Mirage associated serializer?

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  _observeModel: Ember.observer('model', function(){
    //console.log('model is',this.get('model'));
  })
});

mirage.config.js

import Collection from 'ember-cli-mirage/orm/collection';

export default function() {
  window.server = this;

  this.get('/foo', function(schema, request){
    var posts = schema.posts.all(); 
    //console.log('post:',post);
    //console.log('serialized:',this.serialize(post));
    return posts;
  });
};

mirage.factories.author.js

import { Factory, faker } from 'ember-cli-mirage';

export default Factory.extend({
	name() {
  	return `${faker.name.firstName()} ${faker.name.lastName()}`;
  }
});

mirage.factories.post.js

import { Factory, faker } from 'ember-cli-mirage';

export default Factory.extend({
  title: 'Once upon a time',
  afterCreate(post, server){
    console.log('post factory afterCreate');
    post.update({
    	author: server.create('author')
    });
  }
});

mirage.models.author.js

import { Model, belongsTo } from 'ember-cli-mirage';

export default Model.extend({
  
  
});

mirage.models.post.js

import { Model, belongsTo } from 'ember-cli-mirage';

export default Model.extend({
  author: belongsTo()
});

mirage.scenarios.default.js

export default function(server) {

  server.createList('post',2);
  //console.log('created post',server.schema.posts.first());
  
}

mirage.serializers.application.js

import { RestSerializer } from 'ember-cli-mirage';

export default RestSerializer.extend({
  root: false,
  embed: true,
  serialize(object) {
    // This is how to call super, as Mirage borrows [Backbone's implementation of extend](http://backbonejs.org/#Model-extend)
    let json = RestSerializer.prototype.serialize.apply(this, arguments);
    console.log('application serializer, object=', object, 'json=',json);
    return json;
  }
});

mirage.serializers.author.js

import BaseSerializer from './application';

export default BaseSerializer.extend({
  embed: true,
  serialize(object) {
    // This is how to call super, as Mirage borrows [Backbone's implementation of extend](http://backbonejs.org/#Model-extend)
    let json = BaseSerializer.prototype.serialize.apply(this, arguments);
    console.log('author serializer, object=',object,'json=',json); 
    return json;
  }
});

mirage.serializers.post.js

import BaseSerializer from './application';

export default BaseSerializer.extend({
  embed: true,
  include: ['author'],
  serialize(object) {
    // This is how to call super, as Mirage borrows [Backbone's implementation of extend](http://backbonejs.org/#Model-extend)
    let json = BaseSerializer.prototype.serialize.apply(this, arguments);
    console.log('post serializer, object=',object,'json=',json); 
    return json;
  }
});

routes.application.js

import Ember from 'ember';

export default Ember.Route.extend({
  
  model() {
    return $.get('/foo');
  }
  
});

styles.app.css

body {
  margin: 0;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 12pt;
}

header {
  background: #2e4068;
  color: white;
  padding: 14px 20px;
}
h1 {
  font-size: 12px;
  font-weight: bold;
  text-shadow: none;
  margin: 0 0 2px;
  text-transform: uppercase;
  opacity: 0.5;
}
h2 {
  font-size: 16px;
  margin: 0;
}

p {
  font-weight: normal;
}

.pa4 {
  padding: 20px;
}
.ph4 {
  padding-left: 20px;
  padding-right: 20px;
}
hr {
  border-top: none;
  border-bottom: 1px solid #ddd;
}
.panel {
  background: whitesmoke;
}
.panel__toggle {
  display: block;
  text-decoration: none;
  padding: 8px;
  color: #777;
}
.panel__body {
  padding: 8px;
}

templates.application.hbs

<header>
  <h1>Mirage</h1>
</header>

tests.acceptance.my-acceptance-test.js

import { test } from 'qunit';
import moduleForAcceptance from '../../tests/helpers/module-for-acceptance';

moduleForAcceptance('Acceptance | Users');

test('I can see the users', function(assert) {
  server.create('user', { name: 'Link' });
  
  //visit('/');

  andThen(function() {
    assert.ok(true);
    //assert.ok(find(':contains(Welcome Link!)').length);
  });
});

tests.helpers.destroy-app.js

import Ember from 'ember';

export default function destroyApp(application) {
  Ember.run(application, 'destroy');
}

tests.helpers.module-for-acceptance.js

import { module } from 'qunit';
import startApp from '../helpers/start-app';
import destroyApp from '../helpers/destroy-app';

export default function(name, options = {}) {
  module(name, {
    beforeEach() {
      this.application = startApp();

      if (options.beforeEach) {
        options.beforeEach.apply(this, arguments);
      }
    },

    afterEach() {
      if (options.afterEach) {
        options.afterEach.apply(this, arguments);
      }

      destroyApp(this.application);
    }
  });
}

tests.helpers.resolver.js

import Resolver from '../../resolver';
import config from '../../config/environment';

const resolver = Resolver.create();

resolver.namespace = {
  modulePrefix: config.modulePrefix,
  podModulePrefix: config.podModulePrefix
};

export default resolver;

tests.helpers.start-app.js

import Ember from 'ember';
import Application from '../../app';
import config from '../../config/environment';

export default function startApp(attrs) {
  let application;

  let attributes = Ember.merge({rootElement: "#test-root"}, config.APP);
  attributes = Ember.merge(attributes, attrs); // use defaults, but you can override;

  Ember.run(() => {
    application = Application.create(attributes);
    application.setupForTesting();
    application.injectTestHelpers();
  });

  return application;
}

tests.test-helper.js

import resolver from './helpers/resolver';
import {
  setResolver
} from 'ember-qunit';

setResolver(resolver);

twiddle.json

{
  "version": "0.10.7",
  "ENV": {
    "ember-cli-mirage": {
      "enabled": true
    }
  },
  "EmberENV": {
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.10.0",
    "ember-template-compiler": "2.10.0"
  },
  "addons": {
  	"ember-cli-mirage": "0.2.4"
  }
}