Test running Graphite and send metrics (#2874)

* Test running Graphite and send metrics

.travis.yml

@@ -27,6 +27,7 @@ matrix:
       before_script:
         - export DISPLAY=:99.0
         - /sbin/start-stop-daemon --start --quiet --pidfile /tmp/custom_xvfb_99.pid --make-pidfile --background --exec /usr/bin/Xvfb -- :99 -ac -screen 0 1600x1024x16
+        - docker-compose -f test/docker-compose.yml up -d
       env:
           - secure: ZCqHD+/PhHNVFWoqir66Xd9YeJRcTHDJYvNL9j4+GTKDEI1h94twhAjQ7Z9DhlCnXwL1lsfEcIjvNCWd3ir/FNy2oZsUzu6kMpFF/niugurFbS551moJ2ObNEfOdj93/sTo4UWH2MZouC9eYeuj1vNYbAev6wBIptL95X/ArldQ=
           - secure: ZmEirO6J+rY+6T6eQWRNxqiqRNOYJktqQWaeUDR6WvzoR80oPdgKoNRS012dk4aCGr2+Dxf/KP6Iu2qbDE3YP3QD7PhoexicTVB6MTl81hZfX/eN0lt4lZknTYtjnAAWQB/aWAM6OVLjh8rAzq9PTBzl5EtAeMMJWmnhz6r+cLc=
@@ -42,6 +43,7 @@ matrix:
         - bin/sitespeed.js --multi -n 3 test/prepostscripts/multi.js
         - bin/sitespeed.js https://www.sitespeed.io/ https://www.google.com -v -n 1 --html.pageSummaryMetrics transferSize.css --html.pageSummaryMetrics requests.httpErrors --html.pageSummaryMetrics score.performance
         - bin/sitespeed.js https://www.sitespeed.io/ -v -n 1 --html.summaryBoxes score.performance --html.summaryBoxes timings.firstPaint
+        - bin/sitespeed.js https://www.sitespeed.io/ -n 1 --graphite.host 127.0.0.1
 cache:
   apt: true
 addons:

test/docker-compose.yml

@@ -0,0 +1,7 @@
+version: '3'
+services:
+    graphite:
+      image: sitespeedio/graphite:1.1.5-12
+      ports:
+        - "2003:2003"
+        - "8080:80"