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tests: avoid event wait log spam

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Event expectation helpers print detailed diagnostics when the observed
event stream does not match the expected one. That is useful for direct
assertions, but it becomes extremely noisy [0] when the helper is used
as the predicate for wait_until(), because every polling attempt emits
the full mismatch dump.

Add quiet wait wrappers for event polling and emit the existing detailed
diagnostics only once after the timeout expires.

[0] https://github.com/cloud-hypervisor/cloud-hypervisor/actions/runs/25745401604/job/75619840718?pr=8021

On-behalf-of: Philipp Schuster@sap.com
Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
This commit is contained in:
Philipp Schuster
2026-05-13 10:57:32 +02:00
committed by Bo Chen
parent 96c83168a1
commit b0f92d01fc
3 changed files with 164 additions and 72 deletions
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136
cloud-hypervisor/tests/integration.rs
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@@ -5783,9 +5783,11 @@ mod common_parallel {
event: "panic".to_string(),
device_id: None,
}];
assert!(wait_until(Duration::from_secs(3), || {
check_latest_events_exact(&expected_sequential_events, &event_path)
}));
assert!(wait_for_latest_events_exact(
Duration::from_secs(3),
&expected_sequential_events,
&event_path
));
});
kill_child(&mut child);
@@ -7537,9 +7539,11 @@ mod ivshmem {
device_id: None,
}];
// Wait for the restored event to show up in the monitor file.
assert!(wait_until(Duration::from_secs(30), || {
check_latest_events_exact(&latest_events, &event_path_restored)
}));
assert!(wait_for_latest_events_exact(
Duration::from_secs(30),
&latest_events,
&event_path_restored
));
// Remove the snapshot dir
let _ = remove_dir_all(snapshot_dir.as_str());
@@ -7562,9 +7566,11 @@ mod ivshmem {
device_id: None,
},
];
assert!(wait_until(Duration::from_secs(30), || {
check_latest_events_exact(&latest_events, &event_path_restored)
}));
assert!(wait_for_latest_events_exact(
Duration::from_secs(30),
&latest_events,
&event_path_restored
));
// Check the number of vCPUs
assert_eq!(guest.get_cpu_count().unwrap_or_default(), 2);
@@ -7663,9 +7669,11 @@ mod snapshot_restore_common {
},
];
assert!(wait_until(Duration::from_secs(30), || {
check_latest_events_exact(&latest_events, event_path)
}));
assert!(wait_for_latest_events_exact(
Duration::from_secs(30),
&latest_events,
event_path
));
// Take a snapshot from the VM
assert!(remote_command(
@@ -7685,9 +7693,11 @@ mod snapshot_restore_common {
},
];
assert!(wait_until(Duration::from_secs(30), || {
check_latest_events_exact(&latest_events, event_path)
}));
assert!(wait_for_latest_events_exact(
Duration::from_secs(30),
&latest_events,
event_path
));
}
pub(crate) fn _test_snapshot_restore(use_hotplug: bool, use_resume_option: bool) {
@@ -7800,9 +7810,11 @@ mod snapshot_restore_common {
event: "device-removed".to_string(),
device_id: Some(net_id.to_string()),
}];
assert!(wait_until(Duration::from_secs(30), || {
check_latest_events_exact(&latest_events, &event_path)
}));
assert!(wait_for_latest_events_exact(
Duration::from_secs(30),
&latest_events,
&event_path
));
// Plug the virtio-net device again
assert!(remote_command(
@@ -7874,9 +7886,11 @@ mod snapshot_restore_common {
device_id: None,
},
];
assert!(wait_until(Duration::from_secs(30), || {
check_sequential_events(&expected_events, &event_path_restored)
}));
assert!(wait_for_sequential_events(
Duration::from_secs(30),
&expected_events,
&event_path_restored
));
if use_resume_option {
let latest_events = [
&MetaEvent {
@@ -7892,17 +7906,21 @@ mod snapshot_restore_common {
device_id: None,
},
];
