tests: make port picker more robust for tests

rhodecode/tests/pylons_plugin.py

@@ -21,7 +21,7 b''
 import json
 import platform
 import socket
-
+import random
 import pytest
 
 from rhodecode.lib.pyramid_utils import get_app_config
@@ -198,17 +198,19 b' def ini_settings(ini_config):'
     return get_app_config(ini_path)
 
 
-def get_available_port():
-    family = socket.AF_INET
-    socktype = socket.SOCK_STREAM
-    host = '127.0.0.1'
+def get_available_port(min_port=40000, max_port=55555):
+    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    hostname = '127.0.0.1'
 
-    mysocket = socket.socket(family, socktype)
-    mysocket.bind((host, 0))
-    port = mysocket.getsockname()[1]
-    mysocket.close()
-    del mysocket
-    return port
+    for _ in range(min_port, max_port):
+        pick_port = random.randint(min_port, max_port)
+        try:
+            sock.bind((hostname, pick_port))
+            sock.close()
+            del sock
+            return pick_port
+        except OSError:
+            pass
 
 
 @pytest.fixture(scope='session')