From b287a74236d64a22b53780f334d4215541e295b4 Mon Sep 17 00:00:00 2001
From: Andrew Godwin <andrew@aeracode.org>
Date: Thu, 1 Feb 2018 20:32:08 -0800
Subject: [PATCH] Make test port selection less flaky

---
 tests/http_base.py | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/tests/http_base.py b/tests/http_base.py
index 5d61e50..1772539 100644
--- a/tests/http_base.py
+++ b/tests/http_base.py
@@ -1,3 +1,4 @@
+import random
 import socket
 import struct
 import subprocess
@@ -42,9 +43,10 @@ class DaphneTestingInstance:
         """
         Finds an unused port to test stuff on
         """
-        for i in range(11200, 11300):
-            if not self.port_in_use(i):
-                return i
+        for _ in range(100):
+            port = random.randint(11200, 11300)
+            if not self.port_in_use(port):
+                return port
         raise RuntimeError("Cannot find a free port to test on")
 
     def __enter__(self):
@@ -59,7 +61,7 @@ class DaphneTestingInstance:
             daphne_args += ["--proxy-headers"]
         # Start up process and make sure it begins listening.
         self.process = subprocess.Popen(daphne_args + ["daphne.test_application:TestApplication"])
-        for _ in range(100):
+        for _ in range(30):
             time.sleep(0.1)
             if self.port_in_use(self.port):
                 return self