From 494189435dc657ac681b17ff3498a21f5900689d Mon Sep 17 00:00:00 2001
From: "Stephen J. Fuhry" <fuhrysteve@gmail.com>
Date: Wed, 6 Jul 2016 22:28:48 -0400
Subject: [PATCH] add test for not exists in __init__

---
 test_xvfb.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/test_xvfb.py b/test_xvfb.py
index 0bdae42..70f852d 100644
--- a/test_xvfb.py
+++ b/test_xvfb.py
@@ -19,6 +19,12 @@ def reset_display(self):
     def setUp(self):
         self.reset_display()
 
+    def test_xvfb_binary_not_exists(self):
+        with patch('xvfbwrapper.Xvfb.xvfb_exists') as xvfb_exists:
+            xvfb_exists.return_value = False
+            with self.assertRaises(EnvironmentError):
+                Xvfb()
+
     def test_start(self):
         xvfb = Xvfb()
         self.addCleanup(xvfb.stop)