first four library tests

test/tests/d3.js

@@ -0,0 +1,7 @@
+var d3 = require('d3');
+
+exports['style test'] = function(done) {
+  document.querySelector('#sandbox').innerHTML = '<p>d3</p>';
+  d3.selectAll("p").style("color", "red");
+  done();
+}