1 files changed, 400 insertions, 0 deletions
diff --git a/third_party/rust/futures/tests_disabled/all.rs b/third_party/rust/futures/tests_disabled/all.rs
new file mode 100644
index 0000000000..a7a571040a
--- /dev/null
+++ b/third_party/rust/futures/tests_disabled/all.rs
@@ -0,0 +1,400 @@
+use futures::channel::oneshot::{self, Canceled};
+use futures::executor::block_on;
+use futures::future;
+use std::sync::mpsc::{channel, TryRecvError};
+
+// mod support;
+// use support::*;
+
+fn unselect<T, E, A, B>(r: Result<Either<(T, B), (T, A)>, Either<(E, B), (E, A)>>) -> Result<T, E> {
+    match r {
+        Ok(Either::Left((t, _))) | Ok(Either::Right((t, _))) => Ok(t),
+        Err(Either::Left((e, _))) | Err(Either::Right((e, _))) => Err(e),
+    }
+}
+
+#[test]
+fn result_smoke() {
+    fn is_future_v<A, B, C>(_: C)
+    where
+        A: Send + 'static,
+        B: Send + 'static,
+        C: Future<Item = A, Error = B>,
+    {
+    }
+
+    is_future_v::<i32, u32, _>(f_ok(1).map(|a| a + 1));
+    is_future_v::<i32, u32, _>(f_ok(1).map_err(|a| a + 1));
+    is_future_v::<i32, u32, _>(f_ok(1).and_then(Ok));
+    is_future_v::<i32, u32, _>(f_ok(1).or_else(Err));
+    is_future_v::<(i32, i32), u32, _>(f_ok(1).join(Err(3)));
+    is_future_v::<i32, u32, _>(f_ok(1).map(f_ok).flatten());
+
+    assert_done(|| f_ok(1), r_ok(1));
+    assert_done(|| f_err(1), r_err(1));
+    assert_done(|| result(Ok(1)), r_ok(1));
+    assert_done(|| result(Err(1)), r_err(1));
+    assert_done(|| ok(1), r_ok(1));
+    assert_done(|| err(1), r_err(1));
+    assert_done(|| f_ok(1).map(|a| a + 2), r_ok(3));
+    assert_done(|| f_err(1).map(|a| a + 2), r_err(1));
+    assert_done(|| f_ok(1).map_err(|a| a + 2), r_ok(1));
+    assert_done(|| f_err(1).map_err(|a| a + 2), r_err(3));
+    assert_done(|| f_ok(1).and_then(|a| Ok(a + 2)), r_ok(3));
+    assert_done(|| f_err(1).and_then(|a| Ok(a + 2)), r_err(1));
+    assert_done(|| f_ok(1).and_then(|a| Err(a as u32 + 3)), r_err(4));
+    assert_done(|| f_err(1).and_then(|a| Err(a as u32 + 4)), r_err(1));
+    assert_done(|| f_ok(1).or_else(|a| Ok(a as i32 + 2)), r_ok(1));
+    assert_done(|| f_err(1).or_else(|a| Ok(a as i32 + 2)), r_ok(3));
+    assert_done(|| f_ok(1).or_else(|a| Err(a + 3)), r_ok(1));
+    assert_done(|| f_err(1).or_else(|a| Err(a + 4)), r_err(5));
+    assert_done(|| f_ok(1).select(f_err(2)).then(unselect), r_ok(1));
+    assert_done(|| f_ok(1).select(Ok(2)).then(unselect), r_ok(1));
+    assert_done(|| f_err(1).select(f_ok(1)).then(unselect), r_err(1));
+    assert_done(|| f_ok(1).select(empty()).then(unselect), Ok(1));
+    assert_done(|| empty().select(f_ok(1)).then(unselect), Ok(1));
+    assert_done(|| f_ok(1).join(f_err(1)), Err(1));
+    assert_done(|| f_ok(1).join(Ok(2)), Ok((1, 2)));
+    assert_done(|| f_err(1).join(f_ok(1)), Err(1));
+    assert_done(|| f_ok(1).then(|_| Ok(2)), r_ok(2));
+    assert_done(|| f_ok(1).then(|_| Err(2)), r_err(2));
+    assert_done(|| f_err(1).then(|_| Ok(2)), r_ok(2));
+    assert_done(|| f_err(1).then(|_| Err(2)), r_err(2));
+}
+
+#[test]
+fn test_empty() {
+    fn empty() -> Empty<i32, u32> {
+        future::empty()
+    }
+
+    assert_empty(|| empty());
+    assert_empty(|| empty().select(empty()));
+    assert_empty(|| empty().join(empty()));
+    assert_empty(|| empty().join(f_ok(1)));
+    assert_empty(|| f_ok(1).join(empty()));
