63 lines
1.3 KiB
Rust
63 lines
1.3 KiB
Rust
// This file is part of libfringe, a low-level green threading library.
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// Copyright (c) whitequark <whitequark@whitequark.org>
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// See the LICENSE file included in this distribution.
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extern crate fringe;
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use fringe::OsStack;
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use fringe::generator::Generator;
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#[test]
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fn generator() {
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let stack = OsStack::new(0).unwrap();
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let mut gen = Generator::new(stack, move |yielder| {
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for i in 1..4 {
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yielder.generate(i);
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}
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});
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assert_eq!(gen.next(), Some(1));
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assert_eq!(gen.next(), Some(2));
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assert_eq!(gen.next(), Some(3));
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assert_eq!(gen.next(), None);
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}
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#[test]
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fn move_after_new() {
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let stack = OsStack::new(0).unwrap();
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let mut gen = Generator::new(stack, move |yielder| {
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for i in 1..4 {
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yielder.generate(i);
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}
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});
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assert_eq!(gen.next(), Some(1));
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#[inline(never)]
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fn rest(mut gen: Generator<u32, OsStack>) {
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assert_eq!(gen.next(), Some(2));
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assert_eq!(gen.next(), Some(3));
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assert_eq!(gen.next(), None);
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}
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rest(gen);
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}
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#[test]
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#[should_panic]
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fn panic_safety() {
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struct Wrapper {
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gen: Generator<u32, OsStack>
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}
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impl Drop for Wrapper {
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fn drop(&mut self) {
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self.gen.next();
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}
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}
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let stack = OsStack::new(4 << 20).unwrap();
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let gen = Generator::new(stack, move |_yielder| {
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panic!("foo")
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});
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let mut wrapper = Wrapper { gen: gen };
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wrapper.gen.next();
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}
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