CI with mocha and express

I want start tests on each get request and store status to local db. Tests starts only on first request

var express = require('express');
var path = require('path');
var Mocha = require('mocha');
var morgan = require('morgan');
var bodyParser = require('body-parser');

var app = express();


app.use(morgan('dev'));
app.use(bodyParser.json());

app.get('/api/github/serviceX', function (req, res) {

   var mocha = new Mocha({
       timeout:60000,
   });

   mocha.addFile('test/serviceX.js');
   var passed = [];
   var failed = [];

   mocha.run(function () {

    console.log(passed.length + ' Tests Passed');
    passed.forEach(function(testName){
        console.log('Passed:', testName);
    });

    console.log("\n"+failed.length + ' Tests Failed');
    failed.forEach(function(testName){
        console.log('Failed:', testName);
    });


      store("serviceX", [passed, failed]);

     res.send(200, format(passed, failed);
   }).on('fail', function(test){
      failed.push(test);
   }).on('pass', function(test){
      passed.push(test);
   });
});

First request runs good

4 passing (10s) 4 Tests Passed 0 Tests Failed

Second and next requests does not starts tests

0 passing (0ms)

0 Tests Passed

0 Tests Failed