+    assert_empty(|| empty().or_else(move |_| empty()));
+    assert_empty(|| empty().and_then(move |_| empty()));
+    assert_empty(|| f_err(1).or_else(move |_| empty()));
+    assert_empty(|| f_ok(1).and_then(move |_| empty()));
+    assert_empty(|| empty().map(|a| a + 1));
+    assert_empty(|| empty().map_err(|a| a + 1));
+    assert_empty(|| empty().then(|a| a));
+}
+
+#[test]
+fn test_ok() {
+    assert_done(|| ok(1), r_ok(1));
+    assert_done(|| err(1), r_err(1));
+}
+
+#[test]
+fn flatten() {
+    fn ok<T: Send + 'static>(a: T) -> FutureResult<T, u32> {
+        future::ok(a)
+    }
+    fn err<E: Send + 'static>(b: E) -> FutureResult<i32, E> {
+        future::err(b)
+    }
+
+    assert_done(|| ok(ok(1)).flatten(), r_ok(1));
+    assert_done(|| ok(err(1)).flatten(), r_err(1));
+    assert_done(|| err(1u32).map(ok).flatten(), r_err(1));
+    assert_done(|| future::ok(future::ok(1)).flatten(), r_ok(1));
+    assert_empty(|| ok(empty::<i32, u32>()).flatten());
+    assert_empty(|| empty::<i32, u32>().map(ok).flatten());
+}
+
+#[test]
+fn smoke_oneshot() {
+    assert_done(
+        || {
+            let (c, p) = oneshot::channel();
+            c.send(1).unwrap();
+            p
+        },
+        Ok(1),
+    );
+    assert_done(
+        || {
+            let (c, p) = oneshot::channel::<i32>();
+            drop(c);
+            p
+        },
+        Err(Canceled),
+    );
+    let mut completes = Vec::new();
+    assert_empty(|| {
+        let (a, b) = oneshot::channel::<i32>();
+        completes.push(a);
+        b
+    });
+
+    let (c, mut p) = oneshot::channel::<i32>();
+    drop(c);
+    let res = panic_waker_lw(|lw| p.poll(lw));
+    assert!(res.is_err());
+    let (c, p) = oneshot::channel::<i32>();
+    drop(c);
+    let (tx, rx) = channel();
+    p.then(move |_| tx.send(())).forget();
+    rx.recv().unwrap();
+}
+
+#[test]
+fn select_cancels() {
+    let ((a, b), (c, d)) = (oneshot::channel::<i32>(), oneshot::channel::<i32>());
+    let ((btx, brx), (dtx, drx)) = (channel(), channel());
+    let b = b.map(move |b| {
+        btx.send(b).unwrap();
+        b
+    });
+    let d = d.map(move |d| {
+        dtx.send(d).unwrap();
+        d
+    });
+
+    let mut f = b.select(d).then(unselect);
+    // assert!(f.poll(&mut Task::new()).is_pending());
+    assert!(brx.try_recv().is_err());
+    assert!(drx.try_recv().is_err());
+    a.send(1).unwrap();
+    noop_waker_lw(|lw| {
+        let res = f.poll(lw);
+        assert!(res.ok().unwrap().is_ready());
+        assert_eq!(brx.recv().unwrap(), 1);
+        drop(c);
+        assert!(drx.recv().is_err());
+
+        let ((a, b), (c, d)) = (oneshot::channel::<i32>(), oneshot::channel::<i32>());
+        let ((btx, _brx), (dtx, drx)) = (channel(), channel());
+        let b = b.map(move |b| {
+            btx.send(b).unwrap();
+            b
+        });
+        let d = d.map(move |d| {
+            dtx.send(d).unwrap();
+            d
+        });
+
+        let mut f = b.select(d).then(unselect);
+        assert!(f.poll(lw).ok().unwrap().is_pending());
+        assert!(f.poll(lw).ok().unwrap().is_pending());
+        a.send(1).unwrap();
+        assert!(f.poll(lw).ok().unwrap().is_ready());
+        drop((c, f));
+        assert!(drx.recv().is_err());
+    })
+}
+
+#[test]
+fn join_cancels() {
