Integrating mocha tests with riemann

mochariemann.js

var failedTests = [];
new Mocha()
    .ui("bdd")
    .reporter("tap")
    .addFile(__dirname + '/' + testSuiteName + '.js')
    .run()
    .on('fail', function (test, err) {
        failedTests.push(test); 
      })
    .on('end', function () {
        var event = riemann.Event({
              host: hostBeingTested,
              service: testSuiteName + " test suite",
              state: failedTests.length == 0 ? "passed" : "failed",
              tags: ["test"]
              description: failedTests.map(function(test) {
                return test.fullTitle() + "\n" + test.err.stack;
              }).join('\n'),
          });
          riemann.send(event, client.tcp);
      })