socket.ioエラーのためにMochaテストスクリプトが実行されない

Question

私のコンソールにnpm run testと入力してテスト（mocha）を実行しようとしています。私のチームが書いたコードをいくつか取り除くまで、それは昨日働いていた。何らかの理由でそれを台無しにしました。私たちはSocket.ioを使用するアプリを作成しています。何らかの理由でそれがcmdに表示されます。また、私はこれをPC上で実行しています。

$ npm run test

> potentpotables@1.0.0 test C:\Users\name\Desktop\my_app 
> mocha --compilers js:babel-core/register --require ./test/test_helper.js --recursive ./test 

>C:\Users\name\Desktop\my_app\node_modules\socket.io-client\lib\url.js:29 
    if (null == uri) uri = loc.protocol + '//' + loc.host; 
          ^

TypeError: Cannot read property 'protocol' of undefined 
    at url (C:\Users\name\Desktop\my_app\node_modules\socket.io-client\lib\url.js:29:29) 
    at lookup (C:\Users\name\Desktop\my_app\node_modules\socket.io-client\lib\index.js:44:16) 
    at Object.<anonymous> (sockets_client.js:2:13) 
    at Module._compile (module.js:409:26) 
    at loader (C:\Users\name\Desktop\my_app\node_modules\babel-core\node_modules\babel-register\lib\node.js:158:5) 
    at Object.require.extensions.(anonymous function) [as .js] (C:\Users\name\Desktop\my_app\node_modules\babel-core\node_modules\babel-register\lib\node.js:168:7) 
    at Module.load (module.js:343:32) 
    at Function.Module._load (module.js:300:12) 
    at Module.require (module.js:353:17) 
    at require (internal/module.js:12:17) 
    at Object.<anonymous> (index.js:3:1) 
    at Module._compile (module.js:409:26) 
    at loader (C:\Users\name\Desktop\my_app\node_modules\babel-core\node_modules\babel-register\lib\node.js:158:5) 
    at Object.require.extensions.(anonymous function) [as .js] (C:\Users\name\Desktop\my_app\node_modules\babel-core\node_modules\babel-register\lib\node.js:168:7) 
    at Module.load (module.js:343:32) 
    at Function.Module._load (module.js:300:12) 
    at Module.require (module.js:353:17) 
    at require (internal/module.js:12:17) 
    at Object.<anonymous> (sessionID_reducer.js:1:1) 
    at Module._compile (module.js:409:26) 
    at loader (C:\Users\name\Desktop\my_app\node_modules\babel-core\node_modules\babel-register\lib\node.js:158:5) 
    at Object.require.extensions.(anonymous function) [as .js] (C:\Users\name\Desktop\my_app\node_modules\babel-core\node_modules\babel-register\lib\node.js:168:7) 
    at Module.load (module.js:343:32) 
    at Function.Module._load (module.js:300:12) 
    at Module.require (module.js:353:17) 
    at require (internal/module.js:12:17) 
    at Object.<anonymous> (index.js:2:1) 
    at Module._compile (module.js:409:26) 
    at loader (C:\Users\name\Desktop\my_app\node_modules\babel-core\node_modules\babel-register\lib\node.js:158:5) 
    at Object.require.extensions.(anonymous function) [as .js] (C:\Users\name\Desktop\my_app\node_modules\babel-core\node_modules\babel-register\lib\node.js:168:7) 
    at Module.load (module.js:343:32) 
    at Function.Module._load (module.js:300:12) 
    at Module.require (module.js:353:17) 
    at require (internal/module.js:12:17) 
    at Object.<anonymous> (test_helper.js:9:1) 
    at Module._compile (module.js:409:26) 
    at loader (C:\Users\name\Desktop\my_app\node_modules\babel-core\node_modules\babel-register\lib\node.js:158:5) 
    at Object.require.extensions.(anonymous function) [as .js] (C:\Users\name\Desktop\my_app\node_modules\babel-core\node_modules\babel-register\lib\node.js:168:7) 
    at Module.load (module.js:343:32) 
    at Function.Module._load (module.js:300:12) 
    at Module.require (module.js:353:17) 
    at require (internal/module.js:12:17) 
    at C:\Users\name\Desktop\my_app\node_modules\mocha\bin\_mocha:311:3 
    at Array.forEach (native) 
    at Object.<anonymous> (C:\Users\name\Desktop\my_app\node_modules\mocha\bin\_mocha:310:10) 
    at Module._compile (module.js:409:26) 
    at Object.Module._extensions..js (module.js:416:10) 
    at Module.load (module.js:343:32) 
    at Function.Module._load (module.js:300:12) 
    at Function.Module.runMain (module.js:441:10) 
    at startup (node.js:139:18) 
    at node.js:968:3 

