How can I run mocha with npm script?

Question

I have implemented a testcase for my script and it runs pretty fine when I execute it in Webstorm with the configuration for mocha.

The name of my test script is adminTest.js.

Now I like to have a npm script to run it from the console or later from the build server.

Therefor I have made a script entry in my package.json

Here is the complete file:

{
  "name": "cdh",
  "version": "0.0.1",
  "description": "CDH connector",
  "main": "cdh.js",
  "private" : true,
  "dependencies": {
    "cli-color": "^1.0.0",
    "handlebars": "^4.0.3",
    "sync-request": "^2.0.1",
    "jslint": "^0.9.3",
    "xmldom": "^0.1.19",
    "xpath": "^0.0.9",
    "mocha": "2.3.3 ",
    "proxyquire": "1.7.3",
    "mocha-sinon": "1.1.4",
    "jasmine" : "2.3.2",
    "chai" : "3.4.1"
  },
  "devDependencies": {},
  "scripts": {
    "test": "node ./node_modules/mocha/bin/mocha tests/**/*Test.js --reporter spec"
  },
  "author": "kme",
  "license": "ISC"
}

When I start the script with npm run test from the console it leads to this error:

> [email protected] test C:\src\trunk\scripts\testing
> node ./node_modules/mocha/bin/mocha tests/**/*Test.js --reporter spec


npm ERR! Windows_NT 6.1.7601
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 v4.2.0
npm ERR! npm  v2.14.7
npm ERR! code ELIFECYCLE
npm ERR! [email protected] test: `node ./node_modules/mocha/bin/mocha tests/**/*Test.js
--reporter spec`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] test script 'node ./node_modules/mocha/bin/moch
a tests/**/*Test.js --reporter spec'.
npm ERR! This is most likely a problem with the cdh package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node ./node_modules/mocha/bin/mocha tests/**/*Test.js --reporter sp
ec
npm ERR! You can get their info via:
npm ERR!     npm owner ls cdh
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     C:\src\trunk\scripts\testing\npm-debug.log

The npm-debug.log file looks like:

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 [email protected]
3 info using [email protected]
4 verbose run-script [ 'pretest', 'test', 'posttest' ]
5 info pretest [email protected]
6 info test [email protected]
7 verbose unsafe-perm in lifecycle true
8 info [email protected] Failed to exec test script
9 verbose stack Error: [email protected] test: `node ./node_modules/mocha/bin/mocha tests/**/*Test.js --reporter spec`
9 verbose stack Exit status 1
9 verbose stack     at EventEmitter.<anonymous> (C:\Program Files\nodejs\node_modules\npm\lib\utils\lifecycle.js:214:16)
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:818:16)
9 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:211:5)
10 verbose pkgid [email protected]
11 verbose cwd C:\src\trunk\scripts\testing
12 error Windows_NT 6.1.7601
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 v4.2.0
15 error npm  v2.14.7
16 error code ELIFECYCLE
17 error [email protected] test: `node ./node_modules/mocha/bin/mocha tests/**/*Test.js --reporter spec`
17 error Exit status 1
18 error Failed at the [email protected] test script 'node ./node_modules/mocha/bin/mocha tests/**/*Test.js --reporter spec'.
18 error This is most likely a problem with the cdh package,
18 error not with npm itself.
18 error Tell the author that this fails on your system:
18 error     node ./node_modules/mocha/bin/mocha tests/**/*Test.js --reporter spec
18 error You can get their info via:
18 error     npm owner ls cdh
18 error There is likely additional logging output above.
19 verbose exit [ 1, true ]

Solution 1

Your script definition should not include node:

"scripts": {
    "test": "./node_modules/mocha/bin/mocha tests/**/*Test.js --reporter spec"
},

Or, if mocha is installed globally:

"scripts": {
    "test": "mocha tests/**/*Test.js --reporter spec"
},

See also: Configure node npm package.json so that "npm test" works on both unix and windows.

Update: Ah is see you are working on windows, try changing the script as mentioned in the above post:

"testOnWindowsUseThis" : "node node_modules/mocha/bin/mocha"

Solution 2

Use npx mocha if npm run test doesn't work.

Comments

[Kris]

I assume that there is a problem with my mocha. It allways returns with exit code 1 but no further error message

[Sonata]

Maybe you can add some console.log to the bin/mocha script and/or the lib/mocha.js to see if and how they are called.

[Spain Train]

you do not need the ./node_modules/mocha/bin/, npm scripts run with node_modules/.bin in the PATH - docs.npmjs.com/misc/scripts#path

[Robot70]

If mocha 4.x or greater: "scripts": { "test": "mocha --exit" },