How to use

ProcessEnv

function

in

1/process

(function getMongoUri(){
  
  var herokuMongoUri = process.env.MONGOLAB_URI || process.env.MONGOHQ_URL;
  var openshiftMongoUri = process.env['OPENSHIFT_'+ dbDialect +'_DB_URL'];
  var envMongoUri =  process.env[dbDialect +'_DB_URL'];
  
  var dialect = dbDialect.toLowerCase().indexOf('mongo') > -1 ? 'mongodb' : dbDialect.toLowerCase();
  
  var dbPasswwordUriPart = config.db.password ? ':' + config.db.password : '';
  
  var constructedUri = dialect + '://' + config.db.username + dbPasswwordUriPart + '@' + config.db.host + ':' + config.db.port + '/' + config.db.name;
  
  
  return herokuMongoUri || openshiftMongoUri || envMongoUri || constructedUri;
})()

beforeEach(function () {
    originalNodeEnv = process.env.NODE_ENV;
    delete process.env.OPENSHIFT_LOG_DIR;
    delete process.env.OPENSHIFT_NODEJS_PORT;
    delete process.env.PORT;
    delete process.env.MONGO_DB_URL;
    delete process.env.MONGO_DB_HOST;
    delete process.env.MONGO_DB_PORT;
    delete process.env.MONGO_DB_NAME;
    delete process.env.MONGO_DB_USERNAME;
    delete process.env.MONGO_DB_PASSWORD;
    delete process.env.OPENSHIFT_MONGO_DB_URL;
    delete process.env.OPENSHIFT_MONGO_DB_HOST;
    delete process.env.OPENSHIFT_MONGO_DB_PORT;
    delete process.env.OPENSHIFT_MONGO_DB_NAME;
    delete process.env.OPENSHIFT_MONGO_DB_USERNAME;
    delete process.env.OPENSHIFT_MONGO_DB_PASSWORD;
    delete process.env.MONGOLAB_URI;
    delete process.env.MONGOHQ_URL;
    delete require.cache[require.resolve('./../../config/config')];
  });