From 1ce1649edde21a3501189fde29216117b407e2eb Mon Sep 17 00:00:00 2001
From: Philipp Rudiger <prudiger@anaconda.com>
Date: Fri, 22 Feb 2019 18:47:07 +0000
Subject: [PATCH] Skip mp4 test if no ffmpeg found

---
 holoviews/tests/plotting/matplotlib/testrenderer.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/holoviews/tests/plotting/matplotlib/testrenderer.py b/holoviews/tests/plotting/matplotlib/testrenderer.py
index a86f5f9c2b..e305cd0b89 100644
--- a/holoviews/tests/plotting/matplotlib/testrenderer.py
+++ b/holoviews/tests/plotting/matplotlib/testrenderer.py
@@ -4,6 +4,10 @@
 """
 from __future__ import unicode_literals
 
+import os
+import sys
+import subprocess
+
 from unittest import SkipTest
 
 import numpy as np
@@ -69,5 +73,11 @@ def test_render_gif(self):
         self.assertIn("<img src='data:image/gif", data['text/html'])
 
     def test_render_mp4(self):
+        if sys.version_info.major > 2:
+            devnull = subprocess.DEVNULL
+        else:
+            devnull = open(os.devnull, 'w')
+        if not subprocess.call(['ffmpeg', '-h'], stdout=devnull, stderr=devnull):
+            raise SkipTest('ffmpeg not available, skipping mp4 export test')
         data, metadata = self.renderer.components(self.map1, 'mp4')
         self.assertIn("<source src='data:video/mp4", data['text/html'])