+    let ((a, b), (c, d)) = (oneshot::channel::<i32>(), oneshot::channel::<i32>());
+    let ((btx, _brx), (dtx, drx)) = (channel(), channel());
+    let b = b.map(move |b| {
+        btx.send(b).unwrap();
+        b
+    });
+    let d = d.map(move |d| {
+        dtx.send(d).unwrap();
+        d
+    });
+
+    let mut f = b.join(d);
+    drop(a);
+    let res = panic_waker_lw(|lw| f.poll(lw));
+    assert!(res.is_err());
+    drop(c);
+    assert!(drx.recv().is_err());
+
+    let ((a, b), (c, d)) = (oneshot::channel::<i32>(), oneshot::channel::<i32>());
+    let ((btx, _brx), (dtx, drx)) = (channel(), channel());
+    let b = b.map(move |b| {
+        btx.send(b).unwrap();
+        b
+    });
+    let d = d.map(move |d| {
+        dtx.send(d).unwrap();
+        d
+    });
+
+    let (tx, rx) = channel();
+    let f = b.join(d);
+    f.then(move |_| {
+        tx.send(()).unwrap();
+        let res: Result<(), ()> = Ok(());
+        res
+    })
+    .forget();
+    assert!(rx.try_recv().is_err());
+    drop(a);
+    rx.recv().unwrap();
+    drop(c);
+    assert!(drx.recv().is_err());
+}
+
+#[test]
+fn join_incomplete() {
+    let (a, b) = oneshot::channel::<i32>();
+    let (tx, rx) = channel();
+    noop_waker_lw(|lw| {
+        let mut f = ok(1).join(b).map(move |r| tx.send(r).unwrap());
+        assert!(f.poll(lw).ok().unwrap().is_pending());
+        assert!(rx.try_recv().is_err());
+        a.send(2).unwrap();
+        assert!(f.poll(lw).ok().unwrap().is_ready());
+        assert_eq!(rx.recv().unwrap(), (1, 2));
+
+        let (a, b) = oneshot::channel::<i32>();
+        let (tx, rx) = channel();
+        let mut f = b.join(Ok(2)).map(move |r| tx.send(r).unwrap());
+        assert!(f.poll(lw).ok().unwrap().is_pending());
+        assert!(rx.try_recv().is_err());
+        a.send(1).unwrap();
+        assert!(f.poll(lw).ok().unwrap().is_ready());
+        assert_eq!(rx.recv().unwrap(), (1, 2));
+
+        let (a, b) = oneshot::channel::<i32>();
+        let (tx, rx) = channel();
+        let mut f = ok(1).join(b).map_err(move |_r| tx.send(2).unwrap());
+        assert!(f.poll(lw).ok().unwrap().is_pending());
+        assert!(rx.try_recv().is_err());
+        drop(a);
+        assert!(f.poll(lw).is_err());
+        assert_eq!(rx.recv().unwrap(), 2);
+
+        let (a, b) = oneshot::channel::<i32>();
+        let (tx, rx) = channel();
+        let mut f = b.join(Ok(2)).map_err(move |_r| tx.send(1).unwrap());
+        assert!(f.poll(lw).ok().unwrap().is_pending());
+        assert!(rx.try_recv().is_err());
+        drop(a);
+        assert!(f.poll(lw).is_err());
+        assert_eq!(rx.recv().unwrap(), 1);
+    })
+}
+
+#[test]
+fn select2() {
+    assert_done(|| f_ok(2).select(empty()).then(unselect), Ok(2));
+    assert_done(|| empty().select(f_ok(2)).then(unselect), Ok(2));
+    assert_done(|| f_err(2).select(empty()).then(unselect), Err(2));
+    assert_done(|| empty().select(f_err(2)).then(unselect), Err(2));
+
+    assert_done(
+        || {
+            f_ok(1).select(f_ok(2)).map_err(|_| 0).and_then(|either_tup| {
+                let (a, b) = either_tup.into_inner();
+                b.map(move |b| a + b)
+            })
+        },
+        Ok(3),
+    );
+
+    // Finish one half of a select and then fail the second, ensuring that we
+    // get the notification of the second one.
