test-network: wait for bound interface to be processed by udevd

If another bound interface (dummy98) will be removed before that dummy99
is processed by udevd, then removing dummy98 in the next step makes the
target interface (test1) bring down.

Follow-up for 3e2f7c46da528775f90c521e4cf22c2f61f82a81.

diff --git a/test/test-network/systemd-networkd-tests.py b/test/test-network/systemd-networkd-tests.py
index 3fc0ad957e8fe7d4b3f0c1f1765dd354a56506b7..752a5e419481b682a01d0a80436803192251d097 100755 (executable)
--- a/test/test-network/systemd-networkd-tests.py
+++ b/test/test-network/systemd-networkd-tests.py
@@ -3176,6 +3176,7 @@ class NetworkdNetworkTests(unittest.TestCase, Utilities):
         # add another bound interface. The interface is still up.
         check_output('ip link add dummy99 type dummy')
         check_output('ip link set dummy99 up')
+        self.wait_operstate('dummy99', 'degraded', setup_state='unmanaged')
         output = check_output('ip address show test1')
         print(output)
         self.assertIn('UP,LOWER_UP', output)