Use fixture hostname (dont assume localhost)

Author: dpkp

test/test_consumer_group.py

@@ -16,7 +16,7 @@
 
 
 def get_connect_str(kafka_broker):
-    return 'localhost:' + str(kafka_broker.port)
+    return kafka_broker.host + ':' + str(kafka_broker.port)
 
 
 @pytest.fixture

test/test_producer.py

@@ -35,7 +35,7 @@ def test_end_to_end(kafka_broker, compression):
         elif platform.python_implementation() == 'PyPy':
             return
 
-    connect_str = 'localhost:' + str(kafka_broker.port)
+    connect_str = ':'.join([kafka_broker.host, str(kafka_broker.port)])
     producer = KafkaProducer(bootstrap_servers=connect_str,
                              retries=5,
                              max_block_ms=10000,