smoketest: T7858: make failfast main argument dynamic

When smoketest debugging is enabled (by creating the file
/tmp/vyos.smoketest.debug), all available smoketests will fail fast instead
of running to completion. This helps reduce test time when something is
broken or undergoing refactoring, as it avoids waiting for the full test suite
to finish.

1 files changed, 2 insertions, 1 deletions

diff --git a/smoketest/scripts/cli/test_interfaces_loopback.py b/smoketest/scripts/cli/test_interfaces_loopback.py
index 290cda64b..df498334e 100755
--- a/smoketest/scripts/cli/test_interfaces_loopback.py
+++ b/smoketest/scripts/cli/test_interfaces_loopback.py
@@ -19,6 +19,7 @@ import unittest
 from base_interfaces_test import BasicInterfaceTest
 from base_interfaces_test import MSG_TESTCASE_UNSUPPORTED
 from netifaces import interfaces
+from base_vyostest_shim import VyOSUnitTestSHIM
 
 from vyos.utils.network import is_intf_addr_assigned
 
@@ -57,4 +58,4 @@ class LoopbackInterfaceTest(BasicInterfaceTest.TestCase):
         self.skipTest(MSG_TESTCASE_UNSUPPORTED)
 
 if __name__ == '__main__':
-    unittest.main(verbosity=2)
+    unittest.main(verbosity=2, failfast=VyOSUnitTestSHIM.TestCase.debug_on())