assert!(wait_until(Duration::from_secs(30), || {
check_latest_events_exact(&latest_events, &event_path_restored)
}));
assert!(wait_for_latest_events_exact(
Duration::from_secs(30),
&latest_events,
&event_path_restored
));
} else {
let latest_events = [&MetaEvent {
event: "restored".to_string(),
device_id: None,
}];
assert!(wait_until(Duration::from_secs(30), || {
check_latest_events_exact(&latest_events, &event_path_restored)
}));
assert!(wait_for_latest_events_exact(
Duration::from_secs(30),
&latest_events,
&event_path_restored
));
}
// Wait until the restored VM API is ready before issuing follow-up requests.
@@ -7938,9 +7956,11 @@ mod snapshot_restore_common {
device_id: None,
},
];
assert!(wait_until(Duration::from_secs(30), || {
check_latest_events_exact(&latest_events, &event_path_restored)
}));
assert!(wait_for_latest_events_exact(
Duration::from_secs(30),
&latest_events,
&event_path_restored
));
}
// Perform same checks to validate VM has been properly restored
@@ -8062,9 +8082,11 @@ mod snapshot_restore_common {
device_id: None,
}];
assert!(wait_until(Duration::from_secs(30), || {
check_latest_events_exact(&latest_events, &event_path_restored)
}));
assert!(wait_for_latest_events_exact(
Duration::from_secs(30),
&latest_events,
&event_path_restored
));
let r = std::panic::catch_unwind(|| {
assert!(wait_until(Duration::from_secs(30), || remote_command(
@@ -8084,9 +8106,11 @@ mod snapshot_restore_common {
device_id: None,
},
];
assert!(wait_until(Duration::from_secs(30), || {
check_latest_events_exact(&latest_events, &event_path_restored)
}));
assert!(wait_for_latest_events_exact(
Duration::from_secs(30),
&latest_events,
&event_path_restored
));
assert_eq!(guest.get_cpu_count().unwrap_or_default(), 4);
assert!(guest.get_total_memory().unwrap_or_default() > min_total_memory_kib);
@@ -8191,9 +8215,11 @@ mod snapshot_restore_common {
event: "restored".to_string(),
device_id: None,
}];
assert!(wait_until(Duration::from_secs(30), || {
check_latest_events_exact(&latest_events, &event_path_restored)
}));
assert!(wait_for_latest_events_exact(
Duration::from_secs(30),
&latest_events,
&event_path_restored
));
let _ = remove_dir_all(snapshot_dir.as_str());
@@ -8214,9 +8240,11 @@ mod snapshot_restore_common {
device_id: None,
},
];
assert!(wait_until(Duration::from_secs(30), || {
check_latest_events_exact(&latest_events, &event_path_restored)
}));
assert!(wait_for_latest_events_exact(
Duration::from_secs(30),
&latest_events,
&event_path_restored
));
assert_eq!(guest.get_cpu_count().unwrap_or_default(), 2);
guest.check_devices_common(Some(&socket), Some(&console_text), None);
@@ -8451,16 +8479,20 @@ mod common_sequential {
},
];
// Wait for the restore event sequence to be recorded.
assert!(wait_until(Duration::from_secs(30), || {
check_sequential_events(&expected_events, &event_path_restored)
}));
assert!(wait_for_sequential_events(
Duration::from_secs(30),
&expected_events,
&event_path_restored
));
let latest_events = [&MetaEvent {
event: "restored".to_string(),
device_id: None,
}];
assert!(wait_until(Duration::from_secs(30), || {
check_latest_events_exact(&latest_events, &event_path_restored)
}));
assert!(wait_for_latest_events_exact(
Duration::from_secs(30),
&latest_events,
&event_path_restored
));
// Remove the snapshot dir
let _ = remove_dir_all(snapshot_dir.as_str());
@@ -8484,9 +8516,11 @@ mod common_sequential {
device_id: None,
},
];
assert!(wait_until(Duration::from_secs(30), || {
check_latest_events_exact(&latest_events, &event_path_restored)
}));
assert!(wait_for_latest_events_exact(
Duration::from_secs(30),
&latest_events,
&event_path_restored
));
// Perform same checks to validate VM has been properly restored
assert_eq!(guest.get_cpu_count().unwrap_or_default(), n_cpu);