tests: Extend test_*_reboot with checks on fd leaking
This revised version of the patch reuses the back-off strategy from
'ssh_command()' to deal with varying booting time.
Fixes:
@@ -2951,6 +2951,10 @@ mod tests {
});
}
+ fn get_fd_count(pid: u32) -> usize {
+ fs::read_dir(format!("/proc/{}/fd", pid)).unwrap().count()
+ }
+
#[cfg_attr(not(feature = "mmio"), test)]
fn test_reboot() {
test_block!(tb, "", {
@@ -2985,6 +2989,7 @@ mod tests {
.trim()
.parse::<u32>()
.unwrap_or(1);
+ let fd_count_1 = get_fd_count(child.id());
aver_eq!(tb, reboot_count, 0);
guest.ssh_command("sudo reboot").unwrap_or_default();
@@ -2996,7 +3001,9 @@ mod tests {
.trim()
.parse::<u32>()
.unwrap_or_default();
+ let fd_count_2 = get_fd_count(child.id());
aver_eq!(tb, reboot_count, 1);
+ aver_eq!(tb, fd_count_1, fd_count_2);
guest
.ssh_command("sudo shutdown -h now")
@@ -3041,6 +3048,7 @@ mod tests {
.trim()
.parse::<u32>()
.unwrap_or(1);
+ let fd_count_1 = get_fd_count(child.id());
aver_eq!(tb, reboot_count, 0);
guest.ssh_command("sudo reboot")?;
@@ -3052,7 +3060,9 @@ mod tests {
.trim()
.parse::<u32>()
.unwrap_or_default();
+ let fd_count_2 = get_fd_count(child.id());
aver_eq!(tb, reboot_count, 1);
+ aver_eq!(tb, fd_count_1, fd_count_2);
guest.ssh_command("sudo shutdown -h now")?;
thread::sleep(std::time::Duration::new(20, 0));
