From 75212cda3f45f1e78c1fe582e04da4b619e0c668 Mon Sep 17 00:00:00 2001
From: Julien Duponchelle <julien@duponchelle.info>
Date: Wed, 16 Mar 2016 16:34:16 +0100
Subject: [PATCH] Improve tests on Travis

---
 tests/conftest.py | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/tests/conftest.py b/tests/conftest.py
index 59eca77b..17add21f 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -81,16 +81,25 @@ def _get_unused_port():
 def server(request, loop, port_manager, monkeypatch):
     """A GNS3 server"""
 
-    port = _get_unused_port()
-    host = "localhost"
     app = web.Application()
     for method, route, handler in Route.get_routes():
         app.router.add_route(method, route, handler)
     for module in MODULES:
         instance = module.instance()
         instance.port_manager = port_manager
-    srv = loop.create_server(app.make_handler(), host, port)
-    srv = loop.run_until_complete(srv)
+
+    host = "localhost"
+
+    # We try multiple time. Because on Travis test can fail when because the port is taken by someone else
+    for i in range(0, 5):
+        port = _get_unused_port()
+        try:
+            srv = loop.create_server(app.make_handler(), host, port)
+            srv = loop.run_until_complete(srv)
+        except OSError:
+            pass
+        else:
+            break
 
     def tear_down():
         for module in MODULES: