Add mocha test in autopkgtest files

debian/tests/control

 Tests: require
 Depends: node-get-value
+
+Tests: upstream
+Depends: @, @builddeps@

debian/tests/upstream

+#!/bin/sh
+set -e
+
+TEMP=${ADTTMP:-${TMPDIR:-/tmp}}
+TDIR=$(mktemp -d $TEMP/smokeXXXXXX)
+PDIR=`pwd`
+
+cp -a test $TDIR/
+cd $TDIR
+ln -s /usr/lib/nodejs/get-value/package.json
+ln -s /usr/lib/nodejs/get-value/index.js
+mocha test