test: incoming IXFR of more changesets at once

diff --git a/tests-extra/tests/ixfr/ixfr_merge/test.py b/tests-extra/tests/ixfr/ixfr_merge/test.py
new file mode 100644 (file)
index 0000000..6c101c4
--- /dev/null
+++ b/tests-extra/tests/ixfr/ixfr_merge/test.py
@@ -0,0 +1,43 @@
+#!/usr/bin/env python3
+
+'''Test for chain IXFR with middle man being frozen'''
+
+from dnstest.test import Test
+from dnstest.utils import *
+
+t = Test()
+
+s1 = t.server("knot")
+s2 = t.server("knot")
+s3 = t.server("knot")
+zones = t.zone("example.com.") #t.zone_rnd(5)
+
+t.link(zones, s1, s2, ixfr=True)
+t.link(zones, s2, s3, ixfr=True)
+
+for zone in zones:
+    s1.dnssec(zone).enable = True
+
+t.start()
+
+serials_init = s3.zones_wait(zones)
+
+s2.ctl("zone-freeze")
+t.sleep(1)
+
+s1.ctl("zone-sign")
+t.sleep(2)
+s1.ctl("zone-sign")
+t.sleep(2)
+
+s2.ctl("zone-thaw")
+
+s3.zones_wait(zones, serials_init)
+
+if s2.log_search("incomplete history") or s2.log_search("fallback to AXFR"):
+    set_err("IXFR merge error")
+
+if s3.log_search("no such record in zone found") or s3.log_search("fallback to AXFR"):
+    set_err("IXFR ERROR")
+
+t.end()