Add test for persistent subscription (#501)

Signed-off-by: Pierre Fersing <pierre.fersing@bleemeo.com>

test/broker/11-persistent-subscription.conf

@@ -0,0 +1,3 @@
+port 1888
+persistence true
+persistence_file mosquitto-test.db

test/broker/11-persistent-subscription.py

@@ -0,0 +1,70 @@
+#!/usr/bin/env python
+
+# Test whether a client subscribed to a topic receives its own message sent to that topic.
+
+import inspect, os, sys
+# From http://stackoverflow.com/questions/279237/python-import-a-module-from-a-folder
+cmd_subfolder = os.path.realpath(os.path.abspath(os.path.join(os.path.split(inspect.getfile( inspect.currentframe() ))[0],"..")))
+if cmd_subfolder not in sys.path:
+    sys.path.insert(0, cmd_subfolder)
+
+import mosq_test
+
+rc = 1
+mid = 530
+keepalive = 60
+connect_packet = mosq_test.gen_connect(
+    "persitent-subscription-test", keepalive=keepalive, clean_session=False,
+)
+connack_packet = mosq_test.gen_connack(rc=0)
+connack_packet2 = mosq_test.gen_connack(rc=0, resv=1)  # session present
+
+subscribe_packet = mosq_test.gen_subscribe(mid, "subpub/qos1", 1)
+suback_packet = mosq_test.gen_suback(mid, 1)
+
+mid = 300
+publish_packet = mosq_test.gen_publish("subpub/qos1", qos=1, mid=mid, payload="message")
+puback_packet = mosq_test.gen_puback(mid)
+
+mid = 1
+publish_packet2 = mosq_test.gen_publish("subpub/qos1", qos=1, mid=mid, payload="message")
+
+if os.path.exists('mosquitto-test.db'):
+    os.unlink('mosquitto-test.db')
+
+broker = mosq_test.start_broker(filename=os.path.basename(__file__))
+
+(stdo1, stde1) = ("", "")
+try:
+    sock = mosq_test.do_client_connect(connect_packet, connack_packet, timeout=20)
+    sock.send(subscribe_packet)
+
+    if mosq_test.expect_packet(sock, "suback", suback_packet):
+        broker.terminate()
+        broker.wait()
+        (stdo1, stde1) = broker.communicate()
+        sock.close()
+        broker = mosq_test.start_broker(filename=os.path.basename(__file__))
+
+        sock = mosq_test.do_client_connect(connect_packet, connack_packet2, timeout=20)
+
+        sock.send(publish_packet)
+
+        if mosq_test.expect_packet(sock, "puback", puback_packet):
+
+            if mosq_test.expect_packet(sock, "publish2", publish_packet2):
+                rc = 0
+
+    sock.close()
+finally:
+    broker.terminate()
+    broker.wait()
+    if rc:
+        (stdo, stde) = broker.communicate()
+        print(stde1 + stde)
+    if os.path.exists('mosquitto-test.db'):
+        os.unlink('mosquitto-test.db')
+
+
+exit(rc)
+

test/broker/Makefile

@@ -12,7 +12,7 @@ clean :
 test-compile : 
 	$(MAKE) -C c
 
-test : test-compile 01 02 03 04 05 06 07 08 09 10
+test : test-compile 01 02 03 04 05 06 07 08 09 10 11
 
 01 :
 	./01-connect-success.py
@@ -98,3 +98,5 @@ endif
 10 :
 	./10-listener-mount-point.py
 
+11 :
+	./11-persistent-subscription.py