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-rw-r--r--vendor/flume/tests/iter.rs112
1 files changed, 112 insertions, 0 deletions
diff --git a/vendor/flume/tests/iter.rs b/vendor/flume/tests/iter.rs
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+++ b/vendor/flume/tests/iter.rs
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+//! Tests for iteration over receivers.
+
+extern crate crossbeam_utils;
+
+use flume::unbounded;
+use crossbeam_utils::thread::scope;
+
+#[test]
+fn nested_recv_iter() {
+ let (s, r) = unbounded::<i32>();
+ let (total_s, total_r) = unbounded::<i32>();
+
+ scope(|scope| {
+ scope.spawn(move |_| {
+ let mut acc = 0;
+ for x in r.iter() {
+ acc += x;
+ }
+ total_s.send(acc).unwrap();
+ });
+
+ s.send(3).unwrap();
+ s.send(1).unwrap();
+ s.send(2).unwrap();
+ drop(s);
+ assert_eq!(total_r.recv().unwrap(), 6);
+ })
+ .unwrap();
+}
+
+#[test]
+fn recv_iter_break() {
+ let (s, r) = unbounded::<i32>();
+ let (count_s, count_r) = unbounded();
+
+ scope(|scope| {
+ scope.spawn(move |_| {
+ let mut count = 0;
+ for x in r.iter() {
+ if count >= 3 {
+ break;
+ } else {
+ count += x;
+ }
+ }
+ count_s.send(count).unwrap();
+ });
+
+ s.send(2).unwrap();
+ s.send(2).unwrap();
+ s.send(2).unwrap();
+ let _ = s.send(2);
+ drop(s);
+ assert_eq!(count_r.recv().unwrap(), 4);
+ })
+ .unwrap();
+}
+
+#[test]
+fn recv_try_iter() {
+ let (request_s, request_r) = unbounded();
+ let (response_s, response_r) = unbounded();
+
+ scope(|scope| {
+ scope.spawn(move |_| {
+ let mut count = 0;
+ loop {
+ for x in response_r.try_iter() {
+ count += x;
+ if count == 6 {
+ return;
+ }
+ }
+ request_s.send(()).unwrap();
+ }
+ });
+
+ for _ in request_r.iter() {
+ if response_s.send(2).is_err() {
+ break;
+ }
+ }
+ })
+ .unwrap();
+}
+
+#[test]
+fn recv_into_iter_owned() {
+ let mut iter = {
+ let (s, r) = unbounded::<i32>();
+ s.send(1).unwrap();
+ s.send(2).unwrap();
+ r.into_iter()
+ };
+
+ assert_eq!(iter.next().unwrap(), 1);
+ assert_eq!(iter.next().unwrap(), 2);
+ assert_eq!(iter.next().is_none(), true);
+}
+
+#[test]
+fn recv_into_iter_borrowed() {
+ let (s, r) = unbounded::<i32>();
+ s.send(1).unwrap();
+ s.send(2).unwrap();
+ drop(s);
+
+ let mut iter = (&r).into_iter();
+ assert_eq!(iter.next().unwrap(), 1);
+ assert_eq!(iter.next().unwrap(), 2);
+ assert_eq!(iter.next().is_none(), true);
+}