Declare test dependency using Npm.depends

Question

I would like to know how to declare a dependency on an Npm module in Meteor only in test.

While testing a package, I can easily declare a Npm dependency in package.js like this:

Npm.depends({
  ...
  'sinon': '1.15.3'
  ...
});

But I am only using sinon in test, and I want to make it explicit.

I tried the following with no success.

Package.onTest(function(api) {
  // # 1
  // can't do this because it is not a meteor module
  api.use('sinon');

  // # 2
  // can't because I have other production Npm dependencies
  // and Meteor only allows one `Npm.depends` call per `package.js`.
  // Also, not sure if nesting Npm.depends() is allowed at all.
  Npm.depends({
    'sinon': '1.15.3'
  });


});

Any suggestions?

Answer 1

The only way to do this is to wrap sinon into a package and api.use it. You can do the following:

$ meteor create --package sinon

Replace the contents of packages/sinon with the following:

package.js

Package.describe({
  summary: 'Standalone test spies, stubs and mocks for JavaScript.'
});

Package.onUse(function(api) {
  api.versionsFrom('1.0.4');
  api.export('sinon', 'server');
  api.addFiles('sinon.js');
  api.addFiles('post.js');
});

post.js

sinon = this.sinon;

sinon.js

Download the latest version from here.

Finally in the package you are testing, you can add api.use('sinon'); in your Package.onTest.

---

As an alternative to making your own package, you can just use one of the community versions available here.