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Commit 783b081

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Rollup merge of #139836 - glyn:test-mpmc-receiver-cloning, r=jhpratt
Basic tests of MPMC receiver cloning Ref: #126840 (comment)
2 parents 4d5284a + 1376810 commit 783b081

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‎library/std/tests/sync/mpmc.rs‎

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@@ -63,6 +63,24 @@ fn smoke_port_gone() {
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assert!(tx.send(1).is_err());
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}
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#[test]
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fn smoke_receiver_clone() {
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let (tx, rx) = channel::<i32>();
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let rx2 = rx.clone();
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drop(rx);
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tx.send(1).unwrap();
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assert_eq!(rx2.recv().unwrap(), 1);
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}
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#[test]
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fn smoke_receiver_clone_port_gone() {
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let (tx, rx) = channel::<i32>();
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let rx2 = rx.clone();
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drop(rx);
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drop(rx2);
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assert!(tx.send(1).is_err());
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}
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#[test]
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fn smoke_shared_port_gone() {
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let (tx, rx) = channel::<i32>();
@@ -124,6 +142,18 @@ fn chan_gone_concurrent() {
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while rx.recv().is_ok() {}
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}
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#[test]
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fn receiver_cloning() {
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let (tx, rx) = channel::<i32>();
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let rx2 = rx.clone();
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tx.send(1).unwrap();
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tx.send(2).unwrap();
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assert_eq!(rx2.recv(), Ok(1));
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assert_eq!(rx.recv(), Ok(2));
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}
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#[test]
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fn stress() {
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let count = if cfg!(miri) { 100 } else { 10000 };

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