npm test error

[ermya]

Hi
i do npm test and face me error
i have installed btc full node and also couchdb and i just configure the config js file and then i just run npm test and face me error :

SyntaxError: Unexpected token (
at createScript (vm.js:56:10)
at Object.runInThisContext (vm.js:97:10)
at Module._compile (module.js:549:28)
at Object.Module._extensions..js (module.js:586:10)
at Module.load (module.js:494:32)
at tryModuleLoad (module.js:453:12)
at Function.Module._load (module.js:445:3)
at Module.require (module.js:504:17)
at require (internal/module.js:20:19)
at /downloads/Cashier-BTC/node_modules/mocha/lib/mocha.js:231:27
at Array.forEach (native)
at Mocha.loadFiles (/downloads/Cashier-BTC/node_modules/mocha/lib/mocha.js:228:14)
at Mocha.run (/downloads/Cashier-BTC/node_modules/mocha/lib/mocha.js:536:10)
at Object. (/downloads/Cashier-BTC/node_modules/mocha/bin/_mocha:573:18)
at Module._compile (module.js:577:32)
at Object.Module._extensions..js (module.js:586:10)
at Module.load (module.js:494:32)
at tryModuleLoad (module.js:453:12)
at Function.Module._load (module.js:445:3)
at Module.runMain (module.js:611:10)
at run (bootstrap_node.js:394:7)
at startup (bootstrap_node.js:160:9)
at bootstrap_node.js:507:3
npm ERR! Test failed. See above for more details

its installed on centos 7 x64

is there any customization for centos ?