test: set working directory even if it is expected that the command fails

Otherwise, parsing may unexpectedly succeeds but fail to run writing
.network files with permission error.

Follow-up for 6bc5de53e8410fdec817300185b7ad72cd7775dd.

diff --git a/test/test-network-generator-conversion.sh b/test/test-network-generator-conversion.sh
index f03847c1faee76f82a3e51f479cd5d26b378c7aa..6224a4d04f96a4839514dbd6b918f4602ae146d0 100755 (executable)
--- a/test/test-network-generator-conversion.sh
+++ b/test/test-network-generator-conversion.sh
@@ -307,5 +307,5 @@ INVALID_COMMAND_LINES=(
     "ip=:::::dhcp99:dhcp6:10.0.0.128:[fdef:c400:bd01:1096::bbbb]:"
 )
 for cmdline in "${INVALID_COMMAND_LINES[@]}"; do
-    (! SYSTEMD_LOG_LEVEL=debug SYSTEMD_PROC_CMDLINE="$cmdline" "$GENERATOR_BIN")
+    (! SYSTEMD_LOG_LEVEL=debug SYSTEMD_PROC_CMDLINE="$cmdline" "$GENERATOR_BIN" --root "$WORK_DIR")
 done