Merge "Add zk test to check myid is set in service"

testinfra/test_zookeeper.py

@@ -24,6 +24,12 @@ def test_id_file(host):
     myid = host.file('/var/zookeeper/data/myid')
     assert myid.content == b'4\n'
 
+def test_zk_myid_is_set(host):
+    # Test that our wacky hostname regex results in the correct
+    # myid value in the running service.
+    cmd = host.run("docker logs zookeeper-compose_zk_1")
+    assert "[myid:4]" in cmd.stdout
+
 def test_zk_listening(host):
     zk = host.socket("tcp://0.0.0.0:2181")
     assert zk.is_listening