env passed to config/polly.js is development when tests are executed via ember exam

[azhiv]

Description

env passed to config/polly.js is development when tests are executed via ember exam. ember-exam allows to split tets in chunks and/or run them in parallel.

config/polly.js:

module.exports = function(env) {
  return {
    // Addon Configuration Options
    enabled: env === 'test',

    // Server Configuration Options
    server: {
      apiNamespace: '/polly',
      recordingsDir: 'recordings',
    },
  };
};

ember exam --parallel=2 --load-balance

Error Message & Stack Trace

There's no error message but rather the behaviour is incorrect - polly doesn't get initialized. I added console.log('env :>> ', env); in the beginning of the file and it prints development. Adding EMBER_ENV seems to fix the problem, however it is not documented and intuitively shouldn't be needed at all when running tests.

Dependencies

{
    "@pollyjs/adapter": "6.0.6",
    "@pollyjs/adapter-fetch": "6.0.6",
    "@pollyjs/adapter-xhr": "6.0.6",
    "@pollyjs/core": "6.0.6",
    "@pollyjs/ember": "6.0.6",
    "@pollyjs/node-server": "6.0.6",
    "@pollyjs/persister": "6.0.6",
    "@pollyjs/persister-local-storage": "6.0.6",
    "@pollyjs/persister-rest": "6.0.6",
    "@pollyjs/utils": "6.0.6",
}

Your determineEnv is very fragile and assumes the app is executed with predefined arguments. Why don't you integrate into Ember workflow to pull the exact environment from the app config?