Test wrapper for jenkins

xvfb occasionally fails to start, causing xvfb-run to return 1.
If that happens rerun it up to 9 times.

jenkins-wrap.sh

@@ -0,0 +1,24 @@
+#!/bin/sh
+COUNTER=9
+
+export PATH="/usr/local/bin:$PATH"
+
+run_test() {
+    xvfb-run -e xvfb-err "$@"
+}
+
+run_test "$@"
+ERRORCODE=$?
+while [ $COUNTER -gt 0 -a $ERRORCODE -eq 1 ];do
+    if [ -s xvfb-err ]; then
+        echo "xvfb output:"
+        cat xvfb-err
+        rm xvfb-err
+    fi
+    echo "\n\'xvfb-run $@' returned 1, which could mean that xvfb failed. Retrying..."
+    run_test "$@"
+    ERRORCODE=$?
+    COUNTER=$(($COUNTER - 1))
+done
+
+rm -f xvfb-err