tests/eventscripts: Add a policy routing unit test for "ip rule del" failure

Signed-off-by: Martin Schwenke <martin@meltin.net>

(This used to be ctdb commit 0ce5b079f327aba55b62800ccb22d79976fac665)

ctdb/tests/eventscripts/13.per_ip_routing.013.sh

@@ -0,0 +1,38 @@
+#!/bin/sh
+
+. "${TEST_SCRIPTS_DIR}/unit.sh"
+
+define_test "1 IP configured, releaseip of unassigned"
+
+setup_ctdb
+setup_ctdb_policy_routing
+
+ctdb_get_1_public_address |
+{
+    read dev ip bits
+
+    net=$(ipv4_host_addr_to_net "$ip" "$bits")
+    gw="${net%.*}.1" # a dumb, calculated default
+
+    cat >"$CTDB_PER_IP_ROUTING_CONF" <<EOF
+$ip $net
+$ip 0.0.0.0/0 $gw
+EOF
+
+    ok <<EOF
+WARNING: Failed to delete policy routing rule
+  Command "ip rule del from $ip pref $CTDB_PER_IP_ROUTING_RULE_PREF table ctdb.$ip" failed:
+  RTNETLINK answers: No such file or directory
+EOF
+
+    simple_test_event "releaseip" $dev $ip $bits
+
+    ok <<EOF
+# ip rule show
+0:	from all lookup local 
+32766:	from all lookup main 
+32767:	from all lookup default 
+EOF
+
+    simple_test_command dump_routes
+}