xvfb setup in .travis.yml
@@ -14,6 +14,11 @@ env:
- REQ_ENV='-r requirements.txt .'
# - REQ_ENV='--upgrade --upgrade-strategy=eager .'
+# GUI testing requires xvfb
+dist: xenial
+services:
+ - xvfb
+
# Radiance is required to run tests. Download and setup v5.2
before_install:
