Running tests with Meteor 3+

[jankapunkt]

When running the tests with Meteor 3+ installed I get huge package conflicts mostly due to practicalmeteor:* packages involved.
Since there is no CI on this project I can not determine how the core team runs this in backward compat mode.

Updating them to use meteortesting:mocha works only if on 3.0.0 because 2.x throws Error: Cannot find module 'fibers'
From my end there are the following things that this repo needs:

• update to 3.0 compatibility for testing (meteortesting:mocha)
• add a GitHub actions CI with Matrix test for Meteor 1.7, 2.3 and 3.x
• update README

[jankapunkt]

A working package.js could look like this:

Package.describe({
  name: 'mdg:validated-method',
  summary: 'A simple wrapper for Meteor.methods',
  version: '1.3.0',
  documentation: 'README.md',
});

Package.onUse(function (api) {
  api.versionsFrom(['1.7', '2.3', '3.0']);

  api.use([
    'ecmascript',
    'check',
    'ddp',
  ]);

  api.mainModule('validated-method.js');
  api.export('ValidatedMethod');
});

Package.onTest(function (api) {
  Npm.depends({ chai: '4.3.7' })
  api.use([
    'ecmascript',
    'meteortesting:mocha@3.0.0',
    'aldeed:simple-schema@2.0.0',
    'mdg:validated-method',
    'random',
    'check'
  ]);

  api.mainModule('validated-method-tests.js');
});

A potential ci could be something like this:

name: Test suite

on: [push, pull_request]

jobs:
 tests:
   name: tests
   runs-on: ubuntu-latest
   strategy:
     matrix:
       meteor: ['1.7', '2.3', '2.16', '3.0.4', '3.2.2' ]
   steps:
     - name: checkout
       uses: actions/checkout@v4

     - name: Setup meteor
       uses: meteorengineer/setup-meteor@v2
       with:
         meteor-release: ${{ matrix.meteor }}

     - name: cache dependencies
       uses: actions/cache@v4
       with:
         path: ~/.npm
         key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
         restore-keys: |
           ${{ runner.os }}-node-
     - run: meteor npm run test:ci

note, that 3.0 tests would require a minimal host project (bare) created on the fly because mtest is still not working with Meteor 3 :-(