npm posttest doesn't trigger if npm test fails

Question

Is there a way to trigger npm's posttest when test fails? If package.json contains

"scripts": {
  "pretest": "echo pretest",
  "test": "some_failed_test_or_error",
  "posttest": "echo posttest"
}

$ npm test will echo "pretest" but not "posttest".

I get the same behavior if I use mocha and a test fails, even if mocha doesn't trigger any exceptions (just some simple failure assert(true==false)).

I'm launching a resource on pretest, and I'd like to kill the resource on posttest, whether the test itself passes or fails.

MacOS OS X 10.9.4, npm version 1.4.21, node v0.10.30.

Answer 1

Worked it out. Not sure if the following will work in Windows. The bash || operator followed by an empty comment : changes the exit code.

For instance, using mocha:

"scripts": {
  "pretest": "echo pretest",
  "test": "mocha || :",
  "posttest": "echo posttest"
}