tests-extra: Test for SOA events.

tests-extra/tests/events/soa/data/example.zone

+$ORIGIN example.
+$TTL 3600
+
+@	SOA	dns1 hostmaster 1 1 1 3 600
+	NS	dns1
+
+dns1	A	192.0.2.1

tests-extra/tests/events/soa/data/example.zone.1

+$ORIGIN example.
+$TTL 3600
+
+@	SOA	dns1 hostmaster 2 10 1 3 600
+	NS	dns1
+
+dns1	A	192.0.2.1

tests-extra/tests/events/soa/test.py

+#!/usr/bin/env python3
+
+'''Test to end all tests'''
+
+from dnstest.utils import *
+from dnstest.test import Test
+
+EXPIRE_SLEEP = 5
+
+def test_refresh(slave):
+    resp = slave.dig("example.", "SOA")
+    resp.check(rcode="NOERROR")
+    t.sleep(EXPIRE_SLEEP)
+    resp = slave.dig("example.", "SOA")
+    resp.check(rcode="NOERROR")
+    
+def test_expire(slave):
+    resp = slave.dig("example.", "SOA")
+    resp.check(rcode="NOERROR")
+    t.sleep(EXPIRE_SLEEP)
+    resp = slave.dig("example.", "SOA")
+    resp.check(rcode="SERVFAIL")
+
+t = Test()
+
+master = t.server("bind")
+slave = t.server("knot")
+slave.max_conn_idle = "1s"
+
+# this zone has refresh = 1s, retry = 1s and expire = 1s + 2s for connection timeouts
+zone = t.zone("example.", storage=".")
+
+t.link(zone, master, slave)
+
+t.start()
+
+slave.zone_wait(zone)
+#test that zone does not expire when master is alive
+test_refresh(slave)
+master.stop()
+#test that zone does expire when master is down
+test_expire(slave)
+
+#update master zone file with 10s refresh in SOA
+master.update_zonefile(zone, version=1)
+master.start()
+
+slave.zone_wait(zone) #this has to work - retry is 1s
+slave.flush()
+
+#zone should expire, because refresh < expire
+test_expire(slave)
+
+#switch server roles, slave becomes master - there should be no expire
+master.stop()
+slave.zones = {}
+master.zones = {}
+t.link(zone, slave)
+t.generate_conf()
+slave.reload()
+
+slave.zone_wait(zone)
+t.sleep(EXPIRE_SLEEP)
+slave.zone_wait(zone)
+
+#switch again - zone should expire now
+slave.zones = {}
+t.link(zone, master, slave)
+t.generate_conf()
+slave.reload()
+
+test_expire(slave)
+
+t.stop()
+

tests-extra/tools/dnstest/server.py

@@ -139,6 +139,7 @@ class Server(object):
 
         self.ratelimit = None
         self.disable_any = None
+        self.max_conn_idle = None
 
         self.ip = None
         self.addr = None
@@ -199,7 +200,7 @@ class Server(object):
         '''Set the server as a slave for the zone'''
 
         if zone.name in self.zones:
-            raise Exception("Can't set zone='%s' as a slave" % name)
+            raise Exception("Can't set zone='%s' as a slave" % zone.name)
 
         slave_file = zone.clone(self.dir + "/slave", exists=False)
         z = Zone(slave_file, ddns, ixfr)
@@ -815,6 +816,8 @@ class Knot(Server):
         self._on_str_hex(s, "nsid", self.nsid)
         self._on_str_hex(s, "rate-limit", self.ratelimit)
         s.item_str("rundir", self.dir)
+        if (self.max_conn_idle):
+            s.item("max-conn-idle", self.max_conn_idle)
         s.end()
 
         s.begin("control")

tests-extra/tools/dnstest/test.py

@@ -106,7 +106,7 @@ class Test(object):
         elif server == "dummy":
             srv = dnstest.server.Dummy()
         else:
-            raise Exception("Usupported server '%s'" % server)
+            raise Exception("Unsupported server '%s'" % server)
 
         type(srv).count += 1