From a1592e2c6d6e9768a1918f3c59b74d6d19033a55 Mon Sep 17 00:00:00 2001
From: Tom Clegg <tom@curoverse.com>
Date: Thu, 26 Nov 2015 17:44:18 -0500
Subject: [PATCH] 7851: Use a random display (:100-:499 = port 6100-6499) for
 Xvfb, instead of always :99.

---
 apps/workbench/test/integration_helper.rb | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/apps/workbench/test/integration_helper.rb b/apps/workbench/test/integration_helper.rb
index c0e930aa95..74072caaad 100644
--- a/apps/workbench/test/integration_helper.rb
+++ b/apps/workbench/test/integration_helper.rb
@@ -86,8 +86,10 @@ end
 
 module HeadlessHelper
   class HeadlessSingleton
+    @display = ENV['ARVADOS_TEST_HEADLESS_DISPLAY'] || rand(400)+100
+    STDERR.puts "Using display :#{@display} for headless tests"
     def self.get
-      @headless ||= Headless.new reuse: false
+      @headless ||= Headless.new reuse: false, display: @display
     end
   end
 
-- 
2.30.2