+    {
+        let ((a, b), (c, d)) = (oneshot::channel::<i32>(), oneshot::channel::<i32>());
+        let f = b.select(d);
+        let (tx, rx) = channel();
+        f.map(move |r| tx.send(r).unwrap()).forget();
+        a.send(1).unwrap();
+        let (val, next) = rx.recv().unwrap().into_inner();
+        assert_eq!(val, 1);
+        let (tx, rx) = channel();
+        next.map_err(move |_r| tx.send(2).unwrap()).forget();
+        assert_eq!(rx.try_recv().err().unwrap(), TryRecvError::Empty);
+        drop(c);
+        assert_eq!(rx.recv().unwrap(), 2);
+    }
+
+    // Fail the second half and ensure that we see the first one finish
+    {
+        let ((a, b), (c, d)) = (oneshot::channel::<i32>(), oneshot::channel::<i32>());
+        let f = b.select(d);
+        let (tx, rx) = channel();
+        f.map_err(move |r| tx.send((1, r.into_inner().1)).unwrap()).forget();
+        drop(c);
+        let (val, next) = rx.recv().unwrap();
+        assert_eq!(val, 1);
+        let (tx, rx) = channel();
+        next.map(move |r| tx.send(r).unwrap()).forget();
+        assert_eq!(rx.try_recv().err().unwrap(), TryRecvError::Empty);
+        a.send(2).unwrap();
+        assert_eq!(rx.recv().unwrap(), 2);
+    }
+
+    // Cancelling the first half should cancel the second
+    {
+        let ((_a, b), (_c, d)) = (oneshot::channel::<i32>(), oneshot::channel::<i32>());
+        let ((btx, brx), (dtx, drx)) = (channel(), channel());
+        let b = b.map(move |v| {
+            btx.send(v).unwrap();
+            v
+        });
+        let d = d.map(move |v| {
+            dtx.send(v).unwrap();
+            v
+        });
+        let f = b.select(d);
+        drop(f);
+        assert!(drx.recv().is_err());
+        assert!(brx.recv().is_err());
+    }
+
+    // Cancel after a schedule
+    {
+        let ((_a, b), (_c, d)) = (oneshot::channel::<i32>(), oneshot::channel::<i32>());
+        let ((btx, brx), (dtx, drx)) = (channel(), channel());
+        let b = b.map(move |v| {
+            btx.send(v).unwrap();
+            v
+        });
+        let d = d.map(move |v| {
+            dtx.send(v).unwrap();
+            v
+        });
+        let mut f = b.select(d);
+        let _res = noop_waker_lw(|lw| f.poll(lw));
+        drop(f);
+        assert!(drx.recv().is_err());
+        assert!(brx.recv().is_err());
+    }
+
+    // Cancel propagates
+    {
+        let ((a, b), (_c, d)) = (oneshot::channel::<i32>(), oneshot::channel::<i32>());
+        let ((btx, brx), (dtx, drx)) = (channel(), channel());
+        let b = b.map(move |v| {
+            btx.send(v).unwrap();
+            v
+        });
+        let d = d.map(move |v| {
+            dtx.send(v).unwrap();
+            v
+        });
+        let (tx, rx) = channel();
+        b.select(d).map(move |_| tx.send(()).unwrap()).forget();
+        drop(a);
+        assert!(drx.recv().is_err());
+        assert!(brx.recv().is_err());
+        assert!(rx.recv().is_err());
+    }
+
+    // Cancel on early drop
+    {
+        let (tx, rx) = channel();
+        let f = f_ok(1).select(empty::<_, ()>().map(move |()| {
+            tx.send(()).unwrap();
+            1
+        }));
+        drop(f);
+        assert!(rx.recv().is_err());
+    }
+}
+
+#[test]
+fn option() {
+    assert_eq!(Ok(Some(())), block_on(Some(ok::<(), ()>(())).into_future()));
+    assert_eq!(Ok::<_, ()>(None::<()>), block_on(None::<FutureResult<(), ()>>.into_future()));
+}