test: sync fs before checking for output file

It can happen that we check for the file before `socat` has written it in the filesystem. Sync before checking. Signed-off-by: Pablo Barbáchano <[email protected]>
firecracker-microvm · Jan 23, 2025 · a7a691a · a7a691a
1 parent d28ef60
commit a7a691a
Showing 1 changed file with 2 additions and 3 deletions.
diff --git a/tests/integration_tests/functional/test_net.py b/tests/integration_tests/functional/test_net.py
@@ -115,9 +115,8 @@ def test_tap_offload(uvm_any):
     )
 
     # Try to send a UDP message from host with UDP offload enabled
-    cmd = f"ip netns exec {vm.ssh.netns} python3 ./host_tools/udp_offload.py {vm.ssh.host} {port}"
-    utils.check_output(cmd)
+    vm.netns.check_output(f"python3 ./host_tools/udp_offload.py {vm.ssh.host}")
 
     # Check that the server received the message
-    ret = vm.ssh.run(f"cat {out_filename}")
+    ret = vm.ssh.run(f"sync ; cat {out_filename}")
     assert ret.stdout == message, f"{ret.stdout=} {ret.stderr=}"