate fringe;
use fringe::OsStack;
use fringe::generator::Generator;
#[test]
fn generator() {
let stack = OsStack::new(0).unwrap();
let mut gen = Generator::new(stack, move |yielder| {
for i in 1..4 {
yielder.generate(i);
}
});
assert_eq!(gen.next(), Some(1));
assert_eq!(gen.next(), Some(2));
assert_eq!(gen.next(), Some(3));
assert_eq!(gen.next(), None);
}
#[test]
fn move_after_new() {
let stack = OsStack::new(0).unwrap();
let mut gen = Generator::new(stack, move |yielder| {
for i in 1..4 {
yielder.generate(i);
}
});
assert_eq!(gen.next(), Some(1));
#[inline(never)]
fn rest(mut gen: Generator<u32, OsStack>) {
assert_eq!(gen.next(), Some(2));
assert_eq!(gen.next(), Some(3));
assert_eq!(gen.next(), None);
}
rest(gen);
}