mocha add all files in a path or directory to run tests on

mocha addPath sample

var Mocha = require('mocha'),
  fs = require('fs'),
  _ = require('underscore');

var mocha = new Mocha({reporter: 'spec', ui: 'bdd'});
 
mocha.addPath = function(dir){
  fs.readdirSync(dir).filter(function(file){
    var fileArray = file.split('.');
        
    if(fileArray.length == 1){
      mocha.addPath(dir + "/" + fileArray[0]);
    }
    else if(fileArray.length > 1 && _.last(fileArray) == "js"){
      var filePath = dir + "/" + file;
      mocha.addFile(filePath);
    }
    else{
      console.log("Warning: " + file + " is not a .js file in test path");
    }
  });


}

function run_tests(cb) {
    mocha.addPath("./test");
    mocha.run(function(failures) {
      cb(failures);
    });
}