npm ERR! Windows_NT 10.0.10586 
npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "run" "test" 
npm ERR! node v4.4.3 
npm ERR! npm v2.15.1 
npm ERR! code ELIFECYCLE 
npm ERR! my_app@1.0.0 test: `mocha --compilers js:babel-core/register --require ./test/test_helper.js --recursive ./test` 
npm ERR! Exit status 1 
npm ERR! 
npm ERR! Failed at the my_app@1.0.0 test script 'mocha --compilers js:babel-core/register --require ./test/test_helper.js --recursive ./test'. 
npm ERR! This is most likely a problem with the my_app package, 
npm ERR! not with npm itself. 
npm ERR! Tell the author that this fails on your system: 
npm ERR!  mocha --compilers js:babel-core/register --require ./test/test_helper.js --recursive ./test 
npm ERR! You can get information on how to open an issue for this project with: 
npm ERR!  npm bugs my_app 
npm ERR! Or if that isn't available, you can get their info via: 
npm ERR! 
npm ERR!  npm owner ls my_app 
npm ERR! There is likely additional logging output above. 

npm ERR! Please include the following file with any support request: 
npm ERR!  C:\Users\name\Desktop\my_app\npm-debug.log` 

そして、ここに私のpackage.jsonです：：ここで私は、NPMの実行テストを行うとき、それは私を与えることをエラーです

"scripts": { 
    "start": "node ./node_modules/webpack-dev-server/bin/webpack-dev-server.js", 
    "test": "mocha --compilers js:babel-core/register --require ./test/test_helper.js --recursive ./test", 
    "test:watch": "npm run test -- --watch", 
    "dev": "nodemon server/server.js" 
    } 

正直に言うと、私は何全くわからないんだけどここに行く。私はちょうど良いテストを実行しているボイラープレートのpackage.jsonからいくつかのコードをコピーしました。私が書いたtest_helper.jsコードを使用していることは分かっていますが、それ以外のことはわかりません。最後にnpmのデバッグログもあります：

0 info it worked if it ends with ok 
1 verbose cli [ 'C:\\Program Files\\nodejs\\node.exe', 
1 verbose cli 'C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js', 
1 verbose cli 'run', 
1 verbose cli 'test' ] 
2 info using npm@2.15.1 
3 info using node@v4.4.3 
4 verbose run-script [ 'pretest', 'test', 'posttest' ] 
5 info pretest my_app@1.0.0 
6 info test my_app@1.0.0 
7 verbose unsafe-perm in lifecycle true 
8 info my_app@1.0.0 Failed to exec test script 
9 verbose stack Error: my_app@1.0.0 test: `mocha --compilers js:babel-core/register --require ./test/test_helper.js --recursive ./test` 
9 verbose stack Exit status 1 
9 verbose stack  at EventEmitter.<anonymous> (C:\Program Files\nodejs\node_modules\npm\lib\utils\lifecycle.js:217:16) 
9 verbose stack  at emitTwo (events.js:87:13) 
9 verbose stack  at EventEmitter.emit (events.js:172:7) 
9 verbose stack  at ChildProcess.<anonymous> (C:\Program Files\nodejs\node_modules\npm\lib\utils\spawn.js:24:14) 
9 verbose stack  at emitTwo (events.js:87:13) 
9 verbose stack  at ChildProcess.emit (events.js:172:7) 
9 verbose stack  at maybeClose (internal/child_process.js:827:16) 
9 verbose stack  at Process.ChildProcess._handle.onexit (internal/child_process.js:211:5) 
10 verbose pkgid my_app@1.0.0 
11 verbose cwd C:\Users\name\Desktop\my_app 
12 error Windows_NT 10.0.10586 
13 error argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "run" "test" 
14 error node v4.4.3 
15 error npm v2.15.1 
16 error code ELIFECYCLE 
17 error my_app@1.0.0 test: `mocha --compilers js:babel-core/register --require ./test/test_helper.js --recursive ./test` 
17 error Exit status 1 
18 error Failed at the my_app@1.0.0 test script 'mocha --compilers js:babel-core/register --require ./test/test_helper.js --recursive ./test'. 
18 error This is most likely a problem with the my_app package, 
18 error not with npm itself. 
18 error Tell the author that this fails on your system: 
18 error  mocha --compilers js:babel-core/register --require ./test/test_helper.js --recursive ./test 
18 error You can get information on how to open an issue for this project with: 
18 error  npm bugs my_app 
18 error Or if that isn't available, you can get their info via: 
18 error 
18 error  npm owner ls my_app 
18 error There is likely additional logging output above. 
19 verbose exit [ 1, true ] 

ありがとうございました！

Answer 1

socket.ioに渡されるURLは、おそらくundefinedです。 socket.ioを使用するコードを共有できますか？

var socket = require('socket.io-client')('http://localhost'); 

我々はES6の構文を使用している、リアクト使用しているので、そのコードの「http://localhost」はundefined