MCOL-5496: Merge CMAPI code to engine repo.

[add] cmapi code to engine

cmapi/failover/test/tester.py

@@ -0,0 +1,83 @@
+from .. import config
+import time
+from socket import *
+import struct
+import sys
+
+_config = config.Config("failover/test/config-test.xml")
+print("got desired_nodes = {}".format(_config.getDesiredNodes()))
+print("got active_nodes = {}".format(_config.getActiveNodes()))
+print("got inacive_nodes = {}".format(_config.getInactiveNodes()))
+print("got all nodes = {}".format(_config.getAllNodes()))
+print("got primarynode = {}".format(_config.getPrimaryNode()))
+print()
+
+from ..heartbeater import HeartBeater
+from ..heartbeat_history import HBHistory
+
+hbh = HBHistory()
+hb = HeartBeater(_config, hbh)
+hb.start()
+sock = socket(type = SOCK_DGRAM)
+sock.bind(('localhost', 12345))
+
+# Updated heartbeater to send the reply to its own port, rather than to
+# the port of the sending socket.  Need to update this.
+#msg = struct.pack("4sH", hb.areYouThereMsg, 1234)
+#sock.sendto(msg, ('localhost', hb.port))
+#print("sent the are-you-there msg")
+#(data, remote) = sock.recvfrom(6)
+#(data, seq) = struct.unpack("4sH", data)
+#if data == hb.yesIAmMsg:
+#    print("got the yes-i-am msg, seq = {}".format(seq))
+#else:
+#    print("got something other than the yes-i-am-msg")
+
+hb.stop()
+
+#from heartbeat_history import HBHistory
+
+#hbh = HBHistory()
+hbh.setCurrentTick(0)
+hbh.gotHeartbeat("node1", 0)
+hbh.setCurrentTick(1)
+hbh.gotHeartbeat("node2", 1)
+hbh.setCurrentTick(2)
+hbh.setCurrentTick(10)
+hbh.gotHeartbeat("node1", 9)
+hbh.gotHeartbeat("node1", 2)
+pongs = hbh.getNodeHistory("node1", 20)
+print("Got pongs: {}".format(pongs))
+
+print('''
+ This is currently a 'manual' test, meaning the user should watch for the expected output
+ In this case, because NM's identity checker will return 'node1', and that does not match
+ node[2-4], those nodes will appear to NodeMonitor to be offline.  Our starting condition
+ is that nodes 1-3 are active, and node4 is inactive.  After 15s, nodes 2 & 3
+ should be deactivated, a new primary node will be chosen, and and our AgentBase will start 
+ printing these events.
+''')
+def testNodeMonitor1(nm):
+    nm.start()
+    print("Waiting for 20 secs, watch for output from AgentBase")
+    time.sleep(20)
+    nm.stop()
+    time.sleep(1)
+    print("NodeMonitor was stopped, did it produce the right output?")
+
+from ..node_monitor import NodeMonitor
+nm = NodeMonitor(config = _config, samplingInterval = 10)
+# check whether node[1-4] are in the /etc/hosts file as localhost
+addr1 = gethostbyname("node1")
+addr2 = gethostbyname("node2")
+addr3 = gethostbyname("node3")
+addr4 = gethostbyname("node4")
+if addr1 == '127.0.0.1' and addr2 == '127.0.0.1' and addr3 == '127.0.0.1' and addr4 == '127.0.0.1':
+    testNodeMonitor1(nm)
+else:
+    print("Skipping testNodeMonitor1().  node[1-4] needs to be defined as 127.0.0.1 in /etc/hosts")
+
+
+
+print("tester is finished")
+