Setup globals via karma.conf.js

It would be helpful to allow karma to setup globals in karma.conf.js via a globals object. This would be, for instance, helpful with tests that run agains an API (like contract tests).

If the configuration is kept in a json file (common scenario), it currently requires a trickery like this:

var fs = require('fs');
var MY_GLOBAL_API = 'some global value';
fs.writeFileSync('globals.js'), 'apiEndpoint = "' + MY_GLOBAL_API + '";', 'utf8');

module.exports = function(config) {

  var configuration = {
    files: [
        'globals.js'
        .....

It would have been a bit easier with:

var MY_GLOBAL_API = 'some global value';
module.exports = function(config) {

  var configuration = {
    globals.apiEndpoint = MY_GLOBAL_API;
    .....

Sort of similar to how protractor does it. I’d be happy to work on a PR.

[dignifiedquire]

I think this could be a plugin rather than core functionality. It would have a config very similar to what you suggesed:

module.exports = function (config) {
  config.set({
    globals: {
      myGlobal: 42
    }
  })
}

and would under the hood just generate a globals file and inject it into the files array.

[mgenov]

Does anyone has solution of this issue since 2016 ?